Alarm switch

Abstract

The utility model provides an alarm switch, and relates to the technical field of alarm devices. The alarm switch comprises an electric connecting piece, a base, a push shaft assembly and a cover plate, the electric connecting piece and the base are integrated through injection molding, the push shaft assembly and the cover plate are movably connected, the push shaft assembly is used for being matched with the electric connecting piece, the cover plate and the base are detachably connected, and the alarm switch has the advantage of being high in assembly efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of alarm devices, and in particular to an alarm switch. Background Art

[0002] The alarm switch, also known as the emergency stop switch, emergency stop button or emergency brake switch, is an important safety device designed to immediately interrupt equipment operation or activate the alarm system in an emergency to protect the safety of operators and prevent equipment damage.

[0003] The electrical connector in the existing alarm switch is plug-fitted to the base. During the assembly of the alarm switch, the electrical connector is easily separated from the base, which makes the assembly efficiency of the alarm switch low. Utility Model Content

[0004] The objects of the present application include, for example, providing an alarm switch having the advantage of high assembly efficiency.

[0005] This application can be implemented as follows:

[0006] The present application provides an alarm switch, which includes an electrical connector, a base, a push shaft assembly and a cover plate. The electrical connector and the base are injection molded as one piece, the push shaft assembly is movably connected to the cover plate, the push shaft assembly is used to cooperate with the electrical connector, and the cover plate is detachably connected to the base.

[0007] Optionally, the push shaft assembly includes a push shaft and a clamp spring, wherein the clamp spring is disposed on the push shaft and is used to cooperate with the electrical connector.

[0008] Optionally, there are two groups of electrical connectors, both groups of electrical connectors are injection-molded as one piece with the base, and the two groups of electrical connectors are arranged on both sides of the base.

[0009] Optionally, each group of the electrical connectors includes a plurality of electrical connection plates, and the clamp spring is used to cooperate with two adjacent electrical connection plates.

[0010] Optionally, a receiving cavity is formed between the cover plate and the base, and the push shaft portion is located in the receiving cavity.

[0011] Optionally, the push shaft includes a main body portion and a pressing portion connected to each other, the main body portion is located in the accommodating cavity, a through hole is provided on the cover plate, and the pressing portion extends to the outside of the accommodating cavity through the through hole.

[0012] Optionally, the alarm switch further comprises a spring, a fixing column is provided on the base, the spring is sleeved on the fixing column, and one end of the spring away from the fixing column is in contact with the push shaft assembly.

[0013] Optionally, a first clamping block is provided on the outer surface of the base, the first clamping block is provided with a first clamping surface, a second clamping block is provided on the cover plate, the second clamping block is provided with a second clamping surface, the first clamping surface is fitted with the second clamping surface, and the second clamping block is fitted with the outer side surface of the base.

[0014] Optionally, the first clamping block is provided with a guiding bevel, and the guiding bevel is connected to the first clamping surface. After the second clamping block is guided by the guiding bevel, the first clamping surface fits with the second clamping surface, and the second clamping block fits with the outer side surface of the base.

[0015] Optionally, the first clamping block is provided with a transition surface, and the transition surface is connected between the guiding inclined surface and the first clamping surface.

[0016] The beneficial effects of the alarm switch of the present application include, for example: in order to improve the assembly efficiency of the alarm switch, an alarm switch is designed, the alarm switch includes an electrical connector, a base, a push shaft assembly and a cover plate, the electrical connector and the base are injection molded as one, the push shaft assembly and the cover plate are movably connected, the push shaft assembly is used to cooperate with the electrical connector, and the cover plate is detachably connected to the base. In the process of assembling the alarm switch, since the electrical connector and the base are injection molded as one, the electrical connector is not easy to separate from the base, the push shaft assembly is first matched with the electrical connector, and then the cover plate is connected to the base, so that the push shaft assembly and the cover plate are movably connected, and the assembly of the alarm switch is completed at this time, thereby improving the assembly efficiency of the alarm switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of the alarm switch in the embodiment of the present application;

[0019] Figure 2 This is an exploded view of the alarm switch in the embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the structure of the push shaft assembly in the embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of the partial structure of the alarm switch in the embodiment of the present application;

[0022] Figure 5 This is a schematic diagram of the structure of the base in the embodiment of the present application;

[0023] Figure 6 This is a schematic diagram of the structure of the cover plate in the embodiment of the present application;

[0024] Figure 7 The figure is a flow chart of the assembly method of the alarm switch in the embodiment of the present application.

