A single-throw draw-out knife switch

Abstract

The utility model relates to the technical field of knife switch, concretely is a single investment knife switch, including insulating base, be provided with the adapter on the insulating base, be provided with the knife on the adapter, the handle is provided with at the knife end, be provided with the bearing groove on the knife, the back of bearing groove is provided with the push rod, one end of push rod passes through bearing groove and is connected with the push -out board, both ends of bearing groove are provided with spring contact, spring contact is connected with the safety component, can bear the safety component through the bearing groove that is set up on the knife, through the safety component, when the short circuit appears on the circuit that is equipped with the knife switch, the fuse that installs on the safety component will appear the fuse, thereby disconnects the circuit, guarantees the circuit safety, through the cooperation of push rod and push -out board, can quickly push out the safety component from the bearing groove, is convenient for the replacement of safety component quickly.

Description

Technical Field

[0001] This utility model relates to the field of knife switch technology, specifically a single-throw knife switch. Background Technology

[0002] A single-throw knife switch, also known as a knife switch, is a switch with a moving contact knife that engages (or disengages) with a stationary contact knife holder on a base to connect (or disconnect) a circuit. It typically consists of an insulating base plate, a moving contact knife, a stationary contact holder, an arc-extinguishing device, a safety baffle, and an operating mechanism.

[0003] In the case of a short circuit, the existing single-throw knife switch cannot disconnect the circuit in time, which can easily lead to further danger. To address this problem, a new single-throw knife switch is needed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the current knife switch, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a single-throw knife switch. The support groove on the knife switch can support a fuse component. When a short circuit occurs in the circuit with the knife switch, the fuse installed on the fuse component will blow, thereby disconnecting the circuit and ensuring circuit safety. Through the cooperation of the push rod and the ejection plate, the fuse component can be quickly pushed out of the support groove, which facilitates quick replacement of the fuse component.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A single-throw knife switch, comprising an insulating base;

[0009] An adapter is provided on the insulating base, and a switch is provided on the adapter. A handle is provided at the end of the switch. A bearing groove is provided on the switch. A push rod is provided on the back of the bearing groove. One end of the push rod passes through the bearing groove and connects to the push plate. Spring contacts are provided at both ends of the bearing groove. The spring contacts are connected to a safety assembly. The safety assembly includes a snap-fit ​​seat. An installation groove is provided on the snap-fit ​​seat. A fuse is provided in the installation groove. The fuse is fixedly connected to the snap-fit ​​seat by a fixing screw.

[0010] In a preferred embodiment of the single-throw knife switch described in this utility model, the two ends of the locking base are provided with limiting grooves, and the limiting grooves are engaged with the spring contacts.

[0011] In a preferred embodiment of the single-throw knife switch described in this utility model, a fixed base is installed on the insulating base, and a knife clip is installed on the fixed base, the knife clip being engaged with the knife switch.

[0012] In a preferred embodiment of the single-throw knife switch described in this utility model, a wire fixing assembly is installed on the outside of the fixed base and the adapter base. The wire fixing assembly includes a connecting base, a wire hole is opened on the connecting base, a locking screw is installed above the wire hole, and the connecting base is connected to the adapter base through a conductive plate.

[0013] In a preferred embodiment of the single-throw knife switch described in this utility model, two adapter seats and two fixed seats are provided, and the adapter seats and the fixed seats are arranged on the same axis.

[0014] In a preferred embodiment of the single-throw knife switch described in this utility model, when the knife switch is in contact with the knife clamp, the transition seat and the fixed seat are in a conductive state.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the bearing groove opened on the knife switch can support the fuse component. When a short circuit occurs in the circuit with the knife switch, the fuse installed on the fuse component will melt, thereby disconnecting the circuit and ensuring circuit safety. Through the cooperation of the push rod and the push plate, the fuse component can be quickly pushed out of the bearing groove, which facilitates the quick replacement of the fuse component. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a front view structural diagram of the present invention;

[0020] Figure 4This is a three-dimensional structural diagram of the insurance component of this utility model.

[0021] In the diagram: 100 Insulating base, 110 Adapter, 120 Knife switch, 130 Handle, 140 Bearing groove, 141 Push rod, 142 Push-out plate, 143 Spring contact, 150 Fuse assembly, 151 Snap-in socket, 152 Mounting groove, 153 Fuse, 154 Fixing screw, 155 Limiting groove, 160 Fixing base, 170 Knife clip, 180 Wire fixing assembly, 181 Connector, 182 Wire hole, 183 Locking screw, 184 Conductive plate. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] This utility model provides the following technical solution: a single-throw knife switch, in use, a fuse assembly can be carried by a bearing groove on the knife switch. When a short circuit occurs in the circuit with the knife switch, the fuse installed on the fuse assembly will melt, thereby disconnecting the circuit and ensuring circuit safety. Through the cooperation of the push rod and the ejection plate, the fuse assembly can be quickly pushed out of the bearing groove, which facilitates quick replacement of the fuse assembly.

[0027] Figures 1-4 The diagram shown is a structural schematic of the first embodiment of a single-throw knife switch according to this utility model. Please refer to [link / reference]. Figures 1-4 The main body of a single-throw knife switch according to this embodiment includes an insulating base 100.

