Goggles and injection mold thereof

Abstract

The utility model belongs to the technical field of goggles, in particular to a pair of goggles and an injection mold thereof, which comprises a goggle frame and a face frame slot which is arranged on the goggle frame and is used for assembling a face frame, a plurality of assembling magnets are circumferentially distributed on the goggle frame around the edge of the face frame slot, and the assembling magnets and the goggle frame form an integral structure through secondary injection molding. And magnetic attraction windows which are in one-to-one correspondence with the assembling magnets and are used for communicating the magnetic attraction surfaces at the front ends of the assembling magnets with the surface frame slot positions are formed in the slot bottom surfaces of the surface frame slot positions. The glasses frame is simple in structure, reasonable in design and low in cost, and the assembling magnets and the glasses frame form an integrated structure in a secondary injection molding mode so as to ensure that the assembling magnets and the glasses frame can be stably and firmly connected.

Description

Technical field:

[0001] The utility model belongs to the technical field of goggles, in particular to a pair of goggles and an injection mold thereof. Background technology:

[0002] A pair of goggles disclosed in an existing Chinese utility model patent (authorization announcement number CN213552863U) comprises a frame, a face frame and a lens, wherein the edges of the frame and the face frame are fitted with hole-shaped or groove-shaped magnet mounting positions corresponding to each other, and the magnet mounting positions of the frame and the face frame are provided with magnet blocks with different magnetic properties, the lens is fixedly connected to the face frame, the two side edges of the face frame are provided with fixed key positions, the two sides of the frame are symmetrically provided with elastic buckles, the elastic buckles are fixedly connected through fixing grooves provided on the upper and lower end surfaces of the two sides of the frame, the elastic buckles are provided with key slots corresponding to the fixed key positions, and the key slots are provided with lock buckles.

[0003] That is, the frame and the face frame are detachably assembled by a magnet block fixed at the magnet mounting position. In order to firmly mount the magnet block in the magnet mounting position, existing technicians usually apply glue to firmly fix the magnet block in the magnet mounting position. However, after a period of actual use, the magnet block is easily separated and falls from the magnet mounting position due to the failure of the glue, which in turn causes the failure of the connection between the frame and the face frame, affecting the overall use of the goggles. Summary of the invention:

[0004] The utility model aims to provide a pair of goggles and an injection mold thereof, which use a secondary injection molding method to form an integrated structure with an assembling magnet and a frame, so as to ensure that the connection between the assembling magnet and the frame is stable and firm.

[0005] The utility model is achieved in this way:

[0006] A pair of goggles comprises a frame and a face frame slot which is provided on the frame and for assembling a face frame. The frame is provided with a plurality of assembly magnets which are distributed circumferentially around the edge of the face frame slot. The assembly magnets are formed into an integrated structure with the frame through secondary injection molding. A magnetic attraction window which corresponds to the assembly magnets one by one and allows the front magnetic attraction surface of the magnetic attraction window to communicate with the face frame slot is provided on the bottom surface of the face frame slot.

[0007] In the above-mentioned goggles, the longitudinal section of the mounting magnet is a trapezoidal structure that is narrow at the front and wide at the back, and the left and right side portions of the mounting magnet are fixedly embedded in the frame.

[0008] In the above-mentioned goggles, the magnetic window is centrally arranged on the front end magnetic surface of the mounting magnet, and the opening area of ​​the magnetic window is smaller than the area of ​​the front end magnetic surface of the mounting magnet.

[0009] In the above-mentioned goggles, the depth of the magnetic window is 0.3-0.5 mm.

[0010] Another object of the utility model is to provide an injection mold for any of the above-mentioned goggles, comprising an upper mold plate and a lower mold plate, an injection mold cavity for injection molding the frame is formed between the upper mold plate and the lower mold plate, the upper mold plate located in the injection mold cavity is provided with an avoidance boss portion corresponding one-to-one to the assembly magnet, the lower mold plate located in the injection mold cavity is provided with a positioning groove corresponding one-to-one to the assembly magnet, the top surface of the assembly magnet abuts and fits against the end surface of the avoidance boss portion, and the avoidance boss portion forms the magnetic suction window, and the bottom of the assembly magnet is provided with a positioning protrusion that can be inserted into the positioning groove.

[0011] The outstanding advantages of the utility model compared with the prior art are:

[0012] The utility model has the advantages of simple structure, reasonable design and low cost, and adopts a secondary injection molding method to form an integrated structure with the assembly magnet and the mirror frame, so as to ensure that the connection between the assembly magnet and the mirror frame can be stable and firm. Description of the drawings:

[0013] Figure 1 It is a stereogram of the mirror frame of the utility model;

[0014] Figure 2 It is a stereogram of the assembled magnet of the utility model;

[0015] Figure 3 It is an exploded view of the injection mold of the utility model;

[0016] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0017] Figure 5 It is a three-dimensional diagram of the upper template of the utility model.

