Valve structure of large-diameter coil fire extinguisher

Abstract

The utility model discloses a valve structure of a large-diameter coil type fire extinguisher, and aims to provide the valve structure of the large-diameter coil type fire extinguisher, which can improve the discharge efficiency of the fire extinguisher and ensure the normal use of the fire extinguisher. Comprising a valve body, a mounting hole is formed in the valve body, a valve rod is elastically mounted in the mounting hole, a pressing handle is hinged to the top of the valve body, the pressing handle is connected with the valve rod, a spraying inner hole is formed in the lower portion of the valve body, a spraying outer hole is formed in the upper portion of the valve body, and the spraying outer hole is connected with the top of the mounting hole. The spraying inner hole is formed in the side of the mounting hole and communicates with the side face of the mounting hole, and a spiral ring connected with a fire extinguisher bottle body is connected to the lower portion of the valve body. The fire extinguisher has the beneficial effects that the discharge efficiency of the fire extinguisher is improved, and the use effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishers, in particular to a valve structure of a large-caliber spiral type fire extinguisher. Background Art

[0002] A fire extinguisher is a portable fire-fighting tool. Chemicals are placed inside the fire extinguisher to put out fires. Fire extinguishers are one of the common fire prevention facilities and are stored in public places or places where fires may occur. Different types of fire extinguishers are filled with different ingredients and are designed for different causes of fire. Care must be taken when using them to avoid adverse effects and danger.

[0003] The valves of existing fire extinguishers are mostly installed by connecting the external threads on the side wall of the valve body with the internal threads in the mouth of the fire extinguisher cylinder through threaded connection. This structural design is mostly used for the installation of small-diameter valve bodies. Due to the limitation of the structural size, the discharge efficiency of the fire extinguisher is low. Utility Model Content

[0004] The utility model aims to overcome the disadvantage of low discharge efficiency of fire extinguishers in the prior art and provides a valve structure of a large-caliber spiral coil type fire extinguisher which can improve the discharge efficiency of the fire extinguisher and ensure the normal use of the fire extinguisher.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a valve structure of a large-caliber spiral coil fire extinguisher, comprising a valve body, a mounting hole is arranged in the valve body, a valve stem is elastically installed in the mounting hole, a pressure handle is hinged on the top of the valve body, the pressure handle is connected to the valve stem, an inner spray hole is arranged below the valve body, an outer spray hole is arranged above the valve body, the outer spray hole is connected to the top of the mounting hole, the inner spray hole is placed beside the mounting hole and is connected to the side of the mounting hole, and a spiral coil connected to the fire extinguisher bottle body is connected below the valve body.

[0006] The valve structure of the fire extinguisher is provided with a valve body, and a mounting hole is provided inside the valve body, and the mounting hole is used to install the valve stem. A pressure handle is hinged on the top of the valve body, and the pressure handle is connected to the top of the valve stem. The downward pressure of the pressure handle can make the valve body move in the mounting hole, and the valve stem can open and close the mounting hole by moving. The valve body is provided with an inner ejection hole and an outer ejection hole, wherein the inner ejection hole is placed beside the mounting hole and communicated with the inner ejection hole, and the outer ejection hole is communicated with the upper side wall of the mounting hole. When the valve stem moves downward, the dry powder in the fire extinguisher bottle enters from the inner ejection hole and is ejected from the outer ejection hole through the mounting hole. This structural design allows the dry powder to enter from the side inner ejection hole when ejecting, directly reaching the opening and closing contact point between the top of the mounting hole and the valve stem, rather than entering from the lower end of the mounting hole, thereby avoiding being blocked by the lower end of the valve stem when the dry powder enters from the lower end of the mounting hole, thereby improving the discharge efficiency of the fire extinguisher and improving the use effect. A screw ring is connected below the valve body, and the screw ring is used to connect the valve body to the fire extinguisher bottle body. The setting of the screw ring can ensure that the lower end surface of the valve body has a sufficiently large area to arrange the spray inner hole and the mounting hole for installing the valve stem, thereby ensuring the connection effect.

