Carbon dioxide fire extinguisher with air nozzle capable of preventing hand freezing
By incorporating a thickened rubber cylinder and a tin sleeve into the carbon dioxide fire extinguisher, the problem of frostbite on users' hands has been solved, achieving the effect of preventing frostbite during use.
Patent Information
- Application Number
- CN202520092807.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-15
AI Technical Summary
When using a carbon dioxide fire extinguisher, the evaporation of liquid carbon dioxide inside the cylinder releases a large amount of heat, causing the internal temperature of the cylinder to drop rapidly and frost to form on the outside. Direct contact between the user's hands and the carbon dioxide fire extinguisher cylinder can result in frostbite.
A carbon dioxide fire extinguisher with a nozzle designed to prevent hand frostbite is designed. By setting a thickened rubber cylinder and a tin sleeve on the cylinder body, combined with an auxiliary device, the tin sleeve can be unfolded and wrapped around the outside of the bottom of the cylinder body during use. The user can support the outer surface of the tin sleeve with one hand and operate the nozzle by holding the outer surface of the rubber cylinder with the other hand, thus avoiding direct contact between the hand and the nozzle.
This effectively avoids direct contact between the user's hands and the fire extinguisher nozzle, reducing the risk of frostbite and ensuring operational stability and safety.
Smart Images
Figure CN223861197U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fire fighting equipment technical field especially a kind of carbon dioxide fire extinguisher with jet port anti-freezing hand. BACKGROUND
[0002] Carbon dioxide fire extinguisher is a kind of fire fighting equipment, under normal pressure, liquid carbon dioxide can be immediately gasified, when extinguishing, carbon dioxide gas can exclude air and surround the surface of burning object or distribute in relatively closed space, reduce the oxygen concentration around combustible or in protective space, produce asphyxiation effect and extinguish fire. In addition, when carbon dioxide is sprayed from storage container, it will rapidly gasify from liquid to gas, and absorb part of heat from surrounding, to play the role of cooling.
[0003] When using carbon dioxide fire extinguisher, the evaporation of liquid carbon dioxide inside bottle body will release a large amount of heat, causing the temperature inside bottle body to rapidly decrease, frost on the outside, and the user's hand directly contacting with carbon dioxide fire extinguisher bottle body will be frozen, so that carbon dioxide fire extinguisher has certain risk problem when using. UTILITY MODEL CONTENTS
[0004] The technical problem to be solved by the utility model is that when using carbon dioxide fire extinguisher, the evaporation of liquid carbon dioxide inside bottle body will release a large amount of heat, causing the temperature inside bottle body to rapidly decrease, frost on the outside, and the user's hand directly contacting with carbon dioxide fire extinguisher bottle body will be frozen, so that carbon dioxide fire extinguisher has certain risk problem when using.
[0005] The utility model adopts the technical scheme that a kind of carbon dioxide fire extinguisher with jet port anti-freezing hand, including bottle body, the top of bottle body is provided with spray head, one side of spray head is rotatably provided with metal pipe, wherein the surface of metal pipe is provided with thickened rubber cylinder (wherein asbestos net layer is provided between metal pipe and rubber cylinder, and asbestos net can play good heat insulation effect to avoid brittle phenomenon caused by excessive low temperature of rubber), one side of spray head is rotatably connected with two handles, the inner wall of one handle is slidably inserted with bolt, the outer surface of bottle body is installed with protective device by means of auxiliary device, the protective device includes two slot rods, the inner wall of two slot rods is slidably connected with slide rod respectively, one side of slide rod is fixedly connected with L-shaped block, one side of slot rod is provided with clamping groove, one side of L-shaped block is provided with spring, one end of spring is provided with clamping block, the two ends of spring are fixedly connected with one side of L-shaped block and one side of clamping block respectively, one side of clamping block is fixedly connected with round rod, the outer surface of round rod is slid on the inner wall of L-shaped block, spring is in compression state, the bottom end of two slide rods is fixedly connected with tin sleeve, tin sleeve is in folding state, the bottom end of tin sleeve is fixedly connected with bottom disc.
