CN111649922A - A nozzle detection device - Google Patents

Abstract

The invention relates to the technical field of nozzle processing, in particular to a nozzle detection device, comprising a base with a liquid through hole, and the liquid through hole is connected with a pressure detection gauge and a safety valve; wherein the liquid through hole includes a liquid inlet end and the liquid outlet end; the nozzle fixing mechanism is arranged in the liquid outlet direction of the liquid through hole. The base of the present invention is provided with a liquid through hole. By connecting the liquid supply equipment and the measured nozzle to the two ends of the liquid through hole respectively, the pressurized liquid is provided by the liquid supply equipment to flow through the liquid through hole into the nozzle and sprayed out. During the test, the liquid pressure of the liquid through hole is monitored in real time through the pressure detection meter to determine whether the nozzle is blocked and the liquid pressure in the liquid through hole increases. Prevent overload damage of liquid supply equipment due to blockage of nozzles or poor structure.

Description

A nozzle detection device

technical field

The invention relates to the technical field of nozzle processing, in particular to a nozzle detection device.

Background technique

In the prior art, in the field of precision manufacturing and processing of nozzles, nozzles with extremely small apertures are installed at the spray terminals of the nozzles. Due to the high precision of the nozzles, if the nozzles are caused by poor pipeline structure, foreign objects or other reasons due to processing problems If it is blocked and put into use directly, it will cause damage to the internal pressure of the pipeline due to the blockage, and it is easy to cause overloading of the liquid supply equipment in the working state of rotation speed, resulting in abnormal wear and tear, resulting in equipment failure. Therefore, it is necessary to spray the production equipment. Check whether the tube is qualified or not, filling the gap in the field of nozzle testing.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a nozzle detection device for detecting whether the nozzle is blocked due to poor structure, foreign matter or other reasons.

In order to achieve the above purpose, the present invention provides a nozzle detection device, comprising:

The base is provided with a liquid through hole, and the liquid through hole is connected with a pressure detection gauge for detecting the pressure of the liquid through hole and a safety valve for preventing the overload of the liquid supply equipment;

Wherein, the liquid through hole includes a liquid inlet end for connecting with the liquid inlet device and a liquid outlet end for connecting with the measured nozzle;

The nozzle fixing mechanism, which is arranged in the liquid outflow direction of the liquid through hole, is used for reliably connecting the measured nozzle and the liquid through hole.

Optionally, the base is provided with a first connection hole and a second connection hole coaxially arranged with the liquid through hole, and the first connection hole is arranged at the liquid inlet end for the sealing sleeve to be connected to the liquid inlet. For the liquid inlet pipe of the equipment, the second connection hole is provided at the liquid outlet end for sealingly sleeved with the liquid inlet pipe of the tested nozzle.

Optionally, the first connection hole is sleeved with a liquid inlet joint, the outer side of the liquid inlet joint is provided with an annular boss, the base is provided with a positioning groove, and the positioning groove is slidably inserted with a stopper, so The stopper is provided with a first U-shaped groove, and one end face of the first U-shaped groove interferes with the annular boss to limit the axial movement of the liquid inlet joint.

Optionally, the nozzle fixing mechanism includes:

locking block;

The rotary pressing block is rotatably connected with the locking block, and the rotary pressing block is provided with a second U-shaped groove for restricting the axial movement of the nozzle pipe under test that communicates with the liquid through hole.

Optionally, the nozzle fixing mechanism further includes a locking rod, the locking block is provided with at least one locking hole, and the locking rod passes through the locking hole and is connected to the rotary pressing block.

Optionally, the rotary pressing block is provided with a positioning hole for being sleeved with the locking rod.

Optionally, the rotary pressing block is provided with a slot for engaging with the locking rod.

Optionally, one end of the locking hole is provided with a locking groove arranged along the radial direction of the locking hole, and the locking rod is provided with a guide rod for embedding in the locking groove.

Optionally, a first limiting portion is protruded on the outer side surface of the locking rod, a second limiting portion is protruded on the inner side wall of the locking hole, and the first limiting portion and the second limiting portion are formed. A spring is arranged therebetween and is sleeved on the locking rod.

