TWI624625B - Heater dumping valve structure - Google Patents

Abstract

The invention at least includes: a connecting body disposed at an air inlet of the switching valve, a set of a middle body disposed at the other end of the upper body, a set of a lower body disposed at the other end of the middle body, and a set a ball that is placed between the upper body and the middle body, a shaft push rod that moves back and forth through a valve hole protruding from the middle body, and a set of shaft push rods that push the ball to move The rod portion has a valve plate that blocks the hole in the valve, and an elastic unit that pushes the shaft push rod to move; and the upper seat body is provided with an exhaust port that communicates with the inlet port of the switch valve The lower body is provided with an air inlet connected to the gas supply source, and the air outlet, the valve hole and the air inlet are connected to each other.

Description

Heater dumping valve structure

The present invention relates to a technical field of application to an outdoor gas heater; and more particularly to a heater dumping shut-off valve structure capable of automatically blocking the supply of gas gas in a tilted state.

According to the conventional heater structure, referring to FIG. 1, it mainly includes a burner 10 for discharging gas from the flame hole 101, and an on-off valve 11 connected to the mixing pipe 102 of the burner 10. a connecting pipe 12 connected to the intake pipe 112 of the switching valve 11, a pressure reducing valve 13 connected to the other end of the connecting pipe 12, and a set of gas supply sources provided at the other end of the pressure reducing valve 13 15 (ie, gas barrel), so that the gas flows through the pressure reducing valve 13, the connecting pipe 12, the switching valve 11 and then flows to the burner head 10, thereby achieving the effect of ignition and heating; although the above creation can achieve the original The purpose of the creation is highly appreciated by the industry and the general operators. However, in view of the ever-changing research and development of technology in the industry, the applicant has made even more efforts to study and improve it to make it perfect and practical; Recently, the creators have responded with numerous updates to the experimental tests and the actual use of the consumers, and found that the following problems still need to be further improved: when the heater is dumped by external force or slamming, the gas Barrel or gas supply The gas source 15 will continue from the relief valve 13, connection tube 12, valve 11 and then flows into the switch Up to the burner 10, so that the poured burner 10 retains the same supply gas for continuous combustion, so that the fire at the dumping site easily ignites the flammable material on the circumferential side of the dumping, and the accident that causes the fire is It is a big problem.

In view of the above, the present invention is directed to the absence of the above-mentioned prior art, and proposes a heater dumping shut-off valve configuration to effectively overcome the above problems.

The main content of the structure of the heater tilting and closing valve of the present invention is to provide a relative rolling by the position of the ball which has been disposed between the upper body and the middle body, and the angle of inclination of the center body is changed, and Forming the rolling ball no longer presses the shaft push rod, and the shaft push rod is moved upward by the rebounding force of the elastic unit until the valve valve plate assembled at the shaft push rod can be tightly blocked At the valve hole of the middle seat, the automatic flameout protection effect of tilting and blocking the inflow of gas is prevented, and the occurrence of accidental fire is considered as a progressive claim.

For the purpose of the above creation, the main technical means for the structure of the heater to pour the gas shutoff valve of the present invention includes at least: an upper body which is connected at the inlet of the opening and closing valve, and a set of the upper body and the other a middle seat at the end, a set of lower seats disposed at the other end of the middle seat, a ball accommodated between the upper body and the middle body, and a valve extending through the middle body a shaft pusher that moves back and forth at the hole and pushes the ball to move, a set of valve plates disposed at the shaft push rod and having a shield blockage at the valve hole, and an elastic force for pushing the shaft push rod to move And the upper seat is provided with an exhaust port connected to the air inlet of the switch valve, the lower seat is provided with an air inlet connected to the gas supply source, and the exhaust port and the valve hole are And the air inlets are in communication with each other; wherein the threaded portions of the upper and lower seats are respectively screwed to the two ends of the middle body, or the upper body is tightly disposed at one end of the middle body and the The other end of the middle seat is screwed to the lower seat At the threaded portion, or through the upper limit hole of the upper seat and the lower limit hole of the lower seat, respectively, are disposed on the upper seat and the lower screw hole, and the upper and lower seats and the A leakage stop unit is interposed between the contact faces of the middle seat; and a partition of the middle seat body is provided with a valve hole for the shaft push rod to penetrate and move back and forth (that is, the valve hole is located at a center thereof) Forming a guiding hole for the shaft push rod to penetrate and move back and forth, a rib connecting the inner wall surface of the valve hole to the outer wall surface of the guiding hole, and a gap between the two ribs and connecting the upper and lower ends of the partition for gas circulation a channel or a concave tapered or concave arc-shaped support for the ball placement, or a valve hole of the partition of the central body is further provided with a concave tapered or concave arc-shaped support member (ie, the channel) The supporting member includes a guiding hole for the shaft push rod to penetrate and move back and forth, and a passage for the gas to flow, and the valve hole of the partition portion is further provided with a fixing member (that is, the fixing member includes a screw) An external thread that is fitted to the internal thread of the middle body, and is provided in the group a shaft guide hole for the shaft push rod to penetrate and move back and forth; and the shaft push rod is provided with a limiting portion for the valve plate assembly, and a push plate is arranged on the outer side of the valve plate as an elastic unit One end pushes; thus, when the heater is tilted, the ball is rolled to one side away from the moving path of the shaft push rod, and is pushed by the rebounding force of the elastic unit to force the shaft push rod upward Move until the valve plate that has been located at the shaft push rod is completely shielded from the valve hole, and achieves the automatic flameout protection effect of tilting off and closing the supply gas.

