Performance testing device for industrial plastic injection molding part

Abstract

The invention provides an industrial plastic injection molding part performance testing device, and relates to the technical field of injection molding part sealing testing, the industrial plastic injection molding part performance testing device comprises a detection sleeving part, a sealing part is installed on the detection sleeving part, and an expansion supply part is installed on the sealing part; the expansion supply piece is used for controlling the sealing piece to expand and hermetically fit the injection molding piece; a handheld mounting piece is mounted on the detection sleeving piece; the handheld mounting piece is used for being held by hand; a leakage point length checking piece is mounted on the handheld mounting piece; the detection of the length range of the leakage point is facilitated, the device is more practical, and the subsequent targeted maintenance by workers is facilitated, so that the problems that the existing injection molding part performance testing device is inconvenient to detect the length of the leakage point and is inconvenient for the subsequent workers to accurately adjust and polish the flange end surface are solved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molded part sealing test, in particular to an industrial plastic injection molded part performance test device. Background Art

[0002] Injection molded parts are plastic products of various shapes made of thermoplastics or thermosetting materials using plastic molding molds. In actual injection molding work, injection molding of plastic flanges is often involved. Plastic flanges are widely used in containers such as plastic liquid storage tanks. The injection molding accuracy of plastic flanges is directly related to the sealing performance. At present, the two flanges are usually connected and immersed in a pool for testing. Thanks to this method, it is simple and intuitive and is widely used. The current injection molding performance test device is not convenient for detecting the length of the leak point, and it is not convenient for subsequent staff to accurately adjust and polish the flange end face. At the same time, the immersion method requires a larger pool, which is time-consuming and labor-intensive, has poor flexibility, and is not convenient for handheld detection. At the same time, once the flange leaks, during the immersion and negative pressure suction tests, the thinner plastic tank body is easily damaged by negative pressure suction and dents, which increases the detection error rate. The traditional method of relying solely on observing bubbles is also prone to omissions. Summary of the invention

[0003] The disclosed embodiment relates to an industrial plastic injection molded part performance testing device, wherein a leak point length inspection component is convenient for inspecting the leak point length range, is more practical, and is convenient for subsequent staff to carry out targeted repairs, so as to solve the problem that the current injection molded part performance testing device is not convenient for detecting the leak point length, and is not convenient for subsequent staff to accurately adjust and polish the flange end face.

[0004] In a first aspect of the present disclosure, there is provided an industrial plastic injection molded part performance testing device, comprising a detection sleeve, a sealing part is installed on the sealing part, and an expansion supply part is installed on the sealing part; the expansion supply part is used to control the expansion of the sealing part to seal and fit the injection molded part; a hand-held mounting part is installed on the detection sleeve; the hand-held mounting part is used to be held by hand; a leak point length inspection part is installed on the hand-held mounting part; the leak point length inspection part is used to detect the leakage length of the plastic part; a suction compensating part is installed on the hand-held mounting part; the suction compensating part is used to compensate for negative pressure; a leakage detection part is installed on the suction compensating part; the detection sleeve comprises: a detection mounting ring and a threaded connecting pipe, the detection mounting ring is fixedly mounted with a threaded connecting pipe; the detection mounting ring is a transparent plastic structure.

[0005] In at least some embodiments, the suction compensation component includes: a threaded butt tube, a suction pump, a suction pipe and a bypass pipe, the threaded butt tube is threadedly connected to the water inlet pipe; a suction pump is installed on the threaded butt tube; a suction pipe is connected to the upper pipe of the suction pump; a bypass pipe is connected to the side pipe of the suction pipe; and the suction pump is used to suck the joints of injection molded parts.

[0006] In at least some embodiments, the leak point length inspection part also includes: a closing belt and a connecting column, wherein the end of the closing belt is fixedly mounted on the detection control wheel; a closing belt is rolled up on the detection control wheel, and a connecting column is fixedly mounted on the other end of the closing belt; two pulling rubber belts are fixedly mounted on both ends of the connecting column; the closing belt is a rubber elastic structure; a groove is provided on the outer side of the closing belt; the groove on the outer side of the closing belt is slidably mounted on a sliding protrusion ring; the winding direction of the closing belt and the pulling rubber belt on the detection control wheel are opposite.

