Pull rod in temperature limiter

Abstract

The utility model provides a pull rod in a temperature limiter. The pull rod comprises a first limiting part, a second limiting part, a pull rod main body, a bending part, a bending plate, a stamping part and a stamping groove, according to the utility model, one bending part is replaced by the two stamping grooves which are formed through one-time stamping, at the moment, the formed part in the bending part in the middle of the pull rod is smaller, and the rest part does not need to be stamped, so that the pull rod is convenient to process and position, and the pull rod is prevented from running in the stamping process; the original situation that large-range stamping is needed is replaced, the machining precision of the pull rod is improved, and the pull rod is machined more rapidly and more easily.

Description

Technical Field

[0001] This utility model relates to the technical field of temperature limiter accessories, specifically to a pull rod in a temperature limiter. Background Technology

[0002] A thermostat is a common temperature control device used in household appliances such as rice cookers. Its working principle involves demagnetizing a soft magnet at its Curie temperature, causing a corresponding hard magnetic mechanism to activate and automatically switch the circuit. A thermostat typically includes a magnetic support, a pull rod, a soft magnet, a hard magnet, and a spring-loaded reset component. The pull rod is an accessory used for removing and installing the magnetic thermostat support in rice cookers. (See attached image) Figure 1 The image shows a common pull rod with three different U-shaped bends, each with varying dimensions and angles. The two lower bends engage with the circuit breaker's lever to control the circuit's on / off state. The middle and upper bends are pre-machined at the factory, while the lower bend is manually bent during installation with the lever. During the stamping process of the middle bend, due to the small size of the original pull rod parts and the large bend length, resulting in a large stamping area, insufficient stamping accuracy and difficulty in positioning are common problems. Furthermore, the pull rod parts are prone to shifting during stamping, affecting the overall processing of the pull rod. Utility Model Content

[0003] The purpose of this utility model is to design a pull rod for a temperature limiter to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a pull rod body comprising a first limiting part and a second limiting part, wherein the first limiting part is a bending part, the bending part comprising two symmetrically distributed bending plates, the second limiting part having a stamping part at one end near the first limiting part, a lever installed between the stamping part and the bending part, the stamping part comprising two stamping grooves formed in one stamping, each stamping groove being aligned with one of the bending plates.

[0004] Furthermore, the openings of the two stamping grooves face opposite directions.

[0005] Furthermore, the stamping part also includes reinforcing ribs provided on the second limiting part.

[0006] Furthermore, the reinforcing rib and the two stamping grooves are stamped together in one step, and the reinforcing rib is located at the center of the second limiting part.

[0007] Furthermore, the reinforcing rib is in the shape of a straight groove.

[0008] Furthermore, the two stamping grooves are symmetrically distributed about the first limiting part or are centrally symmetrical about a point on the symmetrical plane.

[0009] Furthermore, it also includes a third limiting part, which is a flat plate, and the lever is provided with a mounting groove that cooperates with the flat plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses two stamping grooves formed in one stamping to replace one of the bending parts. At this time, the formed part in the bending part in the middle of the tie rod is smaller, and the rest does not need to be stamped, which facilitates the processing and positioning of the tie rod and prevents the tie rod from running during the stamping process; it replaces the original situation that requires a large-scale stamping, improves the processing accuracy of the tie rod, and makes the processing of the tie rod faster and simpler. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. 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.

[0012] Figure 1 This is a schematic diagram of the overall structure of a common existing tie rod;

[0013] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0014] Among them: 1. Second limiting part; 2. First limiting part; 3. Bending plate; 4. Stamping groove; 5. Reinforcing rib; 6. Third limiting part. Detailed Implementation