2‧‧‧Switching valve

20‧‧‧air inlet

25‧‧‧ burner

26‧‧‧Sensor solenoid valve group

3‧‧‧The upper body

30‧‧‧Exhaust port

31‧‧‧Threading Department

32‧‧‧ upper limit hole

35‧‧‧ accommodating space

4‧‧‧中座

40‧‧‧Departure

401‧‧‧ valve hole

4010‧‧‧ Guide hole

4011‧‧‧ Ribs

4012‧‧‧ channel

41‧‧‧ external thread

42‧‧‧ internal thread

43‧‧‧Support

441‧‧‧Upper hole

442‧‧‧Under the screw hole

45‧‧‧Receiving area

49‧‧‧ bolt

5‧‧‧ Lower body

50‧‧‧ inlet

51‧‧‧Threading Department

52‧‧‧lower hole

6‧‧‧ sphere

7‧‧‧Axis putter

70‧‧‧Limited

75‧‧‧Valve board

76‧‧‧ push board

8‧‧‧elastic unit

90‧‧‧Support components

901‧‧‧ Guide hole

902‧‧‧ channel

95‧‧‧Fixed components

950‧‧‧ external thread

951‧‧‧Axis guide hole

98‧‧‧ leak-proof unit

99‧‧‧ gas supply source

Fig. 1 is a view showing a state of use of a conventional technique; Fig. 2 is a partial sectional view showing a state of application of the present invention.

Fig. 3 is a partially enlarged cross-sectional view of Fig. 2;

Fig. 4 is a partially enlarged cross-sectional view showing the third figure when it is poured.

Figure 5 is a partially enlarged cross-sectional view showing still another embodiment of the present invention.

Fig. 6 is a partially enlarged cross-sectional view showing the fifth figure when it is poured.

Figure 7 is a partially enlarged cross-sectional view showing still another embodiment of the present invention.

Figure 8 is a partially enlarged cross-sectional view showing another embodiment of the present invention.

