Gas burner control valve

Abstract

The utility model provides a kind of gas stove control valve, including valve body, bracket and microswitch, it is equipped with limit hole one on microswitch, bracket rear end detachably connected on valve body, valve body front end is protruding and is equipped with the limit hole one corresponding limit post, bracket front end is equipped with the elastic clamping groove that can clamp microswitch, elastic clamping groove bottom is equipped with the limit hole two corresponding with limit post. Bracket and valve body detachably connect, to limit the relative position of bracket front end, the limit hole two of bracket rear end can be very conveniently sleeved on limit post, since limit post is additionally provided on valve body, the position of bracket relative to valve body is more certain, and it is simple and convenient to operate. Limit hole one on microswitch can be conveniently sleeved on limit post in elastic clamping groove, to accurately limit the horizontal position of microswitch, and elastic clamping groove limits the longitudinal position of microswitch, so the gas stove control valve is simple in structure, and the positioning of bracket and microswitch is accurate, and installation is also very convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of gas furnace manufacturing technology, and in particular to a gas furnace control valve. Background Technology

[0002] The control valve is a crucial component of a gas stove, comprising at least a valve stem, a push block on the valve stem, and a micro ignition switch mounted on the valve body. The micro ignition switch has a spring-loaded contact. During ignition, pressing the external knob on the gas stove lowers the control valve stem and push block, causing the push block to actuate the spring-loaded contact, thus igniting the gas stove. The micro ignition switch is mounted via a bracket. One end of the bracket connects to the control valve body, while the other end is a flat plate with a through hole. The micro ignition switch is secured to the flat plate with at least two bolts. In practice, it has been found that using bolts can scratch the micro ignition switch or damage it due to excessive tightening, and assembly is also time-consuming. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a gas furnace control valve that is simple in structure, accurate in positioning, and very convenient and quick to assemble.

[0004] The present invention achieves the above objectives as follows:

[0005] A gas furnace control valve is provided, including a valve body, a bracket, and a micro switch. The micro switch has a vertically penetrating limiting hole. The rear end of the bracket is detachably connected to the valve body. The front end of the valve body has a limiting post corresponding to the limiting hole. The front end of the bracket has an elastic clamping groove for clamping the micro switch. The bottom of the elastic clamping groove has a limiting hole corresponding to the limiting post.

[0006] Furthermore, there are three limiting posts and three limiting holes, two at the front end and one at the rear end, respectively. The two limiting holes at the front end are a notch hole and an open hole, respectively.

[0007] Furthermore, the elastic clamping groove includes elastic cantilever arms on both sides, and the elastic cantilever arms are bent inward in the upper direction to form a pressing edge.

[0008] Furthermore, the bracket is formed by bending a thin-walled metal material, and reinforced edges are formed by partial bending on both sides, the reinforced edges being connected to the elastic cantilever.

[0009] Furthermore, the pressing edge is divided into a semi-circular pressing edge and an obtuse-angle pressing edge, which are respectively set on the elastic cantilever on both sides of the elastic clamping groove.

[0010] Furthermore, a valve stem is provided in the middle of the valve body, and an integral push rod is fitted on the valve stem. The front end of the push rod protrudes to form a top block, and the top block abuts against the contact plate of the micro switch.

[0011] Furthermore, the valve body is also provided with a rod groove, and the front end of the push rod is movable up and down and locked in the rod groove.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a gas furnace control valve with a limiting post at the front end of the valve body. When installing the bracket, the front end of the bracket can be detachably connected to the valve body via two sets of bolts to limit the relative position of the front end of the bracket. The limiting hole two at the bottom of the elastic clamping groove at the rear end of the bracket can be easily fitted onto the limiting post. Due to the addition of the limiting post on the valve body, the position of the bracket relative to the valve body is more certain, and the operation is simple and convenient. When installing the micro switch, the limiting hole one on the micro switch can be easily fitted onto the limiting post in the elastic clamping groove to accurately limit the horizontal position of the micro switch. The elastic clamping groove also limits the longitudinal position of the micro switch. Therefore, this gas furnace control valve has a simple structure, and the positioning of the bracket and micro switch is accurate, and the installation is very convenient and quick. Attached Figure Description

[0013] To make the technical problem to be solved by this utility model, the technical means adopted, and the beneficial effects clearer, the utility model will be further described in detail below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 This is a schematic diagram of the assembly structure of the gas furnace control valve of this utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the split structure;

[0016] Figure 3 for Figure 1 Schematic diagram of the installation structure of the middle bracket;

[0017] Figure 4 This is a schematic diagram showing the relationship between the micro switch and the elastic clamp.