[0006] The effects achieved by the above components are that: by arranging the tin sleeve, the protective device can be installed outside the bottom end of the bottle by the auxiliary device when the fire extinguisher is stored; when a heavy fire extinguisher is used, the sliding rod is pushed at the two groove rods to slide upward to drive the folded tin sleeve to unfold and wrap outside the bottom end of the bottle; when the sliding rod moves to the top end of the groove rod, the compressed spring pushes the clamping block to be inserted into the clamping groove on the outer surface of the groove rod to fix the position of the sliding rod and the tin sleeve; then the pin on the outer surface of the handle is pulled out, the user can hold the bottom end of the bottom disc with one hand and hold the outer surface of the tin sleeve, and hold the outer surface of the rubber cylinder with the other hand; the handle is pressed to spray the liquid carbon dioxide in the bottle to extinguish the fire; the thickened rubber cylinder and the tin sleeve can avoid the user's hands from being directly contacted with the fire extinguisher outlet to be frozen by the evaporation of carbon dioxide as much as possible.
[0007] Preferably, two grooves are arranged at the bottom end of the bottom disc, and the two grooves are respectively arranged at the two sides of the bottom disc.
[0008] The effects achieved by the above components are that: when the user holds the outer surface of the bottom disc with one hand, part of the fingers can be grabbed on the inner wall of the groove, so that the tray and the bottle can be more easily controlled.
[0009] Preferably, the inner wall of the groove is fixedly connected with a tab, and the tab protrudes from one side of the inner wall of the groove.
[0010] The effects achieved by the above components are that: when the user holds the outer surface of the bottom disc with one hand, part of the fingers can be grabbed on the tab protruding from the inner wall of the groove, so that the bottom disc and the bottle can be more stably controlled.
[0011] Preferably, the diameter of the round rod is slightly smaller than the inner diameter of the spring, and the round rod is arranged in the spring.
[0012] The effects achieved by the above components are that: when the spring is deformed, the round rod moves outside, the round rod can reinforce the internal shape of the spring, and transverse deformation of the spring can be avoided as much as possible to affect normal use.
[0013] Preferably, one end of the round rod is fixedly connected with a groove block, and the outer surface of the groove block is in the shape of T.
[0014] The effects achieved by the above components are that: after the clamping block is clamped into the groove block, the round rod can be pulled by pinching the outer surface of the T-shaped groove block, so that the clamping block can be pulled out of the clamping groove more conveniently.
[0015] Preferably, the auxiliary device comprises a circular ring, the bottom end of the circular ring is fixedly connected with the top end of the two groove rods, the inner wall of the circular ring is threadedly connected with a bolt on both sides, and one end of the bolt is rotatably connected with a clamping plate.
[0016] The effect achieved by the components is that when the protective device is installed, the ring is sleeved on the outer surface of the bottle body at the bottom end of the bottle body, the top end of the bottom disc is in contact with the bottom end of the bottle body, then the two bolts on the two sides of the ring are rotated to move the bolts on the inner wall of the ring to clamp the clamping plate at one end on the outer surface of the bottle body, the protective device can be fixed on the outer surface of the bottle body, after the fire extinguisher is used, the clamping plate can be away from the outer surface of the bottle body by rotating the bolt, and then the auxiliary device and the protective device are removed for reuse.
[0017] Preferably, one side of the clamping plate is fixedly connected with a plurality of convex strips made of rubber.
[0018] The effect achieved by the components is that the convex strips made of rubber make the side of the clamping plate provided with the convex strips more stable and not easy to slide when clamped on the outer surface of the bottle body.
[0019] Preferably, one end of the bolt is fixedly connected with a plurality of convex blocks that are circumferentially distributed on the outer surface of the bolt.
[0020] The effect achieved by the components is that holding the convex blocks on the outer surface of the bolt can increase the friction force when the hand contacts the outer surface of the bolt, and the bolt is easier to rotate and not easy to slip.
