Rotatable shell capable of reducing cost through injection molding and lamp

Abstract

The utility model relates to the technical field of rotatable down lamps, in particular to an injection-molded cost-reduced rotatable shell and a lamp, which comprise a fixed shell and a movable shell, the movable shell is rotatably connected to the fixed shell, the fixed shell is provided with a first tooth-shaped part, the movable shell is provided with a second tooth-shaped part, the first tooth-shaped part is meshed with the second tooth-shaped part, and the first tooth-shaped part and the second tooth-shaped part are meshed with each other. Intermittent clamping connection capable of rotating by a certain angle is formed. The first tooth-shaped part and the second tooth-shaped part are both made of materials with a certain deformation characteristic, so that the first tooth-shaped part and the second tooth-shaped part can be matched with each other to form meshing connection, the movable shell is intermittently clamped on the fixed shell, and then the rotating angle of the movable shell relative to the fixed shell is adjusted. In conclusion, when the shell is produced, the corresponding rotating part can be directly and integrally formed, so that the light-emitting part of the lamp can be rotated, and the corresponding irradiation angle can be adjusted. And meanwhile, the assembly steps can be simplified, the mounting and adjusting modes are optimized, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rotatable downlights, in particular to a rotatable shell and a lamp with reduced cost through injection molding. Background Art

[0002] Downlights are a type of lighting fixture that is embedded in the ceiling and emits light downward. This type of hidden lamp embedded in the ceiling projects all light downwards and is a direct light distribution. Different reflectors, lenses, blinds, bulbs, and lamp beads can be used to achieve different lighting effects. Downlights do not take up space and can add a soft atmosphere to the space. Multiple downlights can also be installed to create a warm feeling and reduce the sense of oppression in the space. Downlights are widely used in shopping malls, hospitals, schools, large supermarkets, office spaces, high-end residences, etc. as key lighting to brighten and beautify the environment and add color to life.

[0003] Among them, a rotating downlight refers to a downlight whose light-emitting component can rotate. However, the rotating parts of the current rotating downlights are complex in structure and have too many parts, which leads to cumbersome production processes, high production costs, and inconvenience in use. For example, it is not convenient to rotate quickly when rotating, and after the rotation is completed, cumbersome fixing steps are required, which is not user-friendly, so the market acceptance is not high.

[0004] For example, a Chinese patent document with publication number CN215446205U discloses a rotating downlight, including a back shell, a light-emitting module arranged in the back shell, and an adjustment column for rotating the light-emitting module relative to the back shell, one end of the adjustment column passes through the back shell and is fixedly connected to the light-emitting module, and a locking member for locking the back shell and the light-emitting module is detachably connected to the adjustment column.

[0005] An adjustment column is used to change the angle of the light-emitting module, thereby changing the light-emitting direction of the downlight. However, the adjustment column requires additional holes to be drilled in the shell, and nuts are required for fastening, and even the assistance of limiters and elastic gaskets is required, resulting in too many parts and inconvenient installation. Parts may also easily fall off or be lost during later use, affecting the service life of the downlight.

[0006] Therefore, the technical problem to be solved is how to provide a rotatable housing and lamp with reduced cost by injection molding, so that the corresponding rotating parts can be directly integrally formed when the housing is produced, and the rotating parts can rotate the light-emitting parts of the lamp to adjust the corresponding irradiation angle. At the same time, it can also simplify the assembly steps, optimize the installation and adjustment mode, and reduce the production cost. Utility Model Content

[0007] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0008] The utility model provides a rotatable shell with reduced cost by injection molding, comprising a fixed shell and a movable shell, wherein the movable shell is rotatably connected to the fixed shell, the fixed shell is provided with a first toothed portion, and the movable shell is provided with a second toothed portion, the first toothed portion and the second toothed portion mesh with each other to form an intermittent clamping connection that can rotate at a certain angle.