[0018] In the figure, 1 is valve body, 11 is limit post, 13 is valve stem, 14 is push rod, 15 is top block, 16 is rod groove, 2 is bracket, 21 is elastic clamping groove, 22 is limit hole two, 23 is elastic cantilever, 24 is pressing edge, 241 is semi-circular pressing edge, 242 is obtuse angle pressing edge, 25 is reinforcing edge, 3 is micro switch, 31 is limit hole one, and 32 is contact piece. Detailed Implementation

[0019] The gas furnace control valve of this utility model includes a valve body 1, a bracket 2, and a micro switch 3. The micro switch 3 is provided with a vertically penetrating limiting hole 31. The rear end of the bracket 2 is detachably connected to the valve body 1. The front end of the valve body 1 is provided with a limiting post 11 corresponding to the limiting hole 31. The front end of the bracket 2 is provided with an elastic clamping groove 21 for clamping the micro switch 3. The bottom of the elastic clamping groove 21 is provided with a limiting hole 22 corresponding to the limiting post 11.

[0020] As attached Figures 1 to 4 As shown, a limiting post 11 is provided at the front end of the valve body 1. When installing the bracket 2, the front end of the bracket 2 can be detachably connected to the valve body 1 through two sets of bolts to limit the relative position of the front end of the bracket 2. The limiting hole 22 at the bottom of the elastic clamping groove 21 at the rear end of the bracket 2 can be easily fitted onto the limiting post 11. Because the limiting post 11 is added to the valve body 1, the position of the bracket 2 relative to the valve body 1 is more certain, and the operation is simple and convenient. When installing the micro switch 3, the limiting hole 31 on the micro switch 3 can be easily fitted onto the limiting post 11 in the elastic clamping groove 21 to accurately limit the horizontal position of the micro switch 3. The elastic clamping groove 21 also limits the longitudinal position of the micro switch 3. Therefore, this gas furnace control valve has a simple structure, and the positioning of the bracket 2 and the micro switch 3 is accurate, and the installation is also very convenient and quick.

[0021] Preferably, there are three limiting posts 11 and three limiting holes 22, two at the front end and one at the rear end, respectively. The two limiting holes 22 at the front end are a notch hole and an open hole, respectively.

[0022] As shown in the attached figure, the elastic clamping groove 21 has a limiting hole 22 in the middle, which is a complete through hole, and is fitted onto the corresponding limiting post 11. The two limiting holes 22 at the front of the elastic clamping groove 21 are notched holes and L-shaped open holes, respectively. Although they are open holes, they can still play an auxiliary positioning role by interacting with each other. At the same time, they can also play a role in adjusting the relative position, avoiding installation difficulties caused by processing errors or deformation.

[0023] Preferably, the elastic clamping groove 21 includes elastic cantilever arms 23 on both sides, and the elastic cantilever arms 23 are bent inward to form a pressing edge 24.

[0024] As shown in the attached diagram, elastic cantilever arms 23 extending upwards are provided on both sides of the elastic clamping groove 21. After the micro switch 3 is inserted into the elastic clamping groove 21, the elastic cantilever arms 23 on both sides can elastically clamp the micro switch 3 to prevent the micro switch 3 from moving laterally. At the same time, the pressing edges 24 above the two elastic cantilever arms 23 are bent inwards into the elastic clamping groove 21 to elastically press down the micro switch 3 and prevent the micro switch 3 from coming off upwards.

[0025] Preferably, the bracket 2 is formed by bending a thin-walled metal material, and reinforced edges 25 are formed by bending on both sides. The reinforced edges 25 are connected to the elastic cantilever 23.

[0026] As shown in the attached diagram, after the bracket 2 is connected to the valve body 1, the exposed parts can be partially bent to form a reinforcing edge 25, thereby increasing the bending strength of the entire bracket 2. The height of the reinforcing edge 25 extending from the front end of the bracket 2 to the elastic cantilever 23 is lower than that of the elastic cantilever 23. After the two are connected, the structural strength between the front end of the bracket 2 and the elastic clamping groove 21 is ensured, while the elastic downward pressure characteristic of the elastic cantilever 23 itself is retained, making the installation of the micro switch 3 quick and stable.

[0027] Preferably, the pressing edge 24 is divided into a semi-circular pressing edge 241 and an obtuse-angle pressing edge 242, which are respectively disposed on the elastic cantilever 23 on both sides of the elastic clamping groove 21.

