Spray painting fixture

Abstract

This utility model discloses a spray painting fixture for fixing a back plate. The spray painting fixture includes a top cover and a fixing assembly. A base mates with the side of the back plate opposite to the receiving cavity; the top cover is housed within the receiving cavity and serves to shield the inner bottom wall of the base plate and avoid the inner side wall of the side plate; the fixing assembly is connected to both the base and the top cover, fixing the base and the top cover so that the back plate is fixed between the base and the top cover. This spray painting fixture prevents light-blocking paint from being sprayed onto the inner side wall of the base plate, ensuring product consistency.

Description

Technical Field

[0001] This utility model relates to the field of jig technology, and in particular to a paint spraying jig. Background Technology

[0002] An in-vehicle display is a device installed inside a car to provide various information displays. With the development of automotive intelligence, the functions of in-vehicle displays are becoming more and more diversified, and the requirements for the display effect of in-vehicle displays are also becoming higher and higher. Among them, the backlight module of the in-vehicle display is mainly used to provide backlight illumination for the display screen.

[0003] Typically, a backlight module mainly includes a backplate, a light source, and a light guide assembly. The backplate defines a cavity, and both the light source and the light guide assembly are installed within the cavity. The light source emits light to the light guide assembly, and the light guide assembly converts the light emitted by the light source into a surface light source and projects it outward. During the propagation of light within the cavity, some light may leak outward through the side panels of the backplate.

[0004] In related technologies, a light-blocking paint is sprayed onto the inner wall of the side panel to absorb light incident on the side panel and prevent light leakage. However, during the spraying process, the light-blocking paint is easily sprayed onto the inner wall of the base plate, resulting in poor product consistency. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a spray painting fixture that can prevent blackout paint from being sprayed onto the inner wall of the base plate, ensuring product consistency.

[0006] This utility model embodiment provides a spray painting fixture for fixing the back plate of a backlight module. The back plate includes a bottom plate and a side plate, with the side plate connected to the side of the bottom plate. The bottom plate and the side plate together define an accommodating cavity. The spray painting fixture includes:

[0007] The base mates with the side of the back plate opposite to the receiving cavity;

[0008] The top cover is housed in the receiving cavity and is used to cover the inner bottom wall of the base plate and avoid the inner side wall of the side plate.

[0009] The fixing components are connected to the base and the top cover respectively. The fixing components are used to fix the base and the top cover so that the back plate is fixed between the base and the top cover.

[0010] The spray painting fixture according to the embodiments of this utility model has at least the following beneficial effects:

[0011] By covering the inner bottom wall of the base plate with the top cover while avoiding the inner side wall of the side plate, the inner side wall of the side plate can be exposed to reveal the receiving cavity, which facilitates subsequent painting of the inner side wall of the side plate. This prevents the light-blocking paint from being sprayed onto the inner bottom wall of the base plate, avoiding accidental spraying and ensuring the consistency of the product after painting, which is beneficial to improving the painting quality of the back plate.

[0012] According to the present invention, the paint spraying fixture has a base with a first positioning structure and a bottom plate with a second positioning structure, and the first positioning structure and the second positioning structure are positioned and cooperate with each other.

[0013] According to the present invention, the base of the spray painting fixture is provided with a plurality of third positioning structures, which are respectively located on the side of the base away from the upper cover. The third positioning structures are used to position and cooperate with the first mating structure of the lower seat of the spray painting equipment.

[0014] According to the present invention, the base of the spray painting fixture is further provided with a fourth positioning structure. The fourth positioning structure is located on the side of the base away from the upper cover. The geometric center of the fourth positioning structure coincides with that of the back plate. The fourth positioning structure is used to position and cooperate with the second mating structure of the lower seat of the spray painting equipment and to limit the base from deflecting relative to the lower seat.

[0015] According to the present invention, the spray painting fixture has a plurality of fifth positioning structures on the upper cover. The plurality of fifth positioning structures are respectively located on the side of the upper cover away from the base. The fifth positioning structures are used to position and cooperate with the third mating structure of the upper seat of the spray painting equipment.

