Forklift steering lamp switch convenient to assemble

Abstract

The utility model relates to a forklift steering lamp switch convenient to assemble, and relates to the technical field of switches, the forklift steering lamp switch comprises a shell, a shell cover covering the shell and a control assembly installed in the shell, a containing cavity is formed in the side face, away from the shell, of the shell, and a cover plate used for blocking the containing cavity is fixedly arranged on the side face, away from the shell, of the shell; a containing cavity is formed in the base, an insulation module is installed in the containing cavity, a circuit board is fixedly arranged in the insulation module, a plurality of wiring contacts are fixedly arranged on the circuit board, wiring through holes allowing the wiring contacts to be placed in are formed in the insulation module, and the insulation module wraps the circuit board in a low-pressure injection molding mode; according to the forklift steering lamp switch, the installation efficiency of the circuit board is comprehensively improved, and the forklift steering lamp switch is made to meet the large-batch production requirement.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of switches, in particular to a forklift steering lamp switch convenient to assemble. BACKGROUND

[0002] The forklift steering lamp switch, as a core component of the forklift safety system, undertakes the heavy task of accurately controlling the opening and closing of the steering lamp and the switching of the direction, aims to transmit clear warnings to surrounding vehicles and pedestrians when the forklift turns, effectively avoids collision risks and safeguards the safety order of the operation site.

[0003] In the current technical pattern, the utility model patent with the publication number CN219321204U discloses an electronic switch specially designed for a forklift, which is composed of a shell and an embedded circuit board. A containing cavity is arranged in the shell to properly place the circuit board. In order to improve the protection performance of the switch, a glue injection groove is specially designed in the shell and is connected with the containing cavity through a glue injection hole, so as to inject potting glue into the interior, achieve the effect of waterproof and dustproof and ensure the stable operation of the switch in various environments.

[0004] However, in the actual production and assembly process, this design also exposes its limitations. Specifically, the wiring work of the circuit board must be completed before the glue injection step to ensure the accuracy of the electrical connection. However, from wiring to potting glue processing to the final injection operation, each step needs to be meticulous and time-consuming. Especially in the context of large-scale production, this complicated and time-consuming assembly process not only greatly increases the production cost, but also seriously restricts the overall production efficiency, making it difficult to meet the urgent needs of the market for high efficiency and rapid response, and there is room for improvement. SUMMARY

[0005] The purpose of the present application is to provide a forklift steering lamp switch convenient to assemble, which solves the problem that the installation process of the circuit board in the related technology is complicated and cannot meet the mass production demand.

[0006] The forklift steering lamp switch convenient to assemble provided by the present application adopts the following technical solution:

[0007] A forklift steering lamp switch convenient to assemble, comprising a shell, a shell cover arranged on the shell and a control component installed in the shell, a containing cavity is arranged on the side of the shell away from the shell, and a cover plate is fixedly arranged to block the containing cavity; an insulating module is installed in the containing cavity, a circuit board is fixedly arranged in the insulating module, a plurality of wiring contact points are fixedly arranged on the circuit board, wiring through holes are arranged in the insulating module for the wiring contact points, and the insulating module covers the circuit board by low-pressure injection molding.

[0008] By adopting the technical scheme, the curing time of the insulation module in the low-pressure forming process is short, usually between 5-50 seconds; and due to the reserved wiring through hole, the subsequent connection of the core wire inside the shell and the circuit board in the insulation module is facilitated; thereby comprehensively improving the installation efficiency of the circuit board, and making the forklift steering lamp switch suitable for mass production requirements.

[0009] Optionally, a plurality of fixing blocks are fixed on the bottom side of the accommodating cavity of the shell, a fixing screw hole is formed on the fixing block, a fixing through hole is formed on the insulation module, and a fixing screw that is screwed into the fixing screw hole after penetrating through the fixing through hole is arranged in the accommodating cavity.

[0010] By adopting the technical scheme, during the installation of the insulation module in the accommodating cavity, the insulation module is placed in the accommodating cavity, then the fixing screw hole and the fixing through hole are overlapped, and then the fixing screw is screwed into the fixing screw hole after penetrating through the fixing through hole, thereby reducing the possibility of loose installation of the insulation module in the accommodating cavity.

[0011] Optionally, a plurality of supporting blocks are fixed on the inner wall of the accommodating cavity of the shell, a limiting notch for clamping the insulation module is formed on the supporting block, and a guide inclined surface is arranged on the opening edge of the limiting notch.

[0012] By adopting the technical scheme, the worker can clamp the insulation module into the limiting notch along the guide inclined surface, thereby further limiting the insulation module in the accommodating cavity and strengthening the installation stability of the insulation module.

