Story projector

Abstract

The utility model discloses a story projector which comprises a left shell and a right shell, a left support and a right support are installed in an accommodating chamber formed by the left shell and the right shell, a film disc assembly is installed in an installation cavity communicated with the outside and formed between the left support and the right support, driven teeth are arranged on the end face of the film disc assembly, and the driven teeth are connected with the left support and the right support. The device further comprises a driving part, a gear shaft is installed at the power output end of the driving part in a transmission mode, driving teeth are arranged on the end face, close to the film disc assembly, of the gear shaft, and the gear shaft is in transmission connection with the driving teeth when the device is used. According to the utility model, the driven teeth are arranged on the end face of the film disc assembly, so that the peripheral circle of the film disc assembly is smoother, and a user is not easy to be injured when the film disc assembly is replaced, taken and placed; and the power from the driving piece is transmitted to the film disc assembly through the transmission matching of the driven teeth and the driving teeth, and the film disc assembly is driven to rotate, so that projection is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of children's early education equipment, in particular to a story projector. Background Art

[0002] With the advancement of science and technology and people's emphasis on early childhood education, card-type film storytelling machines have gradually become popular in the market as a new type of educational toy. This storytelling machine inserts disc-shaped cards with story content, allowing children to learn knowledge and broaden their horizons in the process of watching and listening. However, the card-type film storytelling machines currently on the market still have some shortcomings in design.

[0003] First, a common design is a separate card and film disc. In this design, the film disc is fixed in the card, and the outer edge of the film disc has transmission teeth. The film disc with teeth on the outer edge is sharp for children, which can easily cause accidental injuries during the removal and insertion process, and the user experience is not good. For this reason, we provide a story projector to solve the above problems. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a story projector.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A story projector comprises a left shell and a right shell, wherein a left bracket and a right bracket are installed in a accommodating chamber formed by the left shell and the right shell, a film disc assembly is installed in an installation cavity formed between the left bracket and the right bracket and communicated with the outside, the end face of the film disc assembly is provided with a driven tooth, and further comprises a driving member for providing power for the rotation of the film disc assembly, the power output end of the driving member is transmission-installed with a gear shaft, the end face of the gear shaft close to the film disc assembly is provided with a driving tooth adapted to the driven tooth, and the gear shaft is transmission-connected with the driving tooth when in use.

[0007] Preferably, it also includes an inner cavity shell arranged in the accommodating chamber, a speaker is installed inside the inner cavity shell, and a power supply for providing electrical energy is also arranged in the inner cavity shell, a handle for taking is installed on the outer surface of the left shell body, and a cover plate for closing it after opening is provided at the opening of the installation cavity formed by the left bracket and the right bracket.

[0008] Preferably, it also includes a projection assembly, the projection assembly includes a light installed on the side of the left bracket, the left bracket is provided with an avoidance hole for the light of the light to pass through, a projection lens is provided on one side of the avoidance hole, and also includes an adjustment assembly installed on the right bracket and the right shell for adjusting the projection lens.

[0009] Preferably, the adjustment assembly includes a mounting ring arranged on the right bracket, the inner hole of the mounting ring passes through the right bracket, the mounting bracket can perform axial sliding in the mounting ring, the lens bracket is detachably installed in the mounting bracket, the projection lens is installed inside the lens bracket, a mounting hole is opened on the right shell body, an adjustment ring threadedly connected to the lens bracket is arranged on the inner side of the mounting hole, and a focusing knob fixedly connected to the adjustment ring is arranged on the outer side of the mounting hole.

[0010] Preferably, the adjustment component also includes a first guide groove provided on the end face of the mounting ring, and a first guide rib is provided on the outer surface of the mounting bracket, which can slide axially under the guidance of the first guide groove; a second guide rib is fixedly provided on the inner wall of the mounting bracket, and a second guide groove adapted to the second guide rib is provided on the end face of the lens bracket close to the mounting bracket, and a buckle is also provided between the lens bracket and the mounting bracket, and the two are fixed by the buckle.

[0011] Preferably, a reset component is provided between the gear shaft and the right shell body to drive the gear shaft to perform lateral reset movement, the reset component includes a accommodating hole opened on the end face of the gear shaft away from the active tooth, a spring is provided inside the accommodating hole, a second magnetic attraction member is provided between the spring and the end face of the accommodating hole, a guide tube for guiding the axial movement of the gear shaft is provided on the inner side face of the right shell body, and the other end of the spring abuts against the inner hole end face of the guide tube.

