A type of insulating glass spacer

By incorporating an openable door and an inflation mechanism within the spacer of the insulating glass unit, the desiccant can be replaced and the cavity gas can be maintained. This solves the problems of condensation and fogging caused by desiccant saturation, ensuring the long-term light transmittance and heat insulation performance of the insulating glass unit.

CN224282395UActive Publication Date: 2026-05-26ANHUI SHENGMU GLASS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI SHENGMU GLASS CO LTD
Filing Date
2025-07-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

During use, the desiccant in existing insulating glass spacers can become depleted due to aging of the sealant or micro-cracks, allowing moisture to seep in and effectively control the humidity of the cavity. This results in condensation, fogging, and reduced light transmittance and thermal insulation performance.

Method used

A spacer bar for insulating glass was designed with an internal groove and an openable door structure, and equipped with an opening and closing mechanism and an inflation mechanism. This allows operators to safely and conveniently replace the desiccant when it is saturated, and maintain a dry environment inside the cavity through the inflation mechanism.

Benefits of technology

By regularly replacing the desiccant and filling it with inert gas, a dry environment is maintained for the insulating glass, preventing condensation and fogging, and improving its service life and the stability of its thermal insulation performance.

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Abstract

This utility model relates to the field of insulating glass spacer technology, specifically an insulating glass spacer, including a spacer and an opening / closing door rotatably mounted on the spacer. The spacer has an internal groove and two sets of corresponding channels. The spacer has an opening / closing mechanism for opening or closing the opening / closing door. The opening / closing mechanism includes two sets of slides slidably mounted within the spacer, both sets of slides being slidably connected to the spacer. Each set of slides has a fixed insert rod, and the two insert rods are movably engaged with the corresponding opening / closing door. By setting an internal groove and a corresponding opening / closing door structure inside the spacer, and designing a dedicated opening / closing mechanism, when the desiccant pre-filled in the internal groove becomes saturated due to long-term moisture absorption and becomes ineffective, the operator can safely and conveniently open the opening / closing door by operating the opening / closing mechanism, such as pulling a metal rod to drive the slides and insert rods, to replace the ineffective desiccant.
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Description

Technical Field

[0001] This utility model relates to the technical field of insulating glass spacers, specifically to an insulating glass spacer. Background Technology

[0002] Insulating glass, as a highly efficient and energy-saving building material, is widely used in building doors, windows, and curtain walls due to its excellent heat insulation and sound insulation properties. Its core structure consists of two or more glass panes separated by a spacer, and double-sealed around the perimeter with sealant (usually butyl sealant and silicone / polysulfide sealant) to form a dry, still air (or inert gas) cavity. The spacer is a key skeletal component of the insulating glass cavity, ensuring that the cavity thickness is uniform. The spacer is usually filled with a desiccant to absorb trace amounts of moisture that may seep into the cavity and through the sealant edges, preventing condensation and failure at low temperatures.

[0003] Existing spacers generally adopt a completely closed structure. The desiccant is pre-filled and permanently sealed in the channel or cavity inside the spacer during the spacer production process. Once the insulated glass is in use, due to factors such as sealant aging and micro-cracks, moisture slowly seeps into the cavity. The desiccant will gradually become saturated. When its adsorption capacity is exhausted, it will no longer be able to effectively control the humidity of the cavity, eventually leading to condensation and fogging inside the insulated glass and failure, which seriously affects its light transmittance, aesthetics and thermal insulation performance. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a spacer bar for insulating glass, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a spacer bar for insulating glass, comprising a spacer bar and an opening and closing door rotatably mounted on the spacer bar, wherein the spacer bar has an internal groove, and the opening and closing door is correspondingly arranged with the internal groove, the spacer bar has two sets of corresponding channels, the spacer bar is provided with an opening and closing mechanism for opening or closing the opening and closing door, and an inflation mechanism is provided in the channel.

[0008] The opening and closing mechanism includes two sets of slides slidably installed in the spacer. Both sets of slides are slidably connected to the spacer. Each set of slides is fixedly mounted with a plug rod, and the plug rods are movably engaged with the corresponding opening and closing doors. Each set of plug rods is fitted with a first spring, and the two ends of the first springs are fixedly connected to the plug rods and the spacer, respectively. Each set of slides is fixedly mounted with a first rack, and a first gear is provided between the two sets of first racks. The first gear meshes with the two sets of first racks, and the first gear is rotatably connected to the spacer through a mounting shaft. A first torsion spring is fitted on the mounting shaft, and the two ends of the first torsion spring are fixedly connected to the first gear and the spacer, respectively. The two sets of slides are centrally symmetrical about the mounting shaft.

[0009] Preferably, two sets of slide rods corresponding to the slide are fixedly installed inside the spacer, and the slide is slidably connected to the corresponding slide rod. A first bevel gear is sleeved on the mounting shaft, and a handle is rotatably installed inside the spacer, with the handle being perpendicular to the mounting shaft.

