CN216524606U

CN216524606U - Air tightness detection device

Info

Publication number: CN216524606U
Application number: CN202122230258.9U
Authority: CN
Inventors: 滕兆龙
Original assignee: Suzhou Zhuotech Automation Technology Co ltd
Current assignee: Suzhou Zhuotech Automation Technology Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-05-13
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses air tightness detection equipment, which comprises a detection box, a top cover and a threaded hole, wherein the top cover is arranged above the detection box, and the detection box comprises: a hydraulic pipe connected with the outer side; a push rod is arranged on the top of the hydraulic pipe; a piston arranged at the bottom of the push rod and detection liquid stored in the detection box. The utility model is provided with a detection box and a hydraulic pipe, when the air tightness of the automobile parts is detected, the automobile parts are immersed in detection liquid, after a top cover is closed, a piston is driven by a push rod to move to pressurize the detection liquid, water pressure is detected by a pressure gauge, if the air tightness of the parts is not good, bubbles are rapidly generated under a high pressure state, the detection efficiency is improved, the positioning ring is arranged on the inner wall of the detection box, the automobile parts to be detected are conveniently fixed in the detection box by virtue of a binding band, the parts are prevented from moving in the detection process, the pressure applied in different directions is prevented from changing, and the detection effect is ensured.

Description

Air tightness detection device

Technical Field

The utility model relates to the technical field of automobile part detection, in particular to air tightness detection equipment.

Background

With the progress of industrial technology and the improvement of human living standard, people use various automobiles more and more frequently, automobiles become the most common vehicles in daily life, the safety and the comfort of the automobiles are very important problems in the use of the automobiles, in order to improve the safety and the comfort of automobile running, a shock absorber is adopted in an automobile suspension system and mainly comprises a spring and a damper, and in the internal structure of the damper, one end of a piston rod of the automobile shock absorber is connected with a piston in the damper to drive the piston to move up and down. In practical application, a novel inductance piston rod is commonly used for an automobile shock absorber, an electric wire is arranged inside the piston rod of the piston rod, and one end of the piston rod is in contact with hydraulic oil, so that the air tightness of the piston rod needs to be detected, a plurality of water channels for cooling water to circulate are arranged in a cylinder body of an automobile engine and are connected with a radiator (commonly called a water tank) arranged at the front part of an automobile through water pipes to form a large water circulation system, a water pump is arranged at an upper water outlet of the engine and pumps out hot water in the water channels of the cylinder body of the engine through a fan to pump cold water into the cylinder body, a thermostat is arranged beside the water pump, when the automobile is just started (cold automobile), the water is not opened, the cooling water does not pass through the water tank and only circulates in the engine (commonly called small circulation), when the temperature of the engine reaches more than 95 ℃, the water in the engine is opened, and the hot water in the engine is pumped into the water tank, cold air when the automobile moves ahead blows through the water tank and takes away heat, and many parts of the automobile need to be detected for air tightness when being produced.

The existing air tightness detection equipment is immersed in water in the using process, and whether a workpiece leaks or not and the leakage degree are judged according to air bubbles in the water by visual inspection. The method has low test efficiency, is greatly influenced by subjective factors, reduces the automatic level of the equipment and reduces the working efficiency.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an air-tightness detecting apparatus to solve the problems set forth in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an air tightness detection equipment, includes the top cap of detection case, top installation to and the screw hole of seting up, the detection case includes:

a hydraulic pipe connected with the outer side;

a push rod is arranged on the top of the hydraulic pipe;

a piston mounted at the bottom of the push rod, an

And detection liquid stored in the detection box.

Furthermore, the hydraulic pipe and the detection box are connected through welding to form a fixed structure, the hydraulic pipe is communicated with the bottom of the detection box, the push rod drives the piston to form a sliding structure along the inner wall of the hydraulic pipe, and a rubber ring is installed on the outer side of the piston.

Further, the top cover includes:

a top mounted pressure gauge;

a probe is connected and installed below the pressure gauge;

a positioning frame mounted at the top;

a tempered glass plate installed in the positioning frame;

a connecting screw mounted on the positioning frame, and

and a sealing ring is arranged at the bottom of the top cover.

Further, the pressure gauge and the top cover are connected through welding to form a fixing structure, the pressure gauge is connected with the probe, the probe is inserted into the detection liquid, and a pressure sensing device is arranged on the probe.

