A laminated glass edge seal negative pressure detection clamp

Abstract

The utility model relates to glass detection technical field, solved the glass leakproofness detection period, because glass is more fragile, when clamping and fixing, dare not use the clamping of bigger force, but the force is not enough, lead to air leakage, influence the accuracy of the problem of detection. Specifically for a kind of laminated glass edge leakproofness negative pressure detection clamp, including fixed plate, the fixed plate bottom two sides are axially symmetrical and are fixedly connected with base, the both ends one side of fixed plate is fixedly connected with connecting plate, one of the connecting plate surface is provided with runner, the runner one end penetrates the connecting plate inside fixedly connected with positive and negative screw thread rod, the other end of positive and negative screw thread rod is rotatably connected with another connecting plate surface through bearing, the surface one side screw thread connection of positive and negative screw thread rod has A drive board and its surface other side screw thread connection has B drive board, the one side fixed connection of A drive board and B drive board has square and the square is slidably connected on the surface of fixed plate.

Description

Technical Field

[0001] This utility model relates to the field of glass testing technology, specifically a negative pressure testing fixture for the edge sealing of laminated glass. Background Technology

[0002] The patent announcement number CN219870189U discloses a device for testing the sealing performance of insulating glass, which includes a frame, a test housing mounted on the frame, multiple test chambers with open top and bottom ends inside the test housing, and a sealing piston slidably and sealingly installed in each test chamber; a cover plate that can close the upper opening of the test chamber is mounted on the test housing, and a pressure sensor and an argon gas detector corresponding to each test chamber are mounted on the test housing; a drive mechanism is mounted on the frame, which is used to drive each sealing piston to move up and down in the test chamber.

[0003] The test involves placing the insulated glass unit in a negative pressure sealed space consisting of a cover plate, a test chamber, and a sealing piston. An argon gas detector measures the argon gas concentration within the sealed space. Based on the magnitude and duration of the negative pressure and the changes in argon gas concentration, the specific sealing performance of the insulated glass unit can be determined, facilitating the assessment of its sealing level and making the test results more accurate.

[0004] However, during the glass sealing test, because the glass is relatively fragile, we dare not use too much force when clamping and fixing it. But if the force is insufficient, it will lead to air leakage and affect the accuracy of the test. This method is not very accurate for testing the edge sealing of laminated glass. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a negative pressure testing fixture for the edge sealing of laminated glass. This solves the problem that during glass sealing testing, due to the fragility of the glass, excessive clamping force is not used, but insufficient force leads to air leakage, affecting the accuracy of the test.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a negative pressure testing fixture for the edge sealing of laminated glass, comprising a fixed plate, with bases fixedly connected to both sides of the bottom of the fixed plate in an axially symmetrical manner, and connecting plates fixedly connected to one side of each end of the fixed plate, a rotating wheel provided on the surface of one of the connecting plates, a positive and negative threaded rod fixedly connected to one end of the rotating wheel through the interior of the connecting plate, and the other end of the positive and negative threaded rod rotatably connected to the surface of another connecting plate via a bearing, a drive plate A is threadedly connected to one side of the surface of the positive and negative threaded rod, and a drive plate B is threadedly connected to the other side of its surface, a square ring is fixedly connected to one side of the drive plate A and the drive plate B, and the square ring is slidably connected to the surface of the fixed plate, and a support frame is fixedly connected to the top of the square ring;

[0007] A connecting block is fixedly connected to one side of the top of the support frame, and a positioning plate is fixedly connected to one side of the connecting block. An embedding groove is opened on the edge of the surface of the positioning plate, and an elastic airbag is set inside the embedding groove. A connecting pipe is connected through the back side of the elastic airbag. One end of the connecting pipe passes through the interior of the positioning plate and is connected to a connector. One end of the connector is connected to an inflation pipe, and one end of the inflation pipe is connected to an air pump.