Optionally, the locking rod is provided with a limit hole arranged in the axial direction of the locking rod, a positioning pin hole whose axis is perpendicular to the axis of the locking hole is opened in the locking hole, and a positioning pin hole is inserted in the positioning pin hole. A positioning pin, one end of the positioning pin is arranged in the limiting hole.

Optionally, the rotary pressing block includes a nozzle pressing plate and a positioning pressing plate, at least one end of the nozzle pressing plate is connected with the positioning pressing plate, and the locking rod is connected with the positioning pressing plate.

Optionally, also include:

a base plate, the locking block is detachably installed on the base plate, and the base is detachably installed on the locking block;

The supporting feet are installed under the base plate to support the base plate.

Optionally, it also includes a pad for supporting the nozzle to be tested, the pad is provided with a positioning groove for placing the nozzle to be tested.

Implementing the embodiments of the present invention has the following technical effects:

The invention realizes the qualified test of the nozzle when it leaves the factory, prevents the overload damage of the liquid supply equipment caused by the blockage of the nozzle or the poor structure of the nozzle, reduces the abnormal wear and mechanical failure of the liquid supply equipment, and improves the safety and reliability of use. The base of the present invention is provided with a liquid through hole, and by connecting the liquid supply equipment and the measured nozzle to the two ends of the liquid through hole, the liquid supply equipment provides pressurized liquid to flow through the liquid through hole into the nozzle and spray out. , During the test, the liquid pressure of the liquid through hole is monitored in real time through the pressure detection meter, and it is judged whether the nozzle is blocked, which leads to the increase of the liquid pressure in the liquid through hole, and when the pressure in the liquid through hole is too large, the safety valve is used to achieve overload Protection against overload damage to liquid supply equipment due to nozzle blockage or poor structure.

Description of drawings

Fig. 1 is the structural representation that the preferred embodiment of the present invention is connected with the nozzle under test;

Fig. 2 is the top view of the preferred embodiment of the present invention;

Fig. 3 is the sectional view at AA in Fig. 2;

Fig. 4 is the partial enlarged view of A place in Fig. 3;

Fig. 5 is the sectional view at BB in Fig. 2;

6 is an exploded view of the preferred embodiment of the present invention;

Figure 7 is an exploded view from another perspective of the preferred embodiment of the present invention.

Description of reference numbers:

1. Base, 11, liquid through hole, 12, first connection hole, 13, second connection hole, 14, liquid inlet connector, 141, annular boss, 142, sealing ring, 15, positioning groove, 16, stopper block, 161, the first U-shaped groove;

2. Pressure detection gauge connector;

3. Safety valve;

4. Nozzle fixing mechanism, 41, locking block, 411, locking hole, 412, locking groove, 413, second limit part, 414, positioning pin hole, 42, rotary pressure block, 421, positioning hole, 422, card slot, 423, nozzle pressure plate, 424, positioning pressure plate, 425, second U-shaped groove, 43, locking rod, 431, first limit part, 432, limit hole, 44, guide rod, 45, Spring, 46, spherical handle;

5. Substrate;

6. Support feet;

7. Pad, 71. Positioning groove;

8. Rubber feet;

9. The nozzle being tested.

Detailed ways

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the orientations or positional relationships shown in the accompanying drawings, only for the purpose of It is convenient to describe the present invention and to simplify the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first", "second", etc. are used in the present invention to describe various kinds of information, but the information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

Referring to FIGS. 1-7 , this embodiment provides a nozzle detection device, including:

The base 1 is provided with a liquid through hole 11, and the liquid through hole 11 is connected with a pressure detection gauge (not shown in the figure) for detecting the pressure of the liquid through hole 11 and a safety valve 3 for preventing the overload of the liquid supply equipment. Yes, the pressure detection gauge in this embodiment communicates with the liquid through hole 11 through the pressure detection gauge connector 2;

Wherein, the liquid through hole 11 includes a liquid inlet end for connecting with the liquid inlet device and a liquid outlet end for connecting with the measured nozzle 9;

The nozzle fixing mechanism 4 is arranged at the liquid outlet end for reliably connecting the measured nozzle 9 with the liquid through hole 11 .