[0016] According to the present invention, the spray painting fixture is provided with a sixth positioning structure on the upper cover. The sixth positioning structure is located on the side of the upper cover away from the base. The geometric center of the sixth positioning structure coincides with that of the back plate. The sixth positioning structure is used to position and cooperate with the fourth mating structure of the upper seat of the spray painting equipment and to limit the deflection of the upper cover relative to the upper seat.

[0017] According to the present invention, the spray painting fixture has a back plate defining a through groove that communicates with a receiving cavity, a base defining a first fixing hole, and a top cover defining a second fixing hole. The first fixing hole, the through groove, and the second fixing hole are connected. A fixing component passes through the first fixing hole, the through groove, and the second fixing hole and fixes the base, the back plate, and the top cover.

[0018] According to the present utility model, the spray painting fixture includes a first fixing member and a second fixing member. The first fixing member abuts against the side of the base away from the top cover, and the second fixing member abuts against the side of the top cover away from the base. At least one of the first fixing member and the second fixing member passes through the first fixing hole, the through groove and the second fixing hole, and is detachably connected to the other.

[0019] According to the present utility model embodiment of the spray painting fixture, the first fixing member includes a first abutting part and a first threaded part, the first abutting part is connected to the first threaded part, and the first abutting part abuts against the side of the base away from the upper cover;

[0020] The second fastener includes a second abutting portion and a second threaded portion. The second abutting portion is connected to the second threaded portion. The second abutting portion abuts against the side of the upper cover away from the base. At least one of the first threaded portion and the second threaded portion passes through the first fixing hole, the through groove, and the second fixing hole.

[0021] According to the paint spraying fixture of the present utility model, the first fixing member further includes a first torsion part, which is connected to the first abutment part and is used to assist in torsion of the first fixing member;

[0022] The second fastener also includes a second torsion part, which is connected to the second abutment part and is used to assist in torsion of the second fastener.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 This is a perspective view of the structure of the paint spraying fixture and the back plate in one embodiment of the present invention;

[0026] Figure 2 for Figure 1 The diagram shown is an exploded view of the spray painting fixture and back plate.

[0027] Figure 3 for Figure 1 The exploded view of the paint spraying fixture and back panel from another angle;

[0028] Figure 4 for Figure 1 A bottom view showing the base and backplate in tandem;

[0029] Figure 5 for Figure 1 The top view showing the fit between the top cover and the back panel;

[0030] Figure 6 for Figure 1 A cross-sectional view of the structure along the AA direction.

[0031] Figure label:

[0032] Spray painting fixture 1;

[0033] Base 11; First positioning structure 101; Third positioning structure 102; Fourth positioning structure 103; First fixing hole 110; Top cover 12; Fifth positioning structure 104; Sixth positioning structure 105; Second fixing hole 120; Fixing assembly 13; First fixing member 131; First abutting part 1311; First threaded part 1312; First torsion part 1313; Second fixing member 132; Second abutting part 1321; Second threaded part 1322; Second torsion part 1314;

[0034] Back panel 2;

[0035] Base plate 21; inner bottom wall 211; second positioning structure 201; side plate 22; inner bottom wall 211; accommodating cavity 210; through groove 220. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Please see Figures 1 to 3 This utility model embodiment provides a spray painting fixture 1, which is used to fix the back plate 2 of the backlight module so that the spray painting equipment can spray paint the inner side wall 221 of the side plate 22.

[0042] The back plate 2 includes a bottom plate 21 and a side plate 22. The side plate 22 is connected to the side of the bottom plate 21. The bottom plate 21 and the side plate 22 together define the receiving cavity 210. The bottom plate 21 is rectangular and the four sides of the bottom plate 21 are respectively connected to the side plate 22.

[0043] The paint spraying fixture 1 includes a base 11, a top cover 12, and a fixing assembly 13. The base 11 mates with the side of the back plate 2 opposite to the receiving cavity 210. The top cover 12 is housed in the receiving cavity 210 and serves to cover the inner bottom wall 211 of the base plate 21 and avoid the inner side wall 221 of the side plate 22. The fixing assembly 13 is connected to both the base 11 and the top cover 12 and serves to fix the base 11 and the top cover 12.