[0009] As a further solution of the utility model: the first tooth-shaped portion and the second tooth-shaped portion are both made of a material with certain deformation characteristics, so that the two can cooperate with each other to form a meshing connection, so that the movable housing can be intermittently clamped on the fixed housing, thereby adjusting the rotation angle of the movable housing relative to the fixed housing.

[0010] As a further solution of the utility model: the fixed housing is provided with an axial hole, the movable housing is provided with a rotating shaft column, the axial hole is sleeved on the rotating shaft column, so that the movable housing is rotatably connected to the fixed housing.

[0011] As a further solution of the utility model: the first tooth-shaped portion is arranged on the inner wall of the shaft hole, and the second tooth-shaped portion is arranged on the outer wall of the rotating shaft column, so that an intermittent clamping connection is formed between the rotating shaft column and the shaft hole.

[0012] As a further solution of the utility model: the first tooth-shaped portion is arranged on the inner wall of the fixed housing and is located on the radial extension line of the shaft hole; the second tooth-shaped portion is arranged on the outer wall of the movable housing and is located on the radial extension line of the rotating shaft column; the movable housing is installed in the internal space of the fixed housing, so that the outer wall of the movable housing and the inner wall of the fixed housing are close to each other, and then the second tooth-shaped portion on the outer wall and the first tooth-shaped portion on the inner wall cooperate with each other to form an engaging connection.

[0013] As a further solution of the utility model: the first tooth-shaped portion is also provided with a fan-shaped tooth portion, which is fixed to the inner wall of the fixed housing and is coaxially arranged with the shaft hole, and the rack direction of the fan-shaped tooth portion is parallel to the axial direction of the shaft hole; the second tooth-shaped portion is also provided with a wedge-shaped tooth portion, which is fixed to the outer wall of the moving housing and is coaxially arranged with the rotating shaft column, and the rack direction of the wedge-shaped tooth portion is parallel to the axial direction of the rotating shaft column; the wedge-shaped tooth portion and the fan-shaped tooth portion cooperate with each other to form a meshing connection.

[0014] As a further solution of the utility model: the racks at both ends of the fan-shaped tooth portion are configured as blocking teeth, and the blocking teeth are used to block the wedge-shaped tooth portion.

[0015] As a further solution of the utility model: the first tooth-shaped portion is arranged on the outer wall of the fixed housing and is located on the radial extension line of the shaft hole; the dynamic housing is provided with an additional disc, and the additional disc is fixed to the end of the rotating shaft column away from the dynamic housing; the second tooth-shaped portion is arranged on the inner side wall of the additional disc facing the dynamic housing and is located on the radial extension line of the rotating shaft column; the dynamic housing is installed in the internal space of the fixed housing, so that the outer wall of the fixed housing and the inner side wall of the additional disc are close to each other, and then the first tooth-shaped portion on the outer wall of the fixed housing and the second tooth-shaped portion on the inner side wall of the additional disc cooperate with each other to form an engaging connection.

[0016] The utility model also provides a lamp, including the above-mentioned rotatable shell that is injection molded to reduce costs, and also includes a mounting bracket, a light-emitting component and a heat dissipation component. The fixed shell of the rotating shell is fixedly connected to the mounting bracket, and the light-emitting component and the heat-dissipating component are respectively fixedly connected to the moving shell, so that the light emitted by the light-emitting component can adjust the illumination angle as the moving shell rotates.

[0017] As a further solution of the utility model: the fixed shell is further provided with an avoidance gap, and the avoidance gap is used to avoid the rotating movable shell or the heat dissipation component rotating therewith.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. When directly producing the shell by injection molding, the integrated molding process is used to mold the first tooth-shaped part of the fixed shell and the second tooth-shaped part of the movable shell, so that when the movable shell is assembled on the fixed shell, the first tooth-shaped part and the second tooth-shaped part can mesh with each other, so that the tooth tops between each other can be embedded in the tooth grooves, so as to achieve the clamping and fixing effect on the movable shell. At the same time, the plastic material has a certain deformation property, so that a certain rotational force can be applied to the movable shell, so that the corresponding tooth tops are deformed to a certain extent, and the tooth tops slide with each other, thereby adjusting the rotation angle of the movable shell, so as to achieve the effect of adjusting the light irradiation angle of the light-emitting component.

