Ignition switch and engineering machine

Abstract

The utility model discloses a kind of ignition switch and engineering machinery, including by lock cylinder, lock shell and waterproof cover constitute first part and by shell, rotating block and circuit structure second part, adapter cover is provided at the junction of the first part and second part, the adapter cover is configured as can realize rotating block and lock cylinder synchronous circumferential rotation, rainwater can also be isolated from invading circuit structure again.The utility model provides a kind of ignition switch, increases adapter cover in ignition switch inside, effectively isolates rainwater from invading circuit structure, solves ignition switch waterproof problem.

Description

Technical Field

[0001] This utility model relates to an ignition switch with an enhanced waterproof structure, belonging to the field of waterproof ignition switches. Background Technology

[0002] Construction machinery, especially earthmoving machinery, operates in open-air environments for extended periods. Water ingress into the ignition switch can cause components to corrode or even short-circuit, preventing the vehicle from starting and severely impacting work progress. Therefore, improving the protective capabilities of the ignition switch, particularly its waterproof capabilities, is extremely important.

[0003] Currently, the main waterproofing measure for ignition switches is to add a waterproof cover. However, since the key and the lock cylinder are not completely sealed, the waterproof cover has almost no waterproofing effect when the vehicle is working in the rain. Another waterproofing measure is to add a rubber ring, but the waterproofing effect of the rubber ring is poor after aging, and there is still a risk of water ingress into the circuit structure. Summary of the Invention

[0004] To address the above problems, the purpose of this utility model is to provide an ignition switch by adding an adapter cover inside the ignition switch, which effectively prevents rainwater from entering the circuit structure and solves the waterproofing problem of the ignition switch.

[0005] This utility model is achieved according to the following technical solution: In a first aspect, this utility model provides an ignition switch, comprising a first part consisting of a lock cylinder, a lock shell, and a waterproof cover, and a second part consisting of a shell, a rotating block, and a circuit structure. An adapter cover is provided at the connection between the first part and the second part. The adapter cover is configured to enable the rotating block and the lock cylinder to rotate synchronously in the circumferential direction, and to prevent rainwater from entering the circuit structure.

[0006] In some embodiments, the lock housing is a cylindrical tube structure, the lock cylinder passes through the lock housing and is axially limited vertically downward by a flange structure at the top of the lock cylinder, and the lock cylinder can rotate circumferentially in the lock housing; the waterproof cover is installed on the lock housing, and the waterproof cover is configured to cover and uncover the keyhole on the lock cylinder.

[0007] In some embodiments, the waterproof cover includes a sleeve and a cover plate. The top outer circumferential surface of the lock housing is provided with an external thread, and the inner circumferential surface of the sleeve is provided with an internal thread. The sleeve and the lock housing are connected by the cooperation of the internal and external threads to form a helical pair. The cover plate and the sleeve are connected together by a self-resetting connecting component. Under the action of external force, the cover plate can rotate on the sleeve at a preset angle. After the external force disappears, the cover plate can automatically reset.

[0008] In some embodiments, the self-resetting connecting component includes a bolt and a torsion spring; the sleeve has an axially extending through hole, the cover plate has a threaded hole coaxial with the through hole, the bolt passes through the through hole and is tightened in the threaded hole, and there is a clearance fit between the bolt and the through hole; the torsion spring is connected between the sleeve and the cover plate, and resets the rotated cover plate by storing force through its deformation.

[0009] In some embodiments, the top surface of the housing is provided with a plurality of threaded posts located on the same circumference, and the threaded posts are provided with threaded holes. The flange structure at the bottom of the lock housing is provided with through holes corresponding to the plurality of threaded posts. The lock housing is fixed to the plurality of threaded posts by screws passing through the through holes and tightening them in the threaded holes.

[0010] In some embodiments, the adapter cover is disposed between the lock housing and the outer housing, the adapter cover having a first connection point for connecting to the bottom structure of the lock cylinder, and the adapter cover having a second connection point for connecting to the top structure of the rotating block.

[0011] In some embodiments, a gap is provided between the lock housing and the adapter cover to facilitate rainwater drainage.