[0012] Preferably, the film disc assembly includes a right disc body and a left disc body, the right disc body and the left disc body are detachably connected, the driven tooth is arranged on the end face of the right disc body away from the left disc body, a film body is clamped between the right disc body and the left disc body, a first magnetic attraction component is arranged between the centers of the sides of the left disc body and the right disc body close to each other, and a code point paper is installed on the side of the left disc body away from the right disc body.

[0013] Preferably, an encoder knob assembly is also installed on the left shell body, and the encoder knob assembly includes a lower mounting shell that is detachably mounted in the left shell body, an encoder circuit board is fixedly mounted on the bottom surface of the lower mounting shell, an upper mounting shell is integrally arranged on the upper surface of the lower mounting shell, an upper mounting shell and an arc-shaped waist hole arranged with the upper mounting shell as the center of a circle are opened on the upper surface of the upper mounting shell, and also includes an adjusting knob located above the upper mounting shell, a transmission column is fixedly mounted on the center of the inner wall of the adjusting knob, a screw column is arranged on one side of the transmission column, and a clamping structure that is clamped with the upper mounting shell is arranged on the transmission column and the adjusting knob, and a limiting screw is installed on the screw column during assembly, and the transmission column passes through the center hole and rotates so that when the screw column is located at the position of the arc-shaped waist hole, the limiting screw passes through the arc-shaped waist hole from the bottom and is connected with the screw column, and the clamping structure and the upper mounting shell are always in a clamping limit state within the rotation guide range of the arc-shaped waist hole.

[0014] Preferably, the clamping structure includes a clamping block fixedly mounted on the outer surface of the transmission column, the inner wall of the center hole is provided with a first avoidance groove adapted to the clamping block, and the inner wall of the adjusting knob is also fixedly provided with a clamping rib. During assembly, the transmission column drives the clamping block to pass through the first avoidance groove and rotate so that the clamping block abuts against the inner top wall of the upper mounting shell, and the clamping rib abuts against the upper surface of the upper mounting shell.

[0015] Preferably, it also includes a second avoidance groove opened on the right shell body and a mounting groove opened on the lower mounting shell, a button is installed in the mounting groove, the bottom of the button abuts against the button on the encoder circuit board, and the other end of the button protrudes from the outer surface of the right shell body.

[0016] Preferably, the cover plate includes a plate body, a card block is provided in the left shell at the opening of the installation cavity, a card slot which is engaged with the card block is provided at the bottom of the plate body, magnetic parts which are magnetically attracted to corresponding positions in the left shell are provided at the top and bottom of the inner side of the plate body, and a rib plate which is contacted and pressed with the switch cover detector in the groove of the left shell is provided at the top of the plate body.

[0017] The utility model has the following advantages:

[0018] 1. The utility model arranges the driven teeth on the end surface of the film disc assembly, so that the outer circumference of the film disc assembly is smoother, and it is not easy for the user to be injured when the film disc assembly is replaced and placed. The driven teeth and the driving teeth cooperate to transmit the power from the driving member to the film disc assembly and drive the film disc assembly to rotate, so as to realize projection.

[0019] 2. The utility model provides a handle on the left shell body, so that the storytelling projector can be conveniently and quickly carried and moved by holding the handle, and the sound corresponding to the corresponding picture in the film disc assembly can be played through the speaker, and the effect of children's early education can be improved through the combination of sound and image; furthermore, the opening of the installation cavity formed by the left bracket and the right bracket is closed by the cover plate to prevent external dust from entering the projector and affecting its internal components.

[0020] 3. The utility model drives the adjusting ring to rotate by the focusing knob, so that the lens bracket and the mounting bracket move axially under the guidance of the first guide groove, thereby adjusting the focal length of the picture, so that the picture is clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the whole machine of the utility model.

[0022] Figure 2 It is a schematic diagram of the whole machine of the utility model in the exploded state.

[0023] Figure 3 This is a schematic diagram of the gear shaft and active gear structure of the utility model.

[0024] Figure 4 It is a schematic diagram of the projection assembly of the utility model in an exploded state.

