Detection device for gas flow of gas furnace

Abstract

The utility model discloses a gas furnace gas flow detection device which comprises a valve body, a mounting pipe is fixedly connected in the top end of the valve body, a detection mechanism is arranged in the valve body, and an adjusting assembly is arranged in the mounting pipe. The detection mechanism comprises a fixing pipe installed in the valve body, a blocking block is connected into one end of the fixing pipe in a clamped mode, a connecting rod is fixedly connected to one side of the blocking block, sliding grooves are symmetrically formed in the fixing pipe, and the two ends of the connecting rod are located in the sliding grooves and slidably connected. The first telescopic springs are symmetrically and fixedly connected between the two ends of the connecting rod and the sliding grooves, the ladder block is fixedly connected to the top end of the connecting rod, the effect of accurately detecting the gas flow can be achieved by observing the pointer and the scale marks through a worker, and gas backflow can be effectively prevented through clamping between the blocking block and the fixing pipe; and the use safety of the fuel gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas flow detection, in particular to a gas flow detection device for a gas furnace. Background Art

[0002] The gas furnace is a national standard energy-saving periodic operation furnace, and the gas flow regulating valve is used to cut off, connect and adjust the gas in the pipeline. It has good control characteristics and closing and sealing performance, and is suitable for the gas medium pipeline of the gas furnace.

[0003] Publication No. CN217381891U discloses a gas flow regulating valve for a gas furnace. The device is provided with a display mechanism. The rotation of the valve stem drives the movable sleeve to move vertically. The anti-slip ring is located on the inner wall of the movable sleeve, and the anti-slip ring is movably connected to the movable sleeve, thereby driving the angle adjustment of the fixed sleeve. One end of the sliding rod is slidably connected to the fixed sleeve, and the sliding rod is fixedly connected to the pointer, thereby driving the rotation of the pointer. The movable ring is located on the inner wall of the dial, and the movable ring is movably connected to the dial, so that the rotation axis position of the pointer is fixed. The dial can accurately display the size of the gas flow, so that the user can better operate the gas furnace. However, the patent still has the following problems in actual use:

[0004] The device fixes the position of the rotating axis of the pointer, and cooperates with the dial to accurately display the size of the gas flow, so that users can better operate the gas stove. In the prior art, most gas flow regulating valves do not have a check function, which may cause gas backflow and pose a safety hazard.

[0005] A gas furnace gas flow detection device is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The utility model aims to provide a gas flow detection device for a gas furnace to solve the problem proposed in the above-mentioned background technology that the rotation axis position of the pointer is fixed, and the dial can accurately display the size of the gas flow, so that users can better operate the gas furnace. In the prior art, most of the gas flow regulating valves do not have a check function, which may cause gas backflow and pose a safety hazard.

[0007] To achieve the above object, the utility model provides the following technical solution: a gas flow detection device for a gas furnace, comprising a valve body, a mounting pipe is fixedly connected to the top of the valve body, a detection mechanism is arranged inside the valve body, and an adjustment component is arranged inside the mounting pipe;

[0008] Among them, the detection mechanism includes a fixed tube installed inside the valve body, and a blocking block is snap-connected inside one end of the fixed tube, and a connecting rod is fixedly connected to one side of the blocking block, and a sliding groove is symmetrically opened inside the fixed tube, and the two ends of the connecting rod are slidably connected inside the sliding groove, and a first telescopic spring is symmetrically fixedly connected between the two ends of the connecting rod and the sliding groove, and a ladder block is fixedly connected to the top of the connecting rod, and a measuring rod is slidably connected inside the top of the valve body, and a sealing block is fixedly connected to one side of the top of the valve body, and scale lines are opened on one side of the measuring rod, and a pointer is fixedly connected to one side of the sealing block.

[0009] Preferably, the adjustment assembly includes a sliding rod slidably connected to the inside of the mounting tube, and a threaded disk is fixedly connected to the outer wall of the sliding rod, and the outer side of the threaded disk is threadedly connected to the inside of the mounting tube, and a retaining ring is fixedly connected to the bottom end of the mounting tube, and a semicircular block is fixedly connected to the bottom end of the sliding rod, and the bottom end of the semicircular block is fixedly connected to the retaining ring, and the bottom end of the semicircular block is fixedly connected to the retaining ring.