[0044] In practical applications, after fixing the back plate 2 to the base 11 and the top cover 12, the painting fixture 1 and the back plate 2 are placed in the painting equipment, and the base 11 and the top cover 12 are fixed to the painting equipment, thereby fixing the position of the back plate 2 relative to the painting equipment, so as to facilitate subsequent painting of the inner wall 221 of the side plate 22. Of course, after the back plate 2 is fixed to the base 11 and the top cover 12, the inner wall 221 of the side plate 22 can also be painted manually.

[0045] In this embodiment of the utility model, by making the upper cover 12 block the inner bottom wall 211 of the base plate 21 while avoiding the inner side wall 221 of the side plate 22, the inner side wall 221 of the side plate 22 can be exposed to the receiving cavity 210, so as to facilitate the subsequent painting treatment of the inner side wall 221 of the side plate 22, preventing the light-blocking paint from being sprayed onto the inner bottom wall 211 of the base plate 21, avoiding accidental spraying, thereby ensuring the consistency of the product after painting, which is beneficial to improving the painting quality of the back plate 2.

[0046] Furthermore, by fixing the base 11 and the top cover 12 with the fixing component 13, it is possible to prevent the back plate 2 from shifting relative to the base 11 and the top cover 12 during the moving of the paint spraying fixture 1 or during the painting process, thereby further ensuring product consistency and further improving the painting quality of the back plate 2.

[0047] Please see Figure 2 and Figure 3 In some embodiments, the base 11 is provided with a first positioning structure 101, and the base plate 21 is provided with a second positioning structure 201. The first positioning structure 101 and the second positioning structure 201 are positioned and cooperated, so that the back plate 2 can be accurately installed on the base 11, ensuring the fitting accuracy between the back plate 2 and the base 11. This facilitates the positioning of the back plate 2 on the painting equipment when the back plate 2 is installed on the painting equipment through the base 11 and the top cover 12, which in turn facilitates the painting equipment to accurately spray the light-shielding paint onto the inner sidewall 221 of the side plate 22.

[0048] In one embodiment, the first positioning structure 101 is a first positioning groove, and the second positioning structure 201 is a first positioning protrusion. The positions of the first positioning groove and the first positioning protrusion are corresponding. When the first positioning protrusion is inserted into the first positioning groove, the positioning between the base 11 and the back plate 2 can be achieved. Its structure is simple and easy to disassemble and assemble.

[0049] Of course, in some other embodiments, the first positioning structure 101 may also be a first positioning protrusion, and the second positioning structure 201 may also be a first positioning groove.

[0050] It is understandable that when the top cover 12 is housed in the receiving cavity 210 of the back plate 2, the inner sidewall 221 of the side plate 22 surrounds the periphery of the top cover 12. The inner sidewall 221 of the side plate 22 can restrict the translation of the top cover 12 relative to the back plate 2. That is, the inner sidewall 221 of the side plate 22 can be used to position the top cover 12 in the receiving cavity 210. Therefore, it is unnecessary to provide an additional positioning structure between the top cover 12 and the back plate 2.

[0051] Understandably, when the base 11 is installed on the lower seat of the painting equipment, it needs to be positioned correctly to ensure that the base 11 is in the correct position each time it is installed on the lower seat. Therefore, please refer to... Figure 3In some embodiments, the base 11 is provided with multiple third positioning structures 102, which are respectively located on the side of the base 11 away from the upper cover 12. Each third positioning structure 102 is used to position and engage with a first mating structure of the lower seat of the painting equipment. One third positioning structure 102 corresponds to one first mating structure, and each third positioning structure 102 is positioned and engaged with its corresponding first mating structure. Since there are multiple third positioning structures 102 and first mating structures, when each third positioning structure 102 is positioned and engaged with each first mating structure, the multiple third positioning structures 102 can disperse the shear force between the base 11 and the lower seat, preventing the shear force from concentrating at one point. This helps extend the service life of the base 11 and can, to a certain extent, limit the translational movement of the base 11 relative to the lower seat.

[0052] In one embodiment, the third positioning structure 102 is a second positioning protrusion that defines a second positioning groove. The first mating structure is a third positioning protrusion. The positions of the second positioning groove and the third positioning protrusion correspond to each other. When the third positioning protrusion is inserted into the second positioning groove, the positioning between the base 11 and the lower seat can be achieved. Its structure is simple and easy to assemble and disassemble.