[0007] In at least some embodiments, the detection sleeve further includes: a sliding protrusion ring, a threaded connection tube is fixedly installed on the inner side of the detection mounting ring, and the threaded connection tube is a transparent plastic structure.

[0008] In at least some embodiments, the handheld mounting component includes: a handheld handle, a water inlet pipe and a rotating mounting shell, the handheld handle is threadedly connected to the threaded connecting pipe; the water inlet pipe is fixedly mounted on the handheld handle; the water inlet pipe is provided with threads; the outer side of the handheld handle is provided with anti-slip grooves; and the rotating mounting shell is fixedly mounted on the handheld handle.

[0009] In at least some embodiments, the expansion supply component includes: a piston cylinder, an expansion push screw and a push piston, the piston cylinder is fixedly connected to the connecting tube; the piston cylinder is threadedly connected to the expansion push screw; a handle is provided at the end of the expansion push screw; a push piston is fixedly mounted on the expansion push screw, and the push piston is sleeved inside the piston cylinder; the push piston is used to control the expansion of the sealing ring.

[0010] In at least some embodiments, the seal includes: a sealing ring and a connecting tube, two sealing rings are fixedly installed inside the detection mounting ring, and a gap is provided between the two sealing rings; a connecting tube is fixedly installed on the two sealing rings; and the two sealing rings are used to fit on the outside of the joint of the plastic part.

[0011] In at least some embodiments, the leakage detection part includes: a connecting tube, a limit block, a micro switch, a spring, a detection piston and an indicator light, wherein both ends of the connecting tube are connected between the suction tube and the terminal tube; a limit block is installed on the connecting tube, and a circle of through holes is provided on the limit block; a micro switch is fixedly installed on the limit block; a spring is sleeved inside the connecting tube, and the spring is fixedly installed on the limit block; a micro switch is fixedly installed on the limit block; a detection piston is slidably sleeved on the connecting tube; an indicator light is sleeved on the connecting tube; the micro switch is electrically connected to the indicator light; the detection piston is used to squeeze the micro switch; and the micro switch is used to control the internal pressure of the injection molded part.

[0012] In at least some embodiments, the leak point length inspection component includes: a detection control wheel, an isolation plate and a pulling rubber belt, the detection control wheel is rotatably mounted on a rotating mounting shell; a hand wheel is provided on the top of the detection control wheel; two pulling rubber belts are fixedly mounted on the detection control wheel; the detection control wheel is used to reel in the two pulling rubber belts; two isolation plates are fixedly mounted on the detection control wheel; the two pulling rubber belts are located outside the two isolation plates; and the two pulling rubber belts pass through a handheld handle.

[0013] In at least some embodiments, the suction compensation component also includes: a three-way valve, a bypass connecting pipe, a terminal pipe and a flange connecting plate, wherein the three-way valve is fixedly installed on the bypass pipe; the three-way valve is fixedly connected with the bypass connecting pipe, and the end of the bypass connecting pipe is connected with the terminal pipe, and the end of the terminal pipe is fixedly installed with a flange connecting plate; the flange connecting plate is used to be installed on the injection molded part to be inspected by bolts; the three-way valve is used to adjust the exhaust path.

[0014] The present invention provides an industrial plastic injection molded parts performance testing device, which has the following beneficial effects:

[0015] The leakage point length inspection piece used in the present invention can be combined with a handheld mounting piece and can be handheld for rapid inspection by observing bubbles on the flange injection molded part. The sealing tape can be used to detect the leakage length when the flange injection molded part leaks, thereby avoiding the difficulty in understanding the leakage degree when a long gap appears locally on the flange injection molded part. This can make it easier for the staff to perform subsequent grinding and maintenance work on the flange.

[0016] In addition, the leakage detection unit can be used to quickly perform negative pressure suction, which can easily prompt the staff to intuitively understand the leakage and prevent the problem of missing bubbles when observing slow leakage. It can ensure that slow leakage of the flange can be detected. The three-way valve and bypass connecting pipe can be used to compensate for the internal pressure of the tank body to prevent the flange from leaking during suction, causing the tank body to shrink and cause deformation and damage to the tank body. The three-way valve can be used to compensate for the air pressure in the tank to ensure normal tank pressure.