[0025] Figure 5 It is a schematic diagram of the film disc assembly and the projection assembly of the utility model in an exploded state.

[0026] Figure 6 It is a schematic diagram of the right shell structure of the utility model.

[0027] Figure 7 This is a schematic diagram of the overall structure of the film disc assembly of the utility model.

[0028] Figure 8 It is a schematic diagram of the film disc assembly of the utility model in an exploded state.

[0029] Fig. 9 It is a schematic diagram of the cover plate and the whole machine of the utility model in the exploded state.

[0030] Fig.10 This is a schematic diagram of the encoder knob assembly of the utility model from a first viewing angle.

[0031] Fig.11 This is a schematic diagram of the encoder knob assembly of the utility model from a second viewing angle.

[0032] Fig.12 This is a schematic diagram of the encoder knob assembly of the utility model in an exploded state.

[0033] Fig.13 This is a schematic diagram of the structure of the adjusting knob of the utility model.

[0034] Fig.14 It is a schematic diagram of the structure of the lower mounting shell and the upper mounting shell of the utility model.

[0035] Fig.15 It is a bottom view schematic diagram of the adjusting knob of the utility model.

[0036] Fig.16 It is a schematic diagram of the lower mounting shell and the upper mounting shell of the utility model when viewed from above.

[0037] Fig.17 It is a structural schematic diagram of the cover plate and the left shell of the utility model in the assembled state.

[0038] Fig.18 This is a schematic diagram of the cover structure of the utility model.

[0039] In the figure, 1a, left shell; 1b, right shell; 2, left bracket; 3, right bracket; 4, film disc assembly; 41, right disc body; 42, left disc body; 43, film body; 44, code point paper; 45, first magnetic suction member; 5, driven gear; 6, driving member; 7, gear shaft; 8, driving gear; 9, projection assembly; 91, light; 92, avoidance hole; 93, projection lens; 94, adjustment assembly; 941, mounting ring; 942, first guide groove; 943, mounting bracket; 944, lens bracket; 945, first guide rib; 946, second guide groove; 947, second guide rib; 948, adjustment ring; 949, focusing knob; 9410, mounting hole; 10, encoder knob assembly; 101, encoder electric Road plate; 102, adjustment knob; 103, transmission column; 104, lower mounting shell; 105, upper mounting shell; 106, arc waist hole; 107, limit screw; 108, snap-in structure; 1081, snap-in block; 1082, snap-in rib; 1083, first avoidance groove; 109, screw column; 1010, center hole; 1011, mounting groove; 1012, button; 1013, second avoidance groove; 11, inner cavity shell; 12, speaker; 13, power supply; 14, handle; 15, reset assembly; 151, accommodating hole; 152, spring; 153, second magnetic attraction member; 154, guide tube; 16, cover plate; 161, plate body; 162, magnetic member; 163, rib plate; 164, slot; 17, block. DETAILED DESCRIPTION

[0040] 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.

[0041] 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.

[0042] like Figure 1 — Fig.16 The embodiment shown.

[0043] A story projector comprises a left shell 1a and a right shell 1b, wherein a left bracket 2 and a right bracket 3 are installed in a containing chamber formed by the left shell 1a and the right shell 1b, wherein a film disc assembly 4 is installed in an installation cavity formed between the left bracket 2 and the right bracket 3 and communicated with the outside, wherein the end surface of the film disc assembly 4 is provided with a driven tooth 5, and further comprises a driving member 6 for providing power for the rotation of the film disc assembly 4, wherein a gear shaft 7 is installed for transmission at the power output end of the driving member 6, wherein the end surface of the gear shaft 7 close to the film disc assembly 4 is provided with a driving tooth 8 adapted to the driven tooth 5, and wherein the gear shaft 7 is transmission-connected with the driving tooth 8 when in use.

[0044] See also Figures 1 to 3 As shown, compared with the traditional method of setting the transmission teeth on the outer circumference of the clamping disk, the present application sets the driven teeth 5 on the end face of the film disk assembly 4 to make the outer circumference of the film disk assembly 4 smoother, that is, the power is transmitted to the film disk assembly 4 from the side and drives the film disk assembly 4 to rotate to achieve playback, so that when the film disk assembly 4 is replaced, the user's hand will not directly contact the transmission teeth at the outer circumference, that is, it will not cause stabbing or bruising, etc., which improves the user experience and safety. In addition, when in use, the present application transmits the power from the driving member 6 to the film disk assembly 4 through the driving teeth 8 at the end of the gear shaft 7 and the driven teeth 5, so as to make it rotate to achieve image playback.