[0028] An adapter 110 is provided on the insulating base 100, and a switch 120 is provided on the adapter 110. A handle 130 is provided at the end of the switch 120. A bearing groove 140 is provided on the switch 120. A push rod 141 is provided on the back of the bearing groove 140. One end of the push rod 141 passes through the bearing groove 140 and is connected to the push plate 142. Spring contacts 143 are provided at both ends of the bearing groove 140. The spring contacts 143 are connected to the safety assembly 150. The safety assembly 150 includes a snap-fit ​​seat 151. An installation groove 152 is provided on the snap-fit ​​seat 151. A fuse 153 is provided in the installation groove 152. The fuse 153 is fixedly connected to the snap-fit ​​seat 151 by a fixing screw 154.

[0029] The two ends of the snap-fit ​​base 151 are provided with limit grooves 155, which are snapped into the spring contact 143. A fixed base 160 is installed on the insulating base 100, and a knife clip 170 is installed on the fixed base 160. The knife clip 170 is snapped into the switch 120. A wire fixing assembly 180 is installed on the outside of the fixed base 160 and the adapter base 110. The wire fixing assembly 180 includes a connecting base 181, a wire hole 182 is provided on the connecting base 181, and a locking screw 183 is installed above the wire hole 182. The connecting base 181 is connected to the adapter base 110 through a conductive sheet 184. There are two adapter bases 110 and fixed bases 160, and the adapter bases 110 and fixed bases 160 are arranged on the same axis. When the switch 120 contacts the knife clip 170, the adapter base 110 and the fixed base 160 are in a conductive state.

[0030] The insulating base 100 supports the adapter 110 and the fixed base 160. The adapter 110 is used to rotatably connect the switch 120, enabling the switch 120 to rotate. The switch 120 supports the handle 130 and has a support groove 140. The handle 130 facilitates driving the switch 120, and the support groove 140 supports the safety assembly 150. The push rod 141 is connected to the ejection plate 142, allowing the safety assembly 150 to be ejected through the ejection plate 142. The spring contact 143 connects to the limit grooves 155 at both ends of the safety assembly 150, limiting the movement while simultaneously ensuring circuit continuity. The safety assembly 150 is used to prevent short circuits in the circuit where the switch 120 is located. When the circuit is short-circuited, to ensure circuit safety, the mounting slot 151 is used to open the mounting groove 152, which is used to carry the fuse 153. The fuse 153 melts when the circuit is short-circuited, causing the circuit to break. The fixing screw 154 is used to fix the fuse 153. The limiting groove 155 is used to cooperate with the spring contact 143. The fixing seat 160 is used to carry the knife clip 170, which is used to clamp the switch 120 to realize the circuit conduction. The wire fixing assembly 180 is used to fix the wire. The wire hole 182 is used to facilitate the insertion of the wire. The locking screw 183 is used to fix the wire. The conductive plate 184 is used to connect the wire fixing assembly and the circuit loop.

[0031] The bearing groove 140 on the switch 120 can support the fuse assembly 150. When a short circuit occurs in the circuit with the switch 120, the fuse 153 installed on the fuse assembly 150 will blow, thereby disconnecting the circuit and ensuring circuit safety. The fuse assembly 150 can be quickly pushed out of the bearing groove 140 by the cooperation of the push rod 141 and the push plate 142, which facilitates the quick replacement of the fuse assembly 150.

[0032] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A single-throw knife switch, characterized in that: Includes an insulating base (100); An adapter (110) is provided on the insulating base (100), and a switch (120) is provided on the adapter (110). A handle (130) is provided at the end of the switch (120). A bearing groove (140) is formed on the switch (120), and a push rod (141) is provided on the back of the bearing groove (140). One end of the push rod (141) passes through the bearing groove (140) and connects to the push plate (142). Spring contacts (143) are provided at both ends of the bearing groove (140). The spring contacts (143) are connected to the safety assembly (150). The safety assembly (150) includes a snap-fit ​​seat (151). An installation groove (152) is provided on the snap-fit ​​seat (151). A fuse (153) is provided in the installation groove (152). The fuse (153) is fixedly connected to the snap-fit ​​seat (151) by a fixing screw (154).

2. A single-throw knife switch according to claim 1, characterized in that: The two ends of the snap-fit ​​base (151) are provided with limiting grooves (155), and the limiting grooves (155) are snap-fitted with the spring contact (143).

3. A single-throw knife switch according to claim 1, characterized in that: A fixing seat (160) is installed on the insulating base (100), and a knife clip (170) is installed on the fixing seat (160). The knife clip (170) is engaged with the knife switch (120).

4. A single-throw knife switch according to claim 3, characterized in that: A wire fixing assembly (180) is installed on the outside of the fixing base (160) and the adapter base (110). The wire fixing assembly (180) includes a connecting base (181). A wire hole (182) is opened on the connecting base (181). A locking screw (183) is installed above the wire hole (182). The connecting base (181) is connected to the adapter base (110) through a conductive sheet (184).

5. A single-throw knife switch according to claim 1, characterized in that: There are two adapters (110) and fixed bases (160), and the adapters (110) and fixed bases (160) are arranged on the same axis.

6. A single-throw knife switch according to claim 1, characterized in that: When the switch (120) contacts the knife clamp (170), the adapter (110) and the fixed seat (160) are in a conductive state.

Images