[0025] Icon: 1-electrical connector; 2-base; 21-fixing column; 22-first clamping block; 221-first clamping surface; 222-guide slope; 223-transition surface; 3-push shaft assembly; 31-push shaft; 311-main body; 3111-slot; 312-pressing part; 32-clamp spring; 4-cover plate; 41-through hole; 42-second clamping block; 421-second clamping surface; 5-spring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the product of the invention is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0031] It should be noted that, in the absence of conflict, the features in the embodiments of the present application may be combined with each other.

[0032] The inventor of the present application has found that the electrical connector in the existing alarm switch is plug-in-fitted with the base, and the electrical connector is easily separated from the base during the assembly of the alarm switch, resulting in low assembly efficiency of the alarm switch. The embodiment of the present application provides an alarm switch that at least solves this technical problem.

[0033] Please refer to Figure 1 , Figure 2 The alarm switch provided in the embodiment of the present application includes an electrical connector 1, a base 2, a push shaft assembly 3 and a cover plate 4. The electrical connector 1 and the base 2 are injection molded as one body. The push shaft assembly 3 is movably connected to the cover plate 4. The push shaft assembly 3 is used to cooperate with the electrical connector 1, and the cover plate 4 is detachably connected to the base 2.

[0034] The electrical connector 1 and the base 2 are integrally molded to form an electrical connector, that is, the electrical connector 1 and the base 2 are integrally molded, so the electrical connector 1 is not easily separated from the base 2. The push shaft assembly 3 can move relative to the cover plate 4. When the push shaft assembly 3 moves relative to the cover plate 4, the push shaft assembly 3 cooperates with the electrical connector 1 to switch the circuit.

[0035] Since the electrical connector 1 and the base 2 are formed into an integrated structure by injection molding, the electrical connector 1 is not easy to separate from the base 2. During the assembly of the alarm switch, the push shaft assembly 3 is first matched with the electrical connector 1, and then the cover plate 4 is connected to the base 2, so that the push shaft assembly 3 and the cover plate 4 are movably connected. At this time, the assembly of the alarm switch is completed, thereby improving the assembly efficiency of the alarm switch.

[0036] It should be pointed out that in the process of assembling the alarm switch, the electrical connector 1 and the base 2 which are injection molded as one are used as the installation basis, and the push shaft assembly 3 can be installed from any direction, especially when the push shaft assembly 3 is installed from the horizontal side, the electrical connector 1 is not easy to separate from the base 2, thereby improving the flexibility of assembly.

[0037] In this embodiment, there are two groups of electrical connectors 1 , and both groups of electrical connectors 1 are integrally injection-molded with the base 2 , and the two groups of electrical connectors 1 are disposed on both sides of the base 2 .

[0038] An accommodating cavity is formed between the cover plate 4 and the base 2, and a portion of the push shaft assembly 3 is located in the accommodating cavity. The push shaft assembly 3 includes a push shaft 31 and a clamp spring 32, wherein the clamp spring 32 is disposed on the push shaft 31 and is used to cooperate with the electrical connector 1.

[0039] Please refer to Figure 3The push shaft 31 includes a main body 311 and a pressing portion 312 connected to each other. The main body 311 is located in the accommodating cavity. A through hole 41 is opened on the cover plate 4, and the pressing portion 312 extends out of the accommodating cavity through the through hole 41; two card grooves 3111 are arranged on both sides of the main body 311, and a clamping spring 32 is arranged in each card groove 3111. The two clamping springs 32 are respectively used to cooperate with the two electrical connectors 1.

[0040] In this embodiment, each group of electrical connectors 1 includes a plurality of electrical connectors 1 , and the clamp spring 32 is used to cooperate with two adjacent electrical connectors 1 .

[0041] For example, Figure 4 As shown, each group of electrical connectors 1 includes two electrical connectors 1, and the two electrical connectors 1 are injection molded as one piece with the base 2. One end of the two electrical connectors 1 is located in the accommodating cavity for cooperating with the clamp spring 32; the other end of the two electrical connectors 1 extends outside the accommodating cavity for connecting to an external circuit, wherein the portion of the electrical connector 1 extending outside the accommodating cavity can be made into a straight pin or bent to form a patch structure.