[0021] The beneficial effects of the utility model are:
[0022] The utility model discloses a thickened rubber cylinder can avoid the direct contact between the hand of the user and the fire extinguisher outlet as much as possible to cause frostbite, the protective device can be moved by pushing the sliding rod to unfold the folded tin sleeve and wrap the outside of the bottom end of the bottle body, when a heavy fire extinguisher is used, one hand can be supported at the bottom end of the bottom disc and supported on the outer surface of the tin sleeve, the fingers of the other hand are supported on the outer surface of the rubber cylinder, and the palm presses the handle to make the liquid carbon dioxide in the bottle body spray out to extinguish the fire. BRIEF DESCRIPTION OF DRAWINGS
[0023] The utility model is further described below in combination with the drawings and examples.
[0024] Figure 1 It is the three-dimensional structure schematic view of the utility model;
[0025] Figure 2 It is the three-dimensional structure schematic view of the bottle body of the utility model;
[0026] Figure 3 It is the three-dimensional structure schematic view of the ring of the utility model;
[0027] Figure 4 It is the three-dimensional structure schematic view of the utility model Figure 3 A place partial enlargement three-dimensional structure schematic view.
[0028] Legend: 1, bottle body; 2, protective device; 3, auxiliary device; 4, spray head; 5, rubber cylinder; 6, handle; 21, groove bar; 22, sliding bar; 23, L-shaped block; 24, spring; 25, clamping block; 26, clamping groove; 27, tin sleeve; 28, bottom plate; 29, groove; 210, tab; 211, round bar; 212, groove block; 31, circular ring; 32, bolt; 33, clamping plate; 34, convex strip; 35, convex block. DETAILED DESCRIPTION
[0029] The utility model will be explained in further detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the utility model in a schematic way, so it only shows the relevant structure of the utility model.
[0030] In the description of the utility model, it should be pointed out that, unless there is explicit provision and limitation, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or integrally connected, or mechanically connected, or electrically connected, or directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0031] Figures 1-4The utility model provides an anti-freezing hand of carbon dioxide fire extinguisher of one jet port, including bottle body 1, the top of bottle body 1 is provided with the nozzle 4, one side of nozzle 4 is rotatably provided with metal pipe, wherein the surface of metal pipe is provided with thickened rubber cylinder 5, one side of nozzle 4 is rotatably connected with two handles 6, the inner wall of one handle 6 is slidably inserted with the bolt, the outer surface of bottle body 1 is installed with the protection device 2 by means of auxiliary device 3, the protection device 2 includes two slot rods 21, the inner wall of two slot rods 21 is slidably connected with slide rod 22 respectively, one side of slide rod 22 is fixedly connected with L-shaped block 23, one side of slot rod 21 is provided with clamping groove 26, one side of L-shaped block 23 is provided with spring 24, one end of spring 24 is provided with clamping block 25, the both ends of spring 24 are fixedly connected with one side of L-shaped block 23 and one side of clamping block 25 respectively, one side of clamping block 25 is fixedly connected with round rod 211, the outer surface of round rod 211 is slidably arranged on the inner wall of L-shaped block 23, spring 24 is in compression state, the bottom of two slide rods 22 is fixedly connected with tin sleeve 27, tin sleeve 27 is in folding state, the bottom of tin sleeve 27 is fixedly connected with bottom disc 28, by setting tin sleeve 27, when storing fire extinguisher, the protection device 2 can be installed at the bottom of bottle body 1 by means of auxiliary device 3, when using heavy fire extinguisher, the slide rod 22 is pushed up and slides to drive the folded tin sleeve 27 to unfold and wrap the bottom of bottle body 1, when slide rod 22 moves to the top of slot rod 21, the compressed spring 24 pushes clamping block 25 to insert into the clamping groove 26 of the outer surface of slot rod 21, the position of slide rod 22 and tin sleeve 27 is fixed, then the bolt on the outer surface of handle 6 is pulled out, the user can hold the bottom of bottom disc 28 and the outer surface of tin sleeve 27 with one hand, and hold the outer surface of rubber cylinder 5 with the other hand, press handle 6 to make the liquid carbon dioxide in bottle body 1 spray out to extinguish fire, the thickened rubber cylinder 5 and tin sleeve 27 can avoid the direct contact between the user's hand and the fire extinguisher outlet as much as possible, and the low temperature caused by the evaporation of carbon dioxide can cause frostbite.
