Tension spring type reset switch

Abstract

The utility model belongs to the technical field of reset switches, and discloses a tension spring type reset switch which comprises a lock catch piece and a spring bolt piece, one side of the lock catch piece sinks inwards to form a lock groove, an electromagnet is fixedly connected in the lock groove, the spring bolt piece comprises a shell part and a spring bolt, the spring bolt is installed in the shell part, one side of the shell part is open to form an insertion groove, and the insertion groove is fixedly connected with the electromagnet. A base plate is arranged in the inserting groove, a limiting plate and a clamping block are arranged on the side, facing the interior of the shell part, of the base plate, the limiting plate is located on one side of the clamping block, one side of the limiting plate is fixedly connected with the base plate, a tension spring is fixedly connected between the clamping block and the limiting plate, and a clamping groove matched with the clamping block is formed in the spring bolt. The base plate is inserted into the inserting groove, so that the clamping block and the tension spring are installed in the shell part, the clamping block is clamped with the clamping groove in the spring bolt, when a person needs to replace the tension spring, the person only needs to pull the base plate to move to the outside of the shell part, the tension spring can be detached for replacement, and the later maintenance difficulty is low.

Description

Technical Field

[0001] This utility model belongs to the field of reset switch technology, specifically relating to a spring-loaded reset switch. Background Technology

[0002] The structure of washing machine door switches on the market is relatively simple, and their reset relies on the elasticity of the metal parts themselves. Due to the limitations of the materials themselves, long-term use leads to aging or weakening of bending resistance, causing switch failure and seriously affecting the safety of the entire machine. To improve the lifespan of washing machine door switches, switch devices using tension springs to achieve the reset function have emerged. Although existing devices extend the service life by using tension springs, replacing the tension springs requires disassembling a large number of fixing structures, resulting in high maintenance costs and low maintenance efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a spring-loaded reset switch to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a spring-loaded reset switch, comprising a latching member installed on the washing machine door and a locking tongue member on the washing machine body, wherein the latching member is recessed on one side facing the locking tongue member to form a locking groove, and an electromagnet is fixedly connected inside the locking groove; the locking tongue member includes a housing part and a movable locking tongue, the locking tongue being installed inside the housing part, and one side of the housing part being open to form a slot; a pluggable base plate is provided inside the slot; a limiting plate and a locking block are provided on the side of the base plate facing the inside of the housing part; the limiting plate is located on one side of the locking block, and one side of the limiting plate is fixedly connected to the base plate; a tension spring is fixedly connected between the locking block and the limiting plate; and a locking groove matching the locking block is provided on the locking tongue.

[0005] Preferably, two positioning plates are symmetrically fixedly connected to the outer side of the housing portion, the slot is located between the two positioning plates, and the side of the two positioning plates away from the housing portion is open to form a positioning groove. Two limiting blocks are symmetrically fixedly connected to the inner wall of the positioning groove, and side rods are fixedly connected to both sides of the base plate symmetrically, and the side rods match the positioning grooves.

[0006] Preferably, one side of the housing portion is open to form a guide groove, the guide groove is above the slot, and a pull head is fixedly connected to the top of the latch, the free side of the pull head extends through the guide groove to the outside of the housing portion.

[0007] Preferably, a guide rod is fixedly connected to one side of the card block, and the free end of the guide rod slides through the limiting plate.

[0008] Preferably, the locking element includes a first base block, the locking groove is formed on one side of the first base block, and a first side plate is fixedly connected to the top and bottom of the first base block, and a first screw is screwed onto the first side plate.

[0009] Preferably, the housing portion includes a second base block, the top and bottom of which are fixedly connected to a second side plate, and a second screw is screwed onto the second side plate.

[0010] Compared with the prior art, the advantages of this utility model are: the device requires the disassembly of a large number of fixing structures when replacing the tension spring, resulting in higher maintenance costs and lower maintenance efficiency.

[0011] (1) This utility model sets up a base plate, a limiting plate, a tension spring and a locking block. The base plate is inserted into the slot, so that the locking block and tension spring are installed inside the housing part, and the locking block engages with the locking groove on the locking tongue. When the personnel need to replace the tension spring, they only need to pull the base plate to the outside of the housing part to disassemble the tension spring for replacement. This allows the personnel to replace the tension spring without disassembling a large number of fixed structures, reducing the difficulty of later maintenance and improving maintenance efficiency.