[0045] In this embodiment, the driving member 6 is composed of a motor and a plurality of gears, the plurality of gears forming a gear set, and the gear set is meshed with the gear shaft 7 for transmission. Specifically, the motor transmits power to the gear shaft 7 through the gear set, and the transmission of the rotational force from the motor is achieved through the meshing between the driving teeth 8 and the driven teeth 5. The gear set mentioned above can also be replaced by a corresponding reducer, and the power from the motor can also be transmitted to the gear shaft 7 through a combination of a belt and a pulley. If a belt drive is adopted, a corresponding pulley should also be installed on the gear shaft 7. The specific transmission method can be designed and selected according to needs, and no specific restrictions are made here.

[0046] It also includes an inner cavity shell 11 arranged in the accommodating chamber, a speaker 12 is installed inside the inner cavity shell 11, and a power supply 13 for providing electrical energy is also arranged in the inner cavity shell 11, a handle 14 for taking is installed on the outer surface of the left shell body 1a, and a cover plate 16 is provided at the opening of the installation cavity formed by the left bracket 2 and the right bracket 3 to close it after it is opened.

[0047] participate Figure 1 and Figure 2 As shown, in the present embodiment, each electrical component in the projector is powered by a power supply 13. Accordingly, a charging port (not shown) for charging the power supply 13 is also provided on the left shell 1a. In order to distribute electric energy, corresponding circuit boards, processors and other control components may also be installed on the inner shell 11. When the projector needs to be transported, the projector may be moved by holding the handle 14. The opening of the installation cavity is closed by a cover plate 16 to prevent external dust from entering the projector and affecting the components inside the projector.

[0048] It also includes a projection assembly 9, which includes a light 91 installed on the side of the left bracket 2, and a avoidance hole 92 is opened on the left bracket 2 for the light of the light 91 to pass through. A projection lens 93 is set on one side of the avoidance hole 92, and also includes an adjustment assembly 94 installed on the right bracket 3 and the right shell 1b for adjusting the projection lens 93.

[0049] See also Figures 2 to 5 As shown, the projection lens 93 is installed in the adjustment component 94. Specifically, when in use, the light generated by the lamp 91 passes through the avoidance hole 92 to the position of the film disc component 4, irradiates the corresponding image on the film disc component 4, and the image is transmitted to the external projection position through the projection lens 93, thereby realizing the projection of the image on the film; if the projected image is blurred, the projection lens 93 can be driven to move by the adjustment component 94 until the projected image is clear.

[0050] The adjustment assembly 94 includes a mounting ring 941 arranged on the right bracket 3, the inner hole of the mounting ring 941 passes through the right bracket 3, the mounting bracket 943 capable of axial sliding in the mounting ring 941, a lens bracket 944 is detachably installed in the mounting bracket 943, the projection lens 93 is installed inside the lens bracket 944, a mounting hole 9410 is opened on the right shell body 1b, an adjustment ring 948 threadedly connected to the lens bracket 944 is arranged on the inner side of the mounting hole 9410, and a focusing knob 949 fixedly connected to the adjustment ring 948 is arranged on the outer side of the mounting hole 9410.

[0051] The adjustment assembly 94 also includes a first guide groove 942 provided on the end face of the mounting ring 941, and a first guide rib 945 is provided on the outer surface of the mounting bracket 943, which can slide axially under the guidance of the first guide groove 942; a second guide rib 947 is fixedly provided on the inner wall of the mounting bracket 943, and a second guide groove 946 adapted to the second guide rib 947 is provided on the end face of the lens bracket 944 close to the mounting bracket 943, and a buckle is also provided between the lens bracket 944 and the mounting bracket 943, and the two are fixed by the buckle.

