A sealant sealability testing device

Abstract

The utility model discloses a sealant sealing property testing arrangement relates to the sealing property test field, including detection box still includes the seal cover of setting in the detection box top opening position, the top of seal cover is connected through the air pump that has of hose connection, the top of seal cover is connected with the detector that detects the air pressure in detection box, still include setting on the transmission mechanism for the material of being used to press down on seal cover. The utility model discloses through setting transmission mechanism, can need to be placed in detection box to the material that has been coated with sealant, if material deadweight is greater than buoyancy, can directly cover seal cover, if deadweight is less than buoyancy, can give the rotary force of rotary lever, make two pressure rods contact with material each other when seal cover covers, and the material is pressed into liquid surface below with the contact of pressure rod and the material that floats on the water surface, through the data of observation bubble and detector, draw the change of air pressure in detection box, to this completes the sealing property test of sealant.

Description

Technical Field

[0001] This utility model relates to the field of sealing performance testing, specifically a sealing performance testing device for sealant. Background Technology

[0002] Sealant sealing performance testing is a crucial step in verifying the sealant's ability to prevent the penetration of gases, liquids, or other substances under specific working conditions (such as pressure, temperature, and media contact). It is widely used in fields such as construction, automotive, electronics, and aerospace.

[0003] Based on the testing principle and the testing medium, sealing tests are mainly divided into four categories: air pressure method, water pressure method, vacuum method, and permeation method. Among them, the water pressure method involves filling the sealed cavity with water or immersing the sample in water to observe whether bubbles are overflowing. However, when the material sealing part is not completely immersed below the liquid surface, the gas comes into direct contact with the air, and bubbles cannot be observed. Based on this, this utility model proposes a sealing adhesive sealing test device. Utility Model Content

[0004] The purpose of this invention is to provide a sealant sealing performance testing device in order to solve the problems mentioned in the background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sealant sealing performance testing device, including a testing chamber, and a sealing cover disposed at the top opening of the testing chamber. The top of the sealing cover is connected to an air pump via a hose, and the top of the sealing cover is connected to a detector for detecting the air pressure inside the testing chamber. The device also includes a transmission mechanism disposed on the sealing cover for pressing down the material.

[0006] The transmission mechanism includes a limiting unit and a transmission unit;

[0007] The transmission unit is used to drive the movement of the limiting unit;

[0008] The limiting unit is used to press down the material floating on the liquid surface.

[0009] As a further embodiment of this utility model: the transmission unit includes a rotating rod, a transmission rod, and a connecting block;

[0010] The rotating rod is threaded to the axis of the sealing cover, and the sealing cover extends into the interior of the sealing cover. The bottom of the rotating rod is vertically slidably connected to a connecting block via a rectangular block. The connecting block is rotatably connected to the bottom of the axis of the sealing cover, and a sealing ring is provided at the contact position with the sealing cover. The transmission rod is fixed to the bottom outer wall of the connecting block and sleeved on the outside of the positioning rod.

[0011] As a further improvement of this utility model: the limiting unit includes a guide groove, a positioning rod, and a pressure rod;

[0012] Two guide grooves are symmetrically formed on the inner bottom of the sealing cover. The guide grooves are used to guide the lateral movement of the two positioning rods. The four positioning rods are symmetrically slidably installed on the inner side of the end of the guide groove and extend to the outside of the guide groove. The bottom of the two positioning rods that are not in the same guide groove is fixed with a pressure rod. The pressure rod is used to press down the material floating on the liquid surface.

[0013] As a further improvement of this utility model: the outer wall of the pressure rod is generally in the shape of an "L" shape, and the two pressure rods are connected to each other.

[0014] As a further embodiment of this utility model: the inner wall of the sealing cover is formed with a threaded groove that matches the outer wall of the rotating rod, and the inner cavity of the rotating rod is formed with a sliding groove for relative movement of the rectangular block at the top of the connecting block, and the sliding groove is in the shape of a "T".

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By setting up a transmission mechanism, materials that need to be coated with sealant can be placed in the testing chamber. If the material's weight is greater than the buoyancy, the sealing cover can be directly closed. If the weight is less than the buoyancy, the rotating rod can be given rotational force to bring the two pressure rods closer together and into contact with the material. After the sealing cover is closed, the pressure rods will contact the material floating on the water surface and press the material below the liquid surface. By observing the bubbles and the data from the detector, the change in air pressure inside the testing chamber can be obtained, thus completing the sealing performance test of the sealant. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the sealing cap of this utility model;

[0019] Figure 3 This is a schematic diagram of the transmission mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the rotating rod and connecting block of this utility model.

[0021] In the diagram: 1. Testing box; 2. Sealing cover; 3. Air pump; 4. Transmission mechanism; 401. Rotating rod; 402. Transmission rod; 403. Guide groove; 404. Positioning rod; 405. Pressure rod; 406. Connecting block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 In this embodiment of the present invention, a sealant sealing performance testing device includes a test chamber 1, a sealing cover 2 disposed at the top opening of the test chamber 1, an air pump 3 connected to the top of the sealing cover 2 via a hose, a detector for detecting the air pressure inside the test chamber 1 connected to the top of the sealing cover 2, and a transmission mechanism 4 disposed on the sealing cover 2 for pressing down the material.