[0012] (2) By setting a side rod, a positioning plate and a limiting block, when the substrate is inserted into the slot, the side rod on the substrate engages with the positioning groove on the positioning plate, and the limiting block abuts against the side rod, so that the substrate is more secure after installation, and the locking block and tension spring are more stable after installation, thereby improving the stability of the device during use. Attached Figure Description

[0013] Figure 1 This is one of the perspective views of this utility model;

[0014] Figure 2 This is a second perspective view of the present utility model;

[0015] Figure 3 This is a cross-sectional view of the locking fastener of this utility model;

[0016] Figure 4 This is one of the cross-sectional views of the locking tongue component of this utility model;

[0017] Figure 5 This is the second sectional view of the locking tongue component of this utility model;

[0018] Figure 6 for Figure 4 Enlarged view of section A in the middle;

[0019] In the diagram: 1. Locking fastener; 11. First base block; 12. First side plate; 13. First screw; 14. Lock groove; 15. Electromagnet; 2. Locking tongue; 21. Second base block; 22. Second side plate; 23. Second screw; 24. Locking tongue; 25. Slot; 26. Pull head; 27. Locking block; 28. Guide rod; 29. ​​Tension spring; 210. Base plate; 211. Side rod; 212. Limiting plate; 213. Slot; 214. Guide groove; 215. Positioning plate; 216. Positioning groove; 217. Limiting block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-6 As shown, this utility model provides the following technical solution:

[0022] A spring-loaded reset switch includes a latch 1 installed on the washing machine door and a latch 2 installed on the washing machine body. The latch 1 is recessed on the side facing the latch 2 to form a locking groove 14. An electromagnet 15 is fixedly connected inside the locking groove 14. The latch 2 includes a housing part and a movable latch 24. The latch 24 is installed inside the housing part, and one side of the housing part is open to form a slot 213. A pluggable base plate 210 is provided inside the slot 213. A limit plate 212 and a locking block 27 are provided on the side of the base plate 210 facing the inside of the housing part. The limit plate 212 is located on one side of the locking block 27, and one side of the limit plate 212 is fixedly connected to the base plate 210. A tension spring 29 is fixedly connected between the locking block 27 and the limit plate 212. A locking groove 25 matching the locking block 27 is provided on the latch 24.

[0023] With the above technical solution, when personnel need to install the device, the locking element 1 is fixed to the washing machine door, and then the housing part is fixed to the washing machine body. After the housing part and the locking element 1 are fixed, the base plate 210 is taken out and inserted into the slot 213, thereby allowing the base plate 210 to drive the limiting plate 212 to move, so that the limiting plate 212, the tension spring 29 and the locking block 27 move into the housing part until the locking block 27 engages with the slot 25 on the locking tongue 24. When the personnel close the washing machine door and start the washing machine, the electromagnet 15 is energized and generates magnetism, thereby attracting the locking tongue 24, causing the locking tongue 24 to move into the locking groove 14 inside the locking element 1, and thus allowing... When the washing machine door remains closed, the movement of the latch 24 causes the locking block 27 to move. The movement of the locking block 27 stretches the tension spring 29, causing it to tend to retract. When the washing machine finishes its work, the electromagnet 15 is de-energized and loses its magnetism, causing the tension spring 29 to rebound. This causes the latch 24 to move back to the outside of the locking groove 14, allowing personnel to open the washing machine door normally. When personnel need to replace the tension spring 29 or other structures, they pull the base plate 210, causing it to move the locking block 27 and tension spring 29. This separates the locking block 27 from the locking groove 25 on the latch 24, allowing the locking block 27 and tension spring 29 to be removed and replaced, thus improving the convenience of device maintenance.

[0024] After the substrate 210 is installed, in order to prevent the substrate 210 from accidentally falling off, such as Figures 1-2 , Figures 4-6 As shown, two positioning plates 215 are symmetrically fixedly connected to the outer side of the housing part, the slot 213 is located between the two positioning plates 215, and the side of the two positioning plates 215 away from the housing part is open to form a positioning groove 216. Two limiting blocks 217 are symmetrically fixedly connected to the inner wall of the positioning groove 216. Side rods 211 are fixedly connected to both sides of the base plate 210 symmetrically, and the side rods 211 match the positioning groove 216.

[0025] In this embodiment, when the substrate 210 is inserted into the slot 213, the substrate 210 will simultaneously drive the side rod 211 to move, thereby allowing the side rod 211 to engage with the positioning groove 216 on the positioning plate 215. The limiting block 217 inside the positioning groove 216 abuts against the side rod 211, thereby making the substrate 210, the limiting plate 212, the tension spring 29 and the locking block 27 more stable after installation, preventing the substrate 210 from accidentally falling off after installation, and making the locking block 27 move more smoothly.

