Disc card structure and projector

Abstract

The utility model discloses a disc card structure and a projector, the disc card structure comprises an upper cover disc and a lower cover disc, the upper cover disc and the lower cover disc are detachably and fixedly connected, a film is clamped in an accommodating space formed between the upper cover disc and the lower cover disc, and the end face of the upper cover disc is provided with transmission teeth used for transmission. According to the utility model, the rubber sheet is arranged on the outer end face of the upper cover disc, so that the teeth are prevented from being exposed at the periphery of the rubber sheet disc, the whole surface is smoother, risks possibly encountered by children during use are reduced, and the safety coefficient of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of projection equipment, in particular to a disc card structure and a projection machine. Background Art

[0002] The cards in the card-insertion film story machine are disc-shaped, and the card disc can be movably plugged in and out of the host. The movably pluggable method facilitates the replacement of films to play different stories. The story machines currently on the market use separate cards and film discs or integrated films and cards. The separate film disc is fixed in the card, and the outer edge of the film disc has teeth that mesh with the motor gear in the main body to achieve rotation. As a replaceable film disc with teeth on the outer edge, it is relatively sharp for children's products, and the overall shape is not smooth enough, which leads to poor user experience during use. The integrated film disc combines the card and the film disc together, and the overall size is large and not portable enough for storage, and the cost of the film disc as a replacement increases. For this reason, we provide a disc card structure and a projector to solve the above problems. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a disc card structure and a projector.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A disc card structure comprises an upper cover disc and a lower cover disc, wherein the upper cover disc and the lower cover disc are detachably fixedly connected, a film is clamped in the accommodating space formed between the upper cover disc and the lower cover disc, and a transmission tooth for transmission is arranged on the end surface of the upper cover disc.

[0006] Preferably, the upper cover plate and the lower cover plate are detachably connected via a snap-fit ​​assembly, and the snap-fit ​​assembly comprises a first snap-fit ​​structure and a second snap-fit ​​structure, wherein the first snap-fit ​​structure is located at the edges of the two, and the second snap-fit ​​structure is located in the middle of the two.

[0007] Preferably, the first clamping structure comprises a plurality of first clamping blocks arranged at the upper edge of the side surface of the upper cover plate close to the lower cover plate, and the lower cover plate is provided with a first clamping groove adapted to the first clamping block;

[0008] The second clamping structure includes a plurality of second clamping blocks arranged on the side of the upper cover plate close to the lower cover plate, and the side of the lower cover plate is provided with a second clamping groove adapted to the second clamping block.

[0009] Preferably, a positioning structure is further provided between the upper cover plate and the lower cover plate, the positioning structure comprising a plurality of positioning posts integrally provided on the end surface of the upper cover plate close to the lower cover plate, and a positioning hole adapted to the positioning posts is provided on the end surface of the lower cover plate close to the upper cover plate;

[0010] It also includes a plurality of first positioning ribs integrally arranged at the end surface edge of the upper cover plate close to the lower cover plate, and a positioning groove matched with the positioning ribs is opened at the end surface edge of the lower cover plate close to the upper cover plate.

[0011] Preferably, the end surface of the lower cover plate facing away from the upper cover plate is provided with a receiving groove, the receiving groove is provided with code point paper, a plurality of protrusions are provided on the circumferential side wall of the receiving groove, and a plurality of grooves matching the protrusions are opened on the outer circumference of the code point paper.

[0012] Preferably, a magnetic mounting structure is also provided between the upper cover plate and the lower cover plate, and the magnetic mounting structure includes a convex ring arranged on the outer circumference of the center hole of the lower cover plate close to the direction of the upper cover plate, and a step hole is provided on the upper cover plate close to the center hole of the lower cover plate, and a first magnetic component is provided between the convex ring and the step hole when the upper cover plate is installed and matched with the lower cover plate.

[0013] The utility model also discloses a projector, including a casing, wherein a first mounting bracket and a second mounting bracket are fixedly installed inside the casing respectively, any of the above-mentioned disc card structures is arranged between the accommodating cavity formed between the first mounting bracket and the second mounting bracket, and a cover plate for closing or opening the accommodating cavity is arranged at the opening of the accommodating cavity.