[0007] Preferably, a clamping platform is provided below the valve body, the spiral coil is clamped with the clamping platform, a bottle mouth sealing ring is connected to the bottom of the clamping platform, and the bottle mouth sealing ring is placed inside the spiral coil. The clamping platform provided below the valve body is clamped with the spiral coil, so that when the spiral coil is connected to the bottle mouth of the fire extinguisher bottle, the valve body is connected to the fire extinguisher through the spiral coil, thereby realizing the installation of the valve body.

[0008] Preferably, the ejection inner hole is connected to a straw seat, which faces downward. The straw seat is used to install a straw, and the downward design ensures that the installed straw can suck the dry powder at the lower end of the fire extinguisher bottle into the ejection inner hole, thereby ensuring the discharge efficiency of the fire extinguisher and improving the use effect of the fire extinguisher.

[0009] Preferably, the valve body is provided with a hinge hole, the front end of the pressure handle is connected to the hinge hole through a rivet, the top of the valve body is connected to a lifting handle, the lifting handle is connected to a rubber chain, the end of the rubber chain is connected to a safety pin, the pressure handle is provided with a safety hole, the safety hole is placed on the upper side of the lifting handle, and the safety pin is inserted into the safety hole. A rivet is riveted into the hinge hole provided on the valve body, the pressure handle and the valve body are connected by the rivet, and the lifting handle is installed on the valve body to cooperate with the pressure handle to realize the use of the fire extinguisher, the lifting handle is connected to a rubber chain, and the rubber chain is connected to the safety pin, and the safety pin is inserted into the safety hole provided on the pressure handle to realize the safety operation of the pressure handle, avoid misoperation of the fire extinguisher, and ensure normal use effect.

[0010] Preferably, the lower end of the mounting hole is threadedly connected to a standpipe seat, a clearance hole is provided in the middle of the standpipe seat, the valve stem is sleeved with the clearance hole, a spring is sleeved on the valve stem, the upper end of the spring is connected to the top of the valve stem, and the lower end of the spring is connected to the top surface of the standpipe seat. A standpipe seat is connected below the mounting hole, the standpipe seat is connected in the form of a threaded connection, and a clearance hole is provided in the middle of the standpipe seat, the clearance hole is used to guide the movement of the valve stem, and at the same time, a spring is sleeved on the valve stem, and the provided spring ensures that the valve stem can block the mounting hole to achieve the closure of the mounting hole of the fire extinguisher, thereby ensuring the normal use of the fire extinguisher function.

[0011] Preferably, a stem sealing groove is provided at the lower end of the valve stem, a stem sealing ring is sleeved in the stem sealing groove, and the stem sealing ring is placed in the riser seat. A stem sealing groove is provided at the lower end of the valve stem, a stem sealing ring is sleeved in the stem sealing groove, and the stem sealing ring can ensure the sealing effect between the valve stem and the riser seat. This structural design can ensure the sealing between the valve stem and the riser seat.

[0012] Preferably, an injection valve is connected to the outside of the valve body, and a column screw is connected to the outside of the injection valve. The injection valve arranged on the outside of the valve body is used to inject driving gas into the bottle of the box fire extinguisher, and the column screw connected to the outside of the injection valve can block the injection valve to ensure the sealing effect of the injection valve and ensure the normal use of the fire extinguisher.

[0013] Preferably, the valve body is equipped with a display joint, the display joint is provided with a display cavity, a release device assembly is installed in the display cavity, a display sheet is installed on the top of the display cavity, and the release device assembly is connected to the display sheet. A display joint is installed on the valve body, the display joint is provided with a display cavity, and the display joint is used to display the internal pressure of the fire extinguisher, wherein a release spring and a release cap are provided in the release device assembly installed inside the display cavity, the lower end of the release spring is connected with a seal, and at the same time, the seal is clamped on the bottom of the display cavity, the top of the release spring is connected with the release cap, and the release cap is threadedly connected with the display cavity. When the internal pressure of the fire extinguisher bottle is too high, the release cap can be selected to adjust the internal pressure of the fire extinguisher bottle to ensure that the pressure inside the fire extinguisher bottle is at a normal value and the fire extinguisher functions normally.