The present invention relates to a heater dumping gas shutoff valve structure, as shown in FIGS. 2 to 4, which includes at least: a connecting body 3 disposed at the air inlet 20 of the switching valve 2, a set of the middle seat body 4 disposed at the other end of the upper seat body 3, a set of the lower seat body 5 disposed at the other end of the middle seat body 4, and a ball body accommodated between the upper seat body 3 and the middle seat body 4 6. A shaft push rod 7 that moves back and forth through the valve hole 401 protruding from the middle seat body 4 and pushes the ball 6 to move. A group is disposed at the shaft push rod 7 and has a shielding block. a valve plate 75 at the valve hole 401, and an elastic unit 8 having a pushing force to move the shaft push rod 7; wherein: the upper seat body 3 is provided with exhaust gas at the intake port 20 of the switching valve 2 The mouth 30, and a set of threaded portions 31 disposed at the outer thread 41 of the upper end of the middle seat 4, and an accommodating space 35 is formed between the upper seat 3 and the middle seat 4, and the upper seat 3 is formed. A leakage stopping unit 98 is interposed between the contact surface of the switching valve 2 and the middle seat 4, and the receiving space 35 and the valve opening 401 of the exhaust port 30 and the middle seat 4, respectively. Interconnected The ball body 6 is movable in the accommodating space 35. The middle body 4 is provided with a partition 40 for distinguishing two spaces, a valve hole 401 disposed at the partition 40, and an upper end thereof. An external thread 41 screwed to the threaded portion 31 of the upper seat 3 is provided, and a threaded portion screwed to the lower seat 5 is provided at a lower end thereof. The internal thread 42 at 51, so that the threaded portions 31, 51 of the upper and lower base bodies 3, 5 are respectively screwed to the two ends of the middle seat body 4, and the valve hole 401 and the upper seat body 3 are respectively The exhaust port 30 and the air inlet 50 of the lower base 5 communicate with each other, and a leakage preventing unit 98 is interposed between the contact faces of the upper and lower base bodies 3, 5 and the middle seat 4; The valve hole 401 is used for the shaft push rod 7 to penetrate and move back and forth, and a concave or concave arc-shaped support member 90 is disposed on the valve hole 401 (ie, the support member) The 90 series includes a guide hole 901 for the shaft push rod 7 to penetrate and move back and forth, and a passage 902 for gas circulation, and a valve member 401 of the partition portion 40 is further provided with a fixing member 95 (ie, the fixing The member 95 includes an external thread 950 screwed to the internal thread 42 of the middle seat 4, and a shaft guide hole 951 provided for the shaft push rod 7 to penetrate and move back and forth; the lower seat body 5, which is provided with an air inlet 50 connected to the gas supply source 99, and a set of threaded portions 51 provided at the internal thread 42 of the middle seat 4, and between the lower base 5 and the middle seat 4 Forming a accommodating area 45, and arranging a leakage preventing unit 98 at a contact surface between the lower body 5 and the middle body 4 and the gas supply source 99, respectively, and allowing the accommodating area 45 to be respectively associated with The air inlet 50 and the valve hole 401 of the middle body 4 are in communication with each other such that the shaft push rod 7 and the valve plate 75 thereon can be placed in the accommodating area 45 to move back and forth; the ball 6, the system It is disposed above the supporting member 90 disposed at the accommodating space 35, and can press the shaft push rod 7 protruding from the valve hole 401 to utilize the supporting member 90 to drive the ball 6 when tilted. Rolling to one side, while the ball 6 does not block the path of the shaft pusher 7 moving upward, or does not become the resistance to press the shaft push rod 7 upward; The shaft push rod 7 is moved from the accommodating area 45 through the valve hole 401 to the accommodating space 35. The shaft push rod 7 is provided with a limiting portion 70 for the valve plate 75 to be assembled. The limiting portion 70 is configured to move the valve plate 75 along with the movement of the limiting portion 70. Further, the valve plate 75 serves to block or prevent gas in the accommodating portion 45 from flowing into the valve hole. For use in 401, a push plate 76 is disposed under the valve plate 75 as a basis for the elastic unit 8 to be pushed against the push plate 76 to drive the valve plate 75 and the shaft push rod 7 upward; One end of the elastic unit 8 abuts against the valve plate 75 or the push plate 76 or the limiting portion 70, and the other end abuts against the lower base 5 or abuts against the fixing member 95 that has been assembled to the lower base 5. Wherein, the elastic unit 8 is preferably a tapered spring, a spring piece or the like; when the heater is used for standing, since the ball 6 falls into the concave tapered or concave arc-shaped supporting member 90, so that The ball 6 is located directly above the shaft push rod 7. Further, the valve plate 75 and the push plate 76 are assembled at the shaft push rod 7 and are received by the elastic unit 8 Top, of course, because the weight of the ball 6 is greater than the repulsive force of the elastic unit 8, the ball 6 will block the path where the shaft pusher 7 moves upward (ie, the ball 6 will press the shaft push rod 7). Moving downward), and forcing the valve plate 75 that has been assembled at the shaft push rod 7 to be away from the valve hole 401 of the middle seat body 4, so that the air inlet port 50 has flowed into the air inlet port 50 from the lower seat body 5 Gas in the region 45 can flow from the valve hole 401 into the accommodating space 35, and then flows into the air inlet 20 of the switching valve 2 via the exhaust port 30 to provide continuous air supply (for example, the third Figure), in order to achieve the effect of continuous combustion and heating; when the heater is tilted by an external force, the ball 6 is guided by the support member 90 to roll to one side and away from the axis of the push rod 7 upward movement path At this time, since there is no resistance above the shaft push rod 7, and the shaft push rod 7 is only under the elastic unit 8 The rebound force pushes, so that the shaft push rod 7 can be forced to move upward until the valve plate 75 already located at the shaft push rod 7 is completely shielded from the valve hole 401 (as shown in Fig. 4), Therefore, the gas that has entered the accommodating region 45 cannot continuously flow from the valve hole 401 to the accommodating space 35 (including the gas in the switching valve 2 and the burner 25), and the furnace of the burner 25 is caused. The fire is extinguished to achieve the automatic flameout protection effect of tilting off and closing the supply gas. At the same time, when the furnace 25 fire is extinguished, the door panel of the temperature sensing solenoid valve group 26 (not shown) is no longer It is in an excited state and can be blocked at the air inlet 20 of the on-off valve 2. Even if the heater is righted up, the burner 25 cannot be automatically burned again, and the safe operation of the on-off ignition of the on-off valve 2 must be re-rotated. .