[0052] See also Figure 2 , Figures 4 to 6 As shown, when the position of the projection lens 93 needs to be adjusted, first, the focus knob 949 is turned to drive the adjustment ring 948 to rotate. Since the adjustment ring 948 is threadedly connected to the lens bracket 944, and the lens bracket 944 is clamped and fixed to the mounting bracket 943, and the second guide groove 946 is limitedly clamped with the second guide rib 947, and the first guide rib 945 is located in the first guide groove 942, the first guide rib 945 is limited by the first guide groove 942, that is, the lens bracket 944 does not rotate, and the rotational force from the adjustment ring 948 acts on the lens bracket 944, thereby converting the rotational force into an axial movement force guided along the first guide groove 942 through the threaded connection, so that the lens bracket 944 moves in the axial direction, the position of the projection lens 93 is changed, and the projected image is clearer, thereby completing the position adjustment of the projection lens 93.

[0053] A reset assembly 15 is provided between the gear shaft 7 and the right housing 1b to drive the gear shaft 7 to perform lateral reset movement. The reset assembly 15 includes an accommodating hole 151 provided on the end face of the gear shaft 7 away from the active tooth 8. A spring 152 is provided inside the accommodating hole 151. A second magnetic attraction member 153 is provided between the spring 152 and the end face of the accommodating hole 151. A guide tube 154 for guiding the axial movement of the gear shaft 7 is provided on the inner side face of the right housing 1b. The other end of the spring 152 abuts against the inner hole end face of the guide tube 154.

[0054] See also Figure 5 and Figure 6 As shown, in order to better transmit the power of the gear shaft 7 to the film disc assembly 4, the gear shaft 7 is driven to move toward the film disc assembly 4 by the elastic force of the spring 152, thereby increasing the abutment force between the active tooth 8 and the driven tooth 5 to prevent slipping. In addition, for the convenience of installation, when the film disc assembly 4 is installed in the installation cavity, it will abut the active tooth 8 to drive the gear shaft 7 to move away from the film disc assembly 4, and the gear shaft 7 moves under the guidance of the guide tube 154 to vacate a space that can accommodate the film disc assembly 4, so that the film disc assembly 4 can enter the installation cavity.

[0055] The film disc assembly 4 includes a right disc body 41 and a left disc body 42, the right disc body 41 and the left disc body 42 are detachably connected, the driven tooth 5 is arranged on the end face of the right disc body 41 away from the left disc body 42, a film body 43 is clamped between the right disc body 41 and the left disc body 42, a first magnetic attraction member 45 is arranged between the centers of the sides where the left disc body 42 and the right disc body 41 are close to each other, and a code point paper 44 is installed on the side of the left disc body 42 away from the right disc body 41.

[0056] See also Figure 7 and Figure 8 As shown, a plurality of picture windows with images are evenly arranged on the film body 43 (not marked in the figure), and the image of the picture window is projected on the picture window by the light from the light 91 as the picture window rotates and passes through the avoidance hole 92; there are black and white blocks of different arrangements on the code point paper 44 (not shown in the figure) for identifying the story of the clip; furthermore, in the present embodiment, the first magnetic attraction member 45 is arranged at the center of the circle between the left disk body 42 and the right disk body 41, and when the film disk assembly 4 is installed, the first magnetic attraction member 45 can be magnetically attracted to the second magnetic attraction member 153 mentioned above to determine whether the film disk assembly 4 is installed in place at this time.

[0057] The first magnetic component 45 can be a magnet or a patch. When it is an iron sheet, the second magnetic component 153 is a magnet. When the first magnetic component 45 is a magnet, the second magnetic component 153 can be a magnet or a patch. When the second magnetic component 153 is a magnet, the magnetism of the adjacent surfaces of the two are opposite, and the magnetic attraction is achieved according to the specific attraction of magnets of different shapes.

[0058] The left housing 1a is also provided with an encoder knob assembly 10, which includes a lower mounting shell 104 detachably mounted in the left housing 1a, an encoder circuit board 101 fixedly mounted on the bottom surface of the lower mounting shell 104, an upper mounting shell 105 integrally provided on the upper surface of the lower mounting shell 104, an upper mounting shell 105 and an arc-shaped waist hole 106 arranged with the upper mounting shell 105 as the center of the circle are provided on the upper surface of the upper mounting shell 105, and an adjustment knob 102 located above the upper mounting shell 105, a transmission column 103 fixedly mounted on the inner wall center of the adjustment knob 102, and the transmission column 103 A screw column 109 is provided on one side, and a clamping structure 108 clamped with the upper mounting shell 105 is provided on the transmission column 103 and the adjustment knob 102. During assembly, a limiting screw 107 is installed on the screw column 109. When the transmission column 103 passes through the center hole 1010 and is rotated so that the screw column 109 is located at the arc-shaped waist hole 106, the limiting screw 107 passes through the arc-shaped waist hole 106 from the bottom and is connected to the screw column 109. The screw column 109 is within the rotation guide range of the arc-shaped waist hole 106, and the clamping structure 108 and the upper mounting shell 105 are always in a clamping and limiting state.