[0020] 2. A corresponding first tooth-shaped portion can be provided through the inner wall of the shaft hole, and a second tooth-shaped portion can be provided through the outer wall of the rotating shaft column, so that when the shaft hole is sleeved on the rotating shaft column, the rubber teeth of the corresponding first tooth-shaped portion can form a meshing connection with the rubber teeth of the second tooth-shaped portion, thereby achieving the effect of fixing the movable housing in position and rotating it after applying a certain rotational force.

[0021] 3. The rubber teeth can also be arranged on the inner wall or outer wall of the fixed housing and the outer wall or inner wall of the movable housing to form a meshing connection between the annular teeth and the sharp teeth, thereby realizing intermittent snap-fitting between the movable housing and the fixed housing.

[0022] 4. The rubber teeth can also be arranged on the part of the inner wall of the fixed housing protruding inward to form a fan-shaped tooth portion. Similarly, the rubber teeth can also be arranged on the part of the outer wall of the movable housing extending toward the fan-shaped tooth portion to form a wedge-shaped tooth portion. The intermittent snap-fitting between the movable housing and the fixed housing can be achieved by meshing the fan-shaped tooth portion and the wedge-shaped tooth portion.

[0023] Therefore, through the above improvements, the utility model can provide a rotatable housing and lamp with reduced cost by injection molding, and the corresponding rotating parts can be directly integrally formed when the housing is produced, so that the light-emitting parts of the lamp can be rotated to adjust the corresponding irradiation angle. At the same time, the assembly steps can be simplified, the installation and adjustment modes can be optimized, and the production cost can be reduced.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 It is a schematic diagram of the overall structure of the lamp of the utility model;

[0027] Figure 2 It is a cross-sectional schematic diagram of the rotating shaft column of the utility model;

[0028] Figure 3 It is a cross-sectional schematic diagram of the utility model after the fixed housing and the moving housing are separated;

[0029] Figure 4 It is a cross-sectional schematic diagram of the movable housing of the utility model after rotating a certain angle;

[0030] Figure 5 It is a cross-sectional schematic diagram of the utility model after the additional disc is separated from the fixed shell;

[0031] Figure 6 It is a schematic diagram of the structure in which the fan-shaped tooth portion and the wedge-shaped tooth portion of the utility model are meshed with each other;

[0032] Figure 7 It is a cross-sectional schematic diagram of the additional disc and the fixed housing of the utility model after being assembled;

[0033] Figure 8 yes Figure 7 Schematic diagram of the partially enlarged structure at point A in the middle.

[0034] The reference numerals and names in the figures are as follows:

[0035] 10 fixed housing; 11 first tooth-shaped portion; 12 shaft hole; 13 trapezoidal teeth; 14 fan-shaped teeth; 15 blocking teeth; 16 annular teeth; 17 avoidance gap; 20 movable housing; 21 second tooth-shaped portion; 22 shaft column; 23 rounded teeth; 24 wedge-shaped teeth; 25 additional disc; 26 pointed teeth; 31 mounting bracket; 32 light-emitting component; 33 heat dissipation component; 34 assembly slope; 35 assembly gap; 36 assembly buckle. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 8 In an embodiment of the utility model, a rotatable housing with reduced cost by injection molding includes a fixed housing 10 and a movable housing 20, wherein the movable housing 20 is rotatably connected to the fixed housing 10, the fixed housing 10 is provided with a first tooth-shaped portion 11, and the movable housing 20 is provided with a second tooth-shaped portion 21, and the first tooth-shaped portion 11 and the second tooth-shaped portion 21 are meshed with each other to form an intermittent engagement that can rotate to a certain angle. The first tooth-shaped portion 11 and the second tooth-shaped portion 21 are both made of a material with certain deformation characteristics, so that the two can cooperate with each other to form an engagement connection, so that the movable housing 20 is intermittently engaged with the fixed housing 10, thereby adjusting the rotation angle of the movable housing 20 relative to the fixed housing 10.