[0024] The transmission mechanism 4 includes a limiting unit and a transmission unit;

[0025] The transmission unit is used to drive the movement of the limit unit;

[0026] The limiting unit is used to press down the material floating on the liquid surface;

[0027] The transmission unit includes a rotating rod 401, a transmission rod 402, and a connecting block 406;

[0028] The rotating rod 401 is threaded to the shaft of the sealing cover 2, and the sealing cover 2 extends into the interior of the sealing cover 2. The bottom of the rotating rod 401 is vertically slidably connected to the connecting block 406 through a rectangular block. The connecting block 406 is rotatably connected to the bottom of the shaft of the sealing cover 2 and a sealing ring is provided at the contact position with the sealing cover 2. The transmission rod 402 is fixed to the bottom outer wall of the connecting block 406 and sleeved on the outside of the positioning rod 404.

[0029] The limiting unit includes a guide groove 403, a positioning rod 404, and a pressure rod 405;

[0030] Two guide grooves 403 are symmetrically opened on the inner bottom of the sealing cover 2. The guide grooves 403 are used to guide the lateral movement of the two positioning rods 404. The four positioning rods 404 are symmetrically slidably installed on the inner side of the end of the guide grooves 403 and extend to the outside of the guide grooves 403. The bottom of the two positioning rods 404 that are not in the same guide groove 403 is fixed with a pressure rod 405. The pressure rod 405 is used to press down the material floating on the liquid surface.

[0031] In this embodiment: By placing the hollow material completely coated with sealant into the testing chamber 1, if the material's weight is greater than its buoyancy, the sealing cover 2 can be directly closed. Air is drawn into the testing chamber 1 through the hose connected to the air pump 3 to obtain a constant air pressure. If the weight is less than its buoyancy, after the sealing cover 2 is closed on the testing chamber 1, a rotational force is applied to the rotating rod 401. The rotating rod 401 rotates along the threaded groove on the inner wall of the sealing cover 2. The rotating rod 401, through the rectangular block fitted inside the cavity, provides rotational force to the connecting block 406. The connecting block 406 synchronously drives the transmission rod 402 to rotate circumferentially, causing the positioning rod 404 sleeved on the inner side of the transmission rod 402 to move laterally along the inner wall of the guide groove 403 under the inclined thrust from the transmission rod 402. This causes the two pressure rods 405 to approach each other, and the "L"-shaped connecting block 406 to approach each other and contact the two sides of the material, thereby clamping and limiting the material on the liquid surface. After the material is pressed into the liquid surface, by observing whether there are bubbles discharged and whether the air pressure data displayed on the detector changes, it can be determined whether the sealing performance of the sealant is qualified.

[0032] Please refer to this carefully. Figures 1-4 The outer wall of the pressure bar 405 has an overall "L" shaped structure, and the two pressure bars 405 are connected to each other.

[0033] In this embodiment: With this structure, after the detection box 1 and the sealing cover 2 are closed, the vertical part of the pressure rod 405 can limit the hollow material, and at the same time, when it comes into contact with the hollow material, it will completely press the hollow material below the liquid surface.

[0034] Please refer to this carefully. Figures 1-4 The inner wall of the sealing cover 2 is formed with a threaded groove that matches the outer wall of the rotating rod 401. The inner cavity of the rotating rod 401 is formed with a sliding groove for relative movement of the rectangular block at the top of the connecting block 406, and the sliding groove is in the shape of a "T".

[0035] In this embodiment: with this structure, when the rotating rod 401 moves circumferentially and vertically along the threaded groove, the connecting block 406 will also move vertically relative to it along the outer wall of the top rectangular block and rotate circumferentially in sync.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sealant sealability testing device comprising a test chamber (1), characterized in that, It also includes a sealing cover (2) set at the top opening of the detection box (1), the top of the sealing cover (2) is connected to an air pump (3) via a hose, the top of the sealing cover (2) is connected to a detector for detecting the air pressure inside the detection box (1), and a transmission mechanism (4) set on the sealing cover (2) for pressing down the material. The transmission mechanism (4) includes a limiting unit and a transmission unit; The transmission unit is used to drive the movement of the limiting unit; The limiting unit is used to press down the material floating on the liquid surface.

2. The sealant sealability testing device of claim 1, wherein, The transmission unit includes a rotating rod (401), a transmission rod (402), and a connecting block (406). The rotating rod (401) is threaded to the axis of the sealing cover (2), and the sealing cover (2) extends into the interior of the sealing cover (2). The bottom of the rotating rod (401) is vertically slidably connected to a connecting block (406) via a rectangular block. The connecting block (406) is rotatably connected to the bottom of the axis of the sealing cover (2) and a sealing ring is provided at the contact position with the sealing cover (2). The transmission rod (402) is fixed to the bottom outer wall of the connecting block (406) and sleeved on the outside of the positioning rod (404).

3. The sealant sealability testing apparatus of claim 1, wherein The limiting unit includes a guide groove (403), a positioning rod (404), and a pressure rod (405); Two guide grooves (403) are symmetrically opened on the inner bottom of the sealing cover (2). The guide grooves (403) are used to guide the lateral movement of the two positioning rods (404). The four positioning rods (404) are symmetrically slidably installed on the inner side of the end of the guide groove (403) and extend to the outside of the guide groove (403). The bottom of the two positioning rods (404) that are not in the same guide groove (403) is fixed with a pressure rod (405). The pressure rod (405) is used to press down the material floating on the liquid surface.

4. The sealant sealing performance testing device according to claim 3, characterized in that, The outer wall of the pressure bar (405) is generally L-shaped, and the two pressure bars (405) are connected to each other.

5. The sealant sealing performance testing device according to claim 2, characterized in that, The inner wall of the sealing cover (2) is formed with a threaded groove that matches the outer wall of the rotating rod (401). The inner cavity of the rotating rod (401) is formed with a sliding groove for relative movement of the rectangular block at the top of the connecting block (406), and the sliding groove is in the shape of a "T".

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