The invention realizes the qualified test of the nozzle when it leaves the factory, prevents the overload damage of the liquid supply equipment caused by the blockage of the nozzle or the poor structure of the nozzle, reduces the abnormal wear and mechanical failure of the liquid supply equipment, and improves the safety and reliability of use. The base 1 of the present invention has a liquid through hole 11, and by connecting the liquid supply device and the measured nozzle 9 to the two ends of the liquid through hole 11 respectively, the liquid supply device provides pressurized liquid to flow through the liquid through hole 11. It enters the nozzle and sprays out. During the test, the liquid pressure of the liquid through hole 11 is monitored in real time through the pressure detection meter to determine whether the nozzle is blocked and the liquid pressure in the liquid through hole 11 increases, and the pressure in the liquid through hole 11 increases. When it is too large, the overload protection is realized by the safety valve 3 to prevent the overload damage of the liquid supply equipment caused by the blockage of the nozzle or the poor structure.

Referring to FIG. 1, FIG. 6 and FIG. 7, in order to facilitate the detection of nozzle products of different specifications, the base 1 of this embodiment can be detachably installed on the locking block 41, which is convenient for disassembly and assembly on the support seat. The liquid through hole 11 and the mounting seat of the positioning groove 15 can be assembled flexibly to adapt to different specifications of nozzle products for testing, and the cost of testing can be reduced.

Referring to FIG. 4 , further, in order to improve the reliability of the liquid through hole 11 connecting the liquid supply device and the measured nozzle 9 , the mounting seat is provided with a first connection hole 12 and a second connection hole coaxially arranged with the liquid through hole 11 13. The first connection hole 12 is provided at the liquid inlet end for sealingly sleeved with the liquid inlet pipe of the liquid inlet equipment, and the second connection hole 13 is provided at the liquid outlet end for sealingly sleeved with the liquid inlet pipe of the nozzle 9 to be tested.

Among them, the first connection hole 12 is sleeved with a liquid inlet connector 14, which is convenient for the connection of the liquid supply equipment. The outer side of the liquid inlet connector 14 is provided with an annular boss 141, the mounting seat is provided with a positioning groove 15, and the positioning groove 15 is slidingly inserted with a stop The block 16, the stopper 16 is provided with a first U-shaped groove 161, and one end face of the first U-shaped groove 161 forms interference with the annular boss 141 to limit the axial movement of the liquid inlet joint 14 and improve the liquid inlet joint 14. As for the set tightness, it can be understood that the liquid inlet joint 14 can be disassembled and assembled through the sliding block 16, so that the liquid inlet joint 14 of different specifications can be selected to adapt to the liquid outlet end of the liquid supply equipment.

In order to further improve the sealing effect between the liquid inlet joint 14 and the first connection hole 12, and prevent the detection accuracy caused by leakage, the liquid inlet joint 14 is provided with an annular groove, and the annular groove is sleeved with a sealing ring 142. The radial end face protrudes from the open end of the annular groove.

Referring to FIG. 1 , FIG. 6 and FIG. 7 , further, the nozzle fixing mechanism 4 of this embodiment includes:

The locking block 41 and the rotary pressing block 42 rotatably connected with the locking block 41 are provided with a second U-shaped groove 425 for restricting the axial movement of the measured nozzle 9 communicating with the liquid through hole 11. The joint of the nozzle is snapped into the second U-shaped groove 425. It can be understood that the width of the second U-shaped groove 425 is set to be smaller than the diameter of the nozzle joint and larger than the diameter of the thin nozzle of the nozzle, thereby restricting the measurement of the nozzle. Axial movement.

The nozzle fixing mechanism 4 of this embodiment further includes a locking rod 43 , the locking block 41 is provided with at least one locking hole 411 , and the locking rod 43 penetrates through the locking hole 411 and is connected to the rotary pressing block 42 . The rotary pressing block 42 includes a nozzle pressing plate 423 and a positioning pressing plate 424. Both sides of the nozzle pressing plate 423 are connected with the positioning pressing plates 424. Therefore, this embodiment includes two locking holes 411, which are respectively inserted into the two locking holes 411. There is a locking rod 43, and the two sets of positioning pressure plates 424 connected to both sides of the nozzle pressure plate 423 are respectively provided with positioning holes 421 for sleeve connection with the locking rod 43 and a card slot 422 for clamping with the locking rod 43, so as to increase the rotational pressure. The block 42 locks the stability of the nozzle 9 under test;