[0012] In some embodiments, the adapter cover includes a circular top plate, an annular side plate extending vertically downward around the entire periphery of the top plate, and a connecting post extending vertically downward from the central region of the top plate; the central region of the top surface of the outer shell is provided with an annular protrusion extending vertically upward, and the adapter cover is tightly engaged with the annular protrusion, so that the contact area between the adapter cover and the outer shell forms a misaligned structure to prevent rainwater from flowing down; the connecting post is embedded in a groove I opened on the top surface of the rotating block, and the outer contour structure of the connecting post is the same as the shape of the groove I; the central region of the upper surface of the top plate is provided with a groove II extending vertically downward, and the protrusion of the lock cylinder is embedded in the groove II, and the outer contour structure of the protrusion is the same as the shape of the groove II; wherein, the groove II constitutes the first connection point, and the connecting post constitutes the second connection point.

[0013] In some embodiments, the connecting post is an elliptical post, and the groove I is an elliptical groove; and / or, the protrusion is an elliptical protrusion, and the groove II is an elliptical groove.

[0014] In some embodiments, at least one sealing ring is provided between the side plate of the adapter cover and the circumferential surface of the outer casing facing the annular protrusion.

[0015] Secondly, this utility model provides an engineering machinery, including the aforementioned ignition switch.

[0016] The beneficial effects of this utility model are: This invention uses an adapter cover to guide rainwater out; this invention also uses a design that offsets the height of the adapter cover from the outer shell to isolate rainwater.

[0017] This invention can effectively improve the protection level of ignition switches and enhance the stability and reliability of engineering machinery in special environments. Attached Figure Description

[0018] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0019] In the attached diagram: Figure 1 This is a schematic diagram of the appearance of an ignition switch according to the present invention; Figure 2 This is a disassembled schematic diagram of an ignition switch according to the present invention; Figure 3 This is a schematic diagram of the vertical cross-section of an ignition switch according to the present invention; Figure 4 This is a schematic diagram of the horizontal cross-section of the adapter cover of this utility model.

[0020] Attached diagram labels: 10-Part 1, 20-Adapter cover, 30-Part 2, 101-Waterproof cover, 102-Lock cylinder, 103-Lock shell, 104-Outer shell, 105-Rotating block, 106-Circuit structure, 107-Part I, 108-Part II, 109-Gap, 110-Threaded hole, 111-Sealing ring, 112-Cover plate, 113-Sleeve.

[0021] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation 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.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Ignition switch appearance and structure as follows Figure 1 As shown. The ignition switch split structure is as follows. Figure 2 As shown. The vertical cross-sectional view of the ignition switch is as follows. Figure 3 As shown. An ignition switch includes a first part 10 consisting of a lock cylinder 102, a lock shell 103, and a waterproof cover 101, and a second part 30 consisting of a shell 104, a rotating block 105, and a circuit structure 106. An adapter cover 20 is provided at the connection between the first part 10 and the second part 30. The adapter cover 20 is configured to both enable the rotating block 105 to rotate synchronously with the lock cylinder 102 and prevent rainwater from entering the circuit structure 106.

[0026] The following is a further explanation of the specific structure of the first part mentioned above.

[0027] like Figure 2 , Figure 3 As shown, the lock housing 103 has a cylindrical structure, the lock cylinder 102 passes through the lock housing 103, and is axially limited vertically downward by the flange structure at the top of the lock cylinder 102. The lock cylinder 102 can rotate circumferentially in the lock housing 103. The waterproof cover 101 is installed on the lock housing 103. The waterproof cover 101 is configured to cover and uncover the lock hole on the lock cylinder 102.

[0028] Further options, such as Figure 3As shown, the waterproof cover 101 includes a sleeve 113 and a cover plate 112. The top outer circumferential surface of the lock housing 103 is provided with an external thread, and the inner circumferential surface of the sleeve 113 is provided with an internal thread. The sleeve 113 and the lock housing 103 are connected by the cooperation of the internal and external threads to form a helical pair. The cover plate 112 and the sleeve 113 are connected together by a self-resetting connecting component. Under the action of external force, the cover plate 112 can rotate on the sleeve 113 by a preset angle. After the external force disappears, the cover plate 112 can automatically reset.

[0029] Further options, such as Figure 3 As shown, the self-resetting connecting component includes a bolt and a torsion spring; the sleeve 113 is provided with an axially extending through hole, and the cover plate 112 is provided with a threaded hole coaxial with the through hole. The bolt passes through the through hole and is tightened in the threaded hole, with a clearance fit between the bolt and the through hole; the torsion spring is connected between the sleeve 113 and the cover plate 112, and resets the rotated cover plate 112 by storing force through its deformation.