[0014] Preferably, a driving structure for driving the disc card structure to rotate is provided on the second mounting bracket, and the driving structure includes a motor and a gear set fixedly mounted on the second mounting bracket, and the power output end of the motor is transmission-connected to the power input end of the gear set. A gear shaft is also rotatably mounted on the second mounting bracket, and a driven tooth for meshing transmission with the power output end of the gear set is fixedly provided on the outer surface of the gear shaft, and meshing transmission is performed with the power output end of the gear set through the driven tooth, and a driving tooth adapted to the transmission tooth is fixedly provided on the end face of the gear shaft facing the disc card structure.

[0015] Preferably, a spring is provided between the central hole of the gear shaft and the housing to cause the driving tooth to abut against the transmission tooth, and a second magnetic attraction component that is magnetically attracted to the first magnetic attraction component is provided inside the central hole of the gear shaft.

[0016] The utility model has the following advantages:

[0017] 1. The utility model sets the film on the outer end surface of the upper cover disc, thereby avoiding the teeth from being exposed at the outer circumference of the film disc, making the overall surface smoother, reducing the risks that children may encounter when using it, and improving the safety factor of the product.

[0018] 2. The positioning structure design between the upper cover plate and the lower cover plate of the utility model includes the cooperation between the first positioning protrusion and the first positioning hole, and the cooperation between the second positioning protrusion in the receiving groove and the second positioning hole, which ensures the precise positioning of the upper cover plate and the lower cover plate during assembly and installation of the code point paper, and improves the overall stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall assembly state of the card structure of the present utility model.

[0020] Figure 2 It is a schematic diagram of the card structure of the utility model in an exploded state.

[0021] Figure 3 This is a schematic structural diagram of the upper cover plate of the utility model from a first viewing angle.

[0022] Figure 4 This is a schematic structural diagram of the lower cover plate of the utility model from a first viewing angle.

[0023] Figure 5 This is a schematic structural diagram of the lower cover plate of the utility model from a second viewing angle.

[0024] Figure 6 This is a schematic structural diagram of the upper cover plate of the utility model from a second viewing angle.

[0025] Figure 7 It is a schematic diagram of the structure of the projector of the utility model.

[0026] Figure 8 It is a schematic diagram of the internal structure of the projector of the utility model.

[0027] In the figure, 1, upper cover plate; 2, lower cover plate; 3, film; 4, transmission gear; 5, code point paper; 6, first clamping structure; 61, first clamping block; 62, first clamping slot; 7, magnetic suction mounting structure; 71, convex ring; 72, step hole; 73, first magnetic suction member; 8, positioning structure; 81a, positioning column; 81b, positioning rib; 82a, positioning hole; 82b, positioning slot; 9, second clamping structure; 91, second clamping block; 92, second clamping slot; 10, accommodating groove; 11, protrusion; 12, groove; 13, housing; 14, first mounting bracket; 15, second mounting bracket; 16, cover plate; 17, driving structure; 171, motor; 172, gear set; 173, gear shaft; 174, driving tooth; 175, driven tooth; 18, second magnetic suction member; 19, spring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1 — Figure 8 The embodiment shown.

[0031] A disc card structure includes an upper cover plate 1 and a lower cover plate 2. The upper cover plate 1 and the lower cover plate 2 are detachably fixedly connected. A film 3 is clamped in the accommodating space formed between the upper cover plate 1 and the lower cover plate 2. The end surface of the upper cover plate 1 is provided with transmission teeth 4 for transmission.

[0032] See also Figure 1 and Figure 2 As shown, by arranging the transmission teeth 4 on the outer end surface of the upper cover disc 1, when the disc is taken out, there is no direct contact with the transmission teeth 4. Compared with the existing method of arranging the teeth on the outer edge of the film disc, the present application can avoid contact with the teeth when taking out. For children, the outer circle is smoother and not easy to be hurt, thereby improving the user experience.

[0033] The upper cover plate 1 and the lower cover plate 2 are detachably connected via a snap-fit ​​assembly, which includes a first snap-fit ​​structure 6 and a second snap-fit ​​structure 9. The first snap-fit ​​structure 6 is located at the edge of the two, and the second snap-fit ​​structure 9 is located in the middle of the two.

