Helium testing device for nozzle part

Abstract

The utility model relates to the technical field of part testing, and discloses a nozzle part helium testing device which comprises a bottom plate, a closed detection box is fixedly arranged above the bottom plate, a detection seat is detachably arranged in the middle of the side wall of the closed detection box, a helium supply mechanism is further fixedly arranged on the bottom plate, and the helium supply mechanism is communicated with the detection seat through a supply pipe. Fixing blocks for fixing spray head parts are symmetrically arranged on the upper side and the lower side of the detection seat in the closed detection box, the fixing blocks are driven by a bidirectional driving structure fixedly arranged on the inner side wall of the closed detection box, a helium leakage monitor is fixedly arranged on the inner side wall of the closed detection box, and a transparent observation window is arranged on the side wall of the closed detection box. The utility model has the advantages that different types of parts can be effectively fixed, the detection precision is ensured, the protection capability is good, and the observation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of part testing, and particularly relates to a nozzle part helium test device. BACKGROUND

[0002] Nozzle parts are key components of a nozzle device. They usually have specific shapes and structures, such as small orifices, connecting channels, and various sealing components. Nozzle parts are made of various materials, such as stainless steel to ensure their durability and corrosion resistance, and plastic, such as engineering plastic, to meet specific lightweight or cost control requirements.

[0003] In the process of nozzle part delivery, helium leak detection is a crucial step. The detection equipment currently used is connected to the detection head with the help of a helium supply device, and then the nozzle part is connected to it for air tightness detection. However, this detection method has certain limitations. It cannot effectively fix different types of nozzle parts during detection, and is only suitable for specific shapes and sizes of parts. Unstable fixation can affect detection accuracy. At the same time, the detection equipment lacks necessary safety protection equipment, which not only threatens the safety of the detection personnel, but also is not conducive to the long-term stable development of the detection work. SUMMARY

[0004] The utility model discloses a nozzle part helium test device that can effectively fix different types of parts, ensure detection accuracy, has good protection ability, and is easy to observe.

[0005] To solve the above technical problems, the utility model provides a technical scheme: a nozzle part helium test device, comprising a bottom plate, a closed detection box is fixedly arranged above the bottom plate, a detection seat is detachably arranged in the middle of the side wall of the closed detection box, a helium supply mechanism is also fixedly arranged on the bottom plate, the helium supply mechanism is communicated with the detection seat through a supply pipe, fixed blocks for fixing nozzle parts are symmetrically arranged on the upper and lower sides of the detection seat in the closed detection box, the fixed blocks are driven by a bidirectional driving structure fixedly arranged on the inner side wall of the closed detection box, a helium leak monitor is fixedly arranged on the inner side wall of the closed detection box, and a transparent observation window is arranged on the side wall of the closed detection box.

[0006] Further, a sealing cover is hingedly arranged on one side of the closed detection box, the sealing cover and the closed detection box are connected and fixed through a fixed lock buckle, and a sealing gasket is arranged at the inner edge of the sealing cover.

[0007] Further, the detection seat comprises a mounting plate and a detection connector fixedly arranged in the middle of the mounting plate, the mounting plate is fixedly connected with the side wall of the closed detection box through screws at four corners, one end of the detection connector is connected with the supply pipe in a sealed manner and the other end is arranged in the closed detection box and can be connected with the spray head part in a sealed manner, and a plurality of rubber sealing rings are arranged on the inner side of the connection end of the detection connector and the spray head part.

[0008] Further, the helium supply mechanism comprises a helium storage tank and a gas pump fixedly arranged on the bottom plate, and the gas inlet and outlet of the gas pump are communicated with the helium storage tank and the supply pipe respectively.

[0009] Further, the bidirectional driving structure comprises a moving plate slidingly arranged in the inner side of the closed detection box, the moving plate is driven by an electric push rod one fixedly arranged on the inner side wall of the closed detection box, symmetrically arranged sliding strips are arranged on the moving plate close to the two ends, sliding grooves matched with the sliding strips are arranged on the inner side wall of the closed detection box, an electric push rod two perpendicular to the electric push rod one is fixedly arranged on the moving plate, and the fixed block is fixedly arranged on the end portion of the electric push rod two.

[0010] Further, the bottom plate is provided with a control panel for controlling the gas pump, the electric push rod one, the electric push rod two and the helium leakage monitor.

[0011] Compared with the prior art, the device is provided with a bidirectional driving structure in the closed detection box, the up-down and left-right positions of the fixed block can be flexibly adjusted, the spray head part is clamped and fixed by the fixed block and the detection seat, different sizes and shapes of the spray head part can be adapted, the spray head part can be stably fixed on the detection seat, the part can not shake and displace during helium testing, the detection connector and the part can always be kept in good sealing connection, the helium can be stably supplied, the accuracy of the detection data is ensured, and the detection precision is effectively ensured.