[0030] It should be noted that the above is only a preferred embodiment of the self-resetting connecting component. In actual design, other self-resetting connecting components with different structures can also be used. For example, the cover plate on the sleeve can be designed as a flip-top structure.

[0031] The connection between the outer shell and the lock shell described above will be further explained below.

[0032] like Figure 2 , Figure 3 As shown, the top surface of the outer casing 104 is provided with multiple threaded posts located on the same circumference. The threaded posts are provided with threaded holes 110. The flange structure at the bottom of the lock housing 103 is provided with through holes corresponding to the multiple threaded posts. The lock housing 103 is fixed to the multiple threaded posts by screws passing through the through holes and tightening them in the threaded holes 110.

[0033] The following provides a further explanation of the specific structure and connection relationship of the aforementioned adapter cover.

[0034] like Figure 2 , Figure 3 , Figure 4 As shown, the adapter cover 20 is arranged between the lock housing 103 and the outer housing 104. The adapter cover 20 has a first connection point for connecting to the bottom structure of the lock cylinder 102 and a second connection point for connecting to the top structure of the rotating block 105.

[0035] Further options, such as Figure 3 As shown, a gap 109 is left between the lock housing 103 and the adapter cover 20 to guide rainwater. Rainwater that slides from the lock cylinder 102 onto the adapter cover 20 can be discharged through the gap 109.

[0036] Further options, such as Figure 2 , Figure 3 , Figure 4 As shown, the adapter cover 20 includes a circular top plate, an annular side plate extending vertically downward around the entire periphery of the top plate, and a connecting post extending vertically downward from the center region of the top plate; the top surface of the outer shell 104 has an annular protrusion extending vertically upward in the center region, and the adapter cover 20 is tightly engaged with the annular protrusion, so that the contact parts of the adapter cover 20 and the outer shell 105 (i.e., part I 107 and part II 108) form a misaligned structure to prevent rainwater from flowing downhill; the connecting post is embedded in the groove I opened on the top surface of the rotating block 105, and the outer contour structure of the connecting post is the same as the shape of the groove I; the upper surface of the top plate has a groove II extending vertically downward in the center region, and the protrusion of the lock cylinder 102 is embedded in the groove II, and the outer contour structure of the protrusion is the same as the shape of the groove II; wherein, the groove II constitutes the first connection point, and the connecting post constitutes the second connection point.

[0037] As can be seen from the above, after water flows in from the lock cylinder, it will be guided by the adapter cover. Furthermore, the staggered design of the adapter cover and the outer shell further prevents rainwater from flowing into the circuit structure, thus completely solving the waterproofing problem.

[0038] Further options, such as Figure 3 , Figure 4 As shown, the connecting column is set as an elliptical column, and groove I is set as an elliptical groove; the protrusion is set as an elliptical protrusion, and groove II is set as an elliptical groove.

[0039] It should be noted that the above is only a preferred embodiment of the connecting column, groove I, protrusion and groove II, and is not limited to the elliptical structure. In actual design, a triangular structure can also be used.

[0040] Further options, such as Figure 3 , Figure 4 As shown, at least one sealing ring 111 is provided between the side plate of the adapter cover 20 and the circumferential surface of the outer shell 104 facing each other.

[0041] In summary, this utility model provides an ignition switch that achieves the following functions and effects: The adapter cover, as seen in the cross-sectional view of the ignition switch, resembles an inverted "mountain" shape. The circuit structure is located in the second part. The bottom of the lock cylinder is embedded in a groove in the adapter cover, and the bottom of the adapter cover is embedded in a groove in the rotating block. When the lock cylinder rotates, both the adapter cover and the rotating block are rotated, thereby controlling the circuit structure. A small gap exists between the lock shell (first part) and the adapter cover to guide rainwater; rainwater sliding from the lock cylinder onto the adapter cover can be drained through this gap. The outer shell (second part) and the adapter cover are structurally designed to fit tightly, and the inner wall of the adapter cover is fitted with a rubber ring, which can prevent rainwater intrusion to some extent; furthermore, as... Figure 3As shown, part I 107 is higher and part II 108 is lower. This staggered design can prevent rainwater from flowing downstream and effectively isolate rainwater from entering the circuit structure.

[0042] The adapter cover in this ignition switch, through its flow-guiding and high / low offset design, can prevent rainwater from entering the lock cylinder and intruding into the second part, ensuring the normal circuit structure and ignition function.