[0017] In addition, the seal can be used to cooperate with the detection installation ring to be directly installed on the connection of the flange injection molded part. The operation is simple and convenient. It can be operated by hand without immersion in a water pool. It also improves the test efficiency. The expansion supply part can be used to control the expansion of the sealing ring to fit tightly between the two flanges, ensuring the detection sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 A schematic diagram showing the overall structure of the present application;

[0022] Figure 2 A cross-sectional view showing the internal structure of the present application;

[0023] Figure 3 A schematic diagram showing the bottom structure of the present application;

[0024] Figure 4 A schematic diagram showing the structure of the detection sleeve of the present application is shown;

[0025] Figure 5 A schematic diagram showing the seal structure of the present application is shown;

[0026] Figure 6 This application shows Figure 2 A magnified view of the structure of the middle B region;

[0027] Figure 7 A schematic diagram showing the structure of the handheld mounting piece of the present application is shown;

[0028] Figure 8 A schematic diagram showing the structure of the leak point length inspection piece of the present application is shown;

[0029] Fig. 9 This application shows Figure 8 A magnified view of the structure of the middle C region;

[0030] Fig.10 A schematic diagram showing the structure of the suction compensating member of the present application is shown;

[0031] Fig.11 This application shows Fig.10 A magnified view of the structure of the middle D region;

[0032] Fig.12 A schematic diagram showing the structure of the leakage detection unit of the present application.

[0033] List of reference numerals:

[0034] 1. Detection sleeve; 101. Detection installation ring; 102. Threaded connection pipe; 103. Sliding raised ring; 2. Sealing member; 201. Sealing ring; 202. Connection pipe; 3. Expansion supply member; 301. Piston cylinder; 302. Expansion push screw; 303. Push piston; 4. Hand-held installation member; 401. Hand-held handle; 4011. Water inlet pipe; 402. Rotating installation shell; 5. Leakage point length inspection member; 501. Detection control wheel; 5011. Isolation piece; 502, pulling rubber belt; 503, closing belt; 5031, connecting column; 6, suction compensation part; 601, threaded butt tube; 602, suction pump; 603, suction pipe; 604, bypass pipe; 605, three-way valve; 606, bypass connecting pipe; 607, terminal pipe; 608, flange connecting plate; 7, leakage detection part; 701, connecting tube; 702, limit block; 703, micro switch; 704, spring; 705, detection piston; 706, indicator light. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figures 1 to 12 :

[0037] The present invention proposes an industrial plastic injection molded part performance testing device, comprising a detection sleeve 1, a sealing part 2 is installed on the detection sleeve 1, and an expansion supply part 3 is installed on the sealing part 2; the expansion supply part 3 is used to control the seal 2 to expand and seal the injection molded part; a handheld mounting part 4 is installed on the detection sleeve 1; the handheld mounting part 4 is used for handholding; a leakage point length inspection part 5 is installed on the handheld mounting part 4; the leakage point length inspection part 5 is used to detect the leakage length of the plastic part; a suction compensation part 6 is installed on the handheld mounting part 4; the suction compensation part 6 is used to compensate for negative pressure; a leakage detection part 7 is installed on the suction compensation part 6; the detection sleeve 1 comprises: a detection installation ring 101 and a threaded connecting pipe 102, the threaded connecting pipe 102 is fixedly installed on the detection installation ring 101; the detection installation ring 101 is a transparent plastic structure.