[0014] The beneficial effects of the utility model are as follows: an inner spray hole is arranged on the side of the mounting hole, and this structural design allows the dry powder to enter from the inner spray hole on the side when spraying, and directly reach the opening and closing contact point between the top of the mounting hole and the valve stem, avoiding the dry powder being blocked by the lower end of the valve stem when entering from the lower end of the mounting hole, thereby improving the discharge efficiency of the fire extinguisher and improving the use effect; a valve stem sealing ring is sleeved inside the valve stem sealing groove, and the valve stem sealing ring can ensure the sealing effect between the valve stem and the riser seat, and this structural design can ensure the sealing between the valve stem and the riser seat; when the internal pressure of the fire extinguisher bottle body is too large, the release cap can be selected to adjust the internal pressure of the fire extinguisher bottle body, to ensure that the pressure inside the fire extinguisher bottle body is at a normal value, and to ensure the normal function of the fire extinguisher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the utility model;

[0016] Figure 2 It is a side view of the utility model;

[0017] Figure 3 It is a cross-sectional view taken along line AA of the present invention.

[0018] In the accompanying drawings,

[0019] 1. Valve body, 2. Valve stem, 3. Press handle, 4. Screw ring, 5. Lifting handle, 6. Standpipe seat, 7. Display joint, 10. Mounting hole, 11. Inner spray hole, 12. Outer spray hole, 13. Clamping platform, 14. Bottle mouth sealing ring, 15. Straw seat, 16. Hinge hole, 17. Air injection valve, 18. Column thread, 20. Spring, 21. Valve stem sealing groove, 22. Valve stem sealing ring, 30. Insurance hole, 50. Rubber chain, 51. Insurance pin, 60. Give way hole, 70. Display cavity, 71. Release device assembly, 72. Display sheet. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0023] Embodiment 1, as Figure 1-2 As shown, a valve structure of a large-caliber spiral fire extinguisher comprises a valve body 1, wherein a mounting hole 10 is arranged in the valve body 1, a valve stem 2 is elastically arranged in the mounting hole 10, a pressure handle 3 is hinged on the top of the valve body 1, the pressure handle 3 is connected to the valve stem 2, an inner ejection hole 11 is arranged below the valve body 1, an outer ejection hole 12 is arranged above the valve body 1, the outer ejection hole 12 is connected to the top of the mounting hole 10, the inner ejection hole 11 is placed beside the mounting hole 10 and is connected to the side of the mounting hole 10, and a spiral ring 4 connected to the fire extinguisher bottle is connected below the valve body 1.

[0024] A clamping platform 13 is provided below the valve body 1 , and the screw ring 4 is clamped with the clamping platform 13 . A bottle mouth sealing ring 14 is connected to the bottom of the clamping platform 13 , and the bottle mouth sealing ring 14 is placed inside the screw ring 4 .

[0025] The inner hole 11 is connected to a straw holder 15, which faces downward.

[0026] The valve body 1 is provided with a hinge hole 16, and the front end of the pressing handle 3 is connected to the hinge hole 16 by a rivet. The top of the valve body 1 is connected with a lifting handle 5, and the lifting handle 5 is connected with a rubber chain 50. The end of the rubber chain 50 is connected with a safety pin 51. The pressing handle 3 is provided with a safety hole 30, and the safety hole 30 is placed on the upper side of the lifting handle 5, and the safety pin 51 is inserted into the safety hole 30.

[0027] The lower end of the mounting hole 10 is threadedly connected to a riser seat 6, a clearance hole 60 is provided in the middle of the riser seat 6, the valve stem 2 is sleeved with the clearance hole 60, the valve stem 2 is sleeved with a spring 20, the upper end of the spring 20 is connected to the top of the valve stem 2, and the lower end of the spring 20 is connected to the top surface of the riser seat 6.

[0028] A valve stem sealing groove 21 is provided at the lower end of the valve stem 2 , a valve stem sealing ring 22 is sleeved in the valve stem sealing groove 21 , and the valve stem sealing ring 22 is placed in the riser seat 6 .

[0029] An air injection valve 17 is connected to the outside of the valve body 1 , and a column screw 18 is externally connected to the air injection valve 17 .