[0059] The clamping structure 108 includes a clamping block 1081 fixedly mounted on the outer surface of the transmission column 103, the inner wall of the center hole 1010 is provided with a first avoidance groove 1083 adapted to the clamping block 1081, and the inner wall of the adjusting knob 102 is also fixedly provided with a clamping rib 1082. During assembly, the transmission column 103 drives the clamping block 1081 to pass through the first avoidance groove 1083 and rotate so that the clamping block 1081 abuts against the inner top wall of the upper mounting shell 105, and the clamping rib 1082 abuts against the upper surface of the upper mounting shell 105.

[0060] See also Figures 11 to 16As shown, the encoder circuit board 101 has corresponding buttons and adjustment shafts. When in the installed state, the adjustment shaft is connected to the transmission column 103 for transmission, and the end of the transmission column 103 is clamped with the adjustment shaft on the encoder circuit board 101, that is, when the adjustment knob 102 drives the transmission column 103 to rotate, it will also drive the transmission column 103 to rotate to achieve adjustment; during the installation process, first align the clamping block 1081 with the first avoidance groove 1083, and then move downward until the clamping rib 1082 abuts against the upper surface of the upper mounting shell 105, and then rotate the clamping block 1081 and the first avoidance groove 1083 when it is misaligned. At this time, the clamping block 1081 abuts against the lower surface of the upper mounting shell 105. At this time, under the action of the clamping block 1081 and the clamping rib 1082, the transmission column 103 and the upper mounting shell 105 are clamped. At this time, in the clamped state Only the height direction of the transmission column 103 is limited at the bottom, and its rotation direction is not limited. As the adjusting knob 102 drives the transmission column 103 to rotate, the screw column 109 is located at the position of the arc-shaped waist hole 106. When the screw column 109 is located at the position of the arc-shaped waist hole 106, the limiting screw 107 passes through the arc-shaped waist hole 106 from the bottom and is connected to the screw column 109. At this time, the limiting screw 107 rotates with the rotation of the screw column 109, but when it rotates to the end of the arc-shaped waist hole 106, the limiting screw 107 will contact the end of the arc-shaped waist hole 106, preventing the transmission column 103 and the screw column 109 from continuing to rotate. Under the curvature of the arc-shaped waist hole 106, the clamping block 1081 and the first avoidance groove 1083 are always in a misaligned state, that is, the transmission column 103 and the upper mounting shell 105 are always in a clamping state, and the two will not separate.

[0061] In order to prevent the clamping block 1081 and the first avoidance groove 1083 from being misaligned, specifically, the angle α between the two clamping blocks 1081 and the line between the screw column 109 and the transmission column 103 is ninety degrees, the angle β formed by the line between the two first avoidance grooves 1083 and the line between the two ends of the arc-shaped waist hole 106 is ninety degrees, and the curvature of the arc-shaped waist hole 106 is less than one hundred and eighty degrees. The specific angle can be designed and selected according to needs. When the limit screw 107 follows the screw column 109 and is located at the end of the arc-shaped waist hole 106, the clamping block 1081 and the first avoidance groove 1083 are always in a misaligned state.

[0062] It also includes a second avoidance groove 1013 opened on the right shell body 1b and an installation groove 1011 opened on the lower installation shell 104, a button 1012 is installed in the installation groove 1011, the bottom of the button 1012 abuts against the button on the encoder circuit board 101, and the other end of the button 1012 protrudes from the outer surface of the right shell body 1b.

[0063] See also Figures 10 to 16As shown, by pressing the button 1012 protruding from the surface of the left shell 1a, the key on the encoder circuit board 101 is pressed to adjust the corresponding parameters such as the switch of the projector and the volume.