[0028] As shown in the attached diagram, the semi-circular pressing edge 241 is formed by bending the free edge of the elastic cantilever 23 upward and inward into a semi-circle, with the edge pointing downward. The obtuse angle pressing edge 242 is formed by bending the free edge of the elastic cantilever 23 inward into an obtuse angle. Thus, when installing the micro switch 3, one side of the micro switch 3 can be placed against the obtuse angle pressing edge 242. While aligning with the limiting post 11, the elasticity of the elastic cantilever 23 allows the other side of the micro switch 3 to be easily pressed into the elastic clamping groove 21 from above the semi-circular pressing edge 241. Both sides of the micro switch 3 are respectively pressed tightly by the inner side of the obtuse angle pressing edge 242 and the semi-circular pressing edge 241, cooperating with the limiting post 11 and the limiting hole 22 to accurately limit the micro switch 3.

[0029] Preferably, the valve body 1 has a valve stem 13 in the middle, and an integral push rod 14 is fitted on the valve stem 13. The front end of the push rod 14 protrudes to form a top block 15, and the top block 15 abuts against the contact piece 32 of the micro switch 3.

[0030] As shown in the attached diagram, the push rod 14 adopts an integrated structure, simplifying its own structure. The connection with the valve stem 13 is easily achieved through a snap ring and an annular groove on the valve stem 13, making assembly simple and convenient. When the gas stove needs ignition, pressing the valve stem 13 lowers the push rod 14, causing it to move downwards in tandem. The top block 15 at the front free end of the push rod 14 moves downwards and abuts against the contact piece 32 of the microswitch 3, thus achieving ignition. This simple assembly structure ensures a smooth and unobstructed ignition process.

[0031] Preferably, the valve body 1 is further provided with a rod groove 16, and the front end of the push rod 14 is movable up and down and is locked in the rod groove 16.

[0032] As shown in the attached figure, the rod groove 16 is a front open groove. During assembly, the front end of the push rod 14 is inserted into the rod groove 16, which can play a role in precise positioning, facilitate installation, and prevent the push rod 14 from being misaligned during use.

[0033] In the detailed description of this utility model, the terms "upper," "lower," "left," "right," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not indicate or imply that the device or component referred to must have a specific orientation or positional relationship. Therefore, they should not be construed as limitations on this utility model. It is understood that the above embodiments only illustrate preferred embodiments of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that for those skilled in the art, without departing from the concept of this utility model, the above technical features can be freely combined, and several modifications and improvements can be made. These all fall within the protection scope of this utility model. Therefore, all equivalent transformations and modifications made with respect to the claims and scope of this utility model should fall within the coverage of the claims of this utility model.

Claims

1. A gas furnace control valve, comprising a valve body (1), a bracket (2), and a micro switch (3), characterized in that: The micro switch (3) is provided with a vertically penetrating limiting hole (31). The rear end of the bracket (2) is detachably connected to the valve body (1). The front end of the valve body (1) is provided with a limiting post (11) corresponding to the limiting hole (31). The front end of the bracket (2) is provided with an elastic clamping groove (21) that can clamp the micro switch (3). The bottom of the elastic clamping groove (21) is provided with a limiting hole (22) corresponding to the limiting post (11).

2. The gas furnace control valve according to claim 1, characterized in that: There are three limiting posts (11) and three limiting holes (22), two at the front end and one at the rear end, respectively. The two limiting holes (22) at the front end are a notch hole and an open hole, respectively.

3. The gas furnace control valve according to claim 1, characterized in that: The elastic groove (21) includes elastic cantilever arms (23) on both sides, and the elastic cantilever arms (23) are bent inward to form a pressing edge (24).

4. The gas furnace control valve according to claim 3, characterized in that: The bracket (2) is formed by bending thin-walled metal material, and reinforced edges (25) are formed by bending on both sides. The reinforced edges (25) are connected to the elastic cantilever (23).

5. The gas furnace control valve according to claim 3, characterized in that: The pressing edge (24) is divided into a semi-circular pressing edge (241) and an obtuse-angle pressing edge (242), which are respectively set on the elastic cantilever (23) on both sides of the elastic clamping groove (21).

6. The gas furnace control valve according to claim 1, characterized in that: The valve body (1) has a valve stem (13) in the middle, and an integral push rod (14) is fitted on the valve stem (13). The front end of the push rod (14) protrudes to form a top block (15), and the top block (15) abuts against the contact piece (32) of the micro switch (3).

7. The gas furnace control valve according to claim 6, characterized in that: The valve body (1) is also provided with a rod groove (16), and the front end of the push rod (14) is movable up and down and is locked in the rod groove (16).

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