[0053] Of course, in some other embodiments, the third positioning structure 102 may also be the second positioning protrusion, and the first mating structure may also be the second positioning groove. The positions of the second positioning protrusion and the second positioning groove are corresponding, and the second positioning protrusion is inserted into the second positioning groove.

[0054] In one embodiment, both the second positioning protrusion and the third positioning protrusion are cylinders, and the second positioning groove is a cylindrical groove.

[0055] Of course, in other embodiments, the second positioning protrusion, the second positioning groove, and the third positioning protrusion may also be in other compatible shapes. For example, the second positioning protrusion and the third positioning protrusion may both be square prisms, and the second positioning groove may be a square prism groove.

[0056] During the painting process, after painting the inner wall 221 of the side plate 22 on one side of the base plate 21, the painting fixture 1 needs to be removed from the painting equipment, rotated 90°, and then repositioned and installed back into the painting equipment. The lower base has two sets of first mating structures. Each set of first mating structures can successively engage with multiple third positioning structures 102 on the base 11. After rotating one set of first mating structures 90°, its position coincides with the position of another set of first mating structures. Since there are multiple third positioning structures 102 and multiple sets of first mating structures, it is difficult to guarantee that multiple third positioning structures 102 can perfectly engage with each set of first mating structures. Therefore, the fit between the third positioning structures 102 and the first mating structures needs to be designed as a clearance fit to ensure that multiple third positioning structures 102 can engage with each set of first mating structures. However, a clearance fit will reduce the positioning accuracy between the base 11 and the lower base.

[0057] In view of this, please refer to Figure 4 In some embodiments, the base 11 is also provided with a fourth positioning structure 103, which is located on the side of the base 11 away from the upper cover 12. The fourth positioning structure 103 and the back plate 2 coincide in geometric center. The fourth positioning structure 103 is used to position and cooperate with the second mating structure of the lower seat of the painting equipment and to limit the base 11 from deflecting relative to the lower seat.

[0058] With the above settings, after the paint spraying fixture 1 rotates 90°, the fourth positioning structure 103 is always located at the geometric center of the back plate 2, so that the fourth positioning structure 103 can still be positioned and engaged with the second mating structure on the lower seat after rotation, avoiding misalignment between the fourth positioning structure 103 and the second mating structure due to rotation, ensuring the positioning accuracy between the base 11 and the lower seat, allowing the fit between the third positioning structure 102 and the first mating structure to be a clearance fit, and preventing the base plate 21 from deflecting relative to the lower seat through this clearance fit.

[0059] In one embodiment, the fourth positioning structure 103 is a fourth positioning protrusion that defines a third positioning groove. The second mating structure is a fifth positioning protrusion. The third positioning groove and the fifth positioning protrusion are positioned correspondingly. When the fifth positioning protrusion is inserted into the third positioning groove, further positioning between the base 11 and the lower seat can be achieved. The structure is simple and easy to assemble and disassemble.

[0060] In one embodiment, the third positioning groove is a square column groove and the fifth positioning protrusion is a square column. In this way, when the square column is inserted into the square column groove, the base 11 can be restricted from deflecting relative to the lower seat.

[0061] Of course, in some other embodiments, the third positioning groove and the fifth positioning protrusion may also be in other compatible shapes. For example, the third positioning groove is a regular octagonal column groove and the fifth positioning protrusion is a regular octagonal column.

[0062] In one embodiment, there are four second positioning protrusions, and the four vertices of the four second positioning protrusions are distributed around the periphery of the fourth positioning protrusion.

[0063] Of course, in some other embodiments, the fourth positioning structure 103 may also be a fourth positioning protrusion, and the second mating structure may also be a third positioning groove. The positions of the fourth positioning protrusion and the third positioning groove are corresponding, and the fourth positioning protrusion is inserted into the third positioning groove.

