One-way plugging device for cavity glue injection

Abstract

The utility model discloses a one-way plugging device for cavity glue injection. The one-way plugging device comprises a shell, and a circulation cavity channel is arranged in the shell in a penetrating manner; the circulation cavity channel comprises a glue inlet cavity channel, a divergent cavity channel and a glue outlet cavity channel which are sequentially communicated with one another; a sealing ball for blocking the glue inlet end of the divergent cavity channel after glue injection is completed is arranged in the divergent cavity channel and the glue outlet cavity channel in a sliding manner; one end of a glue outlet of the glue outlet cavity channel is provided with a plugging piece which is used for preventing the sealing ball from falling out of the circulation cavity channel and ensuring smooth circulation of the cavity channel; the glue injection device is simple in structure and convenient to operate, the cavity is sealed through the cooperation of the sealing ball, the shell and the plugging piece, the situation that glue liquid in the cavity flows back and overflows after glue injection, and the glue injection effect is affected is avoided, meanwhile, the divergent cavity channel is formed in the shell, and the diameter of the glue inlet end of the divergent cavity channel is smaller than that of the sealing ball; and the glue inlet end of the divergent cavity channel is conveniently plugged by the sealing ball to realize sealing, so that the uniformity of filling in the cavity after glue injection is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plugging device technical field, concretely relates to a one-way plugging device for cavity glue injection. BACKGROUND

[0002] In aluminum alloy doors and windows, there are many small gaps, such as 45° angle joint seams when doors and windows are assembled, and small gaps at the connection between vertical columns (center columns) and cross supports, and many small gaps are also produced after screwing and riveting, which should be usually sealed by injecting glue into the cavity to avoid rainwater from entering the cavity and causing leakage of doors and windows.

[0003] When injecting glue into the cavity, a glue injection hole is usually opened on the cavity for the glue gun nozzle to pass through and inject glue into the cavity, but the glue injected into the cavity is prone to flowing out of the opened glue injection hole before drying, resulting in uneven filling of the cavity and affecting the glue injection effect. UTILITY MODEL CONTENTS

[0004] The utility model needs to solve the technical problem of providing a one-way plugging device for cavity glue injection, which can seal the cavity after glue injection is completed to avoid the influence of un-solidified glue on the glue injection effect.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is as follows.

[0006] A one-way plugging device for cavity glue injection, comprising a shell, a flow-through cavity is arranged inside the shell; the flow-through cavity comprises a glue inlet cavity, a gradually expanding cavity and a glue outlet cavity arranged in sequence; a sealing ball is arranged in the gradually expanding cavity and the glue outlet cavity to seal the glue inlet end of the gradually expanding cavity after glue injection is completed to prevent backflow of glue; a plugging piece is installed at one end of the glue outlet of the glue outlet cavity to prevent the sealing ball from falling out of the flow-through cavity and ensure smooth flow through the cavity.

[0007] The diameter of the sealing ball is greater than the diameter of the glue inlet end of the gradually expanding cavity and less than the diameter of the glue outlet end of the gradually expanding cavity.

[0008] The glue inlet end of the plugging piece near the sealing ball is provided with a cross-shaped glue inlet opening to block the sealing ball, and a gap is formed between the cross-shaped glue inlet opening and the sealing ball for glue to flow through during glue injection.

[0009] The length of the cross-shaped glue inlet opening is greater than the diameter of the sealing ball.

[0010] The bottom of the peripheral side wall of the plugging piece is symmetrically provided with two connecting side plates, and a bayonet is formed on the side wall of the shell to clamp the connecting side plates.

[0011] The bottom of the connecting side plate is an inclined surface arranged downward to facilitate the installation of the sealing member into the glue outlet channel.

[0012] The connecting side plate is made of rubber material with elasticity.

[0013] Thanks to the above technical solutions, the technical progress achieved by the utility model is as follows.

[0014] The utility model provides a one -way plugging device for cavity injection, simple structure, convenient operation realizes the sealing to cavity through the cooperation of sealing ball, shell and sealing member, avoids the backflow of glue liquid in cavity after injection, influences injection effect, simultaneously, through setting up gradually expanding channel in the shell, and gradually expanding channel glue inlet diameter is less than the diameter of sealing ball, it is convenient for sealing ball to block gradually expanding channel's glue inlet and realize sealing, guarantees the uniformity of filling in cavity after injection, improves injection sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the specific structure schematic diagram of the utility model;

[0016] Figure 2 It is the front view of the utility model;

[0017] Figure 3 It is the internal section view of the utility model;

[0018] Figure 4 It is the plan view of the sealing member of the utility model;

[0019] Figure 5 It is the front view of the sealing member of the utility model.

[0020] Wherein: 1. shell, 2. sealing member, 3. sealing ball, 4. bayonet, 5. glue inlet, 6. glue inlet channel, 7. gradually expanding channel, 8. glue outlet, 9. cross glue inlet, 10. connecting side plate, 11. glue outlet channel. DETAILED DESCRIPTION

[0021] The utility model will be further explained in detail in combination with the drawings and specific embodiment.

[0022] A one -way plugging device for cavity injection, as shown in Figures 1 to 5 It includes shell 1, and the through flow channel is arranged in the shell 1, and the through flow channel in the shell 1 includes glue inlet channel 6, gradually expanding channel 7 and glue outlet channel 11 sequentially communicated.

[0023] The glue inlet end of the gradually expanding cavity 7 is communicated with the glue outlet end of the glue inlet cavity 6, and the glue outlet end of the gradually expanding cavity 7 is communicated with the glue inlet end of the glue outlet cavity 11.