Furthermore, the positioning frame is connected with the top cover through a connecting screw to form a fixing structure, the toughened glass plate is connected with the top cover through the positioning frame to form a fixing structure, and the sealing ring is connected with the bottom of the top cover through an annular clamping groove in a clamping mode to form a fixing structure.

Further, the threaded hole includes:

a fixing bolt installed inside;

a positioning ring mounted on the inner wall of the detection box, an

And a binding band is arranged on the positioning ring.

Furthermore, fixing bolts and screw holes are connected through threads to form a fixing structure, four fixing bolts are symmetrically installed on the fixing bolts, and the detection box and the top cover are connected through the fixing bolts to form a fixing structure.

Furthermore, the locating ring symmetry is provided with six, and the locating ring passes through welded connection with the detection case inner wall and constitutes fixed knot structure, the bandage is connected with locating ring and required detection work piece and constitutes fixed knot structure.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model is provided with the detection box and the hydraulic pipe, when the air tightness detection is carried out on the automobile parts, the automobile parts are immersed in the detection liquid, after the top cover is closed, the piston is driven by the push rod to move to pressurize the detection liquid, the water pressure is detected by the pressure gauge, if the air tightness of the parts is not good, bubbles are rapidly generated under a high-pressure state, and the detection efficiency is improved.

2. The positioning ring is arranged on the inner wall of the detection box, so that automobile parts to be detected can be conveniently fixed in the detection box by virtue of the binding belt, the pressure on different directions is prevented from changing due to the fact that the parts move in the detection process, and the detection effect is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of the front view of the internal structure of the present invention.

Fig. 2 is a schematic view of the structure of the top cover of the present invention.

FIG. 3 is a schematic top view of the inspection box of the present invention.

In the figure: 1. a detection box; 110. a hydraulic tube; 120. a push rod; 130. a piston; 140. detecting the liquid; 2. a top cover; 210. a pressure gauge; 220. a probe; 230. a positioning frame; 240. tempering the glass plate; 250. a connecting screw; 260. a seal ring; 3. a threaded hole; 310. fixing the bolt; 320. a positioning ring; 330. and (4) binding the bands.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained by combining the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention is shown: the utility model provides an air tightness detection equipment, includes top cap 2 of detection case 1, top installation to and the screw hole 3 of seting up, detection case 1 includes: an outside-connected hydraulic pipe 110; a push rod 120 mounted on the top of the hydraulic pipe 110; a piston 130 mounted on the bottom of the push rod 120, and a detection liquid 140 stored in the detection box 1.

The hydraulic pipe 110 and the detection box 1 are connected by welding to form a fixed structure, the hydraulic pipe 110 is communicated with the bottom of the detection box 1, the push rod 120 drives the piston 130 to form a sliding structure along the inner wall of the hydraulic pipe 110, and a rubber ring is installed on the outer side of the piston 130.

The top cover 2 includes: a top mounted pressure gauge 210; a probe 220 connected and installed below the pressure gauge 210; a top mounted positioning frame 230; a tempered glass plate 240 installed in the positioning frame 230; a connecting screw 250 arranged on the positioning frame 230 and a sealing ring 260 arranged at the bottom of the top cover 2.

The pressure gauge 210 and the top cover 2 are connected by welding to form a fixed structure, the pressure gauge 210 is connected with the probe 220, the probe 220 is inserted into the detection liquid 140, and the probe 220 is provided with a pressure sensing device, so that the pressure of the detection liquid 140 can be detected conveniently in real time.

The positioning frame 230 is connected with the top cover 2 through the connecting screw 250 to form a fixed structure, the toughened glass plate 240 is connected with the top cover 2 through the positioning frame 230 to form a fixed structure, the sealing ring 260 is connected with the bottom of the top cover 2 through the clamping of the annular clamping groove to form a fixed structure, so that whether bubbles are generated in the detection liquid 140 or not can be observed through the toughened glass plate 240, and whether the air tightness of automobile parts is good or not can be judged.

The threaded hole 3 includes: an internally mounted fixing bolt 310; a positioning ring 320 arranged on the inner wall of the detection box 1, and a binding belt 330 arranged on the positioning ring 320.