[0064] Understandably, when the upper cover 12 is installed on the upper seat of the painting equipment, it needs to be positioned correctly to ensure that the upper cover 12 is always in the correct position when installed on the upper seat. Therefore, please refer to... Figure 2 In some embodiments, the upper cover 12 is provided with a plurality of fifth positioning structures 104, which are respectively located on the side of the upper cover 12 away from the base 11. The fifth positioning structures 104 are used to position and engage with the third mating structure of the upper seat of the painting equipment. One fifth positioning structure 104 corresponds to one third mating structure, and each fifth positioning structure 104 is positioned and engaged with its corresponding third mating structure. Since there are multiple fifth positioning structures 104 and third mating structures, when each fifth positioning structure 104 is positioned and engaged with each third mating structure, the multiple fifth positioning structures 104 can disperse the shear force between the upper cover 12 and the upper seat, avoiding the concentration of shear force between the upper cover 12 and the upper seat in one place, which is beneficial to extending the service life of the upper cover 12, and can also limit the translation of the upper cover 12 relative to the upper seat to a certain extent.

[0065] In one embodiment, the fifth positioning structure 104 is a sixth positioning protrusion, which defines a fourth positioning groove. The third mating structure is a seventh positioning protrusion, and the positions of the fourth positioning groove and the seventh positioning protrusion correspond to each other. When the seventh positioning protrusion is inserted into the fourth positioning groove, the positioning between the upper cover 12 and the upper seat can be achieved. Its structure is simple and easy to disassemble and assemble.

[0066] Of course, in some other embodiments, the fifth positioning structure 104 may also be the sixth positioning protrusion, and the third mating structure may also be the fourth positioning groove. The positions of the sixth positioning protrusion and the fourth positioning groove are corresponding, and the sixth positioning protrusion is inserted into the fourth positioning groove.

[0067] In one embodiment, the sixth positioning protrusion and the seventh positioning protrusion are both cylinders, and the fourth positioning groove is a cylindrical groove.

[0068] Of course, in some other embodiments, the sixth positioning protrusion, the fourth positioning groove and the seventh positioning protrusion may also be in other compatible shapes. For example, the fifth positioning protrusion and the sixth positioning protrusion are both square prisms and the fourth positioning groove is a square prism groove.

[0069] During the painting process, after painting the inner wall 221 of the side plate 22 on one side of the base plate 21, the painting fixture 1 needs to be removed from the painting equipment, rotated 90°, and then repositioned and installed back into the painting equipment. The upper seat has two sets of third mating structures. Each set of third mating structures can successively engage with multiple fifth positioning structures 104 on the upper cover 12. After rotating one set of third mating structures 90°, its position coincides with that of another set of third mating structures. Since there are multiple fifth positioning structures 104 and multiple sets of third mating structures, it is difficult to guarantee that multiple fifth positioning structures 104 can perfectly engage with each set of third mating structures. Therefore, the fit between the fifth positioning structures 104 and the third mating structures needs to be designed as a clearance fit to ensure that multiple fifth positioning structures 104 can engage with each set of third mating structures. However, a clearance fit will reduce the positioning accuracy between the base 11 and the lower seat.

[0070] In view of this, please refer to Figure 5 In some embodiments, the upper cover 12 is also provided with a sixth positioning structure 105, which is located on the side of the upper cover 12 away from the base 11. The geometric center of the sixth positioning structure 105 coincides with that of the back plate 2. The sixth positioning structure 105 is used to position and cooperate with the fourth mating structure of the upper seat of the painting equipment and to limit the upper cover 12 from deflecting relative to the upper seat.

[0071] With the above settings, after the paint spraying fixture 1 rotates 90°, the sixth positioning structure 105 is always located at the geometric center of the back plate 2, so that the sixth positioning structure 105 can still be positioned and engaged with the fourth mating structure on the upper seat after rotation, avoiding misalignment between the sixth positioning structure 105 and the fourth mating structure due to rotation, ensuring the positioning accuracy between the upper cover 12 and the upper seat, allowing the fifth positioning structure 104 and the third mating structure to be designed as a clearance fit, and preventing the upper cover 12 from deflecting relative to the upper seat through this clearance fit.

[0072] In one embodiment, the sixth positioning structure 105 is the eighth positioning protrusion, which defines the fifth positioning groove. The fourth mating structure is the ninth positioning protrusion, and the positions of the fifth positioning groove and the ninth positioning protrusion correspond to each other. When the ninth positioning protrusion is inserted into the fifth positioning groove, further positioning between the upper cover 12 and the upper seat can be achieved. Its structure is simple and easy to disassemble and assemble.