[0024] The glue outlet cavity 11 is internally slidably provided with a sealing ball 3, the diameter of the sealing ball 3 is greater than the diameter of the glue inlet end of the gradually expanding cavity 7 and is less than the diameter of the glue outlet end of the gradually expanding cavity 7.

[0025] After the glue injection is completed, the glue inlet end of the gradually expanding cavity 7 is blocked by the sealing ball 3 to form a blocking structure, so as to avoid the backflow and overflow of the glue in the cavity after the glue injection.

[0026] The glue outlet end of the glue outlet cavity 11 is provided with a blocking piece 2 for preventing the sealing ball 3 from falling out of the flow cavity.

[0027] The glue inlet end of the blocking piece 2 close to the sealing ball 3 is provided with a cross-shaped glue inlet 9 for blocking the sealing ball 3, and the length of the cross-shaped glue inlet 9 is greater than the diameter of the sealing ball 3.

[0028] During the glue injection, a gap is formed between the cross-shaped glue inlet 9 and the sealing ball 3, so as to facilitate the injection of the glue into the cavity from the gap, and meanwhile, the sealing ball 3 can be prevented from falling out of the flow cavity.

[0029] The bottom of the outer circumferential side wall of the blocking piece 2 is symmetrically provided with two connecting side plates 10, and the upper part of the shell 1 is provided with a bayonet 4 for clamping the connecting side plates 10, the connecting side plates 10 and the bayonet 4 are connected, so as to ensure the firm connection between the blocking piece 2 and the shell 1.

[0030] The cross section of the connecting side plate 10 is a right trapezoid, and the bottom of the connecting side plate 10 is a downwardly inclined inclined surface, so as to facilitate the installation of the blocking piece 2 into the glue outlet cavity 11.

[0031] The connecting side plate 10 is made of a rubber material with elasticity, and can be clamped with the bayonet 4 on the shell 1 after the blocking piece 2 is installed into the glue outlet cavity 11, so as to fix the blocking piece 2.

[0032] During the glue injection, the shell 1 is installed into the glue injection hole on the cavity, and the glue inlet 5 is ensured to be upwardly arranged, then the nozzle of the glue gun is inserted into the glue inlet channel 6 from the glue inlet 5 to start the glue injection, at this time, the sealing ball 3 is in contact with the cross-shaped glue inlet 9 on the blocking piece 2, and meanwhile, a gap is formed between the sealing ball 3 and the cross-shaped glue inlet 9 for the glue to pass through, the glue flows through the gap between the sealing ball 3 and the cross-shaped glue inlet 9 and enters the cavity.

[0033] After glue injection is completed, the glue gun is pulled out, at this time, the glue liquid in the cavity starts to solidify and expand, the sealing ball 3 floats upward under the action of gas pressure and contacts the glue inlet end of the gradually expanding cavity 7, since the diameter of the sealing ball 3 is greater than the diameter of the glue inlet end of the gradually expanding cavity 7, the sealing ball 3 blocks the glue inlet end of the gradually expanding cavity 7, avoids backflow of the glue liquid and overflow, and realizes sealing.

[0034] The utility model provides a kind of one-way plugging device for cavity glue injection, simple structure, easy to operate, the sealing of cavity is realized by the cooperation of sealing ball, shell and plugging piece, avoid the backflow of glue liquid in cavity after glue injection, influence glue injection effect, simultaneously, by setting gradually expanding cavity in shell, and gradually expanding cavity glue inlet end diameter is less than the diameter of sealing ball, it is convenient for sealing ball to block gradually expanding cavity glue inlet end and realize sealing, ensure the uniformity of filling in cavity after glue injection, improve glue injection sealing effect.

Claims

1. A one-way plugging device for cavity injection, characterized in that: The application relates to a glue injection device, which comprises a shell (1) internally provided with a flow-through cavity; the flow-through cavity comprises a glue inlet cavity (6), a gradually expanding cavity (7) and a glue outlet cavity (11) which are sequentially communicated; the gradually expanding cavity (7) and the glue outlet cavity (11) are internally slidably provided with a sealing ball (3) which is used for plugging the glue inlet end of the gradually expanding cavity (7) after glue injection to prevent glue backflow after glue injection; one end of a glue outlet (8) of the glue outlet cavity (11) is provided with a plugging piece (2) which prevents the sealing ball (3) from falling outside the flow-through cavity and ensures smooth flow-through of the cavity.

2. The one-way plugging device for cavity glue injection according to claim 1, characterized in that: The diameter of the sealing ball (3) is greater than that of the glue inlet end of the gradually expanding cavity (7) and smaller than that of the glue outlet end of the gradually expanding cavity (7).

3. The one-way plugging device for cavity glue injection according to claim 1, characterized in that: The glue inlet end of the plugging piece (2) close to the sealing ball (3) is provided with a cross-shaped glue inlet (9) which blocks the sealing ball (3) and has a gap between the cross-shaped glue inlet (9) and the sealing ball (3) for glue flow during glue injection.

4. The one-way plugging device for a cavity glue injection according to claim 3, characterized in that: The length of the cross-shaped glue inlet (9) is greater than the diameter of the sealing ball (3).

5. The one-way plugging device for cavity glue injection according to claim 1, characterized in that: The bottom of the outer circumferential side wall of the plugging piece (2) is symmetrically provided with two connecting side plates (10), and the side wall of the shell (1) is provided with a bayonet (4) which clamps the connecting side plates (10).

6. The one-way plugging device for a mold cavity according to claim 5, characterized in that: The bottom of the connecting side plate (10) is downwardly inclined to facilitate the installation of the plugging piece (2) into the glue outlet cavity (11), and the cross section of the connecting side plate (10) is a right trapezoid.

7. The one-way plugging device for a mold cavity according to claim 5, characterized in that: The connecting side plate (10) is made of elastic rubber.

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