SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a casing gas tightness detection device to solve the casing gas tightness that exists among the prior art and detect the installation and take trouble hard, and the relatively poor technical problem of stationarity.
In order to achieve the above object, the utility model adopts the following technical scheme: provided is a casing airtightness detecting device including:
the box body is internally filled with liquid for detecting air tightness; an installation platform moving up and down is arranged in the box body, and the shell is used for being installed on the installation platform; the outer wall of the box body is provided with a guide rail which is vertically arranged;
the connecting plate is positioned above the box body; the lower end of the connecting plate is provided with a first connecting rod and a second connecting rod which extend downwards, and the lower end of the first connecting rod extends into the box body and is fixedly connected with the mounting table; the second connecting rod extends downwards and is connected with the guide rail in a sliding manner;
the compressed gas tank is used for being connected with the upper end of the shell in a sealing mode and used for filling gas into the shell to detect the air tightness of the shell;
the linear driver is fixedly arranged on one side of the box body; the free end of the linear driver extends upwards and is fixedly connected with the connecting plate.
In a possible implementation manner, a sliding block is arranged on the guide rail, and the second connecting rod is fixedly connected with one side, away from the guide rail, of the sliding block.
In a possible implementation manner, the sliding block is multiple and is arranged on the guide rail at intervals.
In a possible realization, the upper end of the guide rail is provided with a limit stop for limiting the position of the slide.
In a possible implementation manner, the length direction of the connecting plate is the same as that of the box body, and a plurality of guide rails are fixedly arranged on two sides of the outer wall of the box body respectively; the first connecting rods and the second connecting rods are multiple and are respectively positioned on two sides of the lower end face of the connecting plate; the plurality of second connecting rods correspond to the plurality of guide rails one to one.
In a possible implementation manner, a reinforcing rib plate is arranged between the first connecting rod and the mounting platform.
In a possible implementation manner, the device for detecting the airtightness of the casing further includes:
the supporting seat is used for supporting on the ground; the box body and the linear driver are fixedly arranged on the supporting seat.
In one possible implementation manner, the supporting seat comprises a supporting plate and a plurality of supporting feet which are arranged at the lower end of the supporting plate; the support plate is provided with a plurality of avoiding holes, and the lower end of the guide rail is located in the corresponding avoiding hole or below the support plate.
In a possible implementation manner, a drain valve for draining liquid inside the box body is arranged on the outer wall of the box body.
In one possible implementation, the linear actuator is a cylinder or a ram.
The utility model provides a casing gas tightness detection device's beneficial effect lies in: compared with the prior art, the shell air tightness detection device of the utility model contains liquid in the box body when in use, and starts the linear driver to drive the connecting plate, the first connecting rod and the mounting platform to move up to the port of the box body, and a worker installs the shell to be detected on the mounting platform and connects the shell to be detected with the compressed gas tank; the connecting plate, the first connecting rod and the mounting platform are driven to descend into the box body by reversely starting the linear driver, the shell is submerged in liquid, the compressed gas tank is started to fill gas into the shell, and a worker judges the gas tightness of the shell by observing whether bubbles exist in the liquid; in the lifting process of the connecting plate and the mounting table, the second connecting rod on the connecting plate moves along the guide rail, so that the accuracy of the moving process of the connecting plate and the mounting table is ensured. Through the mode, the mounting platform in the box body is controlled to move up and down quickly and efficiently by virtue of the linear driver, the connecting plate and the first connecting rod, so that workers can conveniently disassemble and assemble the shell and the compressed gas tank, and the connecting plate and the mounting platform can stably and accurately move up and down by virtue of the sliding fit connection of the second connecting rod and the guide rail; not only achieves the purpose of saving time and labor, but also improves the stability of the working process.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 4, a device for detecting shell airtightness according to the present invention will now be described. A casing airtightness detection device comprises a box body 1, a connecting plate 2, a compressed air tank 3 and a linear driver 4; the box body 1 is internally filled with liquid 11 for detecting air tightness; an installation platform 12 which moves up and down is arranged in the box body 1, and the shell 6 is used for being installed on the installation platform 12; the outer wall of the box body 1 is provided with a guide rail 13 which is vertically arranged; the connecting plate 2 is positioned above the box body 1; the lower end of the connecting plate 2 is provided with a first connecting rod 21 and a second connecting rod 22 which extend downwards, and the lower end of the first connecting rod 21 extends into the box body 1 and is fixedly connected with the mounting table 12; the second connecting rod 22 extends downwards to be connected with the guide rail 13 in a sliding manner; the compressed gas tank 3 is used for being connected with the upper end of the shell 6 in a sealing mode and is used for filling gas into the shell 6 so as to detect the gas tightness of the shell 6; the linear driver 4 is fixedly arranged on one side of the box body 1; the free end of the linear drive 4 extends upwards and is fixedly connected to the connecting plate 2.