[0038] In the disclosed embodiment, the detection sleeve 1 also includes: a sliding protrusion ring 103, a threaded connecting tube 102 is fixedly installed on the inner side of the detection installation ring 101, and the threaded connecting tube 102 is a transparent plastic structure; the sealing member 2 includes: a sealing ring 201 and a connecting tube 202, two sealing rings 201 are fixedly installed inside the detection installation ring 101, and a gap is provided between the two sealing rings 201; a connecting tube 202 is fixedly installed on the two sealing rings 201; the two sealing rings 201 are used to fit on the outside of the joint of the plastic part; the expansion supply member 3 includes: a piston cylinder 301, an expansion propulsion screw 302 and a propulsion piston 303, the piston cylinder 301 is fixedly connected to the connecting tube 202; the piston cylinder 301 is threadedly connected to the expansion propulsion screw 302; a handle is provided at the end of the expansion propulsion screw 302; the propulsion piston is fixedly installed on the expansion propulsion screw 302 303, and the push piston 303 is sleeved inside the piston cylinder 301; the push piston 303 is used to control the expansion of the sealing ring 201, and the sealing member 2 is used, which can be used to cooperate with the detection installation ring 101 to be directly sleeved on the connection of the flange injection molded part. The operation is simple and convenient, and it can be operated by hand without soaking in a pool of water, which can ensure the flexibility of use and improve the test efficiency. The sealing performance test of the flange injection molded part is simple and direct. The expansion supply member 3 used in this structure can be used to control the expansion of the sealing ring 201 and fasten it between the two flanges, which ensures the detection sealing and ensures the accuracy of the detection. The two sealing rings 201 and the detection installation ring 101 are used to form a cavity between the connecting seams, and the push screw 302 is rotated to expand and drive the push piston 303 to move, and the internal air pressure of the piston cylinder 301 is pushed into the sealing ring 201 to expand it and increase the fitting and sealing effect.

[0039] In the embodiment of the present disclosure, the handheld mounting member 4 includes: a handheld handle 401, a water inlet pipe 4011 and a rotating mounting shell 402. The handheld handle 401 is threadedly connected to the threaded connecting pipe 102; the water inlet pipe 4011 is fixedly installed on the handheld handle 401; the water inlet pipe 4011 is provided with threads; the outer side of the handheld handle 401 is provided with anti-slip grooves; the rotating mounting shell 402 is fixedly installed on the handheld handle 401; the leak point length inspection member 5 includes: a detection control wheel 501, an isolation sheet 5011 and a pulling rubber belt 502, the detection control wheel 501 is rotatably installed on the rotating mounting shell 402; a hand wheel is provided on the top of the detection control wheel 501; two pulling rubber belts 502 are fixedly installed on the detection control wheel 501; the detection control wheel 501 is used to roll up two pulling rubber belts 502; two isolation sheets 5011 are fixedly installed on the detection control wheel 501; the two pulling rubber belts 502 are located outside the two isolation sheets 5011; the two pulling rubber belts 502 pass through the handheld handle 401; the leakage point length inspection part 5 also includes: a closing belt 503 and a connecting column 5031, and the end of the closing belt 503 is fixedly installed on the detection control wheel 501; the closing belt 503 is rolled up on the detection control wheel 501, and the other end of the closing belt 503 is fixedly installed with a connecting column 5031; two pulling rubber belts 502 are fixedly installed at both ends of the connecting column 5031; the closing belt 503 is a rubber elastic structure; a groove is provided on the outside of the closing belt 503; the groove on the outside of the closing belt 503 The groove is slidably installed on the sliding raised ring 103; the closing belt 503 and the pulling rubber belt 502 are wound in opposite directions on the detection control wheel 501. The leakage point length inspection piece 5 can be used in conjunction with the handheld installation piece 4. The handheld operation can be used to quickly detect the flange injection molded part by observing the bubbles. It is simple and intuitive. At the same time, the structure uses the closing belt 503 to facilitate the detection of the leakage length when the flange injection molded part leaks, avoiding the problem that only the appearance of bubbles cannot reflect the gap length when a long gap appears locally in the flange injection molded part. It is more practical and can make it easier for the staff to perform subsequent grinding and maintenance on the flange. At the same time, the closing belt 503 used in the structure can be used in conjunction with the pulling rubber belt 502 to use the detection control The wheel 501 can quickly pull and control the movement of the sealing belt 503, ensuring flexibility of use, compact structure, and convenient operation. The surface of the flange injection molded part can be tested for leakage in sequence. Because the sealing belt 503 and the pulling rubber belt 502 are wound in opposite directions on the detection control wheel 501, when the pulling rubber belt 502 is wound, the sealing belt 503 is in an unwinding state. The pulling rubber belt 502 pulls the sealing belt 503, and the sealing belt 503 slides on the sliding protrusion ring 103, so as to achieve adhesion at the joint between the flange injection molded part and the flange connecting plate 608. At this time, if the gap at the joint is long, the sealing belt 503 needs to completely close the entire leakage point before the bubbles disappear. In this way, the length of the leakage gap can be known.