[0043] The following describes the engineering machinery provided by this utility model. The engineering machinery described below can be referred to in correspondence with the ignition switch described above.

[0044] The engineering machinery provided by this utility model may include an ignition switch as described in any of the above embodiments.

[0045] The beneficial effects achieved by the engineering machinery provided by this utility model are consistent with the beneficial effects achieved by the ignition switch provided by this utility model, so they will not be repeated here.

[0046] It should be noted that the aforementioned construction machinery can be cranes, excavators, and concrete pump trucks.

[0047] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0048] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An ignition switch, comprising a first part consisting of a lock cylinder, a lock shell, and a waterproof cover, and a second part consisting of a housing, a rotating block, and a circuit structure, characterized in that: An adapter cover is provided at the connection between the first part and the second part. The adapter cover is constructed to enable the rotating block and the lock cylinder to rotate synchronously in the circumferential direction, and to prevent rainwater from entering the circuit structure.

2. An ignition switch according to claim 1, characterized in that: The lock housing is a cylindrical tube structure, the lock cylinder passes through the lock housing, and is vertically and axially limited by the flange structure at the top of the lock cylinder. The lock cylinder can rotate circumferentially in the lock housing. The waterproof cover is mounted on the lock housing and is configured to cover and uncover the keyhole on the lock cylinder.

3. An ignition switch according to claim 2, characterized in that: The waterproof cover includes a sleeve and a cover plate. The top outer circumferential surface of the lock housing is provided with an external thread, and the inner circumferential surface of the sleeve is provided with an internal thread. The sleeve and the lock housing are connected by the cooperation of the internal and external threads to form a helical pair. The cover plate and the sleeve are connected together by a self-resetting connecting component. Under the action of external force, the cover plate can rotate on the sleeve at a preset angle. After the external force is removed, the cover plate can automatically reset.

4. An ignition switch according to claim 3, characterized in that: The self-resetting connecting component includes a bolt and a torsion spring; the sleeve is provided with an axially extending through hole, the cover plate is provided with a threaded hole coaxial with the through hole, the bolt passes through the through hole and is tightened in the threaded hole, and there is a clearance fit between the bolt and the through hole; the torsion spring is connected between the sleeve and the cover plate, and resets the rotated cover plate by storing force through its deformation.

5. An ignition switch according to claim 1, characterized in that: The top surface of the outer shell is provided with multiple threaded posts located on the same circumference. Each threaded post has a threaded hole. The flange structure at the bottom of the lock shell has through holes that correspond one-to-one with the multiple threaded posts. The lock shell is fixed to the multiple threaded posts by screws passing through the through holes and tightening them into the threaded holes.

6. An ignition switch according to claim 1, characterized in that: The adapter cover is arranged between the lock housing and the outer housing. The adapter cover has a first connection point for connecting to the bottom structure of the lock cylinder and a second connection point for connecting to the top structure of the rotating block.

7. An ignition switch according to claim 6, characterized in that: A gap is left between the lock housing and the adapter cover to guide rainwater.

8. An ignition switch according to claim 6, characterized in that: The adapter cover includes a circular top plate, an annular side plate extending vertically downward around the entire periphery of the top plate, and a connecting post extending vertically downward from the central region of the top plate. The top surface of the outer shell has a vertically upward-extending annular protrusion in the center area. The adapter cover is tightly snapped onto the annular protrusion, so that the contact part between the adapter cover and the outer shell forms a misaligned structure to prevent rainwater from flowing down. The connecting post is embedded in the groove I opened on the top surface of the rotating block, and the outer contour structure of the connecting post is the same as the shape of the groove I; The upper surface of the top plate has a vertically downward extending groove II in the central area, and the protrusion of the lock cylinder is embedded in the groove II. The outer contour structure of the protrusion is the same as the shape of the groove II. Wherein, the groove II constitutes the first connection point, and the connecting post constitutes the second connection point.

9. An ignition switch according to claim 8, characterized in that: The connecting column is configured as an elliptical cylinder, and the groove I is configured as an elliptical groove; and / or, The protrusion is an elliptical protrusion, and the groove II is an elliptical groove.

10. An ignition switch according to claim 8, characterized in that: At least one sealing ring is provided between the side plate of the adapter cover and the circumferential surface of the outer shell facing the annular protrusion.

11. An engineering machinery, characterized in that: Includes the ignition switch as described in any one of claims 1 to 10.

Images