[0038] Specifically, the rotatable shell in the above embodiment is usually used to make a lamp, especially for making a downlight, which can conveniently adjust the illumination angle of the downlight. Usually, the downlight also includes a mounting bracket 31, a light-emitting component 32 and a heat-dissipating component 33. The fixed shell 10 of the rotating shell is fixedly connected to the mounting bracket 31, and the light-emitting component 32 and the heat-dissipating component 33 are respectively fixedly connected to the movable shell 20, so that the light emitted by the light-emitting component 32 can adjust the illumination angle with the rotation of the movable shell 20. In order to enrich the illumination angle of the downlight, it is necessary to set the light-emitting component 32 to be able to rotate to a certain angle, so the light-emitting component 32 is usually installed on the movable shell 20, so that the rotation of the movable shell 20 can directly adjust the illumination angle. The connection method and rotation method between the movable shell 20 and the fixed shell 10 can be set in a variety of structures.

[0039] Secondly, in order to further optimize the installation and adjustment mode, the movable housing 20 and the fixed housing 10 can be injection molded by an integrated molding process, and the corresponding toothed parts can also be molded at the required positions. This can reduce production costs and simplify assembly steps. Figure 2 and Figure 3 As shown, an assembly slope 34 can be provided above the shaft hole 12 of the fixed housing 10, that is, the two ends of the shaft column 22 of the movable housing 20 can be directly pushed downward along the assembly slope 34, and the annular side wall of the fixed housing 10 can change a certain shape by utilizing the ductility of the plastic material of the fixed housing 10, so that the shaft column 22 can slide into the shaft hole 12 through the assembly slope 34 to form a rotating connection. Figure 5 As shown, preferably, an assembly notch 35 can be provided above the shaft hole 12, so that the shaft column 22 can be inserted into the rotating hole through the assembly notch 35, so that the shaft column 22 and the rotating hole form a rotational connection. Also, since there is a notch above, it is also necessary to prevent the shaft column 22 from falling off from the shaft hole 12, so an assembly buckle 36 can be provided between the rotating hole and the assembly notch 35, so that it forms a certain limit effect on the shaft column 22 in the rotating hole, and prevents the shaft column 22 from falling off from the notch above.

[0040] Again, the material with certain deformation characteristics can preferably be a plastic material, and preferably, the first tooth-shaped portion 11 and / or the second tooth-shaped portion 21 can be formed on the fixed housing 10 and / or the movable housing 20 at one time through an injection molding process, thereby reducing the production cost. When the movable housing 20 is assembled on the fixed housing 10, the first tooth-shaped portion 11 and the second tooth-shaped portion 21 with certain deformation characteristics can mesh with each other, so that the tooth tops between each other can be embedded in the tooth grooves, thereby achieving the clamping and fixing effect on the movable housing 20. At the same time, the plastic material has certain deformation characteristics, so that a certain rotational force can be applied to the movable housing 20, so that after the corresponding tooth tops are deformed to a certain extent, the tooth tops slide between the tooth tops, and then the rotation angle of the movable housing 20 is adjusted to achieve the effect of adjusting the light irradiation angle of the light-emitting component 32.