[0064] The cover plate 16 includes a plate body 161, a block 17 is provided on the left shell body 1a at the opening of the installation cavity, a slot 164 which is engaged with the block 17 is provided at the bottom of the plate body 161, magnetic parts 162 which are magnetically attracted to corresponding positions in the left shell body 1a are provided at the top and bottom of the inner side surface of the plate body 161, and a rib plate 163 which is in contact with and pressed into the switch cover detector in the groove of the left shell body 1a is provided on the top of the plate body 161.

[0065] See also Fig.17 and Fig.18 As shown, the switch cover detector (not shown) is located at the position of the groove (not marked) of the installation cavity opening, that is, in the installed state, the switch cover detector is located at the rib plate 163 of the installation cavity opening, the bottom of the plate body 161 is fixed by the clamping fit of the clamping block 17 and the clamping groove 164, and the magnetic member 162 at the bottom is magnetically attracted to the corresponding magnetic attraction component on the left shell body 1a, the top of the plate body 161 is magnetically fixed to another magnetic attraction component at the corresponding position on the left shell body 1a through another magnetic member 162 at the top, and is pressed against the switch cover detector (not shown) through the rib plate 163. When the two are separated, the projector stops working and the film disc assembly 4 stops rotating.

[0066] The magnetic member 162 and the magnetic attraction component mentioned above can be a combination of magnets or an iron sheet and a magnet. When the magnets are combined in a magnetic attraction manner, the magnetic properties of the two sides that are attracted to each other are opposite, that is, the magnetic connection is achieved by utilizing the characteristic of opposites attracting each other.

[0067] 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 story projector, comprising a left housing (1a) and a right housing (1b), characterized in that: A left bracket (2) and a right bracket (3) are installed in a receiving chamber formed by the left shell (1a) and the right shell (1b); a film disc assembly (4) is installed in an installation cavity formed between the left bracket (2) and the right bracket (3) and communicated with the outside; an end surface of the film disc assembly (4) is provided with a driven tooth (5); and a driving member (6) for providing power for the rotation of the film disc assembly (4) is also included; a gear shaft (7) is installed in a transmission manner at the power output end of the driving member (6); an end surface of the gear shaft (7) close to the film disc assembly (4) is provided with a driving tooth (8) adapted to the driven tooth (5); when in use, the gear shaft (7) is in transmission connection with the driving tooth (8).

2. A story projector according to claim 1, characterized in that: The invention also comprises an inner cavity shell (11) arranged in the accommodating chamber, a speaker (12) is installed inside the inner cavity shell (11), and a power supply (13) for providing electric energy is also arranged in the inner cavity shell (11), a handle (14) for taking is installed on the outer surface of the left shell body (1a), and a cover plate (16) for closing after opening is arranged at the opening of the installation cavity formed by the left bracket (2) and the right bracket (3).

3. A story projector according to claim 1, characterized in that: The device also comprises a projection assembly (9), wherein the projection assembly (9) comprises a light (91) mounted on the side of the left bracket (2), the left bracket (2) is provided with an escape hole (92) for light from the light (91) to pass through, a projection lens (93) is arranged on one side of the escape hole (92), and an adjustment assembly (94) mounted on the right bracket (3) and the right shell (1b) for adjusting the projection lens (93) is also comprised.

4. A story projector according to claim 3, characterized in that: The adjustment assembly (94) comprises a mounting ring (941) arranged on the right bracket (3), the inner hole of the mounting ring (941) passes through the right bracket (3), a mounting bracket (943) capable of axial sliding in the mounting ring (941), a lens bracket (944) detachably mounted in the mounting bracket (943), the projection lens (93) being mounted inside the lens bracket (944), a mounting hole (9410) being opened on the right shell (1b), an adjustment ring (948) threadedly connected to the lens bracket (944) being arranged inside the mounting hole (9410), and a focus knob (949) fixedly connected to the adjustment ring (948) being arranged outside the mounting hole (9410).

5. A story projector according to claim 4, characterized in that: The adjustment assembly (94) further comprises a first guide groove (942) provided on the end surface of the mounting ring (941); a first guide rib (945) which can slide axially under the guidance of the first guide groove (942) is provided on the outer surface of the mounting bracket (943); a second guide rib (947) is fixedly provided on the inner wall of the mounting bracket (943); a second guide groove (946) which is adapted to the second guide rib (947) is provided on the end surface of the lens bracket (944) close to the mounting bracket (943); and a buckle is further provided between the lens bracket (944) and the mounting bracket (943), and the two are fixedly connected by the buckle.