[0026] To make the locking tongue 24 easier to pull, such as Figures 4-5 As shown, one side of the housing portion is open to form a guide groove 214, which is located above the slot 213. A pull head 26 is fixedly connected to the top of the latch 24, and the free side of the pull head 26 extends through the guide groove 214 to the outside of the housing portion.

[0027] When block 27 moves, in order to make the movement of block 27 more stable, such as Figures 4-5 As shown, a guide rod 28 is fixedly connected to one side of the locking block 27, and the free end of the guide rod 28 slides through the limiting plate 212.

[0028] In this embodiment, when the locking block 27 moves, the guide rod 28 and the limiting plate 212 cooperate to make the movement of the locking block 27 more stable.

[0029] Specifically, in one embodiment, regarding the above-mentioned locking member 1, as shown in the figure, the locking member 1 includes a first base block 11, a locking groove 14 is formed on one side of the first base block 11, and a first side plate 12 is fixedly connected to the top and bottom of the first base block 11, and a first screw 13 is screwed onto the first side plate 12.

[0030] In this embodiment, when it is necessary to fix the locking member 1, the first base block 11 is placed at the position to be fixed, and the first screw 13 on the first side plate 12 is rotated so that the first screw 13 enters into another object, thereby fixing the first base block 11.

[0031] Furthermore, in this utility model, regarding the aforementioned shell portion, as follows: Figures 1-5 As shown, the housing includes a second base block 21, and a second side plate 22 is fixedly connected to the top and bottom of the second base block 21. A second screw 23 is screwed onto the second side plate 22.

[0032] In this embodiment, when it is necessary to fix the second base block 21, the second base block 21 is placed at the position to be fixed, and the second screw 23 on the second side plate 22 is rotated so that the second screw 23 enters into other objects, thereby fixing the second base block 21.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pull spring return switch characterized by: The application relates to a lock catch (1) and a lock tongue (2) mounted on a washing machine door and a washing machine body respectively, wherein the lock catch (1) is recessed on one side facing the lock tongue (2) to form a lock slot (14), the inside of the lock slot (14) is fixedly connected with an electromagnet (15), the lock tongue (2) comprises a shell part and a movable lock tongue (24), the lock tongue (24) is mounted in the inside of the shell part, one side of the shell part is open to form a plug slot (213), the plug slot (213) is provided with a plug-in base plate (210) in the inside, one side of the base plate (210) facing the inside of the shell part is provided with a limiting plate (212) and a clamping block (27), the limiting plate (212) is located on one side of the clamping block (27), one side of the limiting plate (212) is fixedly connected with the base plate (210), a tension spring (29) is fixedly connected between the clamping block (27) and the limiting plate (212), and a clamping groove (25) matched with the clamping block (27) is formed in the lock tongue (24).

2. A return switch of the type defined in claim 1, characterised in that: Two positioning plates (215) are fixedly connected on the outside of the shell part in a symmetrical mode, the plug slot (213) is located between the two positioning plates (215), and one side of the two positioning plates (215) away from the shell part is open to form a positioning slot (216), the inner wall of the positioning slot (216) is fixedly connected with two limiting blocks (217) in a symmetrical mode, and the two sides of the base plate (210) are fixedly connected with side rods (211) in a symmetrical mode.

3. A return switch according to claim 1 or 2, characterised in that: One side of the shell part is open to form a guide slot (214), the guide slot (214) is located above the plug slot (213), a pull head (26) is fixedly connected with the top of the lock tongue (24), and the free side of the pull head (26) extends to the outside of the shell part after penetrating through the guide slot (214).

4. A return switch according to claim 1 or 2, characterised in that: The clamping block (27) is fixedly connected with a guide rod (28) on one side, and the free end of the guide rod (28) slidably penetrates through the limiting plate (212).

5. A return switch according to claim 1 or 2, wherein: The lock catch (1) comprises a first base block (11), the lock slot (14) is formed on one side of the first base block (11), and the top and bottom of the first base block (11) are fixedly connected with first side plates (12), and the first side plates (12) are screw-connected with first screw rods (13).

6. A return switch according to claim 1 or 2, wherein: The shell part comprises a second base block (21), the top and bottom of the second base block (21) are fixedly connected with second side plates (22), and the second side plates (22) are screw-connected with second screw rods (23).

Images