[0042] According to the different heights of the ends of the two electrical connectors 1 located in the accommodating cavity, there are the following two working conditions:

[0043] The first working condition: in the moving direction of the pressing part 312, one end of the two electrical connectors 1 in each group of electrical connectors 1 located in the accommodating cavity is close to the top of the base 2. In the first working condition, the pressing part 312 is pressed, and the pressing part 312 drives the main body 311 to move relative to the cover plate 4, and the clamp spring 32 moves from the first position to the second position. When the clamp spring 32 is in the first position, it cooperates with one end of the two electrical connectors 1 located in the accommodating cavity at the same time, and the circuit is turned on; when the clamp spring 32 is in the second position, it is released from the one end of the two electrical connectors 1 located in the accommodating cavity, and the circuit is turned off.

[0044] The second working condition: in the moving direction of the pressing part 312, one end of the two electrical connectors 1 in each group of electrical connectors 1 located in the accommodating cavity is close to the bottom of the base 2. In the second working condition, the pressing part 312 is pressed, and the pressing part 312 drives the main body 311 to move relative to the cover plate 4, and the clamp spring 32 moves from the first position to the second position. When the clamp spring 32 is in the first position, it is released from the one end of the two electrical connectors 1 located in the accommodating cavity, and the circuit is disconnected; when the clamp spring 32 is in the second position, it is simultaneously matched with one end of the two electrical connectors 1 located in the accommodating cavity, and the circuit is turned on.

[0045] For example, Figure 2As shown, each group of electrical connectors 1 includes three electrical connectors 1, and the three electrical connectors 1 are all injection molded as one piece with the base 2. One end of the three electrical connectors 1 is located in the accommodating cavity for cooperating with the clamp spring 32, and one end of the three electrical connectors 1 located in the accommodating cavity is arranged in sequence in the movable direction of the pressing portion 312; the other end of the three electrical connectors 1 extends outside the accommodating cavity for connecting to an external circuit.

[0046] The pressing portion 312 is pressed, and the pressing portion 312 drives the main body 311 to move relative to the cover plate 4, and the clamp spring 32 moves from the first position to the second position. When the clamp spring 32 is in the first position, it simultaneously cooperates with one end of two electrical connectors 1 located in the accommodating cavity among the three electrical connectors 1 close to the top of the base 2, and the first circuit is connected at this time; when the clamp spring 32 is in the second position, it simultaneously cooperates with one end of two electrical connectors 1 located in the accommodating cavity among the three electrical connectors 1 close to the bottom of the base 2, and the second circuit is connected at this time.

[0047] It should be noted that the functions achieved by connecting the first circuit and connecting the second circuit may be determined according to actual working conditions and are not limited thereto.

[0048] In this embodiment, the alarm switch further includes a spring 5 . A fixing column 21 is provided on the base 2 . The spring 5 is sleeved on the fixing column 21 , and one end of the spring 5 away from the fixing column 21 abuts against the push shaft assembly 3 .

[0049] The fixing column 21 and the spring 5 are both located in the accommodating cavity. The extension direction of the fixing column 21 is consistent with the moving direction of the push shaft 31. The end of the spring 5 away from the fixing column 21 abuts against the pressing portion 312, and the spring 5 can reset the push shaft 31.

[0050] When each group of electrical connectors 1 includes two electrical connectors 1, in the first working condition, the pressing part 312 is pressed, the pressing part 312 drives the main body 311 to move relative to the cover plate 4, the spring 5 is compressed, and the clamp spring 32 moves from the first position to the second position. When the clamp spring 32 is in the first position, it cooperates with one end of the two electrical connectors 1 located in the accommodating cavity at the same time, and the circuit is turned on; when the clamp spring 32 is in the second position, it is released from the one end of the two electrical connectors 1 located in the accommodating cavity, and the circuit is turned off. When the pressing part 312 is released, under the restoring action of the spring 5, the spring 5 pushes the pressing part 312 in the direction away from the fixing column 21, and the pressing part 312 drives the main body 311 to move relative to the cover plate 4, and the clamp spring 32 moves from the second position to the first position, and the circuit is switched from disconnected to connected. In the second working condition, the pressing part 312 is pressed, and the pressing part 312 drives the main body 311 to move relative to the cover plate 4, the spring 5 is compressed, and the clamp spring 32 moves from the first position to the second position. When the clamp spring 32 is in the first position, it is released from the end of the two electrical connectors 1 located in the accommodating cavity, and the circuit is disconnected; when the clamp spring 32 is in the second position, it is simultaneously matched with the end of the two electrical connectors 1 located in the accommodating cavity, and the circuit is turned on. When the pressing part 312 is released, under the restoring action of the spring 5, the spring 5 pushes the pressing part 312 in the direction away from the fixing column 21, and the pressing part 312 drives the main body 311 to move relative to the cover plate 4, and the clamp spring 32 moves from the second position to the first position, and the circuit is switched from on to off.