[0012] The spray head part is detected in the closed detection box, helium leakage into the environment can be effectively prevented, the safety of the test environment is ensured, the closed detection box forms a relatively independent space, external factors can be avoided to interfere with the test during the detection process, and the protection capability is excellent. The side wall of the closed detection box is provided with a transparent observation window, when the spray head part is tested, the operator can observe the test condition of the internal part in real time through the observation window without opening the closed detection box, the test dynamic can be timely mastered, and the whole test process can be conveniently and quickly carried out. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a perspective view of the utility model;

[0014] Figure 2 is a front view of the utility model;

[0015] Figure 3is the side view of the utility model;

[0016] Figure 4 is the plan view of the utility model;

[0017] Figure 5 is the enlarged view of part A of the utility model.

[0018] As shown in the figure: 1, the base plate; 2, closed detection box; 3, supply pipe; 4, fixed block; 5, helium leakage monitor; 6, transparent observation window; 7, sealing cover; 8, mounting plate; 9, detection joint; 10, rubber sealing ring; 11, helium storage tank; 12, air pump; 13, moving plate; 14, electric push rod one; 15, sliding groove; 16, electric push rod two; 17, control panel. DETAILED DESCRIPTION

[0019] The utility model will be further explained in detail in connection with the drawings.

[0020] In connection with the drawings Figure 1 , the drawings Figure 4 , a spray head parts helium test device, including base plate 1, the base plate 1 top is fixedly provided with closed detection box 2, one side of closed detection box 2 is hingedly provided with sealing cover 7, sealing cover 7 and closed detection box 2 are connected by fixed lock catch and are fixed, the inner side edge of sealing cover 7 is provided with sealing washer, sealing cover 7 is connected with closed detection box 2 by fixed lock catch and the inner side edge has sealing washer, can be conveniently opened to operate the placement and removal of spray head parts, and the good sealing property of closed detection box 2 can be guaranteed, which is beneficial to test accurately.

[0021] In connection with the drawings Figure 2 , the drawings Figure 4 , the middle part of the side wall of closed detection box 2 is detachably provided with detection seat, helium supply mechanism is also fixedly provided on the base plate 1, the helium supply mechanism includes helium storage tank 11 and air pump 12 fixed on the base plate 1, the air inlet and air outlet of air pump 12 are communicated with helium storage tank 11 and supply pipe 3 respectively, can stably provide helium source for test, realizes the delivery of helium by air pump 12, satisfies the gas supply demand of spray head parts helium test.

[0022] In connection with the drawings Figure 2 , the drawings Figure 3 , the drawings Figure 5The helium supply mechanism is communicated with the detection seat through a supply pipe 3. The detection seat comprises a mounting plate 8 and a detection connector 9 fixedly arranged at the middle part of the mounting plate 8. The mounting plate 8 is fixedly connected with the side wall of the closed detection box 2 through screws at the four corners. One end of the detection connector 9 extends out of the closed detection box 2 and is sealingly connected with the supply pipe 3. The other end of the detection connector 9 is arranged in the closed detection box 2 and can be sealingly connected with the nozzle part. A plurality of rubber sealing rings 10 are arranged in the inner side of the connection end of the detection connector 9. The detection seat is fixedly arranged with the mounting plate 8 through screws. Different specifications of detection seats can be conveniently disassembled and replaced to adapt to the fixing requirements of nozzle parts of different types and specifications. The rubber sealing rings 10 arranged on the detection connector 9 can enhance the sealing performance of the connection with the nozzle part, ensure that the helium does not leak from the connector during the test, and guarantee the test effect.

[0023] The accompanying drawings are combined with the Figure 1 The accompanying drawings are combined with the Figure 3 A fixing block 4 for fixing the nozzle part is symmetrically arranged on the upper and lower sides of the detection seat in the closed detection box 2. The fixing block 4 is driven by a bidirectional driving structure fixedly arranged on the inner side wall of the closed detection box 2. The bidirectional driving structure comprises a moving plate 13 slidingly arranged in the inner side of the closed detection box 2. The moving plate 13 is driven by an electric push rod 14 fixedly arranged on the inner side wall of the closed detection box 2. The moving plate 13 is symmetrically provided with sliding strips near the two ends. A sliding groove 15 matched with the sliding strips is arranged on the inner side wall of the closed detection box 2. An electric push rod 16 perpendicular to the electric push rod 14 is fixedly arranged on the moving plate 13. The fixing block 4 is fixedly arranged at the end of the electric push rod 16. The electric push rod 14 drives the moving plate 13, and the electric push rod 16 drives the fixing block 4. The sliding structure of the sliding groove 15 and the sliding strip can accurately and flexibly control the movement of the fixing block 4, realize stable and reliable pressing and fixing of the nozzle part, and is suitable for nozzle parts of different structures.

[0024] The accompanying drawings are combined with the Figure 1 A helium leakage monitor 5 is fixedly arranged on the inner side wall of the closed detection box 2. A transparent observation window 6 is arranged on the side wall of the closed detection box 2. A control panel 17 for controlling the air pump 12, the electric push rod 14, the electric push rod 16 and the helium leakage monitor 5 is arranged on the bottom plate 1. The control panel 17 can conveniently control the key components such as the air pump 12, the electric push rod and the helium leakage monitor 5, is convenient to operate, and is beneficial to improving the overall efficiency and accuracy of the helium test of the nozzle part.