6. A story projector according to claim 1, characterized in that: A reset assembly (15) is arranged between the gear shaft (7) and the right housing (1b) to drive the gear shaft (7) to perform lateral reset movement. The reset assembly (15) comprises a receiving hole (151) provided on the end surface of the gear shaft (7) away from the active tooth (8). A spring (152) is arranged inside the receiving hole (151). A second magnetic attraction member (153) is arranged between the spring (152) and the end surface of the receiving hole (151). A guide tube (154) for guiding the axial movement of the gear shaft (7) is arranged on the inner side surface of the right housing (1b). The other end of the spring (152) abuts against the inner hole end surface of the guide tube (154).

7. A story projector according to claim 1, characterized in that: The film disc assembly (4) comprises a right disc body (41) and a left disc body (42), the right disc body (41) and the left disc body (42) being detachably connected, the driven tooth (5) being arranged on the end face of the right disc body (41) away from the left disc body (42), a film body (43) being clamped between the right disc body (41) and the left disc body (42), a first magnetic attraction member (45) being arranged between the centers of the sides of the left disc body (42) and the right disc body (41) close to each other, and a code point paper (44) being installed on the side of the left disc body (42) away from the right disc body (41).

8. A story projector according to claim 1, characterized in that: The left housing (1a) is also provided with an encoder knob assembly (10), the encoder knob assembly (10) comprising a lower mounting shell (104) detachably mounted in the left housing (1a), an encoder circuit board (101) being fixedly mounted on the bottom surface of the lower mounting shell (104), an upper mounting shell (105) being integrally provided on the upper surface of the lower mounting shell (104), the upper surface of the upper mounting shell (105) being provided with an upper mounting shell (105) and an arc-shaped waist hole (106) being arranged with the upper mounting shell (105) as the center of the circle, and an adjustment knob (102) being located above the upper mounting shell (105), a transmission column (103) being fixedly mounted on the center of the inner wall of the adjustment knob (102), the transmission column (103) being arranged on the upper surface of the lower mounting shell (104). ) is provided with a screw column (109) on one side, and a clamping structure (108) clamped with the upper mounting shell (105) is provided on the transmission column (103) and the adjustment knob (102). During assembly, a limit screw (107) is installed on the screw column (109). When the transmission column (103) passes through the center hole (1010) and rotates so that the screw column (109) is located at the position of the arc waist hole (106), the limit screw (107) passes through the arc waist hole (106) from the bottom and is connected to the screw column (109). When the screw column (109) is within the rotation guide range of the arc waist hole (106), the clamping structure (108) and the upper mounting shell (105) are always in a clamping limit state.

9. A story projector according to claim 8, characterized in that: The clamping structure (108) comprises a clamping block (1081) fixedly mounted on the outer surface of the transmission column (103); the inner wall of the center hole (1010) is provided with a first avoidance groove (1083) adapted to the clamping block (1081); and a clamping rib (1082) is also fixedly arranged on the inner wall of the adjusting knob (102); during assembly, the transmission column (103) drives the clamping block (1081) to pass through the first avoidance groove (1083) and rotate to make the clamping block (1081) abut against the inner top wall of the upper mounting shell (105), and the clamping rib (1082) abuts against the upper surface of the upper mounting shell (105).

10. A story projector according to claim 8, characterized in that: It also includes a second avoidance groove (1013) provided on the right shell (1b) and a mounting groove (1011) provided on the lower mounting shell (104), wherein a button (1012) is installed in the mounting groove (1011), the bottom of the button (1012) abuts against a key on the encoder circuit board (101), and the other end of the button (1012) protrudes from the outer surface of the right shell (1b).

11. A story projector according to claim 2, characterized in that: The cover plate (16) comprises a plate body (161); a block (17) is arranged on the left shell body (1a) at the opening of the installation cavity; a slot (164) is arranged at the bottom of the plate body (161) and is engaged with the block (17); magnetic parts (162) are arranged at the top and bottom of the inner side surface of the plate body (161) and are magnetically attracted to corresponding positions in the left shell body (1a); and a rib plate (163) is arranged at the top of the plate body (161) and is contacted and pressed with a switch cover detector in a groove of the left shell body (1a).

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