[0051] When each group of electrical connectors 1 includes three electrical connectors 1, the pressing part 312 is pressed, and the pressing part 312 drives the main body 311 to move relative to the cover plate 4, the spring 5 is compressed, and the clamp spring 32 moves from the first position to the second position. When the clamp spring 32 is in the first position, it simultaneously cooperates with one end of two electrical connectors 1 located in the accommodating cavity near the top of the base 2 among the three electrical connectors 1, and the first circuit is connected at this time; when the clamp spring 32 is in the second position, it simultaneously cooperates with one end of two electrical connectors 1 located in the accommodating cavity near the bottom of the base 2 among the three electrical connectors 1, and the second circuit is connected at this time. When the pressing part 312 is released, under the restoring action of the spring 5, the spring 5 pushes the pressing part 312 in the direction away from the fixing column 21, and the pressing part 312 drives the main body 311 to move relative to the cover plate 4, and the clamp spring 32 moves from the second position to the first position, and the circuit is switched from the second circuit to the first circuit.

[0052] Please refer to Figure 5 , Figure 6 In this embodiment, a first clamping block 22 is provided on the outer surface of the base 2, and the first clamping block 22 has a first clamping surface 221. A second clamping block 42 is provided on the cover plate 4, and the second clamping block 42 has a second clamping surface 421. The first clamping surface 221 is in contact with the second clamping surface 421, and the second clamping block 42 is in contact with the outer side surface of the base 2.

[0053] Two first clamping blocks 22 are symmetrically arranged on the outer surface of the base 2, and the two first clamping blocks 22 are each provided with a first clamping surface 221. Second clamping blocks 42 are symmetrically arranged on the cover plate 4, and the two second clamping blocks 42 are each provided with a second clamping surface 421. The two first clamping surfaces 221 are respectively fitted with the two second clamping surfaces 421, and the two second clamping blocks 42 are both fitted with the outer side surface of the base 2, thereby realizing the clamping fit between the base 2 and the cover plate 4, and the clamping fit is more efficient than the bolt connection.

[0054] In this embodiment, the first clamping block 22 is provided with a guiding bevel 222, which is connected to the first clamping surface 221. After the second clamping block 42 is guided by the guiding bevel 222, the first clamping surface 221 fits with the second clamping surface 421, and the second clamping block 42 fits with the outer side surface of the base 2.

[0055] The first clamping block 22 is provided with a transition surface 223, and the transition surface 223 is connected between the guiding inclined surface 222 and the first clamping surface 221. The second clamping block 42 can be deformed. The second clamping block 42 is deformed when guided by the guiding inclined surface 222. The second clamping block 42 recovers after being guided by the guiding inclined surface 222. At this time, the first clamping surface 221 is in contact with the second clamping surface 421, and the second clamping block 42 is in contact with the outer side surface of the base 2, so as to realize the clamping fit between the base 2 and the cover plate 4.

[0056] Please refer to Figure 7 The embodiment of the present application further provides an assembly method of an alarm switch, which is applied to the above-mentioned alarm switch. The assembly method of the alarm switch includes:

[0057] Step S1, injection molding the electrical connector 1 and the base 2 into one body to form an electrical connector.

[0058] During the process of injection molding the electrical connector 1 and the base 2, a plurality of electrical connectors 1 and a plurality of bases 2 may be injection molded into one piece at the same time.

[0059] Exemplarily, the electrical connector 1 includes two groups, each group of electrical connectors 1 includes two electrical connectors 1 , the two electrical connectors 1 in each group of electrical connectors 1 are an integrated structure, and the number of bases 2 is two.

[0060] During the injection molding process, two electrical connectors 1 in each group of electrical connectors 1 are respectively injection molded into one piece with two bases 2, so that two electrical connectors 1 are formed on each base 2, and the two electrical connectors 1 are located on both sides of the base 2. After the injection molding is completed, the electrical connectors 1 are cut to separate the two bases 2, and each base 2 can be assembled separately during assembly.

[0061] Before step S1 , the method further includes: stamping and electroplating the electrical connector 1 .

[0062] It should be pointed out that when stamping and electroplating the electrical connector 1, the electrical connector 1 is generally stamped first and then electroplated. The stamping and electroplating of the electrical connector 1 can be performed on multiple electrical connectors 1 at the same time to improve production efficiency.

[0063] Step S2: disposing the clamp spring 32 on the push shaft 31 to form the push shaft assembly 3.