[0041] like Figure 4 and Figure 6 As shown, preferably, the fixed housing 10 is further provided with an avoidance notch 17, and the avoidance notch 17 is used to avoid the rotating movable housing 20 or the heat dissipation component 33 that rotates therewith. Specifically, in order to increase the heat dissipation effect on the light-emitting component 32, the size of the heat dissipation component 33 is usually relatively large. When the movable housing 20 is rotated, the heat dissipation component 33 or part of the outer wall of the movable housing 20 may collide with the side wall of the fixed housing 10. Therefore, the side wall of the fixed housing 10 can be provided with an avoidance notch 17 in the corresponding rotation direction, thereby avoiding the collision accident of the rotating housing 20.

[0042] like Figure 3 and Figure 5 As shown, preferably, the fixed housing 10 is provided with an axial hole 12 , and the movable housing 20 is provided with a rotating shaft column 22 , and the axial hole 12 is sleeved on the rotating shaft column 22 , so that the movable housing 20 is rotatably connected to the fixed housing 10 .

[0043] Specifically, the shaft hole 12 and the shaft column 22 can be configured as components of various structures or shapes, mainly to realize the rotatable connection of the movable housing 20 to the fixed housing 10. Figure 3 The embodiment shown in FIG. 1 is a through hole in the side wall of the fixed housing 10, and the shaft column 22 is inserted into the through hole through the assembly ramp 34 to form a rotation connection. Figure 5 As shown, it is another embodiment, in which the shaft hole 12 is a notched hole, and the shaft column 22 can be inserted into the hole through the upper assembly notch 35 to form a rotation connection. In addition, it can be understood that in order to make the movable housing 20 rotate better, corresponding shaft holes 12 and shaft columns 22 can be provided on both opposite sides, so that the movable housing 20 is rotatably connected to the fixed housing 10.

[0044] In one embodiment, if Figures 1 to 3 As shown, preferably, the first tooth-shaped portion 11 is arranged on the inner wall of the shaft hole 12 , and the second tooth-shaped portion 21 is arranged on the outer wall of the shaft column 22 , so that an intermittent clamping is formed between the shaft column 22 and the shaft hole 12 .

[0045] Specifically, the first tooth-shaped portion 11 can be set as trapezoidal teeth 13 and evenly distributed on the inner wall surface of the shaft hole 12, and the second tooth-shaped portion 21 can be set as rounded teeth 23 and evenly distributed on the outer wall surface of the rotating shaft column 22. The trapezoidal teeth 13 and the rounded teeth 23 are meshed with each other, and can be deformed to a certain extent based on the deformation characteristics of the plastic material, so that a certain sliding can be generated between the trapezoidal teeth 13 and the rounded teeth 23, so that the rotating shaft column 22 can rotate a certain angle in the shaft hole 12, and then the movable housing 20 can rotate a certain angle relative to the fixed housing 10, so as to adjust the irradiation angle of the downlight.

[0046] Secondly, when a certain external force is applied to the movable housing 20 to make it rotate, the tooth tops of the corresponding rounded teeth 23 and the tooth tops of the trapezoidal teeth 13 can both be deformed to a certain extent, so that the rounded teeth 23 rotate a certain angle relative to the trapezoidal teeth 13, so that the movable housing 20 can rotate accordingly. After the rotation is completed, the applied external force disappears, and the deformation of the corresponding tooth tops is also restored under the recovery characteristics of the plastic material, so that the tooth tops of the rounded teeth 23 are re-engaged in the tooth grooves of the trapezoidal teeth 13. Similarly, the tooth tops of the trapezoidal teeth 13 are also synchronously engaged in the tooth grooves of the rounded teeth 23, thereby forming a relatively stable locking effect on the movable housing 20, so that the movable housing 20 maintains the current rotation angle, which is equivalent to adjusting the illumination angle of the light-emitting component 32 of the lamp accordingly and fixing it at the current certain angle.