[0073] In one embodiment, the fifth positioning groove is a square column groove and the ninth positioning protrusion is a square column. In this way, when the square column is inserted into the square column groove, the deflection of the upper cover 12 relative to the upper seat can be restricted.

[0074] Of course, in some other embodiments, the fifth positioning groove and the ninth positioning protrusion may also be in other compatible shapes. For example, the fifth positioning groove is a regular octagonal groove and the ninth positioning protrusion is a regular octagonal prism.

[0075] In one embodiment, there are four sixth positioning protrusions, and the four vertices of the four sixth positioning protrusions are distributed around the periphery of the eighth positioning protrusion.

[0076] Of course, in some other embodiments, the sixth positioning structure 105 may also be the eighth positioning protrusion, and the fourth mating structure may also be the fifth positioning groove. The positions of the eighth positioning protrusion and the fifth positioning groove are corresponding, and the eighth positioning protrusion is inserted into the fifth positioning groove.

[0077] Please see Figure 2 , Figure 3 and Figure 6 In some embodiments, the back plate 2 defines a through groove 220 that communicates with the receiving cavity 210, the base 11 defines a first fixing hole 110, and the top cover 12 defines a second fixing hole 120. The first fixing hole 110, the through groove 220, and the second fixing hole 120 communicate with each other. The fixing component 13 passes through the first fixing hole 110, the through groove 220, and the second fixing hole 120, and fixes the base 11, the back plate 2, and the top cover 12. In this way, the back plate 2 can be fixed between the base 11 and the top cover 12.

[0078] Please see Figure 5 In some embodiments, the fixing component 13 includes a first fixing member 131 and a second fixing member 132. The first fixing member 131 abuts against the side of the base 11 opposite to the top cover 12, and the second fixing member 132 abuts against the side of the top cover 12 opposite to the base 11. At least one of the first fixing member 131 and the second fixing member 132 passes through the first fixing hole 110, the through groove 220 and the second fixing hole 120, and is detachably connected to the other.

[0079] By dividing the fixing component 13 into a first fixing member 131 and a second fixing member 132, the base 11, the back plate 2 and the top cover 12 can be fixed when the first fixing member 131 and the second fixing member 132 are connected, and the mutual fixation between the base 11, the back plate 2 and the top cover 12 can be released when the first fixing member 131 and the second fixing member 132 are separated.

[0080] Specifically, when the first fixing member 131 abuts against the base 11 and the second fixing member 132 abuts against the top cover 12, and the first fixing member 131 and the second fixing member 132 are connected, the base 11 and the top cover 12 can be clamped on opposite sides of the back plate 2, thereby restricting the base 11 and the top cover 12 from moving away from the back plate 2, and thus achieving mutual fixation between the base 11, the back plate 2 and the top cover 12.

[0081] In some embodiments, the first fixing member 131 includes a first abutting portion 1311 and a first threaded portion 1312, the first abutting portion 1311 being connected to the first threaded portion 1312, and the first abutting portion 1311 abutting against the side of the base 11 opposite to the upper cover 12. The second fixing member 132 includes a second abutting portion 1321 and a second threaded portion 1322, the second abutting portion 1321 being connected to the second threaded portion 1322, and the second abutting portion 1321 abutting against the side of the upper cover 12 opposite to the base 11, and at least one of the first threaded portion 1312 and the second threaded portion 1322 passing through the first fixing hole 110, the through groove 220, and the second fixing hole 120.

[0082] By providing a first threaded portion 1312 on the first fixing member 131 and a second threaded portion 1322 on the second fixing member 132, a detachable connection between the first fixing member 131 and the second fixing member 132 can be achieved, which facilitates the installation and removal of the back plate 2 between the base 11 and the top cover 12. Furthermore, the threaded connection method has high reliability and is conducive to locking the back plate 2 between the base 11 and the top cover 12.

[0083] In one embodiment, the first threaded portion 1312 is an internal thread, and the second threaded portion 1322 is an external thread.