[0008] In a specific embodiment, the two sections of the positive and negative threaded rod have opposite thread directions, and the A drive plate and B drive plate are respectively matched with the corresponding thread sections.

[0009] In one specific embodiment, a guide groove is provided on the inner side of the square ring, and a convex rail adapted to the guide groove is provided on the surface of the fixing plate.

[0010] In one specific embodiment, the elastic airbags are distributed circumferentially around the positioning plate, and the depth of the embedded groove is greater than the thickness of the elastic airbags in their uninflated state.

[0011] In one specific embodiment, the connecting pipe is a metal corrugated pipe structure, and the inflation pipe is a pressure-resistant rubber hose.

[0012] In one specific embodiment, the support frame is trapezoidal in shape, and the connecting block is welded to the end of the support frame.

[0013] Compared with the prior art, this utility model provides a negative pressure testing fixture for the edge sealing of laminated glass, which has the following advantages:

[0014] In the technical solution disclosed in this utility model, the circumferential pressure sealing design of the elastic airbag achieves a dynamic seal with zero damage to the glass edge. When the positioning plate clamps the glass edge, the air pump inflates the elastic airbag through the inflation pipe and connector. The airbag expands in the embedded groove to fill the gap between the positioning plate and the glass, forming a uniform and flexible sealing surface. This solves the problem of airtight leakage caused by insufficient clamping force and avoids the risk of glass damage from traditional rigid clamps. Through the design of a bidirectional linkage mechanism driven by positive and negative threaded rods, precise and symmetrical control of clamping pressure is achieved. The rotating wheel drives the positive and negative threaded rods to rotate, and the two reverse threads push the A / B drive plates to move synchronously in opposite directions, causing the square ring to slide symmetrically along the surface of the fixed plate. The support frame synchronously transmits pressure, ensuring that the positioning plates on both sides apply equal pressure to the glass edge, eliminating the hidden danger of unilateral pressure damage, and reducing the clamping symmetry error. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the fixing plate structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the elastic airbag structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the positive and negative threaded rod structure of this utility model.

[0020] In the diagram: 1. Fixed plate; 2. Base; 3. Connecting plate; 4. Rotary wheel; 5. Threaded rod (positive and negative); 6. Drive plate A; 7. Drive plate B; 8. Square ring; 9. Support frame; 10. Connecting block; 11. Positioning plate; 12. Embedding groove; 13. Elastic airbag; 14. Connecting pipe; 15. Connector; 16. Inflation pipe; 17. Air pump. Detailed Implementation

[0021] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] Figures 1-4 In one embodiment of this utility model, a negative pressure testing fixture for the edge sealing of laminated glass includes a fixed plate 1. A base 2 is fixedly connected to both sides of the bottom of the fixed plate 1 in an axially symmetrical manner. A connecting plate 3 is fixedly connected to one side of each end of the fixed plate 1. A rotating wheel 4 is provided on the surface of one of the connecting plates 3. One end of the rotating wheel 4 passes through the interior of the connecting plate 3 and is fixedly connected to a threaded rod 5. The other end of the threaded rod 5 is rotatably connected to the surface of another connecting plate 3 via a bearing. A drive plate A 6 is threadedly connected to one side of the threaded rod 5, and a drive plate B 7 is threadedly connected to the other side of its surface. A square ring 8 is fixedly connected to one side of both drive plates A 6 and B 7, and the square ring 8 is slidably connected to the surface of the fixed plate 1. A support frame 9 is fixedly connected to the top of the square ring 8.

