Precise door lock structure
Through precision equipment and mold design, combined with hardware circuit and injection molding technology, the complexity and stability problems in the production of automotive door lock components have been solved, a high-precision, high-yield door lock structure has been achieved, and production costs have been reduced.
Patent Information
- Application Number
- CN202422900875.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing technologies make it difficult to manufacture high-precision, complex-function automotive door lock components, especially insert-molding parts, which face production difficulties, low yield rates, and high costs. In addition, plastic products are prone to shrinkage and deformation after injection molding, resulting in dimensional instability and functional failure.
Using sophisticated bending auxiliary equipment, parting equipment and pin cutting equipment, combined with hardware circuits, pins, resistors, switches and pre-injection molded parts, a high-precision door lock structure is achieved through precision mold design, including the first and second hardware circuits, pin blocks, limit blocks and resistor teeth, etc., to ensure stable circuit connection and accurate injection molding.
It achieves high-precision door lock assembly production, solves production problems, improves yield rate and reduces costs, and meets the experimental needs of complex functions.
Smart Images
Figure CN223434197U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of plastic product design and manufacture, especially relates to a precise door lock structure. BACKGROUND
[0002] With the rapid development of plastic industry and mould processing and manufacturing technology, people have more and more expectations for the lightweight of various products in life, and the application range and demand of plastic products are continuously expanding.
[0003] With the increasing functional requirements and safety performance of automobiles, especially the door lock parts as one of the important parts of automobiles, the functional and technical requirements are increasing. The functional requirements of Insert-molding parts (plastic containing complex hardware circuit) are diversified, and the environmental experiment requirements are harsh. Especially for the same product to realize different circuits, the structure design of Insert-molding parts is complex, the production and manufacturing are difficult, the yield is low, the cost is high, and it belongs to the industry problem.
[0004] This case describes the precise door lock product that realizes different circuits for the same product and meets different requirements. The traditional door lock product design size precision and functional requirements are relatively simple, and the mould making is relatively easy. The door lock function requirement in the case is complex, the overall circuit needs to be realized through the pin and the parting to realize different circuits to meet the functional requirements, and due to the limitation of the space inside, the structure is relatively special-shaped, and the structure is unusual. Therefore, it cannot be realized through the conventional mould structure. At the same time, due to the uneven shrinkage and inconsistent molecular orientation in the plastic injection processing, the plastic product will exist shrinkage deformation after injection molding, which leads to unstable size and functional failure. INVENTION CONTENTS
[0005] The utility model mainly solves the technical problem to provide a precise door lock structure, simplifies the mould structure, then through the precise bending auxiliary equipment, the precise parting equipment and the cutting Pin equipment, obtains the final high-precision door lock assembly part that meets the functional experiment demand and the experiment requirement, finally mass production, solves the industry problem.
[0006] To solve the above technical problems, the utility model adopts one technical scheme, which provides a precise door lock structure, including hardware circuit, pin, resistance, switch, pre -injection part and injection part, the hardware circuit includes first hardware circuit and second hardware circuit, the pin needle installation side of first hardware circuit is provided with a plurality of first pin block, the pin needle installation side of second hardware circuit is provided with a plurality of second pin block, the pin includes first pin and second pin, the first pin is inserted with first pin block corresponding by first pin needle, the second pin is corresponding by second pin needle with second pin block, first hardware circuit and second hardware circuit are fixed by pre -injection part combination, a plurality of sets of two two corresponding resistance teeth are arranged on the first hardware circuit, the resistance line of resistance both ends is corresponding with the clamping groove of the top of any group of resistance teeth respectively, and any group resistance tooth top is fixed resistance line by resistance tooth pressure head pressure after leaning towards, the switch is provided with a plurality of and is fixed on the injection part with pre -injection part.
[0007] In a preferred embodiment of the utility model, the first hardware circuit is provided with a corresponding first pin positioning hole in front of the plurality of first pin blocks, and the first pin positioning holes are distributed at equal intervals.
[0008] In a preferred embodiment of the utility model, the second hardware circuit is provided with a corresponding second pin positioning hole in front of the plurality of second pin blocks, and the second pin positioning holes are distributed at equal intervals.
[0009] In a preferred embodiment of the utility model, the inner side of the first pin and the second pin is provided with a knurl structure respectively.
[0010] In a preferred embodiment of the utility model, the first hardware circuit is provided with a first limiting block corresponding to the end of the first pin, and the second hardware circuit is provided with a second limiting block corresponding to the end of the second pin.
[0011] In a preferred embodiment of the utility model, the hardware circuit is further provided with a plurality of positioning bosses corresponding to the switch.