[0034] See also Figures 2 to 6As shown, in order to make the connection between the upper cover plate 1 and the lower cover plate 2 more reliable, a first clamping structure 6 is provided at the edge and a second clamping structure 9 is provided in the middle position, so that the upper cover plate 1 and the lower cover plate 2 are clamped and fixed by the first clamping structure 6 and the second clamping structure 9, thereby clamping the film 3 between the upper cover plate 1 and the lower cover plate 2 to prevent the film 3 from moving.

[0035] The first clamping structure 6 includes a plurality of first clamping blocks 61 arranged at the upper edge of the side of the upper cover plate 1 close to the lower cover plate 2, and a first clamping groove 62 adapted to the first clamping block 61 is opened on the lower cover plate 2;

[0036] The second clamping structure 9 includes a plurality of second clamping blocks 91 arranged on the side of the upper cover plate 1 close to the lower cover plate 2 , and a second clamping groove 92 adapted to the second clamping block 91 is opened on the side of the lower cover plate 2 .

[0037] See also Figures 2 to 6 As shown, during installation, the first clamping block 61 can be inserted into the first clamping groove 62 to connect the edges of the upper cover plate 1 and the lower cover plate 2. In order to further clamp and fix the two, the second clamping block 91 is inserted into the second clamping groove 92 to connect the middle parts of the two. The first clamping structure 6 and the second clamping structure 9 cooperate to realize the detachable connection and installation of the upper cover plate 1 and the lower cover plate 2.

[0038] In this embodiment, the first card block 61 and the second card block 91 can also be set on the upper cover plate 1, and the first card slot 62 and the second card slot 92 can be set on the lower cover plate 2. Specifically, the distribution positions of the first card block 61, the second card block 91, the first card slot 62 and the second card slot 92 can be designed according to needs and are not limited here.

[0039] A positioning structure 8 is further provided between the upper cover plate 1 and the lower cover plate 2. The positioning structure 8 includes a plurality of positioning posts 81a integrally provided on the end surface of the upper cover plate 1 close to the lower cover plate 2. The end surface of the lower cover plate 2 close to the upper cover plate 1 is provided with positioning holes 82a adapted to the positioning posts 81a.

[0040] It also includes a plurality of first positioning ribs 81 b integrally arranged at the end surface edge of the upper cover plate 1 close to the lower cover plate 2 , and a positioning groove 82 b adapted to the positioning ribs 81 b is opened at the end surface edge of the lower cover plate 2 close to the upper cover plate 1 .

[0041] See also Figures 2 to 6As shown, when the upper cover plate 1 and the lower cover plate 2 are installed, in order to achieve the alignment of the snap-fitting positions, the upper cover plate 1 and the lower cover plate 2 are positioned by means of the positioning structure 8. Specifically, before the upper cover plate 1 and the lower cover plate 2 are snap-fitted, the positioning column 81a is aligned and inserted into the positioning hole 82a, and the positioning rib 81b is aligned and inserted into the positioning groove 82b, thereby achieving the positioning of the upper cover plate 1 and the lower cover plate 2.

[0042] There are three positioning posts 81a and three positioning holes 82a respectively, which are plugged into each other in a one-to-one correspondence. There are four positioning ribs 81b and four positioning grooves 82b respectively, which are plugged into each other in a one-to-one correspondence, thereby realizing the positioning of the upper cover plate 1 and the lower cover plate 2 when they are combined. The above quantity can be designed according to needs, and the specific quantity is not limited here.

[0043] In practice, the shapes of the positioning column 81a and the positioning hole 82a as well as the shapes of the positioning rib 81b and the positioning groove 82b can be designed as required, such as elliptical, semicircular, etc., and the specific shapes are not limited here.

[0044] The end surface of the lower cover plate 2 facing away from the upper cover plate 1 is provided with a receiving groove 10, in which a code point paper 5 is provided, a plurality of protrusions 11 are provided on the circumferential side wall of the receiving groove 10, and a plurality of grooves 12 adapted to the protrusions 11 are opened on the outer circumference of the code point paper 5.