[0047] In another embodiment, if Figure 3 As shown, preferably, the first tooth-shaped portion 11 is arranged on the inner wall of the fixed housing 10 and is located on the radial extension line of the shaft hole 12, and the second tooth-shaped portion 21 is arranged on the outer wall of the movable housing 20 and is located on the radial extension line of the rotating shaft column 22. The movable housing 20 is installed in the internal space of the fixed housing 10, so that the outer wall of the movable housing 20 and the inner wall of the fixed housing 10 are close to each other, and then the second tooth-shaped portion 21 on the outer wall and the first tooth-shaped portion 11 on the inner wall cooperate with each other to form an engaging connection.

[0048] Specifically, the first tooth-shaped portion 11 is located at the position where the radial extension line of the shaft hole 12 intersects with the inner wall of the fixed housing 10; and the second tooth-shaped portion 21 is located at the position where the radial extension line of the shaft column 22 intersects with the outer wall of the movable housing 20, so that the first tooth-shaped portion 11 and the second tooth-shaped portion 21 can be in a state of meshing with each other. Preferably, the second tooth-shaped portion 21 on the outer wall of the movable housing 20 can be set as a fan-shaped tooth portion or an annular tooth portion 16 composed of multiple sharp teeth 26 that rotate around the axis of the shaft column 22 and are evenly distributed, and the first tooth-shaped portion 11 can be set as an independent sharp tooth 26 arranged along the radial direction of the shaft hole 12, and this sharp tooth 26 can rotate between the tooth grooves of the fan-shaped tooth portion or the annular tooth portion 16 composed of multiple sharp teeth 26, thereby realizing the rotation or clamping of the movable housing 20. Similarly, the first tooth-shaped portion 11 may be configured as an annular tooth-shaped portion formed by a plurality of sharp teeth 26, and the first tooth-shaped portion 11 may be configured as an independent sharp tooth 26, and the rotation effect and the locking effect are the same as those of the above solution.

[0049] In yet another embodiment, Figures 3 to 6As shown, preferably, the first tooth-shaped portion 11 is also provided with a fan-shaped tooth portion 14, the fan-shaped tooth portion 14 is fixedly connected to the inner wall of the fixed housing 10, and is coaxially arranged with the shaft hole 12, and the rack direction of the fan-shaped tooth portion 14 is parallel to the axial direction of the shaft hole 12; the second tooth-shaped portion 21 is also provided with a wedge-shaped tooth portion 24, the wedge-shaped tooth portion 24 is fixedly connected to the outer wall of the movable housing 20, and is coaxially arranged with the rotating shaft column 22, and the rack direction of the wedge-shaped tooth portion 24 is parallel to the axial direction of the rotating shaft column 22; the wedge-shaped tooth portion 24 and the fan-shaped tooth portion 14 cooperate with each other to form a meshing connection.

[0050] Specifically, when the shaft hole 12 is sleeved on the shaft column 22, that is, after the movable housing 20 is rotated and connected to the fixed housing 10, the wedge-shaped tooth portion 24 is just inserted into the tooth groove of the fan-shaped tooth portion 14, thereby forming a meshing connection. When a certain external force is applied to the movable housing 20 to make it rotate, the tooth tops of the corresponding wedge-shaped tooth portion 24 and the tooth tops of the fan-shaped tooth portion 14 can both be deformed to a certain extent, so that the wedge-shaped tooth portion 24 slides on the fan-shaped tooth portion 14 by a certain distance or angle, so that the movable housing 20 can rotate accordingly. After the rotation is completed, the applied external force disappears, and the deformation of the corresponding tooth top is also restored under the recovery characteristics of the plastic material, so that the wedge-shaped tooth portion 24 is re-engaged in the tooth groove of the fan-shaped tooth portion 14, thereby forming a relatively stable locking effect on the movable housing 20.

[0051] Secondly, the fan-shaped tooth portion 14 can be arranged to have multiple racks evenly distributed, thereby forming a fan-shaped structure with a certain length and curvature, so that the wedge-shaped tooth portion 24 can be moved on the fan-shaped tooth portion 14 for a certain distance to form a stuck state, so that the movable housing 20 can be rotated at a certain angle relative to the fixed housing 10 to form a relatively stable stuck state. It is understandable that the fan-shaped tooth portion 14 can also be arranged on the second tooth-shaped portion 21, and the wedge-shaped tooth portion 24 can be arranged on the first tooth-shaped portion 11, and the above-mentioned rotational locking effect can also be achieved.