Compared with the prior art, the shell airtightness detection device provided by the utility model is used for containing liquid 11 in the box body 1, starting the linear driver 4 to drive the connecting plate 2, the first connecting rod 21 and the mounting platform 12 to move up to the port of the box body 1, and installing the shell 6 to be detected on the mounting platform 12 and connecting the shell 6 to be detected with the compressed gas tank 3 by a worker; the reverse starting linear driver 4 drives the connecting plate 2, the first connecting rod 21 and the mounting platform 12 to descend into the box body 1, the shell 6 is submerged in the liquid 11, the compressed air tank 3 is started to fill air into the shell 6, and a worker judges the air tightness of the shell 6 by observing whether bubbles exist in the liquid 11; in the lifting process of the connecting plate 2 and the mounting table 12, the second connecting rod 22 on the connecting plate 2 moves along the guide rail 13, so that the accuracy of the moving process of the connecting plate 2 and the mounting table 12 is ensured. In this way, the linear driver 4, the connecting plate 2 and the first connecting rod 21 are used for controlling the mounting table 12 in the box body 1 to move up and down quickly and efficiently, so that workers can conveniently disassemble and assemble the shell 6 and the compressed gas tank 3, and the second connecting rod 22 is connected with the guide rail 13 in a sliding fit manner, so that the connecting plate 2 and the mounting table 12 can move up and down stably and accurately; not only achieves the purpose of saving time and labor, but also improves the stability of the working process.
The liquid 11 may be liquid water as it is. The compressed gas tank 3 comprises a tank body and a connector, the connector is hermetically connected with the shell 6, and the tank body is connected with the connector through a hose and used for filling gas into the shell 6.
Referring to fig. 1, fig. 2 and fig. 4, as a specific embodiment of the device for detecting the airtightness of the casing according to the present invention, a sliding block 14 is disposed on the guide rail 13, and the second connecting rod 22 is fixedly connected to a side of the sliding block 14 away from the guide rail 13; a sliding block 14 which is connected with the guide rail 13 in a sliding fit mode is installed on the guide rail 13, the sliding block 14 slides up and down along the length direction of the guide rail 13, a second connecting rod 22 is fixedly connected with the sliding block 14, after the linear driver 4 is started, the connecting plate 2 is controlled to move up and down, and under the interaction of the second connecting rod 22, the sliding block 14 and the guide rail 13, the connecting plate 2 is guided to move stably, so that a first connecting rod 21 at the lower end of the connecting plate 2, the installation table 12 and the shell 6 move up and down; in this way, under the limitation of the second connecting rod 22 and the slider 14 on the guide rail 13, the connecting plate 2 and the first connecting rod 21 drive the mounting table 12 and the housing 6 to move quickly and accurately.
Referring to fig. 1, 2 and 4, as a specific embodiment of the device for detecting shell air tightness provided by the present invention, a plurality of sliders 14 are arranged on the guide rail 13 at intervals; the plurality of sliders 14 are arranged on each guide rail 13 and arranged along the length direction of the guide rail 13, an interval is formed between every two adjacent sliders 14, and the second connecting rod 22 is fixedly connected with one side of each slider 14.
Referring to fig. 1, 2 and 4, as a specific embodiment of the device for detecting the airtightness of the casing according to the present invention, a limit stop 15 for limiting the position of the slider 14 is disposed at the upper end of the guide rail 13; the movement of the sliding block 14 is limited by the limit stop 15, the highest position of the sliding block 14 is determined, the sliding block 14 can be effectively prevented from being separated from the guide rail 13, and the connecting plate 2 is ensured to move smoothly under the action of the linear driver 4. Further, the position of the mounting table 12 in the tank 1 facilitates control of the entry of the mounting table 12 and the housing 6 into the liquid 11 or the exit from the liquid 11, and also facilitates the installation of the compressed gas tank 3.
Referring to fig. 1 to 3, as a specific embodiment of the casing airtightness detection apparatus provided in the present invention, the length direction of the connection plate 2 is the same as the length direction of the box body 1, and a plurality of guide rails 13 are fixedly disposed on two sides of the outer wall of the box body 1 respectively; the first connecting rods 21 and the second connecting rods 22 are multiple and are respectively positioned at two sides of the lower end surface of the connecting plate 2; the plurality of second connecting rods 22 correspond to the plurality of guide rails 13 one to one; that is, the plurality of first connecting rods 21 and the plurality of second connecting rods 22 are installed at the lower ends of the connecting plates 2, and the plurality of guide rails 13 are installed on the outer wall of the case 1, so that the plurality of second connecting rods 22 are slidably fitted to the corresponding guide rails 13; the lower ends of the first connecting rods 21 are fixedly connected with the mounting table 12, so that the mounting table 12 and the housing 6 can be more firmly driven to move up and down by the first connecting rods 21 under the action of the linear actuator 4, and the connecting plates 2 and the mounting table 12 can move more stably by the sliding fit of the second connecting rods 22 and the guide rails 13.