[0012] In a preferred embodiment of the utility model, a plurality of supporting columns are provided on the pre-injection part, and the outer side of any supporting column is provided with a chamfer, and a plurality of switch tooth positioning holes are further provided on the pre-injection part.
[0013] In a preferred embodiment of the utility model, the switch tooth of the switch is glue sealingly arranged, and the glue thickness covers the hardware circuit by at least 1mm.
[0014] The utility model discloses a beneficial effect is: the utility model discloses a kind of precision door lock structure, simplify mould structure, then through the bending auxiliary equipment of precision, precision parting equipment and Pin equipment of cutting, obtain the final high-precision door lock assembly that satisfies functional experiment demand and experimental requirement, mass production finally, solve industry problem. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment description will be simply introduced as follows, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, wherein:
[0016] Figure 1 It is a preferred embodiment of the utility model a precision door lock structure is the perspective view of five metal circuits;
[0017] Figure 2 It is a preferred embodiment of the utility model a precision door lock structure is the structure schematic view of five metal circuits;
[0018] Figure 3 It is Figure 2 The structure schematic view of first five metal circuits in it;
[0019] Figure 4 It is Figure 3 The local enlarged view of A part of it;
[0020] Figure 5 It is Figure 2 The structure schematic view of second five metal circuits in it;
[0021] Figure 6 It is Figure 5 The local enlarged view of B part of it;
[0022] Figure 7 It is the local enlarged view of resistance part of a preferred embodiment of the utility model a precision door lock structure;
[0023] Figure 8 It is Figure 7 The front view of resistance tooth in it;
[0024] Figure 9 It is a preferred embodiment of the utility model a precision door lock structure is the perspective view of five metal circuits;
[0025] Figure 10 It is a preferred embodiment of the utility model a precision door lock structure is the perspective view of pre-injection molding piece;
[0026] Figure 11is another perspective view of the pre-injection molded part of a preferred embodiment of the precise door lock structure of the utility model;
[0027] Figure 12 is a structure schematic view of the mold opening direction of a preferred embodiment of the precise door lock structure of the utility model;
[0028] Figure 13 is a structure schematic view of the slider entering direction during injection molding of a preferred embodiment of the precise door lock structure of the utility model;
[0029] Figure 14 is a structure schematic view of the pre-injection molded part of the slider entering direction during injection molding of a preferred embodiment of the precise door lock structure of the utility model. DETAILED DESCRIPTION
[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0031] Please refer to Figure 1 Combining Figures 2-14 The embodiments of the utility model include:
[0032] A precise door lock structure includes hardware circuit, Pin needle, resistance 1, switch 2, pre-injection molded part 3 and injection molded part 4.
[0033] Among them, the hardware circuit includes first hardware circuit 5 and second hardware circuit 6.
[0034] The Pin needle installation side of the first hardware circuit 5 is provided with a plurality of first pin block 7, the Pin needle installation side of the second hardware circuit 6 is provided with a plurality of second pin block 8, the Pin needle includes first Pin needle 9 and second Pin needle 10, the first Pin needle 9 is inserted with the first pin block 7 through the first pin 11 and corresponds, the second Pin needle 10 corresponds with the second pin block 8 through the second pin 12, adopts the way of pin needle interference fit, realizes the circuit connection of hardware circuit and Pin needle.
[0035] The first hardware circuit 5 is provided with a corresponding first pin positioning hole 13 in front of a plurality of first pin blocks 7, and the first pin positioning holes 13 are equally spaced; the second hardware circuit 6 is provided with a corresponding second pin positioning hole 14 in front of a plurality of second pin blocks 8, and the second pin positioning holes 14 are equally spaced, the first pin 9 and the second pin 10 are respectively inserted by the rolled material belt, the first pin 9 and the second pin 10 are respectively equally spaced on the material belt, and the spacing between the first pin 9, the spacing between the second pin 10, the spacing between the first pin positioning hole 13 and the spacing between the second pin positioning hole 14 are equal, which ensures the accuracy of the pin operation.
[0036] The inner side of the first pin 11 and the second pin 12 is respectively provided with a knurl structure 15, which increases the pin pulling force after injection molding.
[0037] The above structure solves the problem that the hardware circuit and the pin material are different, so one part cannot be used to realize the circuit.
[0038] The first hardware circuit 5 is provided with a first limiting block 16 corresponding to the end of the first pin 11, and the second hardware circuit 6 is provided with a second limiting block 17 corresponding to the end of the second pin 12, the first limiting block 16 and the second limiting block 17 are movable and can be adjusted along the pin direction, which ensures the unified insertion of the pin.
[0039] The above structure solves the problem that the pin specifications and heights used on the same circuit are different, which is difficult to manufacture.
[0040] The first hardware circuit 5 and the second hardware circuit 6 are combined and fixed by the pre-injection part 3 to realize an integrated structure.