[0018] In the figure: 1. Mirror frame; 2. Face frame slot; 3. Mounting magnet; 4. Magnetic window; 5. Upper template; 6. Lower template; 7. Avoidance boss; 8. Positioning slot; 9. Positioning protrusion. Specific implementation method:

[0019] The present invention is further described below with reference to specific embodiments. Figure 1 —5:

[0020] A pair of goggles comprises a frame 1 and a face frame slot 2 which is provided on the frame 1 and for assembling a face frame. The frame 1 is provided with a plurality of assembly magnets 3 which are distributed circumferentially around the edge of the face frame slot 2. The assembly magnets 3 are formed into an integrated structure with the frame 1 through secondary injection molding. A magnetic window 4 which corresponds to the assembly magnets 3 one by one and allows the front magnetic surface of the magnetic window to communicate with the face frame slot 2 is provided on the bottom surface of the face frame slot 2.

[0021] The utility model has a simple structure, reasonable design and low cost, and adopts a secondary injection molding method to form an integrated structure with the assembly magnet 3 and the lens frame 1 to ensure that the connection between the assembly magnet 3 and the lens frame 1 is stable and firm.

[0022] Furthermore, in order to enable the frame 1 to be wrapped around the mounting magnet 3 by secondary injection molding to ensure a firm connection between the two, the longitudinal section of the mounting magnet 3 is a trapezoidal structure that is narrow in the front and wide in the back, and the left and right sides of the mounting magnet 3 are fixedly embedded in the frame 1, wherein the mounting magnet 3 with a trapezoidal structure can have a larger contact area with the frame 1.

[0023] And when the assembly magnet 3 is adsorbed by the assembly magnet 3 of the face frame slot 2 through magnetic force, the assembly magnet 3 can be provided with sufficient supporting strength, and the magnetic attraction window 4 is centrally arranged on the front end magnetic attraction surface of the assembly magnet 3, and the opening area of ​​the magnetic attraction window 4 is smaller than the front end magnetic attraction surface area of ​​the assembly magnet 3.

[0024] At the same time, in order to ensure that the assembly magnet 3 can be stably adsorbed with the assembly magnet 3 of the face frame slot 2 and prevent the high-temperature injection molding material from producing excessive demagnetization effect on the front magnetic surface of the assembly magnet 3, the depth of the magnetic window 4 is 0.3-0.5mm.

[0025] Another object of the utility model is to provide an injection mold for any of the above-mentioned goggles, including an upper mold plate 5 and a lower mold plate 6, an injection mold cavity for injection molding the frame 1 is formed between the upper mold plate 5 and the lower mold plate 6, the upper mold plate 5 located in the injection mold cavity is provided with a relief boss portion 7 corresponding to the assembly magnet 3, and the lower mold plate 6 located in the injection mold cavity is provided with a positioning slot 8 corresponding to the assembly magnet 3, the top surface of the assembly magnet 3 is against and fits with the end surface of the relief boss portion 7, and the relief boss portion 7 forms the magnetic window 4, and the bottom of the assembly magnet 3 is provided with a positioning protrusion 9 that can be inserted into the positioning slot 8. Among them, the height of the relief boss portion 7 is consistent with the depth of the magnetic window 4.

[0026] The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model. Therefore, any equivalent changes made based on the shape, structure, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A pair of goggles, comprising a frame (1), and a face frame slot (2) provided on the frame (1) for assembling a face frame, characterized in that: The mirror frame (1) is provided with a plurality of assembly magnets (3) distributed circumferentially around the edge of the face frame slot (2); the assembly magnets (3) are formed into an integrated structure with the mirror frame (1) through secondary injection molding; and a magnetic attraction window (4) corresponding to the assembly magnets (3) and allowing the front magnetic attraction surface of the assembly magnets (3) to communicate with the face frame slot (2) is provided on the bottom surface of the groove of the face frame slot (2).

2. The goggles according to claim 1, characterized in that: The longitudinal section of the assembly magnet (3) is a trapezoidal structure that is narrow at the front and wide at the rear. The left and right side portions of the assembly magnet (3) are fixedly embedded in the mirror frame (1).

3. The goggles according to claim 1, characterized in that: The magnetic attraction window (4) is centrally arranged on the front end magnetic attraction surface of the assembly magnet (3), and the opening area of ​​the magnetic attraction window (4) is smaller than the area of ​​the front end magnetic attraction surface of the assembly magnet (3).

4. The goggles according to claim 3, characterized in that: The depth of the magnetic window (4) is 0.3-0.5 mm.

5. An injection mold for the goggles according to any one of claims 1 to 4, characterized in that: The invention comprises an upper template (5) and a lower template (6), wherein an injection molding cavity for molding the mirror frame (1) is formed between the upper template (5) and the lower template (6), wherein the upper template (5) located in the injection molding cavity is provided with an avoidance boss portion (7) corresponding one-to-one to the assembly magnet (3), and the lower template (6) located in the injection molding cavity is provided with a positioning groove (8) corresponding one-to-one to the assembly magnet (3), the top surface of the assembly magnet (3) abuts against and fits with the end surface of the avoidance boss portion (7), and the avoidance boss portion (7) forms the magnetic suction window (4), and the bottom of the assembly magnet (3) is provided with a positioning protrusion (9) that can be inserted into the positioning groove (8).

Images