[0015] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0016] Example: Please refer to Figure 1-2A pull rod in a temperature limiter includes a pull rod body with a first limiting part 2 and a second limiting part 1. The first limiting part 2 is a bent part, which includes two symmetrically distributed bent plates 3. The second limiting part 1 has a stamping part at one end near the first limiting part 2. A lever is installed between the stamping part and the bent part. The stamping part includes two stamping grooves 4 formed in one stamping, each stamping groove 4 being aligned with a bent plate 3. Therefore, compared with the original pull rod, the second limiting part 1 of the pull rod in this invention uses two stamping grooves 4 formed in one stamping to replace one of the bent parts in the original pull rod. Therefore, at this point, the formed portion in the bend in the middle of the tie rod is relatively small, and the rest does not need to be stamped, which facilitates the processing and positioning of the tie rod and prevents it from running during the stamping process. This replaces the original method that required a large area of ​​stamping, improving processing accuracy and making the processing of the tie rod faster and simpler. In addition, since some original tie rods showed poor engagement when the thermostat was pressed sideways during production, the design of the stamping groove 4, compared to the bend in the transmission, has a larger pushing radius. After verification, it can also effectively solve the problem of the thermostat not engaging sideways. And the two stamping grooves 4 The opposite orientation of the slots further increases the contact range between the second limiting part 1 and the lever, effectively ensuring the stability of the lever's movement. The stamping part also includes a reinforcing rib 5 on the second limiting part 1, located at the center of the second limiting part 1, effectively improving the strength of the lever itself and preventing deformation during repeated lever movements. The reinforcing rib 5 and the two stamping slots 4 are stamped together in one piece, reducing additional stamping processes. The reinforcing rib 5 has a straight slot, making its outer wall smoother and preventing excessive stress concentration. The two stamping slots... The slots 4 are symmetrically distributed about the first limiting part 2 or centrally symmetrical about a point on the symmetrical plane. When symmetrically distributed, the slot openings of the two stamping slots 4 face the same direction. When centrally symmetrical, the slot openings of the two stamping slots 4 face opposite directions. In different embodiments, the slot openings of the two stamping slots 4 may face different directions. In addition, the pull rod also includes a third limiting part 6, which is a flat plate. The lever is provided with a mounting groove that cooperates with the flat plate. When it is necessary to install the lever on the pull rod, it is only necessary to insert the flat plate into the mounting groove and then rotate the pull rod to make the flat plate and the mounting groove misaligned.

[0017] Working principle: The second limiting part 1 of the pull rod in this utility model replaces one of the bending parts in the original pull rod by using two stamping grooves 4 formed in one stamping process; therefore, during the processing of the pull rod, the formed part in the bending part in the middle of the pull rod is small, and the rest of the part does not need to be stamped, which facilitates the processing and positioning of the pull rod and prevents the pull rod from running during the stamping process; and it replaces the original pull rod where the bending part in the middle of the pull rod needs to be stamped over a large area, improving the processing accuracy of the pull rod and making the processing of the pull rod faster and simpler.

[0018] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "upper," "lower," "left," "right," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0019] 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-disclosed 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. A pull rod in a temperature limiter, comprising a pull rod body having a first limiting part (2) and a second limiting part (1), wherein the first limiting part (2) is a bent part, and the bent part includes two symmetrically distributed bent plates (3), characterized in that: The second limiting part (1) has a stamping part at one end near the first limiting part (2), and the lever is installed between the stamping part and the bending part. The stamping part includes two stamping grooves (4) formed by one stamping, and each stamping groove (4) is aligned with one of the bending plates (3).

2. The pull rod in the temperature limiter according to claim 1, characterized in that: The openings of the two stamping grooves (4) face opposite directions.

3. The pull rod in the temperature limiter according to claim 1, characterized in that: The stamping part also includes a reinforcing rib (5) provided on the second limiting part (1).

4. The pull rod in the temperature limiter according to claim 3, characterized in that: The reinforcing rib (5) and the two stamping grooves (4) are stamped together in one step, and the reinforcing rib (5) is located at the center of the second limiting part (1).

5. The pull rod in the temperature limiter according to claim 3, characterized in that: The reinforcing rib (5) is in the shape of a straight groove.

6. The pull rod in the temperature limiter according to claim 1, characterized in that: The two stamping grooves (4) are symmetrically distributed about the first limiting part (2) or about a point on the symmetrical plane.

7. The pull rod in the temperature limiter according to claim 1, characterized in that: It also includes a third limiting part (6), which is a flat plate, and the lever is provided with a mounting groove that cooperates with the flat plate.

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