Please refer to FIG. 5 and FIG. 6 , which are still another embodiment of the present invention. The main change is that the partition 40 of the middle seat 4 is provided with a valve for the shaft push rod 7 to penetrate and move back and forth. a hole 401, and a concave tapered or concave arc-shaped supporting portion 43 for the spherical body 6; and the valve hole 401 is formed by a central portion thereof for guiding the shaft push rod 7 to penetrate and move back and forth a hole 4010, a rib 4011 connecting the inner wall surface of the valve hole 401 to the outer wall surface of the guiding hole 4010, and a passage 4012 which is located between the two ribs 4011 and communicates with the upper and lower ends of the partition 40 for gas circulation; Valve 2, upper body 3, outer seat 3 external thread 41 and internal thread 42, lower seat 5, ball 6, shaft push rod 7, valve plate 75, push plate 76, elastic unit 8, stop leaking unit 98, etc. The structure has been described in detail above, so it will not be described here.

Please refer to FIG. 7 , which is a further embodiment of the present invention. The main change is that the threaded portions 31 and 51 of the upper and lower base bodies 3 and 5 are respectively changed to the upper limit hole 32 and the lower limit hole. 52, and the upper limit hole 32 and the lower limit hole 52 can be respectively aligned in the middle The screw hole 441 and the lower screw hole 442 of the base body 4 are assembled on the middle seat body 4 through the upper end hole 32 of the upper seat body 3 and the lower limit hole 52 of the lower seat body 5 by bolts 49, respectively. And the lower screw holes 441, 442, so that the upper and lower base bodies 3, 5 can be closely assembled at the two ends of the middle seat body 4, and between the upper and lower seat bodies 3, 5 and the middle seat body 4 The leakage contact unit 98 is interposed at the contact surface; the above-mentioned switch valve 2, upper seat body 3, outer seat body 3 external thread 41 and internal thread 42, lower seat body 5, ball body 6, shaft push rod 7, valve The structure of the plate 75, the push plate 76, the elastic unit 8, the leak stop unit 98, and the like have been described in detail above, and therefore will not be described herein.

Please refer to FIG. 8 , which is another embodiment of the present invention. The main change is that the upper body 3 is assembled at an upper end of the middle body 4 in an urgent manner, and the middle body 4 is The lower end is screwed to the threaded portion 51 of the lower base 5, so that the upper and lower bases 3, 5 can be closely assembled at the two ends of the middle seat 4, and the upper and lower seats 3, 5, a leakage stop unit 98 is interposed between the contact surface of the middle seat 4; the above-mentioned switch valve 2, upper seat 3, middle seat 3 external thread 41 and internal thread 42, lower seat 5, sphere 6. The structure of the shaft push rod 7, the valve plate 75, the push plate 76, the elastic unit 8, the leak stop unit 98, etc., has been described in detail above, and therefore will not be described herein.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; therefore, the features and spirits described in the scope of the present application are equally varied or modified. Within the scope of the patent application of the present invention.