[0010] Preferably, the slide bar is fitted with two sets of symmetrically distributed second springs, and the two ends of the two sets of second springs are fixedly connected to the slider and the spacer, respectively.

[0011] Preferably, a second bevel gear is fitted onto the handle, and the second bevel gear meshes with the first bevel gear.

[0012] Preferably, the inflation mechanism includes an installation tube fixedly installed in the channel, and a fixing frame is fixedly installed inside the installation tube. A piston is slidably sleeved on the fixing frame, and a retaining ring is fixedly installed inside the installation tube.

[0013] Preferably, the mounting tube has a groove, and the piston is slidably connected to the mounting tube through the groove.

[0014] Preferably, two sets of symmetrically distributed third springs are sleeved on the fixing frame, and the two ends of the third springs are fixedly connected to the piston and the fixing frame respectively, and the piston is movably engaged with the retaining ring.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a spacer for insulating glass, which has the following advantages:

[0017] By incorporating an internal groove and a corresponding openable door structure within the spacer bar, along with a dedicated opening and closing mechanism, this system effectively replaces the desiccant when the pre-filled desiccant in the internal groove becomes saturated due to long-term moisture absorption. Operators can safely and conveniently open the door by operating the opening and closing mechanism, such as pulling a metal lever to drive the slide and insert rod, thus fundamentally overcoming the fatal flaw of existing closed-type spacer bar desiccant systems that require single-use and cannot be replaced. By regularly replacing the desiccant, a dry environment can always be maintained inside the spacer, effectively preventing condensation and fogging in the insulating glass cavity due to excessive humidity. This greatly improves the service life and long-term reliability of the insulating glass. The gas filling mechanism integrated inside the spacer, including the installation tube, piston, and spring, is connected to the channel. After replacing the desiccant and closing the door, or as part of regular maintenance, the gas filling mechanism can be used to inject dry gas, such as inert gas, into the insulating glass cavity or the built-in groove, or to replace moisture. This helps to quickly restore and maintain the low humidity and specific gas atmosphere inside the cavity, ensuring the long-term stability of the insulating glass's excellent light transmission, aesthetics, and thermal insulation performance. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of a partially disassembled structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the opening and closing mechanism of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the diagram;

[0023] Figure 5 This is a schematic diagram of the inflation mechanism of this utility model.

[0024] In the diagram: 1. Spacer bar; 2. Door; 3. Passageway; 4. Internal groove; 5. Opening and closing mechanism; 501. Slide; 502. Insert rod; 503. First spring; 504. First rack; 505. First gear; 506. Mounting shaft; 507. First torsion spring; 508. Slide rod; 509. Second spring; 510. First bevel gear; 511. Handle; 512. Second bevel gear; 6. Inflation mechanism; 601. Mounting tube; 602. Fixing frame; 603. Slide groove; 604. Piston; 605. Third spring; 606. Retaining ring. Detailed Implementation

[0025] 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.

[0026] Figures 1-5 In one embodiment of this utility model, a spacer for insulating glass includes a spacer 1 and an opening / closing door 2 rotatably mounted on the spacer 1. The spacer 1 has an internal groove 4, and the opening / closing door 2 is correspondingly positioned within the internal groove 4. Two sets of corresponding channels 3 are provided on the spacer 1. An opening / closing mechanism 5 for opening or closing the opening / closing door 2 is provided on the spacer 1. An inflation mechanism 6 is provided within each channel 3. The opening / closing mechanism 5 includes two sets of slides 501 slidably mounted within the spacer 1. Both sets of slides 501 are slidably connected to the spacer 1. Insert rods 502 are fixedly mounted on both sets of slides 501, and the two sets of insert rods 502 are movably engaged with the corresponding opening / closing door 2. A first spring 503 is sleeved on each set of insert rods 502. The first spring 503 is fixedly connected to the insert rod 502 and the spacer 1 at both ends. A first rack 504 is fixedly installed on each of the two sets of slides 501. A first gear 505 is provided between the two sets of first racks 504, and the first gear 505 meshes with each of the two sets of first racks 504. The first gear 505 is rotatably connected to the spacer 1 via a mounting shaft 506. A first torsion spring 507 is sleeved on the mounting shaft 506, and both ends of the first torsion spring 507 are fixedly connected to the first gear 505 and the spacer 1, respectively. The two sets of slides 501 are centrally symmetrically distributed about the mounting shaft 506. An internal groove 4 and a corresponding openable door 2 are provided inside the spacer 1, and a dedicated opening and closing mechanism 5 is designed. When the desiccant pre-filled in the internal groove 4 becomes saturated due to long-term adsorption of moisture and fails, the operator can safely and conveniently open the door 2 by operating the opening and closing mechanism 5, such as by pulling the metal rod 517 to drive the slide 501 and the insert rod 502. This makes it possible to replace the expired desiccant, fundamentally overcoming the fatal flaw of existing closed spacer 1 desiccant that is disposable and cannot be replaced. By regularly replacing the desiccant, a dry environment can always be maintained inside the spacer 1, effectively preventing condensation and fogging in the insulating glass cavity due to excessive humidity, greatly improving the service life and long-term reliability of the insulating glass. The gas filling mechanism 6 integrated inside the spacer 1, namely the installation tube 601, piston 604, spring, etc., is connected to the channel 3. After replacing the desiccant and closing the opening and closing door 2, or as part of regular maintenance, the gas filling mechanism 6 can be operated to inject dry gas, such as inert gas, into the insulating glass cavity or the built-in groove 4, or to replace moisture. This helps to quickly restore and maintain the low humidity and specific gas atmosphere inside the cavity, ensuring the long-term stability of the insulating glass's excellent light transmittance, aesthetics, and thermal insulation performance.