[0032] Figures 2-4 The bottom of bottom disc 28 is provided with two grooves 29, the two grooves 29 are located on the two sides of bottom disc 28 respectively, when the user holds the outer surface of bottom disc 28 with one hand, part of fingers can be held on the inner wall of groove 29, so that the tray and bottle body 1 are more easily controlled, the inner wall of groove 29 is fixedly connected with tab 210, the tab 210 protrudes from the inner wall of groove 29, when the user holds the outer surface of bottom disc 28 with one hand, part of fingers can be held on the protruding tab 210 of the inner wall of groove 29, so that the bottom disc 28 and bottle body 1 are more stable when controlled.
[0033] Figures 2-4The diameter of the round rod 211 is slightly smaller than the inner diameter of the spring 24, the round rod 211 is located inside the spring 24, and the spring 24 moves outside the round rod 211 when it is deformed. The inside shape of the spring 24 can be reinforced by the round rod 211 to avoid the lateral deformation of the spring 24 as much as possible, and the end of the round rod 211 is fixedly connected with the groove block 212, the outer surface of the groove block 212 is T-shaped, and the clamping block 25 is clamped into the groove block 212. After the clamping block 25 is clamped into the groove block 212, the clamping block 25 can be clamped on the outer surface of the T-shaped groove block 212 to pull the round rod 211, which is convenient for more conveniently controlling the round rod 211 to move and pull out the clamping block 25 from the inside of the clamping groove 26.
[0034] Figures 1-3 The auxiliary device 3 includes a circular ring 31, the bottom end of the circular ring 31 is fixedly connected with the top end of the two groove rods 21, the inner wall of the circular ring 31 is threadedly connected with the bolts 32, one end of the bolt 32 is rotatably connected with the clamping plate 33, and the installation protection device 2 is installed on the bottom end of the bottle body 1. The circular ring 31 is upwardly sleeved on the outer surface of the bottle body 1, the top end of the bottom disc 28 is in contact with the bottom end of the bottle body 1, then the two bolts 32 on both sides of the circular ring 31 are rotated to move the bolts 32 in the inner wall of the circular ring 31, and the clamping plate 33 at one end is clamped on the outer surface of the bottle body 1. The protection device 2 can be fixed on the outer surface of the bottle body 1, and after the fire extinguisher is used, the bolts 32 are rotated to move the clamping plate 33 away from the outer surface of the bottle body 1, and then the auxiliary device 3 and the protection device 2 are removed for reuse.
[0035] Figure 3 One side of the clamping plate 33 is fixedly connected with a plurality of protrusions 34 made of rubber material, the protrusions 34 made of rubber material are arranged on one side of the clamping plate 33, and the clamping plate 33 is clamped on the outer surface of the bottle body 1. The clamping plate 33 is more stable and not easy to slide, one end of the bolt 32 is fixedly connected with a plurality of protrusions 35, the protrusions 35 are circumferentially distributed on the outer surface of the bolt 32, and the friction between the hand and the outer surface of the bolt 32 is increased when the protrusions 35 on the outer surface of the bolt 32 are held. The bolt 32 is easier to rotate and not easy to slip.