[0052] like Figure 3 As shown, preferably, the racks at both ends of the fan-shaped tooth portion 14 are configured as blocking teeth 15 , and the blocking teeth 15 are used to block the wedge-shaped tooth portion 24 .

[0053] Specifically, the tooth height of the blocking tooth 15 is greater than the tooth height of the rack in the middle part of the fan-shaped tooth portion 14, so that the blocking tooth 15 can form a blocking effect on the wedge-shaped tooth portion 24, preventing the wedge-shaped tooth portion 24 from moving out of the fan-shaped tooth portion 14, thereby causing the dynamic housing 20 to rotate too much and causing damage to the lamp.

[0054] In yet another embodiment, Figure 5 , Figure 7 and Figure 8As shown, preferably, the first tooth-shaped portion 11 is arranged on the outer wall of the fixed housing 10 and is located on the radial extension line of the shaft hole 12; the movable housing 20 is provided with an additional disc 25, and the additional disc 25 is fixed to the end of the rotating shaft column 22 away from the movable housing 20, and the second tooth-shaped portion 21 is arranged on the inner side wall of the additional disc 25 facing the movable housing 20, and is located on the radial extension line of the rotating shaft column 22, and the movable housing 20 is installed in the internal space of the fixed housing 10, so that the outer wall of the fixed housing 10 and the inner side wall of the additional disc 25 are close to each other, and then the first tooth-shaped portion 11 on the outer wall of the fixed housing 10 and the second tooth-shaped portion 21 on the inner side wall of the additional disc 25 cooperate with each other to form an engaged connection.

[0055] Specifically, the first tooth-shaped portion 11 on the outer wall of the fixed housing 10 can be set as a plurality of sharp teeth 26 that rotate around the axis of the shaft hole 12 and are evenly distributed, thereby forming a fan-shaped tooth portion or a semi-annular tooth portion 16. The second tooth-shaped portion 21 can be set as an independent sharp tooth 26 arranged along the radial direction of the rotating shaft column 22, and this sharp tooth 26 can rotate between the tooth grooves of the fan-shaped tooth portion or the semi-annular tooth portion 16 composed of multiple sharp teeth 26, thereby realizing the rotation or clamping of the movable housing 20. Similarly, the second tooth-shaped portion 21 can also be set as a fan-shaped tooth portion or a semi-annular tooth portion 16 formed by multiple sharp teeth 26, and the first tooth-shaped portion 11 can be set as an independent sharp tooth 26, and the rotation effect and the clamping effect are the same as the above scheme.

[0056] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A rotatable housing with reduced cost by injection molding, comprising a fixed housing (10) and a movable housing (20), wherein the movable housing (20) is rotatably connected to the fixed housing (10), characterized in that: The fixed housing (10) is provided with a first toothed portion (11), and the movable housing (20) is provided with a second toothed portion (21); the first toothed portion (11) and the second toothed portion (21) mesh with each other to form an intermittent clamping connection that can rotate at a certain angle.

2. A rotatable housing with reduced cost by injection molding according to claim 1, characterized in that: The first tooth-shaped portion (11) and the second tooth-shaped portion (21) are both made of a material having certain deformation characteristics, so that the two can cooperate with each other to form a meshing connection, thereby allowing the movable housing (20) to be intermittently engaged with the fixed housing (10), thereby adjusting the rotation angle of the movable housing (20) relative to the fixed housing (10).

3. A rotatable housing with reduced cost by injection molding according to claim 1, characterized in that: The fixed housing (10) is provided with an axial hole (12), the movable housing (20) is provided with a rotating shaft column (22), and the axial hole (12) is sleeved on the rotating shaft column (22), so that the movable housing (20) is rotatably connected to the fixed housing (10).