[0010] Preferably, a mounting shell is fixedly connected to one side of the top end of the mounting tube, and an insertion rod is slidably connected to the inside of the mounting shell, and slots are provided on the outside of the sliding rod, and one end of the insertion rod is fixedly connected to the slot by snap-fitting, and a stopper is fixedly connected to the outer wall of the insertion rod, and a second telescopic spring is fixedly connected between the stopper and the inside of the mounting shell, and a push block is rotatably connected to the inside of the top side of the mounting shell.

[0011] Preferably, the outer side of the measuring rod is slidably connected to the inside of the sealing block, and the inside of the sealing block is fixedly connected with a sealing gasket.

[0012] Preferably, a fixed knob is fixedly connected between the push block and the mounting shell.

[0013] Preferably, the second telescopic spring is sleeved on the outer side wall of the insertion rod.

[0014] Preferably, the top of the pointer corresponds to the scale line.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the gas flow detection device of the gas furnace, the specific contents of which are as follows: the blocking block is squeezed by the gas, and the measuring rod moves up. At this time, the staff observes the pointer and the scale line, thereby achieving the effect of accurately detecting the gas flow, and the tension generated by the first telescopic spring causes the blocking block to re-engage with the fixed pipe, thereby effectively preventing the gas from flowing back and improving the safety of gas use, and the effect of quickly blocking the gas flow is achieved by the engagement and fixation between the semicircular block and the retaining ring, and the effect of quickly fixing the limit slide rod is achieved by the engagement and fixation between the plug rod and the slot, and the semicircular block that has been adjusted can be fixed and limited to avoid the phenomenon that the slide rod moves up due to excessive pressure inside the valve body.

[0016] 1. When the staff operates the controller to make the delivery pipe transmit gas, the gas squeezes the block, and a distance is generated between the block and the fixed pipe, thereby driving the connecting rod to slide inside the slide groove. At this time, the first telescopic spring contracts, and the movement of the connecting rod drives the ladder block to squeeze the measuring rod. At this time, the measuring rod moves up. At this time, the staff observes the pointer and the scale line, so as to achieve the effect of accurately detecting the gas flow. The response speed of the gas flow regulating valve is affected by the rotation speed of the slide rod and manual operation, and may not be fast enough. When the staff operates the controller to stop the gas delivery inside the delivery pipe, the tension generated by the first telescopic spring causes the block to re-engage with the fixed pipe, thereby effectively preventing the gas from flowing back and improving the safety of gas use.

[0017] 2. By rotating the slide bar, the threaded disk and the internal threads of the installation tube are driven to rotate. At this time, the threaded disk drives the slide bar to move downward. At this time, the semicircular block and the retaining ring are engaged and fixed, thereby achieving the effect of quickly blocking the flow of gas, which brings convenience to the staff when using it. The block is squeezed by rotating the push block, and the block drives the plug rod and the slot to be engaged and fixed, thereby achieving the effect of quickly fixing the limit slide bar. The semicircular block can be fixed and limited after it is adjusted to avoid the phenomenon that the slide bar moves upward due to excessive pressure inside the valve body, which brings convenience to the staff when using it. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall operation structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the overall enlarged structure of the detection mechanism in the utility model;

[0021] Figure 4 It is a schematic diagram of the enlarged structure of part A in the utility model;

[0022] Figure 5 It is a schematic diagram of the enlarged structure of part B in the utility model;

[0023] Figure 6 It is a schematic diagram of a partially enlarged structure of the detection mechanism in the utility model.

[0024] In the figure: 1. valve body; 101. mounting tube; 2. detection mechanism; 201. fixing tube; 202. blocking block; 203. connecting rod; 204. slide groove; 205. first telescopic spring; 206. ladder block; 207. measuring rod; 208. sealing block; 209. graduation mark; 210. pointer; 211. sealing gasket; 3. adjustment assembly; 301. sliding rod; 302. threaded disk; 303. retaining ring; 304. semicircular block; 305. mounting shell; 306. plug rod; 307. slot; 308. blocking block; 309. second telescopic spring; 310. push block; 311. fixing knob. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: a gas flow detection device for a gas furnace, comprising a valve body 1, a mounting pipe 101 is fixedly connected to the top of the valve body 1, a detection mechanism 2 is arranged inside the valve body 1, and an adjustment component 3 is arranged inside the mounting pipe 101;