[0064] In this step, the two clamp springs 32 are respectively disposed in the two clamping grooves 3111 of the push shaft 31, and the two clamp springs 32 and the push shaft 31 are combined into a push shaft assembly 3. It should be noted that step S2 and step S1 can be performed simultaneously.

[0065] Step S3, matching the clamp spring 32 with the electrical connector 1.

[0066] In this step, the two clamp springs 32 are respectively clamped and matched with the two electrical connectors 1 on the base 2 to preliminarily fix the push shaft assembly 3.

[0067] After step S3, the method further includes:

[0068] Sub-step S31 , assembling the spring 5 between the base 2 and the push shaft 31 .

[0069] In this step, the spring 5 is sleeved on the fixing column 21 , and one end of the spring 5 away from the fixing column 21 is in contact with the pressing portion 312 of the push shaft 31 .

[0070] Step S4, detachably connecting the cover plate 4 to the base 2.

[0071] In this step, the first clamping surfaces 221 of the two first clamping blocks 22 are respectively fitted with the second clamping surfaces 421 of the two second clamping blocks 42, and the two second clamping blocks 42 are both fitted with the outer side surface of the base 2 to achieve the clamping fit between the base 2 and the cover 4.

[0072] It should be noted that the above steps S1-S4 can all be executed by an automatic machine to achieve automatic assembly of the alarm switch.

[0073] In summary, the embodiment of the present application provides an alarm switch and an assembly method of the alarm switch. During the assembly of the alarm switch, the electrical connector 1 is first stamped, and then the stamped electrical connector 1 is electroplated. Subsequently, the electrical connector 1 and the base 2 are injection molded as one to form an electrical connector seat. At the same time, the clamp spring 32 is arranged in the slot 3111 of the push shaft 31 to form a push shaft assembly 3. The clamp spring 32 is then clamped and matched with the electrical connector 1, and the spring 5 is sleeved on the fixed column 21, and the end of the spring 5 away from the fixed column 21 is made to abut against the pressing portion 312 of the push shaft 31. Finally, the base 2 is clamped and matched with the cover plate 4 to complete the assembly of the alarm switch.

[0074] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An alarm switch, characterized in that: It includes an electrical connector, a base, a push shaft assembly and a cover plate. The electrical connector and the base are injection molded as one piece. The push shaft assembly is movably connected to the cover plate and is used to cooperate with the electrical connector. The cover plate is detachably connected to the base.

2. The alarm switch according to claim 1, characterized in that: The push shaft assembly comprises a push shaft and a clamp spring, wherein the clamp spring is arranged on the push shaft and is used to cooperate with the electrical connector.

3. The alarm switch according to claim 2, characterized in that: The number of the electrical connectors is two groups, the two groups of electrical connectors are both injection-molded as one piece with the base, and the two groups of electrical connectors are arranged on both sides of the base.

4. The alarm switch according to claim 3, characterized in that: Each group of the electrical connectors includes a plurality of electrical connectors, and the clamp spring is used to cooperate with two adjacent electrical connectors.

5. The alarm switch according to claim 2, characterized in that: An accommodating cavity is formed between the cover plate and the base, and the push shaft portion is located in the accommodating cavity.

6. The alarm switch according to claim 5, characterized in that: The push shaft includes a main body and a pressing part connected to each other, the main body is located in the accommodating cavity, a through hole is provided on the cover plate, and the pressing part extends to the outside of the accommodating cavity through the through hole.

7. The alarm switch according to claim 1, characterized in that: The alarm switch also includes a spring. A fixing column is arranged on the base. The spring is sleeved on the fixing column, and one end of the spring away from the fixing column is in contact with the push shaft assembly.

8. The alarm switch according to claim 1, characterized in that: A first clamping block is arranged on the outer surface of the base, the first clamping block is provided with a first clamping surface, a second clamping block is arranged on the cover plate, the second clamping block is provided with a second clamping surface, the first clamping surface is fitted with the second clamping surface, and the second clamping block is fitted with the outer side surface of the base.

9. The alarm switch according to claim 8, characterized in that: The first clamping block is provided with a guiding slope, and the guiding slope is connected to the first clamping surface. After the second clamping block is guided by the guiding slope, the first clamping surface fits with the second clamping surface, and the second clamping block fits with the outer side surface of the base.

10. The alarm switch according to claim 9, characterized in that: The first clamping block is provided with a transition surface, and the transition surface is connected between the guiding inclined surface and the first clamping surface.

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