[0030] The valve body 1 is installed with a display joint 7, and the display joint 7 is provided with a display cavity 70. A release device assembly 71 is installed in the display cavity 70. A display sheet 72 is installed on the top of the display cavity 70. The release device assembly 71 is connected to the display sheet 72.

[0031] The working principle of the utility model is that a mounting hole 10 is provided inside the valve body, and the mounting hole 10 is used to install the valve stem. The installed valve stem can block the mounting hole 10 to ensure that the mounting hole 10 is in a closed state. A hinge hole 16 is provided on the top of the valve body, and a rivet is riveted in the hinge hole 16, and the pressure handle 3 is connected to the hinge hole 16 through the rivet, and the middle part of the pressure handle 3 is connected to the valve stem. A lifting handle is also connected to the top of the valve body, and the lifting handle is placed below the pressure handle 3. The cooperation of the two can realize the downward pressing of the pressure handle 3 and the downward pressing of the valve stem. Among them, an inner spray hole 11 and an outer spray hole 12 are provided on the valve body, wherein the inner spray hole 11 is placed beside the mounting hole 10 and communicated with the inner spray hole 11, and the outer spray hole 12 is communicated with the upper side wall of the mounting hole 10. When the valve stem moves downward, the dry powder in the fire extinguisher bottle enters from the inner spray hole 11, passes through the mounting hole 10 and is sprayed out from the outer spray hole 12. This structural design allows the dry powder to enter from the side inner spray hole 11 when spraying, directly reaching the opening and closing contact point between the top of the mounting hole 10 and the valve stem, rather than entering from the lower end of the mounting hole 10, thereby avoiding being blocked by the lower end of the valve stem when the dry powder enters from the lower end of the mounting hole 10, thereby improving the discharge efficiency of the fire extinguisher and improving the use effect.

[0032] Among them, a clamping platform 13 is arranged below the valve body, and the clamping platform 13 is flange-shaped. A screw ring 4 is sleeved on the lower end of the valve body. The screw ring 4 is clamped with the clamping platform 13, so that when the screw ring 4 is connected to the bottle mouth of the fire extinguisher bottle body, the valve body is connected to the fire extinguisher through the screw ring 4, thereby realizing the installation of the valve body and the fire extinguisher bottle body.

[0033] Among them, a straw is installed on the straw seat 15, and the lower end of the straw is placed near the bottom of the fire extinguisher bottle body. The downward design can ensure that the installed straw can suck the dry powder at the lower end of the fire extinguisher bottle body into the spray inner hole 11, thereby ensuring the discharge efficiency of the fire extinguisher and improving the use effect of the fire extinguisher.

[0034] Among them, a rubber chain 50 is connected to the handle of the valve body, and the rubber chain 50 is connected to a safety pin 51. The safety pin 51 is inserted into the safety hole 30 set on the pressure handle 3 to realize the safety operation of the pressure handle 3, avoid misoperation of the fire extinguisher, and ensure normal use effect.

[0035] The lower inner wall of the mounting hole 10 provided on the valve body is provided with an internal thread, and the upper end of the riser seat 6 is provided with an external thread, and the riser seat 6 is inserted into the mounting hole 10 to achieve threaded connection. A clearance hole 60 is provided in the middle of the riser seat 6, and the clearance hole 60 is used for guiding the movement of the valve stem. At the same time, a spring 20 is sleeved on the valve stem, and the provided spring 20 ensures that the valve stem can block the mounting hole 10 to achieve the closure of the mounting hole 10 of the fire extinguisher, thereby ensuring the normal use of the fire extinguisher function.

[0036] Among them, a valve stem sealing ring 22 is sleeved inside the valve stem sealing groove 21 set at the lower end of the valve stem, and the valve stem sealing ring 22 can ensure the sealing effect between the valve stem and the riser seat 6. This structural design can ensure the sealing between the valve stem and the riser seat 6.

[0037] Among them, the gas injection valve 17 arranged on the outside of the valve body is used to inject driving gas into the bottle of the box fire extinguisher. The column wire 18 connected to the gas injection valve 17 can seal the gas injection valve 17 to ensure the sealing effect of the gas injection valve 17 and ensure the normal use of the fire extinguisher.