[0027] Among them, the detection mechanism 2 includes a fixed tube 201 installed inside the valve body 1, and a blocking block 202 is internally engaged and connected at one end of the fixed tube 201, and a connecting rod 203 is fixedly connected to one side of the blocking block 202, and a sliding groove 204 is symmetrically opened inside the fixed tube 201, and the two ends of the connecting rod 203 are slidably connected inside the sliding groove 204, and a first telescopic spring 205 is symmetrically fixedly connected between the two ends of the connecting rod 203 and the sliding groove 204, and a ladder block 206 is fixedly connected to the top of the connecting rod 203, and a measuring rod 207 is slidably connected to the top of the valve body 1, and a sealing block 208 is fixedly connected to one side of the top of the valve body 1, and one side of the measuring rod 207 is provided with a groove. The scale line 209 is formed on the sealing block 208, and a pointer 210 is fixedly connected to one side of the sealing block 208. The top of the pointer 210 corresponds to the scale line 209. The staff observes the pointer 210 and the scale line 209, so as to achieve the effect of accurately detecting the gas flow rate. The tension generated by the first telescopic spring 205 allows the blocking block 202 to be re-engaged with the fixed tube 201, so as to effectively prevent the gas from flowing back and improve the safety of gas use. The outer side of the measuring rod 207 is slidably connected to the inside of the sealing block 208, and the inside of the sealing block 208 is fixedly connected with a sealing gasket 211. The design of the sealing gasket 211 makes the air tightness between the measuring rod 207 and the sealing block 208 better.

[0028] The adjusting component 3 includes a slide rod 301 slidably connected to the inside of the mounting tube 101, and a threaded disk 302 is fixedly connected to the outer wall of the slide rod 301, and the outer side of the threaded disk 302 is threadedly connected to the inside of the mounting tube 101, and a retaining ring 303 is fixedly connected to the bottom end of the mounting tube 101, and a semicircular block 304 is fixedly connected to the bottom end of the slide rod 301, and the bottom end of the semicircular block 304 is engaged and fixedly connected to the retaining ring 303, thereby achieving the effect of quickly blocking the flow of gas, which brings convenience to the staff when using it, and a mounting shell 305 is fixedly connected to the top side of the mounting tube 101, and a plug rod 306 is slidably connected to the inside of the mounting shell 305, and a slot 307 is opened on the outside of the slide rod 301, and one end of the plug rod 306 is engaged and fixedly connected to the slot 307, and the outer wall of the plug rod 306 A stopper 308 is fixedly connected to the top, and a second telescopic spring 309 is fixedly connected between the stopper 308 and the inside of the mounting shell 305. The second telescopic spring 309 is sleeved on the outer wall of the plug rod 306, and a push block 310 is rotatably connected to the top side of the mounting shell 305. The stopper 308 is squeezed by rotating the push block 310, and the stopper 308 drives the plug rod 306 to engage and fix with the slot 307, thereby achieving the effect of quickly fixing the limit slide bar 301, and can fix and limit the adjusted semicircular block 304 to avoid the phenomenon that the slide bar 301 moves upward due to excessive pressure in the valve body 1, which brings convenience to the staff when using it. A fixing knob 311 is fixedly connected between the push block 310 and the mounting shell 305. Through the design of the fixing knob 311, the adjusted angle of the push block 310 can be fixed.

[0029] Working principle: Before using this gas furnace gas flow detection device, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 6 As shown, when the staff operates the controller to make the delivery pipe transmit gas, the gas squeezes the block 202, and a distance is generated between the block 202 and the fixed pipe 201, thereby driving the connecting rod 203 to slide inside the slide groove 204. At this time, the first telescopic spring 205 contracts, and the movement of the connecting rod 203 drives the ladder block 206 to squeeze the measuring rod 207. At this time, the measuring rod 207 moves up. At this time, the staff observes the pointer 210 and the scale line 209, so as to achieve the effect of accurately detecting the gas flow. The response speed of the gas flow regulating valve is affected by the rotation speed of the slide bar 301 and the manual operation, and may not be fast enough. When the staff operates the controller to stop the gas delivery inside the delivery pipe, the tension generated by the first telescopic spring 205 at this time makes the block 202 re-engage with the fixed pipe 201, thereby effectively preventing the gas from flowing back and improving the safety of gas use. Through the design of the sealing gasket 211, the air tightness between the measuring rod 207 and the sealing block 208 is better.