[0045] participate Figure 2 and Figure 5 As shown, in order to facilitate the rapid installation of the code point paper 5 into the accommodating groove 10 and prevent its position from changing, the protrusion 11 is inserted into the groove 12 to achieve the positioning of the code point paper 5 and determine the position of the code point paper 5.

[0046] A magnetic mounting structure 7 is also provided between the upper cover plate 1 and the lower cover plate 2. The magnetic mounting structure 7 includes a convex ring 71 arranged on the outer circumference of the center hole of the lower cover plate 2 close to the upper cover plate 1, and a step hole 72 is arranged at the center hole of the upper cover plate 1 close to the lower cover plate 2. When the upper cover plate 1 and the lower cover plate 2 are installed and matched, a first magnetic attraction component 73 is arranged between the convex ring 71 and the step hole 72.

[0047] See also Figures 2 to 6In order to facilitate the installation and positioning of the present structure in the projector, the first magnetic member 73 is positioned with another second magnetic member 18 at a corresponding position on the outside. Specifically, the first magnetic member 73 is installed in the installation groove formed by the convex ring 71 and the step hole 72. When the present card structure is installed in the projector, the first magnetic member 73 is magnetically attracted to the second magnetic member 18 at another position of the projector, so as to determine that the present card structure has been installed in place at this time. The position of the external second magnetic member 18 can be set as needed. Specifically, the first magnetic member 73 can be a magnet or a patch. When the first magnetic member 73 is an iron sheet, the external second magnetic member 18 is a magnet; when the first magnetic member 73 is a magnet, the external second magnetic member 18 is an iron sheet or a magnet. When the second magnetic member 18 and the first magnetic member 73 are both magnets, the magnetic surfaces of the two are opposite, that is, the characteristic of opposites attracting each other is used to determine whether the installation is in place.

[0048] The utility model also discloses a projector, including a casing 13, wherein a first mounting bracket 14 and a second mounting bracket 15 are fixedly mounted inside the casing 13, and any of the above-mentioned disc card structures is arranged between the accommodating cavity formed between the first mounting bracket 14 and the second mounting bracket 15, and a cover plate 16 for closing or opening the accommodating cavity is arranged at the opening of the accommodating cavity.

[0049] The projector also includes components such as a projection structure, a power supply, a control circuit board, and a processor.

[0050] A driving structure 17 for driving the disc card structure to rotate is arranged on the second mounting bracket 15, and the driving structure 17 includes a motor 171 and a gear set 172 fixedly mounted on the second mounting bracket 15, and the power output end of the motor 171 is transmission-connected with the power input end of the gear set 172, and a gear shaft 173 is also rotatably mounted on the second mounting bracket 15, and a driven tooth 175 is fixedly arranged on the outer surface of the gear shaft 173 for meshing transmission with the power output end of the gear set 172, and meshing transmission is performed with the power output end of the gear set 172 through the driven tooth 175, and a driving tooth 174 adapted to the transmission tooth 4 is fixedly arranged on the end face of the gear shaft 173 facing the disc card structure.

[0051] A spring 19 is provided between the central hole of the gear shaft 173 and the housing 13 to make the driving tooth 174 abut against the transmission tooth 4 . A second magnetic attraction member 18 that is magnetically attracted to the first magnetic attraction member 73 is provided inside the central hole of the gear shaft 173 .

[0052] See also Figure 8As shown, first, the rotational power from the motor 171 is transmitted to the gear shaft 173 through the gear set 172, thereby driving the gear shaft 173 to rotate, and under the elastic force of the spring 19, the gear shaft 173 is driven to move laterally toward the disc card structure, so that the driving tooth 174 is engaged with the transmission tooth 4, thereby driving the disc card structure to rotate. During this process, the first magnetic attraction member 73 is magnetically attracted to the gear shaft 173.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A disc card structure, characterized in that: The invention comprises an upper cover plate (1) and a lower cover plate (2), wherein the upper cover plate (1) and the lower cover plate (2) are detachably fixedly connected, a film (3) is clamped in the accommodation space formed between the upper cover plate (1) and the lower cover plate (2), and a transmission tooth (4) for transmission is arranged on the end surface of the upper cover plate (1).