[0038] Among them, a display joint 7 is installed on the valve body, and a display cavity 70 is arranged on the display joint 7. The display joint 7 is used to display the internal pressure of the fire extinguisher. Among them, a release spring 20 and a release cap are arranged in a release device assembly 71 installed inside the display cavity 70. The lower end of the release spring 20 is connected with a seal. At the same time, the seal is clamped on the bottom of the display cavity 70, and the top of the release spring 20 is connected to the release cap. The release cap is threadedly connected to the display cavity 70. When the internal pressure of the fire extinguisher bottle is too high, the release cap can be selected to adjust the internal pressure of the fire extinguisher bottle to ensure that the pressure inside the fire extinguisher bottle is at a normal value and the fire extinguisher functions normally.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A valve structure for a large-caliber spiral fire extinguisher, characterized in that: The invention comprises a valve body (1), wherein a mounting hole (10) is arranged in the valve body (1), a valve stem (2) is elastically mounted in the mounting hole (10), a pressure handle (3) is hingedly connected to the top of the valve body (1), the pressure handle (3) is connected to the valve stem (2), an inner spray hole (11) is arranged below the valve body (1), an outer spray hole (12) is arranged above the valve body (1), the outer spray hole (12) is connected to the top of the mounting hole (10), the inner spray hole (11) is arranged beside the mounting hole (10) and is connected to the side of the mounting hole (10), and a screw ring (4) connected to the fire extinguisher bottle is connected below the valve body (1).

2. The valve structure of a large-caliber spiral fire extinguisher according to claim 1 is characterized in that: A clamping platform (13) is provided below the valve body (1), the screw coil (4) is clamped to the clamping platform (13), a bottle mouth sealing ring (14) is connected to the bottom of the clamping platform (13), and the bottle mouth sealing ring (14) is placed inside the screw coil (4).

3. The valve structure of a large-caliber spiral fire extinguisher according to claim 1 is characterized in that: The inner ejection hole (11) is connected to a straw seat (15), and the straw seat (15) faces downward.

4. The valve structure of a large-caliber spiral fire extinguisher according to claim 1 is characterized in that: The valve body (1) is provided with a hinge hole (16), the front end of the pressure handle (3) is connected to the hinge hole (16) by a rivet, the top of the valve body (1) is connected with a lifting handle (5), the lifting handle (5) is connected with a rubber chain (50), the end of the rubber chain (50) is connected with a safety pin (51), the pressure handle (3) is provided with a safety hole (30), the safety hole (30) is located on the upper side of the lifting handle (5), and the safety pin (51) is inserted into the safety hole (30).

5. The valve structure of a large-caliber spiral fire extinguisher according to claim 1 is characterized in that: The lower end of the mounting hole (10) is threadedly connected to a riser seat (6), a clearance hole (60) is provided in the middle of the riser seat (6), the valve stem (2) is sleeved with the clearance hole (60), the valve stem (2) is sleeved with a spring (20), the upper end of the spring (20) is connected to the top of the valve stem (2), and the lower end of the spring (20) is connected to the top surface of the riser seat (6).

6. The valve structure of a large-caliber spiral fire extinguisher according to claim 5 is characterized in that: A valve stem sealing groove (21) is provided at the lower end of the valve stem (2), a valve stem sealing ring (22) is sleeved in the valve stem sealing groove (21), and the valve stem sealing ring (22) is placed in the riser seat (6).

7. The valve structure of a large-caliber spiral fire extinguisher according to claim 1 is characterized in that: The outside of the valve body (1) is connected to an air injection valve (17), and the air injection valve (17) is externally connected to a column screw (18).

8. The valve structure of a large-caliber spiral fire extinguisher according to claim 1 is characterized in that: The valve body (1) is installed with a display joint (7), the display joint (7) is provided with a display cavity (70), a release device assembly (71) is installed in the display cavity (70), a display sheet (72) is installed on the top of the display cavity (70), and the release device assembly (71) is connected to the display sheet (72).

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