Fixing bolt 310 and screw hole 3 pass through threaded connection and constitute fixed knot structure, and fixing bolt 310 symmetry installs four, and detection case 1 is connected with top cap 2 through fixing bolt 310 and constitutes fixed knot structure.

The positioning ring 320 is symmetrically provided with six positioning rings, the positioning ring 320 and the inner wall of the detection box 1 are connected through welding to form a fixing structure, and the binding band 330, the positioning ring 320 and a workpiece to be detected are connected to form a fixing structure, so that the situation that the pressure applied to the part in different directions changes due to the fact that the part moves in the detection process is prevented.

The working principle is as follows: when the utility model is used, the utility model needs to be understood by a simple structure, firstly, the automobile parts to be detected are put into the detection box 1, the binding band 330 is wound on the positioning ring 320 to fix the automobile parts, the parts are prevented from moving in the detection process, the pressure applied in different directions is prevented from changing, enough detection liquid 140 is poured into the detection box 1, the parts are immersed into the detection liquid 140, the top cover 2 is covered, the fixing bolt 310 is screwed in the threaded hole 3 to close the top cover 2, when the detection is carried out, the push rod 120 drives the piston 130 to slide downwards along the inner wall of the hydraulic pipe 110 to pressurize the detection liquid 140, the pressure of the detection liquid 140 is detected by the probe 220 of the pressure gauge 210 in real time, if the air tightness of the parts is not good, air bubbles are rapidly generated under high pressure, whether the air bubbles are generated in the detection liquid 140 is observed through the toughened glass plate 240, thereby judging whether the air tightness of the automobile parts is good or not, the detection efficiency is improved.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an air tightness detection equipment, includes top cap (2) of detection case (1), top installation to and screw hole (3) seted up, its characterized in that: the detection box (1) comprises:

a hydraulic pipe (110) connected to the outside;

a push rod (120) is arranged on the top of the hydraulic pipe (110);

a piston (130) mounted at the bottom of the push rod (120), an

A detection liquid (140) stored in the detection box (1).

2. The airtightness detection apparatus according to claim 1, wherein: hydraulic pressure pipe (110) and detection case (1) pass through welded connection and constitute fixed knot structure, and hydraulic pressure pipe (110) and detection case (1) bottom intercommunication, push rod (120) drive piston (130) and constitute sliding construction along hydraulic pressure pipe (110) inner wall, and the rubber circle is installed in piston (130) outside.

3. The airtightness detection apparatus according to claim 1, wherein: the top cover (2) comprises:

a top mounted pressure gauge (210);

a probe (220) connected and installed below the pressure gauge (210);

a top mounted positioning frame (230);

a tempered glass plate (240) installed in the positioning frame (230);

a connecting screw (250) mounted on the positioning frame (230), and

and a sealing ring (260) is arranged at the bottom of the top cover (2).

4. A tightness detection device according to claim 3, characterized in that: the pressure gauge (210) and the top cover (2) are connected through welding to form a fixing structure, the pressure gauge (210) is connected with the probe (220), the probe (220) is inserted into the detection liquid (140), and a pressure sensing device is arranged on the probe (220).

5. A tightness detection device according to claim 3, characterized in that: the positioning frame (230) is connected with the top cover (2) through a connecting screw (250) to form a fixed structure, the toughened glass plate (240) is connected with the top cover (2) through the positioning frame (230) to form a fixed structure, and the sealing ring (260) is connected with the bottom of the top cover (2) through an annular clamping groove in a clamping mode to form a fixed structure.

6. The airtightness detection apparatus according to claim 1, wherein: the threaded hole (3) includes:

an internally mounted fixing bolt (310);

a positioning ring (320) mounted on the inner wall of the detection box (1), an

A strap (330) formed on the positioning ring (320).

7. The airtightness detection apparatus according to claim 6, wherein: fixing bolt (310) and screw hole (3) pass through threaded connection and constitute fixed knot and construct, and fixing bolt (310) symmetry installs four, detection case (1) is connected with top cap (2) through fixing bolt (310) and constitutes fixed knot and construct.

8. The airtightness detection apparatus according to claim 6, wherein: the symmetry of holding ring (320) is provided with six, and holding ring (320) and detection case (1) inner wall constitute fixed knot through welded connection and construct fixed knot, bandage (330) and holding ring (320) and required detection work piece are connected and are constituted fixed knot and construct.