[0084] In some embodiments, the first fastener 131 further includes a first torsion portion 1313, which is connected to the first abutment portion 1311 and is used to assist in torsion of the first fastener 131. The second fastener 132 further includes a second torsion portion 1314, which is connected to the second abutment portion 1321 and is used to assist in torsion of the second fastener 132.

[0085] By providing a first torsion part 1313 on the first fixing member 131 and a second torsion part 1314 on the second fixing member 132, a force application point can be provided for the operator, making it easy to tighten the threaded engagement between the first fixing member 131 and the second fixing member 132, or to release the threaded engagement between the first fixing member 131 and the second fixing member 132.

[0086] Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this utility model. Furthermore, embodiments of this utility model and features thereof can be combined with each other, unless otherwise specified.

Claims

1. A spray painting fixture for fixing a backplate of a backlight module, the backplate comprising a base plate and a side plate, the side plate being connected to the side of the base plate, the base plate and the side plate together defining an accommodating cavity, characterized in that, include: A base that mates with the side of the back plate opposite to the receiving cavity; The top cover is housed in the receiving cavity and is used to cover the inner bottom wall of the bottom plate and avoid the inner side wall of the side plate. A fixing component is provided, which is connected to the base and the top cover respectively. The fixing component is used to fix the base and the top cover so that the back plate is fixed between the base and the top cover.

2. The paint application fixture of claim 1, wherein, The base is provided with a first positioning structure, and the bottom plate is provided with a second positioning structure, with the first positioning structure and the second positioning structure being positioned and engaged.

3. The paint application fixture of claim 1, wherein, The base is provided with multiple third positioning structures, which are located on the side of the base away from the upper cover. The third positioning structures are used to position and cooperate with the first mating structure of the lower seat of the painting equipment.

4. The paint fixture of claim 3, wherein, The base is also provided with a fourth positioning structure, which is located on the side of the base away from the upper cover. The geometric center of the fourth positioning structure coincides with that of the back plate. The fourth positioning structure is used to position and cooperate with the second mating structure of the lower seat of the painting equipment and to limit the base from deflecting relative to the lower seat.

5. The paint fixture of claim 1, wherein, The upper cover is provided with a plurality of fifth positioning structures, which are respectively located on the side of the upper cover away from the base. The fifth positioning structures are used to position and cooperate with the third mating structure of the upper seat of the painting equipment.

6. The paint fixture of claim 5, wherein, The upper cover is also provided with a sixth positioning structure, which is located on the side of the upper cover away from the base. The geometric center of the sixth positioning structure coincides with that of the back plate. The sixth positioning structure is used to position and cooperate with the fourth mating structure of the upper seat of the painting equipment and to limit the deflection of the upper cover relative to the upper seat.

7. The paint fixture of claim 1, wherein, The back plate defines a through groove that communicates with the receiving cavity. The base defines a first fixing hole, and the top cover defines a second fixing hole. The first fixing hole, the through groove, and the second fixing hole communicate with each other. The fixing component passes through the first fixing hole, the through groove, and the second fixing hole and fixes the base, the back plate, and the top cover.

8. The paint fixture of claim 7, wherein, The fixing component includes a first fixing member and a second fixing member. The first fixing member abuts against the side of the base opposite to the top cover, and the second fixing member abuts against the side of the top cover opposite to the base. At least one of the first fixing member and the second fixing member passes through the first fixing hole, the through groove and the second fixing hole, and is detachably connected to the other.

9. The paint fixture of claim 8, wherein, The first fixing member includes a first abutting part and a first threaded part, the first abutting part is connected to the first threaded part, and the first abutting part abuts against the side of the base away from the upper cover; The second fixing member includes a second abutting part and a second threaded part. The second abutting part is connected to the second threaded part. The second abutting part abuts against the side of the upper cover away from the base. At least one of the first threaded part and the second threaded part passes through the first fixing hole, the through groove and the second fixing hole.

10. The paint fixture of claim 9, wherein, The first fixing member further comprises a first torsion part connected to the first abutting part, and the first torsion part is used for assisting in torsion of the first fixing member. The second fixing member further comprises a second torsion part connected to the second abutting part, and the second torsion part is used for assisting in torsion of the second fixing member.

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