4. A rotatable housing with reduced cost by injection molding according to claim 3, characterized in that: The first tooth-shaped portion (11) is arranged on the inner wall of the shaft hole (12), and the second tooth-shaped portion (21) is arranged on the outer wall of the rotating shaft column (22), so that an intermittent clamping connection is formed between the rotating shaft column (22) and the shaft hole (12).

5. The rotatable housing with reduced cost by injection molding according to claim 3, characterized in that: The first toothed portion (11) is arranged on the inner wall of the fixed housing (10) and is located on the radial extension line of the shaft hole (12); the second toothed portion (21) is arranged on the outer wall of the movable housing (20) and is located on the radial extension line of the rotating shaft column (22); the movable housing (20) is installed in the internal space of the fixed housing (10), so that the outer wall of the movable housing (20) and the inner wall of the fixed housing (10) are close to each other, and the second toothed portion (21) on the outer wall and the first toothed portion (11) on the inner wall cooperate with each other to form a meshing connection.

6. The rotatable housing with reduced cost by injection molding according to claim 3, characterized in that: The first tooth-shaped portion (11) is further provided with a fan-shaped tooth portion (14), the fan-shaped tooth portion (14) being fixedly connected to the inner wall of the fixed housing (10) and being coaxially arranged with the shaft hole (12), and the rack direction of the fan-shaped tooth portion (14) is parallel to the axial direction of the shaft hole (12); the second tooth-shaped portion (21) is further provided with a wedge-shaped tooth portion (24), the wedge-shaped tooth portion (24) being fixedly connected to the outer wall of the movable housing (20) and being coaxially arranged with the rotating shaft column (22), and the rack direction of the wedge-shaped tooth portion (24) is parallel to the axial direction of the rotating shaft column (22); the wedge-shaped tooth portion (24) and the fan-shaped tooth portion (14) cooperate with each other to form a meshing connection.

7. A rotatable housing with reduced cost by injection molding according to claim 6, characterized in that: The toothed racks at both ends of the fan-shaped tooth portion (14) are configured as blocking teeth (15), and the blocking teeth (15) are used to block the wedge-shaped tooth portion (24).

8. The rotatable housing with reduced cost by injection molding according to claim 3, characterized in that: The first toothed portion (11) is arranged on the outer wall of the fixed housing (10) and is located on the radial extension line of the shaft hole (12); the movable housing (20) is provided with an additional disc (25), the additional disc (25) is fixedly connected to one end of the rotating shaft column (22) away from the movable housing (20); the second toothed portion (21) is arranged on the inner side wall of the additional disc (25) facing the movable housing (20) and is located on the radial extension line of the rotating shaft column (22); the movable housing (20) is installed in the internal space of the fixed housing (10), so that the outer wall of the fixed housing (10) and the inner side wall of the additional disc (25) are close to each other, so that the first toothed portion (11) on the outer wall of the fixed housing (10) and the second toothed portion (21) on the inner side wall of the additional disc (25) are matched with each other to form a meshing connection.

9. A lamp, characterized in that: A rotatable shell with reduced cost by injection molding according to any one of claims 1 to 8, further comprising a mounting bracket (31), a light emitting component (32) and a heat dissipation component (33), wherein the fixed shell (10) of the rotatable shell is fixedly connected to the mounting bracket (31), and the light emitting component (32) and the heat dissipation component (33) are respectively fixedly connected to the movable shell (20), so that the light emitted by the light emitting component (32) can adjust the illumination angle as the movable shell (20) rotates.

10. The lamp according to claim 9, characterized in that: The fixed housing (10) is further provided with an avoidance notch (17), and the avoidance notch (17) is used to avoid the rotating movable housing (20) or the heat dissipation component (33) rotating therewith.

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