[0013] Optionally, opposite two locking plates are fixed on the side surface of the cover plate facing the shell, an anti-skid convex strip is fixed on the outer side surface of the locking plate, a locking groove for inserting the locking plate is formed on the shell, and the anti-skid convex strip is in interference abutment with the inner wall of the locking groove.

[0014] By adopting the technical scheme, when the cover plate and the shell are assembled, the locking plate is first inserted into the locking groove, and in this state, the anti-skid convex strip on the locking plate is in interference abutment with the inner wall of the locking groove, thereby improving the installation stability of the cover plate.

[0015] Optionally, a first positioning hole in communication with the locking groove is formed on the side surface of the shell, a second positioning hole capable of overlapping with the first positioning hole is formed on the locking plate, and a locking pin that is inserted into the second positioning hole after penetrating through the first positioning hole is arranged on the side surface of the shell.

[0016] By adopting the technical scheme, when the locking plate is completely inserted into the locking groove, the first positioning hole and the second positioning hole are overlapped, and at this time, the worker can sequentially insert the locking pin into the second positioning hole after penetrating through the first positioning hole, thereby further locking the assembly of the cover plate and the shell.

[0017] Optionally, an annular mounting groove is formed on the outer periphery of the locking pin, and an elastic sealing ring is sleeved in the annular mounting groove, and the outer peripheral surface of the elastic sealing ring is abutted against the inner wall of the first positioning hole.

[0018] By using the above technical scheme, when the locking pin is used to further fix the locking plate, the outer peripheral surface of the elastic sealing ring is abutted against the inner wall of the first positioning hole, so that the installation stability of the locking pin in this state is improved.

[0019] Optionally, a mounting recess for inserting the pin cap of the locking pin is formed on the outer opening edge of the first positioning hole, and a traction handle is hinged to the pin cap of the locking pin.

[0020] By using the above technical scheme, when the locking pin is used to further fix the locking plate, the pin cap of the locking pin can be inserted into the mounting recess, so that the space occupied by the whole switch is reduced, and the space utilization is improved; when the locking pin needs to be taken out later, the user can take out the locking pin faster by using the traction handle.

[0021] Optionally, a compression spring and an abutting plate are arranged on the side of the cover plate facing the shell, the two ends of the compression spring are fixedly connected to the side surfaces of the cover plate and the abutting plate close to each other, and the side surface of the abutting plate away from the compression spring is abutted against the insulating module under the extrusion of the compression spring.

[0022] By using the above technical scheme, when the cover plate is installed, the side surface of the abutting plate away from the compression spring is abutted against the insulating module under the extrusion of the compression spring, so that the installation stability of the insulating module is further improved.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. Due to the application of the insulating module, and the curing time consumed in the low-pressure forming process of the insulating module is relatively short, usually between 5-50 seconds; and because the wiring through hole is reserved, the connection between the core wire inside the shell and the circuit board in the insulating module is also facilitated; so as to comprehensively improve the installation efficiency of the circuit board, so that the forklift steering lamp switch is suitable for mass production demand. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1is a whole structure schematic diagram of an embodiment of the present application;

[0027] Figure 2 is an explosion structure schematic diagram of an embodiment of the present application;

[0028] Figure 3 is a partial sectional structure schematic diagram of an embodiment of the present application embodying the installation cooperation of the insulation module and the circuit board;

[0029] Figure 4 is a partial sectional structure schematic diagram of an embodiment of the present application embodying the installation cooperation of the insulation module;

[0030] Figure 5 is a partial structure schematic diagram of an embodiment of the present application embodying the installation cooperation of the support block;

[0031] Figure 6 is a partial structure schematic diagram of an embodiment of the present application embodying the installation cooperation of the cover plate and the shell;

[0032] Figure 7 is a partial sectional structure schematic diagram of an embodiment of the present application embodying the installation cooperation of the locking pin;

[0033] Figure 8 is Figure 7 a partial enlarged schematic diagram of part A.

[0034] In the figure, 1 is a shell; 11 is a containing cavity; 12 is a fixed block; 121 is a fixed screw hole; 13 is a support block; 131 is a limiting gap; 132 is a guide inclined surface; 14 is a locking groove; 15 is a first positioning hole; 151 is an installation groove; 2 is a shell cover; 3 is a control assembly; 4 is a cover plate; 41 is a locking plate; 411 is an anti-skid convex strip; 412 is a second positioning hole; 42 is a compression spring; 43 is an abutting plate; 5 is an insulation module; 51 is a wiring through hole; 52 is a fixed through hole; 6 is a circuit board; 7 is a fixed screw; 8 is a locking pin; 81 is an annular installation groove; 82 is a pin cap; 83 is a traction handle; 9 is an elastic sealing ring. DETAILED DESCRIPTION

[0035] The present application is further described in detail below in conjunction with all the drawings.