2. A disc card structure according to claim 1, characterized in that: The upper cover plate (1) and the lower cover plate (2) are detachably connected via a snap-fit ​​assembly, wherein the snap-fit ​​assembly comprises a first snap-fit ​​structure (6) and a second snap-fit ​​structure (9), wherein the first snap-fit ​​structure (6) is located at the edge of the two, and the second snap-fit ​​structure (9) is located in the middle of the two.

3. A disc card structure according to claim 2, characterized in that: The first clamping structure (6) comprises a plurality of first clamping blocks (61) arranged on the upper edge of the side surface of the upper cover plate (1) close to the lower cover plate (2), and the lower cover plate (2) is provided with a first clamping groove (62) adapted to the first clamping block (61); The second clamping structure (9) comprises a plurality of second clamping blocks (91) arranged on the side of the upper cover plate (1) close to the lower cover plate (2), and the side of the lower cover plate (2) is provided with a second clamping groove (92) adapted to the second clamping block (91).

4. A disc card structure according to claim 1, characterized in that: A positioning structure (8) is also provided between the upper cover plate (1) and the lower cover plate (2), the positioning structure (8) comprising a plurality of positioning posts (81a) integrally provided on the end surface of the upper cover plate (1) close to the lower cover plate (2), and a positioning hole (82a) adapted to the positioning post (81a) is provided on the end surface of the lower cover plate (2) close to the upper cover plate (1); It also comprises a plurality of first positioning ribs (81b) integrally arranged at the end surface edge of the upper cover plate (1) close to the lower cover plate (2), and a positioning groove (82b) adapted to the positioning ribs (81b) is provided at the end surface edge of the lower cover plate (2) close to the upper cover plate (1).

5. The disc card structure according to claim 1, characterized in that: The end surface of the lower cover plate (2) facing away from the upper cover plate (1) is provided with a receiving groove (10), a code point paper (5) is arranged in the receiving groove (10), a plurality of protrusions (11) are arranged on the circumferential side wall of the receiving groove (10), and a plurality of grooves (12) matching with the protrusions (11) are opened on the outer circumference of the code point paper (5).

6. A disc card structure according to claim 1, characterized in that: A magnetic mounting structure (7) is also provided between the upper cover plate (1) and the lower cover plate (2), and the magnetic mounting structure (7) comprises a convex ring (71) provided on the outer circumference of the center hole of the lower cover plate (2) close to the upper cover plate (1), and a step hole (72) is provided on the upper cover plate (1) close to the center hole of the lower cover plate (2). When the upper cover plate (1) and the lower cover plate (2) are mounted and matched, a first magnetic attraction component (73) is provided between the convex ring (71) and the step hole (72).

7. A projector, characterized in that: It comprises a casing (13), wherein a first mounting bracket (14) and a second mounting bracket (15) are respectively fixedly mounted inside the casing (13), a disc card structure according to any one of claims 1 to 6 is arranged between a receiving cavity formed between the first mounting bracket (14) and the second mounting bracket (15), and a cover plate (16) for closing or opening the receiving cavity is arranged at the opening of the receiving cavity.

8. A projector according to claim 7, characterized in that: The second mounting bracket (15) is provided with a driving structure (17) for driving the disc card structure to rotate. The driving structure (17) includes a motor (171) and a gear set (172) fixedly mounted on the second mounting bracket (15). The power output end of the motor (171) is transmission-connected with the power input end of the gear set (172). The second mounting bracket (15) is also rotatably mounted with a gear shaft (173). The outer surface of the gear shaft (173) is fixedly provided with driven teeth (175) for meshing transmission with the power output end of the gear set (172). The driven teeth (175) are meshed with the power output end of the gear set (172). The end surface of the gear shaft (173) facing the disc card structure is fixedly provided with driving teeth (174) adapted to the transmission teeth (4).

9. A projector according to claim 8, characterized in that: A spring (19) is arranged between the central hole of the gear shaft (173) and the housing (13) to cause the driving tooth (174) to abut against the transmission tooth (4), and a second magnetic attraction member (18) magnetically attracted to the first magnetic attraction member (73) is arranged inside the central hole of the gear shaft (173).

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