[0023] The specific problem addressed in this embodiment is to solve the issue that during glass sealing testing, due to the fragility of glass, excessive clamping force is not used when fixing it, but insufficient force leads to airtight leakage, affecting the accuracy of the test. This invention achieves dynamic sealing with zero damage to the glass edge through the circumferential pressure sealing design of the elastic airbag 13. When the positioning plate 11 clamps the glass edge, the air pump 17 inflates the elastic airbag 13 through the inflation pipe 16 and the connector 15. The airbag expands and fills the gap between the positioning plate 11 and the glass in the embedded groove 12, forming a uniform and flexible sealing surface. This solves the problem of airtight leakage caused by insufficient clamping force, and avoids the risk of glass damage caused by traditional rigid clamps. Through the design of the bidirectional linkage mechanism driven by the positive and negative threaded rods 5, precise and symmetrical control of the clamping pressure is achieved. The rotating wheel 4 drives the positive and negative threaded rods 5 to rotate, and its two reverse threads push the A / B drive plates to move synchronously in opposite directions, causing the square ring 8 to slide symmetrically along the surface of the fixed plate 1. The support frame 9 transmits pressure synchronously, ensuring that the positioning plates 11 on both sides apply equal pressure to the glass edge, eliminating the hidden danger of unilateral pressure damage, and reducing the clamping symmetry error.

[0024] A connecting block 10 is fixedly connected to one side of the top of the support frame 9. A positioning plate 11 is fixedly connected to one side of the connecting block 10. An embedding groove 12 is formed on the edge of the surface of the positioning plate 11. An elastic airbag 13 is set inside the embedding groove 12. A connecting pipe 14 is connected through the back side of the elastic airbag 13. One end of the connecting pipe 14 passes through the interior of the positioning plate 11 and is connected to a connector 15. One end of the connector 15 is connected to an inflation pipe 16. One end of the inflation pipe 16 is connected to an air pump 17. In this specific embodiment, rotating the wheel 4 drives the positive and negative threaded rod 5 to rotate. Its negative thread pushes the A driving plate 6 and the B driving plate 7 to move towards each other. The square ring 8 slides along the surface of the fixed plate 1, which drives the support frame 9 to move in conjunction. The positioning plate 11 clamps the edge of the glass. The air pump 17 inflates the elastic airbag 13 through the inflation pipe 16 and the connector 15. The airbag expands and fills the gap between the glass and the embedding groove 12 to form a seal. The positive and negative threaded rod 5 drives the symmetrical movement of the square ring 8, which, together with the expansion of the elastic airbag 13, achieves a non-destructive seal.

[0025] In this specific embodiment, the two sections of the positive and negative threaded rod 5 have opposite thread directions, and the A drive plate 6 and the B drive plate 7 are respectively matched with the corresponding thread sections;

[0026] The left section of the positive and negative threaded rod 5 engages with the A drive plate 6 with a left-hand thread, and the right section engages with the B drive plate 7 with a right-hand thread. When the rotating wheel 4 rotates clockwise, the two drive plates move inward synchronously, and the threaded sections with opposite directions drive the A drive plate 6 and the B drive plate 7 to move precisely in opposite directions.

[0027] In this specific embodiment, a guide groove is provided on the inner side of the square ring 8, and a convex rail adapted to the guide groove is provided on the surface of the fixing plate 1.

[0028] The V-shaped guide groove on the inner side of the square ring 8 engages with the trapezoidal convex rail on the surface of the fixing plate 1. When moving, the groove slides along the convex rail to limit movement. The structure of the guide groove and the convex rail ensures that the square ring 8 slides horizontally without deviation.

[0029] In this specific embodiment, the elastic airbags 13 are distributed circumferentially around the positioning plate 11, and the depth of the embedded grooves 12 is greater than the thickness of the elastic airbags 13 in their uninflated state.

[0030] The elastic airbag 13 is embedded in the groove 12 on the edge of the positioning plate 11 in a ring shape. When it is not inflated, it is recessed into the groove. When inflated, it protrudes from the groove surface and presses against the glass. The depth of the groove 12 allows the elastic airbag 13 to completely fill the sealing surface after it expands.

[0031] In this specific embodiment, the connecting pipe 14 is a metal corrugated pipe structure, and the inflation pipe 16 is a pressure-resistant rubber hose.