[0027] In this embodiment, reference Figure 3 , Figure 4 As shown, two sets of slide rods 508 corresponding to the slide 501 are fixedly installed inside the spacer 1, and the slide 501 and the corresponding slide rods 508 are slidably sleeved. Two sets of symmetrically distributed second springs 509 are sleeved on the slide rods 508, and the two ends of the two sets of second springs 509 are fixedly connected to the slider and the spacer 1 respectively. A first bevel gear 510 is sleeved on the mounting shaft 506. A handle 511 is rotatably installed inside the spacer 1, and a second bevel gear 512 is sleeved on the handle 511. The handle 511 is perpendicular to the mounting shaft 506, and the second bevel gear 512 is meshed with the first bevel gear 510. The opening and closing door 2 is closed under the action of the opening and closing mechanism 5. The built-in groove 4 is pre-filled with desiccant and isolated from the hollow glass cavity. When it is necessary to replace the saturated and ineffective desiccant in the built-in groove 4, the operator turns the handle 511 to drive the second bevel gear 512 to cooperate with the first bevel gear 510, so that the mounting shaft 506 drives the first bevel gear 510. When 505 starts to rotate, since the first gear 505 meshes with the two sets of first racks 504 and the two sets of slides 501 are symmetrically distributed about the center of the mounting shaft 506, the rotation of the first gear 505 will drive the two sets of first racks 504 to drive the corresponding slides 501 to overcome the tension of the first spring 503 and slide synchronously and in opposite directions along the slide bar 508. The movement of the slides 501 will drive the plug 502 fixed on it to exit from the locking position of the opening and closing door 2. After the plug 502 exits, the opening and closing door 2 loses its locking force, and the operator can manually open the opening and closing door 2 to expose the internal groove 4, so that the expired desiccant can be taken out and new desiccant can be filled. After replacing the new desiccant, the operator pushes the opening and closing door 2 back to its original position and closes the entrance of the internal groove 4. Under the action of the first spring 503, the second spring 509 and the first torsion spring 507, the two sets of slides 501 drive the two sets of plugs 502 to slide inward synchronously and lock with the opening and closing plate to complete the closing of the opening and closing plate.

[0028] In this embodiment, reference Figure 5As shown, the inflation mechanism 6 includes an installation tube 601 fixedly installed in the channel 3, and a fixing frame 602 fixedly installed inside the installation tube 601. A sliding groove 603 is provided inside the installation tube 601. A piston 604 is slidably sleeved on the fixing frame 602, and the piston 604 is slidably connected to the installation tube 601 through the sliding groove 603. A retaining ring 606 is fixedly installed inside the installation tube 601. Two sets of symmetrically distributed third springs 605 are sleeved on the fixing frame 602, and the two ends of the third springs 605 are fixed to the piston 604 and the fixing frame 602, respectively. The piston 604 is connected to the retaining ring 606. When the piston 604 is pressed down in the upper mounting tube 601, there is a gap between the piston 604 and the mounting tube 601. Inert gas can be injected between the two sets of insulating glass through the mounting tube 601. The upper and lower mounting tubes 601 have the same layout. Therefore, while the inert gas is being injected, the gas originally present in the hollow area between the two sets of glass is squeezed by the piston 604 from the lower mounting tube 601, causing the piston 604 to move away from the retaining ring 606 and be discharged until the space between the two sets of insulating glass is completely filled with inert gas.