[0040] Embodiment 2, on the basis of embodiment 1, the suction compensating member 6 comprises: a threaded butt pipe 601, a suction pump 602, a suction pipe 603 and a bypass pipe 604, the threaded butt pipe 601 is threadedly connected to the water inlet pipe 4011; a suction pump 602 is installed on the threaded butt pipe 601; a suction pipe 603 is connected to the upper pipe of the suction pump 602; a bypass pipe 604 is connected to the side pipe of the suction pipe 603; the suction pump 602 is used to suck the joint of the injection molded part; the suction compensating member 6 also comprises: a three-way valve 605, a bypass connecting pipe 606, a terminal pipe 607 and a flange connecting plate 608, the three-way valve 605 is fixedly installed on the bypass pipe 604; a bypass connecting pipe 606 is fixedly connected to the upper pipe of the three-way valve 605, and the end of the bypass connecting pipe 606 The end pipe is connected with the terminal pipe 607, and the end of the terminal pipe 607 is fixedly installed with a flange connection plate 608; the flange connection plate 608 is used to be installed on the injection molded part to be detected by bolts; the three-way valve 605 is used to adjust the exhaust path; the leakage detection part 7 includes: a connecting tube 701, a limit block 702, a micro switch 703, a spring 704, a detection piston 705 and an indicator light 706, and the two ends of the connecting tube 701 are connected between the suction pipe 603 and the end pipe 607; a limit block 702 is installed on the connecting tube 701, and a circle of through holes is provided on the limit block 702; a micro switch 703 is fixedly installed on the limit block 702; a spring 704 is sleeved inside the connecting tube 701, and the spring 704 is fixedly installed on the limit block 702 On the limit block 702, a micro switch 703 is fixedly installed; a detection piston 705 is slidably sleeved on the connecting tube 701; an indicator light 706 is sleeved on the connecting tube 701; the micro switch 703 is electrically connected to the indicator light 706; the detection piston 705 is used to squeeze the micro switch 703; the micro switch 703 is used to control the internal pressure of the injection molded part. The use of the leakage detection part 7 in conjunction with the suction compensation part 6 can quickly perform negative pressure suction work, which can facilitate the staff to perform leak detection work. At the same time, the use of the leakage detection part 7 in this structure can facilitate the structure to perform leak detection work on the tank flange, which can facilitate the staff to intuitively understand the occurrence of leakage, prevent the problem of easy omission of bubbles when the leakage is slow, and when the flange appears Slow leakage can be guaranteed to be detected. The three-way valve 605 and the bypass connecting pipe 606 can be used to compensate for the internal pressure of the tank body to prevent the flange from leaking during suction and causing the tank body to shrink and deform and damage. The three-way valve 605 can be used to compensate for the air pressure in the tank body to ensure that the tank body pressure is normal. The structure is simple and the safety is stronger. In particular, the flange of the tank body is subjected to negative pressure suction for a long time. If the flange injection molded part leaks, negative pressure is generated in the tank body. Under the action of negative pressure, the detection piston 705 moves inward, compresses the spring 704 and squeezes the micro switch 703, so that the indicator light 706 can be controlled to light up as a prompt. By controlling the three-way valve 605, the pressure inside the flange tank body can be compensated. The structure is simple and the safety is stronger.