[0041] The first hardware circuit 5 is provided with a plurality of groups of two corresponding resistance teeth 18, the resistance line 19 at both ends of the resistance 1 corresponds to the clamping groove 20 at the top of any group of resistance teeth 18, and any group of resistance teeth 18 is fixed by the resistance tooth pressure head after being pressed together, and the resistance line 19 is fixed by being inclined towards each other, so as to ensure the stable cooperation between the resistance 1 and the hardware circuit.
[0042] The above structure solves the problem that different models of resistances 1 are installed on the same circuit, and the resistance 1 is easily caused to be in poor contact during use after installation, which causes changes in the organization and affects the function.
[0043] The switch 2 is provided with a plurality of and is fixed on the injection part 4 by the pre-injection part 3, so as to constitute the whole precision door lock structure.
[0044] The hardware circuit is also provided with a plurality of positioning bosses 21 corresponding to the switch 2, which are used for positioning the switch teeth of the switch 2 according to the upward and downward demolding directions.
[0045] The pre-injection molded part 3 is provided with a plurality of support columns 22 which are in close fit with the front mold core, and is also provided with a plurality of switch tooth positioning holes 23, the switch teeth of the switch 2 are glued and sealed, and the glue dispensing thickness covers at least 1mm of the hardware circuit, so as to prevent the switch teeth of the switch 2 from being short due to the glue filling pressure during the injection molding process.
[0046] The outer side end of any of the support columns 22 is provided with a chamfer 24, so as to prevent the product from being damaged and failed due to mold pressing before the mold is closed.
[0047] The holes in the pre-injection molded part are used for fixing the hardware circuit and ensuring the distance between the circuits and the flatness of the hardware, and need to be cut off before injection molding, so as to ensure the correctness of the circuit.
[0048] The above structure solves the problem that when the number of switches on the side surface of the injection molded part is large and the height is high, the switch teeth are easily pressed and short during the injection molding process, and the assembly is poor.
[0049] In summary, the utility model points out a kind of precise door lock structure, simplify mould structure, then through precise bending auxiliary equipment, precise parting equipment and cutting Pin equipment, obtain the final high-precision door lock assembly that satisfies functional experiment demand and experimental requirement, mass production finally, solve industry problem.
[0050] The above only describes the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the content of the utility model specification, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.
Claims
1. A precision door lock structure, characterized in that: It includes a hardware circuit, a pin, a resistor, a switch, a pre-injection molded part and an injection molded part. The hardware circuit includes a first hardware circuit and a second hardware circuit. The pin pin installation side of the first hardware circuit is provided with multiple first pin blocks, and the pin pin installation side of the second hardware circuit is provided with multiple second pin blocks. The pin pin includes a first pin pin and a second pin pin. The first pin pin is plugged into the first pin block through the first pin, and the second pin pin corresponds to the second pin block through the second pin. The first hardware circuit and the second hardware circuit are fixed together by the pre-injection molded part. The first hardware circuit is provided with multiple groups of resistor teeth corresponding to each other. The resistor wires at both ends of the resistor correspond to the card slots at the top of the resistor teeth of any group respectively, and the top of the resistor teeth of any group are pressed together by the resistor tooth pressure head to fix the resistor wire. The switch is provided with multiple groups and is fixed to the injection molded part together with the pre-injection molded part.
2. A precision door lock structure according to claim 1, characterized in that: The first hardware circuit is provided with corresponding first pin positioning holes on the front sides of the plurality of first pin blocks, and the first pin positioning holes are distributed at equal intervals.
3. A precision door lock structure according to claim 1, characterized in that: The second hardware circuit is provided with second pin positioning holes corresponding to each other on the front sides of the plurality of second pin blocks, and the second pin positioning holes are distributed at equal intervals.
4. A precision door lock structure according to claim 1, characterized in that: The inner ends of the first pin and the second pin are respectively provided with a knurled structure.
5. A precision door lock structure according to claim 1, characterized in that: The first hardware circuit is provided with a first limiting block corresponding to the end of the first pin for limiting the position, and the second hardware circuit is provided with a second limiting block corresponding to the end of the second pin for limiting the position.
6. A precision door lock structure according to claim 1, characterized in that: The hardware circuit is also provided with a plurality of positioning bosses corresponding to the switches.
7. A precision door lock structure according to claim 1, characterized in that: The pre-injection molded part is provided with a plurality of support columns, and the outer end of each support column is provided with a chamfer. The pre-injection molded part is also provided with a plurality of switch gear positioning holes.
8. The precision door lock structure according to claim 1, characterized in that: The switch teeth of the switch are sealed with glue, and the glue thickness covers the hardware circuit by at least 1mm.