Referring to fig. 1 to 3, as an embodiment of the device for detecting the airtightness of the casing according to the present invention, a reinforcing rib 211 is disposed between the first connecting rod 21 and the mounting platform 12; the first connecting rod 21 is fixedly connected with the mounting table 12, the connecting part of the first connecting rod 21 and the mounting table 12 bears the weight of the connecting plate 2, the shell 6 and the compressed air tank 3, in order to improve the connection firmness of the first connecting rod 21 and the mounting table 12, a reinforcing rib plate 211 is arranged between the first connecting rod 21 and the mounting table 12, two adjacent side surfaces of the reinforcing rib plate 211 are respectively and fixedly connected with the first connecting rod 21 and the mounting table 12, the bearing capacity of the first connecting rod 21 is improved by the reinforcing rib plate 211, and the mounting table 12 and the shell 6 can be stably and reliably driven to move up and down.
Referring to fig. 1 to 4, as a specific embodiment of the casing airtightness detection apparatus provided in the present invention, the casing airtightness detection apparatus further includes a support base 5, and the support base 5 is used for being supported on the ground; the box body 1 and the linear driver 4 are both fixedly arranged on the supporting seat 5; in order to ensure that the box body 1 and the linear driver 4 are stably and reliably installed and operate, the supporting seat 5 is fixedly installed on the ground, the box body 1 and the linear driver 4 are fixed on the upper end face of the supporting seat 5, the box body 1 is stably and fixedly installed by means of the flat upper end face of the supporting seat 5, and the linear driver 4 is vertically and fixedly installed, so that the connecting plate 2, the installation table 12 and the shell 6 can be driven to accurately move; the mount table 12 is prevented from contacting the inner sidewall of the cabinet 1. The upper end surface of the supporting seat 5 is larger than the sum of the bottom surface of the box body 1 and the bottom surface of the linear driver 4.
Referring to fig. 1 to 3, as an embodiment of the device for detecting the airtightness of the casing according to the present invention, the supporting seat 5 includes a supporting plate 51 and a plurality of supporting legs 52 mounted at a lower end of the supporting plate 51; a plurality of avoidance holes 53 are formed in the support plate 51, and the lower end of the guide rail 13 is positioned in the corresponding avoidance hole 53 or below the support plate 51; constitute supporting seat 5 by backup pad 51 and a plurality of stabilizer blade 52, a plurality of stabilizer blades 52 support simultaneously in subaerial, and the up end of backup pad 51 is used for installing box 1 and linear actuator 4, reduces the area of contact of supporting seat 5 with ground through a plurality of stabilizer blades 52, makes supporting seat 5 change the adjustment levelness, improves the installation accuracy of box 1, linear actuator 4.
The support plate 51 is provided with the avoidance hole 53, so that the lower end of the guide rail 13 can extend downwards into the avoidance hole 53, the up-down moving range of the second connecting rod 22 or the sliding block 14 is enlarged, and the height of the connecting plate 2 and the length of the first connecting rod 21 are further reduced.
A plurality of fabrication holes may be formed in the support plate 51, and the weight of the support base 5 may be effectively reduced by the plurality of fabrication holes and the relief holes 53.
The four support legs 52 are fixedly mounted at four corners of the lower end surface of the support plate 51, respectively, and stand on the ground more stably to support the support plate 51.
Referring to fig. 3 and 4, as a specific embodiment of the casing airtightness detection apparatus provided in the present invention, a drain valve 16 for discharging the liquid 11 inside the casing 1 is disposed on an outer wall of the casing 1; after many times of air tightness detection, impurities and the like on the shell 6 enter the box body 1 to cause the liquid 11 to be dirty, in order to guarantee the bubble observation accuracy in the air tightness detection process, a worker needs to open the drain valve 16 to release the liquid 11 in the box body 1 and replace the liquid 11, and the purity of the liquid 11 used for the air tightness test in the box body 1 is guaranteed.
Optionally, the inner walls of the tank 1 are cleaned before adding new liquid 11 into the tank 1.
A connecting hole is formed in the wall of the box body 1, a liquid outlet pipe is hermetically arranged in the connecting hole, and a drain valve 16 is arranged on the liquid outlet pipe.
Referring to fig. 1 and 2, as a specific embodiment of the device for detecting shell air tightness provided by the present invention, the linear actuator 4 is a cylinder or an oil cylinder; when the air cylinder is adopted as the linear driver 4, the air cylinder is convenient to install and saves labor because the air cylinder has lighter weight; meanwhile, the noise of the air cylinder is low, the working environment of workers is favorably improved, and physical and psychological damage to the workers is reduced.
When the oil cylinder is adopted as the linear driver 4, oil is used for pushing a piston in the oil cylinder to move, so that the moving process is stable, and no transmission gap exists; and the output force of the oil cylinder is large, so that the movement reliability of the connecting plate 2 and the mounting table 12 is high.
The linear driver 4 may also be a driving device such as an electric push rod capable of performing linear motion.
When the air cylinder or the oil cylinder is installed, the air cylinder or the oil cylinder is fixed on the ground or the supporting plate 51, and a piston rod of the air cylinder or the oil cylinder extends upwards and is fixedly connected with the connecting plate 2 through welding and the like.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.