Referring to FIGS. 3 and 4 , a first limiting portion 431 is formed on the outer side of the locking rod 43 inserted in a locking hole 411, and a second limiting portion 413 is formed on the inner side wall of the locking hole 411. A spring 45 is arranged between the first limiting portion 431 and the second limiting portion 413 and is sleeved on the lock rod 43, so that when the lock rod 43 is moved in the axial direction, it can be automatically reset under the action of the spring 45. In addition, One end of the locking hole 411 is provided with a locking groove 412 arranged along the radial direction of the locking hole 411, and the locking rod 43 is provided with a guide rod 44 for embedding the locking groove 412. When the locking rod 43 is moved a certain distance Rotate the locking rod 43 to make the guide rod 44 abut against the end face of the locking groove 412 to prevent the locking rod 43 from resetting. and the locking of the nozzle 9 under test;

Referring to FIGS. 5-7 , further, the locking rod 43 inserted in the other locking hole 411 is provided with a limiting hole 432 arranged along the axial direction of the locking rod 43 , and the locking hole 411 is provided with an axis and a locking hole. 411 The axis of the locating pin hole 414 is vertical, the locating pin hole 414 is inserted with a locating pin, and one end of the locating pin is set in the limit hole 432, so that when the lock rod 43 is moved, the movement range of the lock rod 43 is limited, which is convenient for Accurately operate the distance that the lock lever 43 moves, move the lock lever 43 to the position where the positioning pressure plate 424 is locked and engage with the card slot 422 to achieve locking and fixing of the rotating pressure block 42 and the nozzle 9 under test.

Specifically, one end of the locking rod 43 in this embodiment is provided with a spherical handle 46, which is convenient for hand-held operation.

Among them, in order to facilitate the stable placement and overall movement of the nozzle detection device, this embodiment also includes:

The base plate 5, the locking block 41 is detachably mounted on the base plate 5;

The supporting feet 6 are installed under the base plate 5 to support the base plate 5 .

Further, the lower end of the support foot 6 is provided with a rubber foot 8, which plays the role of anti-slip and anti-vibration.

Among them, in order to ensure the stability of the tested nozzle 9 during the detection process, this embodiment also includes a pad 7 for supporting the tested nozzle 9, and the pad 7 is provided with a positioning recess for placing the tested nozzle 9 The groove 71 prevents the nozzle from being bent under the action of its own weight and affects the detection result, thereby improving the detection accuracy.

The operation steps of the present invention are:

Pull out one of the locking rods 43 and rotate to stay on the side of the locking block 41 to prevent returning, pull open the other locking rod 43, and rotate the rotary pressing block 42;

Connect the liquid supply equipment to the liquid inlet connector 14 of the first connection hole 12, insert the tail of the nozzle 9 to be tested into the second connection hole 13, and turn the rotary pressing block 42 to make the tail of the nozzle 9 to be tested snap into the second connection hole 13. In the two U-shaped grooves 425 , during the rotation of the rotary pressing block 42 , the tail of the nozzle 9 to be tested is gradually compressed toward the direction of the second connecting hole 13 , and is restricted by the side end surface of the second U-shaped groove 425 to be tested. Measuring the axial movement of the nozzle 9;

Reset the two locking rods 43 so that the two locking rods 43 pass through the setting holes 421 and are inserted into the card slots 422 respectively, so as to realize the locking of the rotary pressing block 42;

Start the liquid supply equipment, and test the structure and function of the nozzle 9 to be tested in a number of different gears;

Among them, the liquid supply device pumps sterile liquid, such as sterile physiological saline, to the nozzle 9 to be tested, and then flows into the through hole of the liquid 11 and the nozzle 9 to be tested in turn after being injected from the liquid inlet 14 under high pressure conditions. Detect the pressure value of the pressure detection table and the pressure value of the nozzle qualified product under this test condition, so as to judge whether the tested nozzle 9 is qualified.