[0041] The working principle of this embodiment is as follows: first, the detection installation ring 101 is sleeved on the outer side of the flange injection molded part and the flange connecting plate 608. When testing two mutually connected flange injection molded parts, the detection installation ring 101 can also be sleeved between the two mutually connected flange injection molded parts. The flange connecting plate 608 can be connected to the flange injection molded part at the end by bolts. The two sealing rings 201 are respectively attached to the outer side of the flange connecting plate 608 and the outer side of the flange injection molded part, ensuring that the two sealing rings 201 are located between the joints. The two sealing rings 201 and the detection installation ring 101 are used to form a cavity between the connection seams, and the cavity is pushed by rotation expansion. The screw rod 302 drives the advancing piston 303 to move, and the air pressure inside the piston cylinder 301 is pushed into the sealing ring 201 to expand it, thereby increasing the sealing effect. The water inlet pipe 4011 introduces pure water to soak the flange joint. At this time, with the suction of the suction pump 602, the staff can observe whether there are bubbles, that is, the sealing of the flange joint. If there are bubbles, the detection control wheel 501 can be rotated to achieve the winding of the pulling rubber belt 502. Because the winding direction of the closing belt 503 and the pulling rubber belt 502 on the detection control wheel 501 is opposite, when the pulling rubber belt 502 is wound, the closing belt 503 is in the unwinding state. State, cooperate with the pulling rubber belt 502 to pull the sealing belt 503, the sealing belt 503 slides on the sliding protrusion ring 103, and is also fitted at the joint between the flange injection molded part and the flange connecting plate 608. At this time, if the gap at the joint is long, the sealing belt 503 needs to completely close the entire leakage point, and the bubbles will disappear. Otherwise, even if the position where the bubbles are blocked, the bubbles will appear from the unsealed position of the sealing belt 503. In this way, the length of the leaking gap can be known; after water is filled in the water inlet pipe 4011, the threaded butt pipe 601 is tightened on the water inlet pipe 4011. At this time, the suction pump 602 sucks. If the flange injection molded part When leakage occurs, negative pressure is generated in the tank body. Under the action of negative pressure, the detection piston 705 moves inward, compresses the spring 704 and squeezes the micro switch 703, so that the indicator light 706 can be controlled to light up. At this time, the staff can know that there is a leakage at the flange connection and can control the three-way valve 605. At this time, the suction pump 602 can be discharged directly from the bypass connecting pipe 606 by the original exhaust gas, and the exhaust gas of the suction pump 602 is discharged from the bypass connecting pipe 606 to the terminal pipe 607, and then discharged from the inside of the flange connection plate 608. At this time, the pressure inside the flange tank body can be compensated to prevent the plastic tank body connected to the flange injection molding from sinking.

[0042] In this article, there are a few points to note:

[0043] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0044] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0045] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An industrial plastic injection molded part performance testing device, comprising a detection sleeve (1), on which a sealing member (2) is mounted, characterized in that: An expansion supply component (3) is installed on the sealing component (2); the expansion supply component (3) is used to control the expansion of the sealing component (2) to seal and fit the injection molded component; A handheld mounting piece (4) is mounted on the detection sleeve (1); the handheld mounting piece (4) is used for hand-holding; A leak point length inspection component (5) is installed on the handheld mounting component (4); the leak point length inspection component (5) is used to detect the leakage length of the plastic component; A suction compensating member (6) is mounted on the handheld mounting member (4); the suction compensating member (6) is used to compensate for negative pressure; a leakage detecting unit (7) is mounted on the suction compensating member (6); The detection sleeve (1) comprises: a detection installation ring (101) and a threaded connection pipe (102); the threaded connection pipe (102) is fixedly installed on the detection installation ring (101); and the detection installation ring (101) is a transparent plastic structure.

2. An industrial plastic injection molded parts performance testing device according to claim 1, characterized in that: The detection sleeve (1) further comprises: a sliding protruding ring (103); a threaded connection tube (102) is fixedly mounted on the inner side of the detection mounting ring (101); and the threaded connection tube (102) is a transparent plastic structure.

3. The industrial plastic injection molded parts performance testing device according to claim 1, characterized in that: The sealing member (2) comprises: a sealing ring (201) and a connecting tube (202); two sealing rings (201) are fixedly mounted inside the detection mounting ring (101), and a space is provided between the two sealing rings (201); a connecting tube (202) is fixedly mounted on the two sealing rings (201); and the two sealing rings (201) are used to fit on the outside of the joint of the plastic part.

4. An industrial plastic injection molded parts performance testing device according to claim 3, characterized in that: The expansion supply member (3) comprises: a piston cylinder (301), an expansion propulsion screw rod (302) and a propulsion piston (303); the piston cylinder (301) is fixedly connected to the connecting pipe (202); the piston cylinder (301) is threadedly connected with the expansion propulsion screw rod (302); a handle is provided at the end of the expansion propulsion screw rod (302); a propulsion piston (303) is fixedly mounted on the expansion propulsion screw rod (302), and the propulsion piston (303) is sleeved inside the piston cylinder (301); the propulsion piston (303) is used to control the expansion of the sealing ring (201).