Claims (10)

A heater dumping shut-off valve structure includes at least: an upper seat body connected at an air inlet of the switch valve, a set of a middle seat body disposed at the other end of the upper seat body, and a set of the middle seat body a lower body at the other end of the body, a ball body accommodated between the upper seat body and the middle seat body, a shaft push rod that moves back and forth through a valve hole protruding from the middle seat body and pushes the ball to move a set of valve plates disposed at the shaft push rod and having a shield blockage at the valve hole, and an elastic unit having a pusher for pushing the shaft push rod; and the upper seat body is connected to the switch valve An exhaust port at the air inlet, the lower seat is provided with an air inlet connected to the gas supply source, and the air outlet, the valve hole and the air inlet are connected to each other; when the heater is standing, The ball is forced to move downwardly at the shaft push rod, and the valve plate that is already at the shaft push rod is forced away from the valve hole of the middle seat body, and gas gas is formed to flow from the valve hole to the valve hole. The air inlet of the on-off valve is continuously supplied with air; when the heater is tilted, The ball rolls to one side and moves away from the moving path of the shaft push rod, and is pushed by the rebounding force of the elastic unit to force the shaft push rod to move upward until the valve plate at the shaft push rod is completely shielded Breaking at the valve hole, and achieving the automatic flameout protection effect of tilting off and closing the supply gas. The heater tilting shut-off valve structure according to the first aspect of the patent application, wherein the upper seat body is provided with a threaded portion directly screwed to the middle seat body, and the lower seat body is provided with a direct assembly in the middle seat. a threaded portion of the body such that the upper seat body and the lower seat body are respectively screwed to the two ends of the middle seat body, and the contact surface between the upper and lower seat bodies and the middle seat body is interposed Stop leak unit. The heater tilting shut-off valve structure according to the first aspect of the patent application, wherein the upper seat body is provided with an upper limit hole aligned with a screw hole above the middle seat body, and the lower seat body is provided with the middle seat The lower limit hole at the screw hole below the body is tightly screwed to the upper and lower screw holes by bolts respectively passing through the upper and lower limit holes, so that the upper and lower seats can be closely arranged in the middle seat respectively. The two ends of the body have a leakage stop unit interposed between the contact faces of the upper and lower seats and the middle seat. The heater dumping shut-off valve structure according to the first aspect of the patent application, wherein the upper seat system is tightly disposed at one end of the middle seat body and the other end of the middle seat body is screwed to the threaded portion of the lower seat body The upper and lower seats are respectively tightly disposed at the two ends of the middle seat body, and a leakage stop unit is interposed between the upper and lower seat bodies and the contact surface between the middle seat body. The heater tilting shut-off valve structure according to the first, second, third or fourth aspect of the patent application, wherein the middle seat body is provided with a partition portion, the partition portion is provided with a valve for the shaft push rod to penetrate and move back and forth hole. The heater tilting shut-off valve structure according to claim 5, wherein the partition portion of the middle seat body is further provided with a concave tapered or concave arc-shaped support member, and the support member includes a support member. a guiding hole for the shaft push rod to move back and forth, and a passage for the gas to flow; further, a fixing member is further disposed under the partition portion of the middle seat body, and the fixing member is provided with a shaft push rod for penetration The shaft guide hole that moves back and forth. The heater tilting shut-off valve structure according to the first, second, third or fourth aspect of the patent application, wherein the middle seat valve body is provided with a partition portion, the partition portion is provided with a shaft push rod for penetration and movement a valve hole and a concave tapered or concave arc-shaped support for the ball to be placed. The heater dumping gas shutoff valve structure according to the seventh aspect of the patent application, wherein the valve hole is formed by a guiding hole at the center thereof for the shaft push rod to penetrate and move back and forth, connecting the inner wall surface of the valve hole to The ribs between the outer wall surfaces of the guiding holes and the passages between the two ribs and the upper and lower ends of the partitioning portion for gas circulation. The heater tilting shut-off valve structure according to the first, second, third or fourth aspect of the patent application, wherein the shaft push rod is provided with a limiting portion for the valve plate assembly; and the valve plate is sleeved outside There is a push plate for pushing the end of the elastic unit. The heater dumping shut-off valve structure according to the first, second, third or fourth aspect of the patent application, wherein one end of the elastic unit abuts against the valve plate or the push plate or the limiting portion, and the other ends thereof Adjacent to the lower body or against the fixing element that has been assembled in the lower body.