The invention realizes the qualified test of the nozzle when it leaves the factory, prevents the overload damage of the liquid supply equipment caused by the blockage of the nozzle or the poor structure of the nozzle, reduces the abnormal wear and mechanical failure of the liquid supply equipment, and improves the safety and reliability of use. The base 1 of the present invention has a liquid through hole 11, and by connecting the liquid supply device and the measured nozzle 9 to the two ends of the liquid through hole 11 respectively, the liquid supply device provides pressurized liquid to flow through the liquid through hole 11. It enters the nozzle and sprays out. During the test, the liquid pressure of the liquid through hole 11 is monitored in real time through the pressure detection meter to determine whether the nozzle is blocked and the liquid pressure in the liquid through hole 11 increases, and the pressure in the liquid through hole 11 increases. When it is too large, the overload protection is realized by the safety valve 3 to prevent the overload damage of the liquid supply equipment caused by the blockage of the nozzle or the poor structure.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made. These improvements and replacements It should also be regarded as the protection scope of the present invention.

Claims (13)

1. A spout detecting device, comprising:

the liquid supply device comprises a base, a liquid inlet, a liquid outlet and a liquid outlet, wherein the base is provided with a liquid through hole, and the liquid through hole is connected with a pressure detection meter for detecting the pressure of the liquid through hole and a safety valve for preventing the liquid supply device from being overloaded;

the liquid through hole comprises a liquid inlet end and a liquid outlet end, wherein the liquid inlet end is connected with liquid inlet equipment, and the liquid outlet end is connected with the tested spray pipe;

and the spray pipe fixing mechanism is arranged in the liquid outlet direction of the liquid through hole and is used for reliably communicating the tested spray pipe with the liquid through hole.

2. The apparatus according to claim 1, wherein the base defines a first connection hole and a second connection hole coaxial with the liquid through hole, the first connection hole is disposed at the liquid inlet end for sealingly engaging with a liquid inlet pipe of a liquid inlet device, and the second connection hole is disposed at the liquid outlet end for sealingly engaging with a liquid inlet pipe of the measured nozzle.

3. The apparatus according to claim 2, wherein the first connection hole is sleeved with a liquid inlet joint, an annular boss is disposed outside the liquid inlet joint, the base is provided with a positioning groove, a stopper is slidably inserted into the positioning groove, the stopper is provided with a first U-shaped groove, and a side end surface of the first U-shaped groove interferes with the annular boss to limit axial movement of the liquid inlet joint.

4. The lance detection apparatus of claim 1, wherein the lance securing mechanism comprises:

a locking block;

and the rotary pressing block is rotatably connected with the locking block and is provided with a second U-shaped groove which is used for limiting and communicating the liquid through hole and used for axial movement of the tested spray pipe.

5. The device for detecting the spraying pipe, according to claim 4, is characterized in that the spraying pipe fixing mechanism further comprises a locking rod, the locking block is provided with at least one locking hole, and the locking rod is arranged in the locking hole in a penetrating manner and connected with the rotating pressing block.

6. The nozzle detecting device of claim 5, wherein the rotating pressing block is provided with a positioning hole for being sleeved with the lock rod.

7. The spray pipe detection device of claim 5, wherein the rotary pressing block is provided with a clamping groove for clamping with the lock rod.

8. The nozzle detecting device according to any one of claims 5 to 7, wherein one end of the locking hole is provided with a locking groove arranged along a radial direction of the locking hole, and the lock lever is provided with a guide rod for being embedded in the locking groove.

9. The nozzle detecting device of claim 8, wherein a first limiting portion is formed on an outer side surface of the lock rod in a protruding manner, a second limiting portion is formed on an inner side wall of the lock hole in a protruding manner, and a spring is arranged between the first limiting portion and the second limiting portion and sleeved on the lock rod.

10. The spray pipe detection device according to any one of claims 5 to 7, wherein the lock rod is provided with a limiting hole arranged along the axial direction of the lock rod, the lock hole is provided with a positioning pin hole with an axis perpendicular to the axis of the lock hole, a positioning bolt is inserted into the positioning pin hole, and one end of the positioning bolt is arranged in the limiting hole.

11. The spray tube detection device of claim 5, wherein the rotary pressing block comprises a spray tube pressing plate and a positioning pressing plate, at least one side end of the spray tube pressing plate is connected with the positioning pressing plate, and the locking rod is connected with the positioning pressing plate.

12. The lance detection apparatus of claim 1, further comprising:

the locking block is detachably arranged on the base plate, and the base is detachably arranged on the locking block;

the supporting legs are arranged below the substrate and used for supporting the substrate.

13. The nozzle detection device of claim 1, further comprising a pad for supporting the nozzle to be detected, wherein the pad is provided with a positioning groove for placing the nozzle to be detected.

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