[0032] The metal corrugated pipe 14 connects to the elastic airbag 13, and the pressure-resistant rubber hose inflation pipe 16 receives the output pressure of the air pump 17. The corrugated pipe 14 adapts to the movement displacement, and the pressure-resistant hose inflation pipe 16 ensures high-pressure delivery.

[0033] In this specific embodiment, the support frame 9 is trapezoidal in shape, and the connecting block 10 is welded to the end of the support frame 9;

[0034] The top of the trapezoidal cross-section support frame 9 is welded with a connecting block 10, and the positioning plate 11 is fixed to the outer end face of the connecting block 10. The trapezoidal support frame 9 improves the bending stiffness, and the welded connecting block 10 enhances the overall structure.

[0035] Working principle: Rotating the rotating wheel 4 drives the positive and negative threaded rods 5 to rotate, causing the A drive plate 6 and B drive plate 7 to drive the square ring 8 to slide towards each other along the surface of the fixed plate 1. The support frame 9 is linked to the positioning plate 11 to clamp the edge of the glass. At the same time, the air pump 17 inflates the elastic airbag 13 in the embedded groove 12 through the air inflating pipe 16 and the connector 15 to expand and seal the gap, thus completing the negative pressure detection.

[0036] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A negative pressure testing fixture for the edge sealing of laminated glass, comprising a fixing plate (1), characterized in that: The bottom two sides of the fixed plate (1) are fixedly connected to the base (2) in an axially symmetrical manner. The fixed plate (1) is fixedly connected to one side of each end of the fixed plate (1) and the connecting plate (3) is provided with a rotating wheel (4). One end of the rotating wheel (4) passes through the inside of the connecting plate (3) and is fixedly connected to a positive and negative threaded rod (5). The other end of the positive and negative threaded rod (5) is rotatably connected to the surface of another connecting plate (3) through a bearing. One side of the surface of the positive and negative threaded rod (5) is threadedly connected to a drive plate A (6) and the other side of its surface is threadedly connected to a drive plate B (7). One side of the drive plate A (6) and the drive plate B (7) is fixedly connected to a square ring (8) and the square ring (8) is slidably connected to the surface of the fixed plate (1). The top of the square ring (8) is fixedly connected to a support frame (9). A connecting block (10) is fixedly connected to one side of the top of the support frame (9). A positioning plate (11) is fixedly connected to one side of the connecting block (10). An embedding groove (12) is provided on the edge of the surface of the positioning plate (11). An elastic airbag (13) is provided inside the embedding groove (12). A connecting pipe (14) is connected through one side of the back of the elastic airbag (13). One end of the connecting pipe (14) passes through the interior of the positioning plate (11) and is connected to a connector (15). One end of the connector (15) is connected to an inflation pipe (16). One end of the inflation pipe (16) is connected to an air pump (17).

2. The negative pressure testing fixture for the edge sealing of laminated glass according to claim 1, characterized in that: The two sections of the positive and negative threaded rod (5) have opposite thread directions, and the A drive plate (6) and B drive plate (7) are respectively matched with the corresponding thread sections.

3. The negative pressure testing fixture for the edge sealing of laminated glass according to claim 1, characterized in that: The inner side of the square ring (8) is provided with a guide groove, and the surface of the fixing plate (1) is provided with a convex rail that matches the guide groove.

4. The negative pressure testing fixture for the edge sealing of laminated glass according to claim 1, characterized in that: The elastic airbag (13) is circumferentially distributed around the positioning plate (11), and the depth of the embedded groove (12) is greater than the thickness of the elastic airbag (13) in its uninflated state.

5. The negative pressure testing fixture for the edge sealing of laminated glass according to claim 1, characterized in that: The connecting pipe (14) is a metal corrugated pipe structure, and the inflation pipe (16) is a pressure-resistant rubber hose.

6. The negative pressure testing fixture for the edge sealing of laminated glass according to claim 1, characterized in that: The support frame (9) is trapezoidal in shape, and the connecting block (10) is welded to the end of the support frame (9).

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