[0036] Embodiment:

[0037] Referring to Figure 1 , Figure 2 and Figure 3 , a forklift steering lamp switch convenient to assemble comprises a shell 1, a shell cover 2 arranged on the shell 1, and a control assembly 3 installed in the shell 1, wherein the control assembly 3 comprises a handle, a handle seat, a movable contact, and a stationary contact, and the specific structure is not described herein again.

[0038] The shell 1 is provided with a containing cavity 11 and a cover plate 4 for sealing the containing cavity 11 on the side away from the shell 1; the inside of the containing cavity 11 is provided with an insulation module 5, wherein the insulation module 5 is made of polyamide material, and the inside of the insulation module 5 is provided with a circuit board 6, the circuit board 6 is provided with a plurality of wiring contact points, the insulation module 5 is provided with wiring through holes 51 for the wiring contact points, and the insulation module 5 is wrapped around the circuit board 6 by low-pressure injection molding;

[0039] When the circuit board 6 is installed, the low-pressure injection molding technology is used for protection treatment, the polyamide insulation module 5 is injected outside the circuit board 6, and the corresponding wiring through holes 51 are preset, so that the subsequent connection between the core wire in the shell 1 and the circuit board 6 is facilitated; the curing time of the low-pressure forming material is relatively short, usually between 5-50 seconds, which greatly improves the production efficiency. At the same time, due to the fast curing speed, the energy consumption in the production process is also reduced.

[0040] Referring to Figure 3 , the cover plate 4 is provided with an abutting plate 43 and two compression springs 42 on the side facing the shell 1, wherein the two ends of the compression spring 42 are fixedly connected to the side surfaces of the cover plate 4 and the abutting plate 43 close to each other, and the side of the abutting plate 43 away from the compression spring 42 is tightly abutted with the insulation module 5 under the extrusion of the compression spring 42.

[0041] Referring to Figure 4 and Figure 5 , the shell 1 is integrally injection molded with two symmetrical fixing blocks 12 on the bottom side of the containing cavity 11, the fixing block 12 is provided with a fixing screw hole 121, the insulation module 5 is provided with a fixing through hole 52, and the containing cavity 11 is provided with a fixing screw 7 which penetrates through the fixing through hole 52 and is screwed into the fixing screw hole 121.

[0042] Referring to Figure 4 and Figure 5 , the shell 1 is integrally injection molded with a plurality of supporting blocks 13 on the inner wall of the containing cavity 11, wherein the supporting block 13 is provided with a limiting gap 131 for clamping the insulation module 5, and the opening edge of the limiting gap 131 is provided with a guide inclined surface 132; the staff can clamp the insulation module 5 into the limiting gap 131 along the guide inclined surface 132, so as to further limit the insulation module 5 in the containing cavity 11.

[0043] Referring to Figure 6 and Figure 7 , the cover plate 4 is provided with two opposite locking plates 41 on the side facing the shell 1, the outer side of the locking plate 41 is integrally injection molded with an anti-skid convex strip 411, and the shell 1 is provided with a locking groove 14 for inserting the locking plate 41; when the locking plate 41 is inserted into the inside of the locking groove 14, the anti-skid convex strip 411 on the locking plate 41 is in interference abutment with the inner wall of the locking groove 14.

[0044] Referring toFigure 7 and Figure 8 The side surface of the shell 1 is provided with a first positioning hole 15 communicated with the locking groove 14, and the locking plate 41 is provided with a second positioning hole 412. The side surface of the shell 1 is provided with a locking pin 8. An annular mounting groove 81 is formed on the outer periphery of the locking pin 8, and a rubber elastic sealing ring 9 is sleeved in the annular mounting groove 81. A traction handle 83 is hinged to the pin cap 82 of the locking pin 8. An installation recess 151 is formed on the outer side opening edge of the first positioning hole 15, and the pin cap 82 of the locking pin 8 is inserted into the installation recess 151.

[0045] When the locking plate 41 is completely inserted into the locking groove 14, the first positioning hole 15 and the second positioning hole 412 coincide. At this time, the locking pin 8 can be inserted into the second positioning hole 412 after being sequentially penetrated through the first positioning hole 15, until the pin cap 82 of the locking pin 8 is inserted into the installation recess 151, and at this time, the outer periphery of the elastic sealing ring 9 is tightly abutted against the inner wall of the first positioning hole 15. When the locking pin 8 needs to be taken out later, the user can take it out through the traction handle 83.