[0025] The utility model discloses a specific implementation manner: first, open fixed lock catch, open the sealing cover 7, according to the size of the spray head spare of detection, select the detection seat of appropriate specification and use screw installation in the closed detection box 2, and the detection joint 9 one end of sealed butt joint of supply pipe 3 of closed detection box 2 is stretched out. The spray head spare that needs to test is sealed and connected on the detection joint 9 on the detection seat, and the rubber sealing ring 10 in its inside can guarantee the connection sealing property, then close the sealing cover 7, and use fixed lock catch fixed, at this time, the sealing washer can guarantee the sealing property of the joint of sealing cover 7 and closed detection box 2.

[0026] Then, the electric push rod one 14 in bidirectional drive structure is started by using control panel 17, and the electric push rod one 14 drives the sliding plate 13 to slide along the sliding groove 15 of the inner wall of the closed detection box 2, so that the two fixed blocks 4 are close to the spray head spare, and then the electric push rod two 16 is started, the electric push rod two 16 drives the fixed block 4 to move, so that the fixed block 4 is close to the spray head spare from the side of the spray head spare away from the detection seat, until the spray head spare is contacted and pressed, and the two fixed blocks 4 press and fix the spray head spare from the upper and lower sides, so that the spray head spare is stable on the detection seat.

[0027] Then, the gas pump 12 of the helium gas supply mechanism is started by using the control panel 17, the gas pump 12 transports the helium in the helium storage tank 11 to the detection joint 9 through the supply pipe 3, and provides the helium for the spray head spare to test. In the testing process, the operator can observe the internal part test condition in real time through the transparent observation window 6 of the side wall of the closed detection box 2. At the same time, the helium leakage monitor 5 on the inner wall of the closed detection box 2 can monitor whether the helium leaks in real time, after the whole test is finished, the gas pump 12 and other related equipment are closed, the sealing cover 7 is opened, and the spray head spare can be taken out.

[0028] In the description of the utility model, it is necessary to explain that, unless there is definite provision and limitation, the term "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, for ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific circumstances.

[0029] The utility model and its implementation manner are described above, and this description is not restrictive, and the embodiment shown in the drawings is only one of the utility model, and the actual structure is not limited to this. In short, if ordinary skilled in the art is inspired, without departing from the utility model creation tenet, the structure mode and embodiment similar to the technical scheme are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A helium testing device for nozzle parts, comprising a base plate (1), characterized in that: A closed detection box (2) is fixedly installed above the base plate (1). A detection seat is detachably installed in the middle of the side wall of the closed detection box (2). A helium supply mechanism is also fixedly installed on the base plate (1). The helium supply mechanism is connected to the detection seat through a supply pipe (3). Fixing blocks (4) for fixing nozzle parts are symmetrically arranged on the upper and lower sides of the detection seat inside the closed detection box (2). The fixing blocks (4) are driven by a bidirectional drive structure fixed on the inner side wall of the closed detection box (2). A helium leak detector (5) is fixedly installed on the inner side wall of the closed detection box (2). A transparent observation window (6) is provided on the side wall of the closed detection box (2).

2. The helium testing device for nozzle parts according to claim 1, characterized in that: The sealed test box (2) is hinged to one side with a sealing cover (7), and the sealing cover (7) is fixed to the sealed test box (2) by a fixing buckle. A sealing gasket is provided on the inner edge of the sealing cover (7).

3. The helium testing device for nozzle parts according to claim 1, characterized in that: The detection seat includes a mounting plate (8) and a detection connector (9) fixed in the middle of the mounting plate (8). The four corners of the mounting plate (8) are fixedly connected to the side wall of the closed detection box (2) by screws. One end of the detection connector (9) extends out of the closed detection box (2) and is sealed to the supply pipe (3). The other end is located inside the closed detection box (2) and can be sealed to the nozzle parts. Several rubber sealing rings (10) are provided on the inner side of the connection end between the detection connector (9) and the nozzle parts.

4. The helium testing device for nozzle parts according to claim 1, characterized in that: The helium supply mechanism includes a helium storage tank (11) and a gas pump (12) fixed on the base plate (1). The gas pump (12) has an inlet and an outlet connected to the helium storage tank (11) and the supply pipe (3), respectively.

5. The helium testing device for nozzle parts according to claim 4, characterized in that: The bidirectional drive structure includes a movable plate (13) slidably disposed inside the closed testing box (2). The movable plate (13) is driven by an electric push rod (14) fixedly disposed on the inner wall of the closed testing box (2). The movable plate (13) is symmetrically provided with slide bars near both ends. The inner wall of the closed testing box (2) is provided with a slide groove (15) that matches the slide bar. An electric push rod (16) perpendicular to the electric push rod (14) is fixedly disposed on the movable plate (13). The fixing block (4) is fixedly disposed at the end of the electric push rod (16).

6. The helium testing device for nozzle parts according to claim 5, characterized in that: The base plate (1) is equipped with a control panel (17) for the control air pump (12), electric push rod one (14), electric push rod two (16) and helium leak detector (5).

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