[0030] The threaded disk 302 and the internal threads of the mounting tube 101 are driven to rotate by rotating the slide bar 301. At this time, the threaded disk 302 drives the slide bar 301 to move downward. At this time, the semicircular block 304 is engaged and fixed with the retaining ring 303, thereby achieving the effect of quickly blocking the flow of gas, which brings convenience to the staff when using it. The stopper 308 is squeezed by rotating the push block 310, and the stopper 308 drives the insertion rod 306 to engage and fix with the slot 307, thereby achieving the effect of quickly fixing the limit slide bar 301, and can fix and limit the adjusted semicircular block 304 to avoid the phenomenon that the slide bar 301 moves upward due to excessive pressure in the valve body 1, which brings convenience to the staff when using it. Through the design of the fixing knob 311, the adjusted angle of the push block 310 can be fixed.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas flow detection device for a gas furnace, comprising a valve body (1), wherein a mounting pipe (101) is fixedly connected to the top of the valve body (1); It is characterized in that Also includes: The valve body (1) is provided with a detection mechanism (2) inside, and the mounting tube (101) is provided with an adjustment component (3) inside; The detection mechanism (2) comprises a fixed tube (201) installed inside the valve body (1), and a blocking block (202) is snap-connected inside one end of the fixed tube (201), and a connecting rod (203) is fixedly connected to one side of the blocking block (202), and a sliding groove (204) is symmetrically provided inside the fixed tube (201), and two ends of the connecting rod (203) are slidably connected inside the sliding groove (204), and a first telescopic spring (205) is symmetrically fixedly connected between the two ends of the connecting rod (203) and the sliding groove (204), and a ladder block (206) is fixedly connected to the top end of the connecting rod (203), and a measuring rod (207) is slidably connected inside the top end of the valve body (1), and a sealing block (208) is fixedly connected to one side of the top end of the valve body (1), and a scale line (209) is provided on one side of the measuring rod (207), and a pointer (210) is fixedly connected to one side of the sealing block (208).

2. A gas flow detection device for a gas furnace according to claim 1, characterized in that: The adjustment assembly (3) comprises a slide rod (301) slidably connected to the inside of the mounting tube (101), and a threaded disk (302) is fixedly connected to the outer wall of the slide rod (301), and the outer side of the threaded disk (302) is threadedly connected to the inside of the mounting tube (101), and a retaining ring (303) is fixedly connected to the bottom end of the mounting tube (101), and a semicircular block (304) is fixedly connected to the bottom end of the slide rod (301), and the bottom end of the semicircular block (304) is fixedly connected to the retaining ring (303) by snap-fitting.

3. A gas flow detection device for a gas furnace according to claim 2, characterized in that: A mounting shell (305) is fixedly connected to one side of the top end of the mounting tube (101), and an insertion rod (306) is slidably connected to the inside of the mounting shell (305), and a slot (307) is provided on the outside of the sliding rod (301), and one end of the insertion rod (306) is fixedly connected to the slot (307) by snap-fitting, and a stopper (308) is fixedly connected to the outer wall of the insertion rod (306), and a second telescopic spring (309) is fixedly connected between the stopper (308) and the inside of the mounting shell (305), and a push block (310) is rotatably connected to the inside of the top end of the mounting shell (305).

4. A gas flow detection device for a gas furnace according to claim 1, characterized in that: The outer side of the measuring rod (207) is slidably connected to the inside of the sealing block (208), and the inside of the sealing block (208) is fixedly connected with a sealing pad (211).

5. A gas flow detection device for a gas furnace according to claim 3, characterized in that: A fixed knob (311) is fixedly connected between the push block (310) and the mounting shell (305).

6. A gas flow detection device for a gas furnace according to claim 3, characterized in that: The second telescopic spring (309) is sleeved on the outer side wall of the insertion rod (306).

7. A gas flow detection device for a gas furnace according to claim 1, characterized in that: The top end of the pointer (210) corresponds to the scale line (209).

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