[0029] In this embodiment, the opening and closing door 2 is closed under the action of the opening and closing mechanism 5. The built-in groove 4 is pre-filled with desiccant and isolated from the hollow glass cavity. When it is necessary to replace the saturated and ineffective desiccant in the built-in groove 4, the operator turns the handle 511 to drive the second bevel gear 512 to engage with the first bevel gear 510, causing the mounting shaft 506 to drive the first gear 505 to start rotating. Since the first gear 505 meshes with the two sets of first racks 504, and the two sets of slides 501 are symmetrically distributed about the center of the mounting shaft 506, the rotation of the first gear 505 will drive the two sets of first racks 504 to drive the corresponding slides 501 to overcome the tension of the first spring 503 and slide synchronously and in opposite directions along the slide rod 508. The movement of the slides 501 will cause the plug 502 fixed on it to retract from the locking position of the opening and closing door 2. After the plug 502 retracts, the opening and closing door 2 loses its locking force, and the operator can manually open it. The opening and closing door 2 exposes the internal slot 4, allowing the expired desiccant to be removed and replaced with a new one. After replacing the desiccant, the operator pushes the opening and closing door 2 back to its original position, closing the inlet of the internal slot 4. Under the action of the first spring 503, the second spring 509, and the first torsion spring 507, the two sets of slides 501 drive the two sets of insert rods 502 to slide inward synchronously and engage with the opening and closing plate, completing the closure of the opening and closing plate. When the piston 604 is pressed down in the upper mounting tube 601, there is a gap between the piston 604 and the mounting tube 601. Inert gas can be injected between the two sets of insulating glass through the mounting tube 601. The upper and lower sets of mounting tubes 601 have the same layout. Therefore, while the inert gas is being injected, the gas originally present in the hollow area between the two sets of glass is squeezed by the piston 604 from the lower mounting tube 601, causing the piston 604 to move away from the retaining ring 606 and be discharged until the space between the two sets of insulating glass is completely filled with inert gas.

[0030] 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.

[0031] It should be noted that 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.

[0032] 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 hollow glass spacer comprising a spacer (1) and a swing door (2) rotatably mounted on the spacer (1), characterized in that: The spacer bar (1) has an internal groove (4) and the opening and closing door (2) is correspondingly set with the internal groove (4). The spacer bar (1) has two sets of corresponding channels (3). The spacer bar (1) has an opening and closing mechanism (5) for opening or closing the opening and closing door (2). The channel (3) has an inflation mechanism (6). The opening and closing mechanism (5) includes two sets of slides (501) slidably installed in the spacer (1). Both sets of slides (501) are slidably connected to the spacer (1). Each set of slides (501) is fixedly equipped with a plug rod (502), and the two sets of plug rods (502) are movably engaged with the corresponding opening and closing door (2). Each set of plug rods (502) is fitted with a first spring (503). The two ends of the first spring (503) are fixedly connected to the plug rod (502) and the spacer (1) respectively. Each set of slides (501) is fixedly equipped with a first spring (503). A rack (504) is provided, and a first gear (505) is provided between the two sets of first racks (504). The first gear (505) is meshed with the two sets of first racks (504) respectively. The first gear (505) is rotatably connected to the spacer (1) through the mounting shaft (506). A first torsion spring (507) is sleeved on the mounting shaft (506). The two ends of the first torsion spring (507) are fixedly connected to the first gear (505) and the spacer (1) respectively. The two sets of slides (501) are centrally symmetrical about the mounting shaft (506).

2. A hollow glass spacer according to claim 1, characterized in that: Two sets of slide rods (508) corresponding to the slide frame (501) are fixedly installed inside the spacer (1), and the slide frame (501) and the corresponding slide rods (508) are slidably connected. A handle (511) is rotatably installed inside the spacer (1). The handle (511) is perpendicular to the mounting shaft (506), and a first bevel gear (510) is sleeved on the mounting shaft (506).

3. A hollow glass spacer according to claim 2, characterized in that: Two sets of symmetrically distributed second springs (509) are sleeved on the slide bar (508), and the two ends of the two sets of second springs (509) are fixedly connected to the slider and the spacer (1) respectively.

4. A hollow glass spacer as defined in claim 2, wherein: A second bevel gear (512) is fitted onto the handle (511), and the second bevel gear (512) meshes with the first bevel gear (510).

5. The hollow glass spacer of claim 1, wherein: The inflation mechanism (6) includes an installation tube (601) fixedly installed in the channel (3), and a fixing frame (602) is fixedly installed in the installation tube (601). A piston (604) is slidably sleeved on the fixing frame (602), and a retaining ring (606) is fixedly installed in the installation tube (601).

6. A hollow glass spacer according to claim 5, characterized in that: The mounting tube (601) has a groove (603) inside, and the piston (604) is slidably connected to the mounting tube (601) through the groove (603).

7. A hollow glass spacer as defined in claim 5, wherein: Two sets of symmetrically distributed third springs (605) are sleeved on the fixed frame (602), and the two ends of the third springs (605) are fixedly connected to the piston (604) and the fixed frame (602) respectively. The piston (604) is movably engaged with the retaining ring (606).