5. The industrial plastic injection molded parts performance testing device according to claim 2, characterized in that: The handheld mounting member (4) comprises: a handheld handle (401), a water inlet pipe (4011) and a rotatable mounting shell (402); the handheld handle (401) is threadedly connected to the threaded connecting pipe (102); the water inlet pipe (4011) is fixedly mounted on the handheld handle (401); the water inlet pipe (4011) is provided with threads; the outer side of the handheld handle (401) is provided with anti-slip grooves; and the rotatable mounting shell (402) is fixedly mounted on the handheld handle (401).

6. The industrial plastic injection molded parts performance testing device according to claim 5, characterized in that: The leak point length inspection component (5) comprises: a detection control wheel (501), an isolation sheet (5011) and a pulling rubber belt (502); the detection control wheel (501) is rotatably mounted on a rotating mounting shell (402); a hand wheel is provided on the top of the detection control wheel (501); two pulling rubber belts (502) are fixedly mounted on the detection control wheel (501); the detection control wheel (501) is used to reel in the two pulling rubber belts (502); two isolation sheets (5011) are fixedly mounted on the detection control wheel (501); the two pulling rubber belts (502) are located outside the two isolation sheets (5011); and the two pulling rubber belts (502) pass through a handheld handle (401).

7. An industrial plastic injection molded parts performance testing device according to claim 6, characterized in that: The leak point length inspection member (5) further comprises: a closing belt (503) and a connecting column (5031), wherein the end of the closing belt (503) is fixedly mounted on the detection control wheel (501); the closing belt (503) is rolled up on the detection control wheel (501), and the other end of the closing belt (503) is fixedly mounted with a connecting column (5031); two pulling rubber belts (502) are fixedly mounted at both ends of the connecting column (5031); the closing belt (503) is a rubber elastic structure; a groove is provided on the outer side of the closing belt (503); the groove on the outer side of the closing belt (503) is slidably mounted on the sliding protrusion ring (103); the closing belt (503) and the pulling rubber belt (502) are wound on the detection control wheel (501) in opposite directions.

8. The industrial plastic injection molded parts performance testing device according to claim 5, characterized in that: The suction compensation component (6) comprises: a threaded butt-jointed pipe (601), a suction pump (602), a suction pipe (603) and a bypass pipe (604); the threaded butt-jointed pipe (601) is threadedly connected to the water inlet pipe (4011); the suction pump (602) is installed on the threaded butt-jointed pipe (601); the suction pump (602) is connected to the suction pipe (603) on the upper pipe; the side of the suction pipe (603) is connected to the bypass pipe (604); the suction pump (602) is used for sucking the joints of the injection molded parts.

9. The industrial plastic injection molded parts performance testing device according to claim 8, characterized in that: The suction compensation component (6) further comprises: a three-way valve (605), a bypass connecting pipe (606), a terminal pipe (607) and a flange connection plate (608); the three-way valve (605) is fixedly mounted on the bypass pipe (604); the bypass connecting pipe (606) is fixedly connected to the three-way valve (605), and the end of the bypass connecting pipe (606) is connected to the terminal pipe (607), and the end of the terminal pipe (607) is fixedly mounted with a flange connection plate (608); the flange connection plate (608) is used to be mounted on the injection molded part to be tested by means of bolts; the three-way valve (605) is used to adjust the exhaust path.

10. The industrial plastic injection molded parts performance testing device according to claim 9, characterized in that: The leakage detection unit (7) comprises: a connecting tube (701), a limit block (702), a micro switch (703), a spring (704), a detection piston (705) and an indicator light (706); the two ends of the connecting tube (701) are connected between the suction pipe (603) and the terminal pipe (607); a limit block (702) is installed on the connecting tube (701), and a circle of through holes is provided on the limit block (702); the micro switch (703) is fixedly installed on the limit block (702); the connecting tube (701) is provided with a detection piston (705) and an indicator light (706) is provided inside the connecting tube (701). The part is sleeved with a spring (704), and the spring (704) is fixedly mounted on the limit block (702); a micro switch (703) is fixedly mounted on the limit block (702); a detection piston (705) is slidably sleeved on the connecting tube (701); an indicator light (706) is sleeved on the connecting tube (701); the micro switch (703) is electrically connected to the indicator light (706); the detection piston (705) is used to squeeze the micro switch (703); and the micro switch (703) is used to control the internal pressure of the injection molded part.

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