[0046] The implementation principle of the embodiment of the present application is as follows:

[0047] During the installation of the circuit board 6, the low-pressure forming technology is used to uniformly coat the insulating material such as polyamide on the outside of the circuit board 6 to form a firm protective layer (i.e., the insulating module 5). Then, the insulating module 5 is clamped into the limiting gap 131 along the guide inclined surface 132, and the fixed screw 7 is used to penetrate the fixed through hole 52 and then screwed into the fixed screw hole 121.

[0048] Since the low-pressure injection molding is suitable for processing the circuit board 6 in batches and consumes less time, the curing speed of the insulating module 5 is fast, and the energy consumption in the production process is reduced, thereby improving the overall assembly efficiency of the forklift steering lamp switch.

[0049] Unless otherwise defined, the terms or scientific terms used in the present application shall have the usual meaning understood by a person with ordinary skill in the art to which the present application belongs. The terms "first", "second", "third" and the like used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. The terms "one" or "a" and the like do not represent a quantity limitation, but represent the existence of at least one. The terms "including", "containing" and the like mean that the elements or objects appearing before "including" or "containing" cover the elements or objects listed after "including" or "containing" and their equivalents, and do not exclude other elements or objects. The terms "upper", "lower", "left", "right" and the like only represent relative positional relationships, which may change accordingly when the absolute positions of the described objects change.

[0050] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A forklift turn signal switch that is easy to assemble, comprising a housing (1), a housing cover (2) arranged on the housing (1), and a control assembly (3) installed in the housing (1); a housing cavity (11) is formed on a side of the housing (1) away from the housing (1), and a cover plate (4) is fixedly provided for sealing the housing cavity (11); It is characterized in that An insulating module (5) is installed inside the accommodating cavity (11), a circuit board (6) is fixedly arranged inside the insulating module (5), a plurality of wiring contacts are fixedly arranged on the circuit board (6), a wiring through hole (51) for inserting the wiring contacts is opened on the insulating module (5), and the insulating module (5) covers the circuit board (6) by low-pressure injection molding.

2. The easy-to-assemble forklift turn signal switch according to claim 1, characterized in that: The housing (1) is fixed with a plurality of fixing blocks (12) on the bottom side of the accommodating cavity (11), the fixing blocks (12) are provided with fixing screw holes (121), the insulating module (5) is provided with fixing through holes (52), and the accommodating cavity (11) is provided with fixing screws (7) that penetrate the fixing through holes (52) and are then screwed into the fixing screw holes (121).

3. The easy-to-assemble forklift turn signal switch according to claim 2, characterized in that: The housing (1) is provided with a plurality of support blocks (13) on the inner wall of the accommodating cavity (11); the support blocks (13) are provided with limiting notches (131) for the insulating module (5) to be inserted into; and the opening edge of the limiting notch (131) is provided with a guide slope (132).

4. The easy-to-assemble forklift turn signal switch according to claim 1, characterized in that: Two opposite locking plates (41) are fixedly provided on the side of the cover plate (4) facing the housing (1), and anti-slip convex strips (411) are fixedly provided on the outer surfaces of the locking plates (41). A locking groove (14) for inserting the locking plates (41) is provided on the housing (1), and the anti-slip convex strips (411) are in interference contact with the inner wall of the locking groove (14).

5. The easy-to-assemble forklift turn signal switch according to claim 4, characterized in that: A first positioning hole (15) communicating with the locking groove (14) is provided on the side of the housing (1); a second positioning hole (412) capable of coinciding with the first positioning hole (15) is provided on the locking plate (41); and a locking pin (8) penetrating the first positioning hole (15) and then inserted into the second positioning hole (412) is provided on the side of the housing (1).

6. The easy-to-assemble forklift turn signal switch according to claim 5, characterized in that: An annular mounting groove (81) is provided on the outer periphery of the locking pin (8), an elastic sealing ring (9) is sleeved in the annular mounting groove (81), and the outer periphery of the elastic sealing ring (9) can be tightly pressed against the inner wall of the first positioning hole (15).

7. The easy-to-assemble forklift turn signal switch according to claim 5, characterized in that: An installation recess (151) for inserting a pin cap (82) of a locking pin (8) is provided on the outer opening edge of the first positioning hole (15), and a traction handle (83) is hingedly connected to the pin cap (82) of the locking pin (8).

8. The easy-to-assemble forklift turn signal switch according to claim 1, characterized in that: A compression spring (42) and an abutment plate (43) are provided on the side of the cover plate (4) facing the housing (1); both ends of the compression spring (42) are fixedly connected to the side surfaces of the cover plate (4) and the abutment plate (43) that are close to each other; and the side surface of the abutment plate (43) that is away from the compression spring (42) is pressed against the insulation module (5) by the compression spring (42).

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