[0036] Working principle: when storing the fire extinguisher, the ring 31 is sleeved on the outer surface of the bottle body 1 at the bottom end of the bottle body 1, the top end of the bottom disc 28 is in contact with the bottom end of the bottle body 1, then the two bolts 32 on both sides of the ring 31 are rotated to move the bolts 32 on the inner wall of the ring 31 to clamp the clamping plate 33 at one end on the outer surface of the bottle body 1, the protective device 2 can be fixed on the outer surface of the bottle body 1, when using the heavy fire extinguisher, the sliding rod 22 is pushed upward at the two groove rods 21 to drive the folded tin sleeve 27 to expand and wrap outside the bottom end of the bottle body 1, when the sliding rod 22 moves to the top end of the groove rod 21, the compressed spring 24 pushes the clamping block 25 to insert into the clamping groove 26 on the outer surface of the groove rod 21, the position of the sliding rod 22 and the tin sleeve 27 is fixed, then the latch on the outer surface of the handle 6 is pulled out, the user can hold the bottom end of the bottom disc 28 with one hand and hold the outer surface of the tin sleeve 27, hold the outer surface of the rubber cylinder 5 with the other hand, press the handle 6 to spray the liquid carbon dioxide in the bottle body 1 to extinguish the fire, after the fire extinguisher is used, the clamping plate 33 is away from the outer surface of the bottle body 1 by rotating the bolt 32, the auxiliary device 3 and the protective device 2 are removed for reuse.
[0037] With the above ideal embodiments of the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of claims.
Claims
1. A carbon dioxide fire extinguisher with a nozzle designed to prevent hand frostbite, comprising a cylinder (1), characterized in that: A nozzle (4) is provided at the top of the bottle body (1). A metal tube is rotatably provided on one side of the nozzle (4), and a thickened rubber tube (5) is provided on the surface of the metal tube. Two handles (6) are rotatably connected to one side of the nozzle (4). A pin is slidably inserted into the inner wall of one of the handles (6). A protective device (2) is installed on the outer surface of the bottle body (1) with the aid of an auxiliary device (3). The protective device (2) includes two grooved rods (21). A sliding rod (22) is slidably connected to one side of the inner wall of each of the two grooved rods (21). An L-shaped block (23) is fixedly connected to one side of the sliding rod (22). One side of the grooved rod (21) is... A slot (26) is provided on the side of the L-shaped block (23). A spring (24) is provided on one side of the L-shaped block (23). A locking block (25) is provided at one end of the spring (24). The two ends of the spring (24) are fixedly connected to one side of the L-shaped block (23) and one side of the locking block (25), respectively. A round rod (211) is fixedly connected to one side of the locking block (25). The outer surface of the round rod (211) slides on the inner wall of the L-shaped block (23). The spring (24) is in a compressed state. A tin sleeve (27) is fixedly connected to the bottom end of the two sliding rods (22). The tin sleeve (27) is in a folded state. A base plate (28) is fixedly connected to the bottom end of the tin sleeve (27).
2. A carbon dioxide fire extinguisher with a nozzle designed to prevent hand frostbite, as described in claim 1, characterized in that: The bottom end of the chassis (28) has two grooves (29), which are located on both sides of the chassis (28).
3. A carbon dioxide fire extinguisher with a nozzle designed to prevent hand frostbite, as described in claim 2, characterized in that: A protrusion (210) is fixedly connected to the inner wall of the groove (29), and the protrusion (210) protrudes from one side of the inner wall of the groove (29).
4. A carbon dioxide fire extinguisher with a nozzle designed to prevent hand frostbite, as described in claim 3, characterized in that: The diameter of the round rod (211) is slightly smaller than the inner diameter of the spring (24), and the round rod (211) is located inside the spring (24).
5. A carbon dioxide fire extinguisher with a nozzle designed to prevent hand frostbite, as described in claim 4, characterized in that: One end of the round rod (211) is fixedly connected to a groove block (212), and the outer surface of the groove block (212) is T-shaped.
6. A carbon dioxide fire extinguisher with a nozzle designed to prevent hand frostbite, as described in claim 1, characterized in that: The auxiliary device (3) includes a ring (31), the bottom end of which is fixedly connected to the top end of two grooved rods (21), and bolts (32) are threadedly connected to both sides of the inner wall of the ring (31), and a clamping plate (33) is rotatably connected to one end of the bolt (32).
7. A carbon dioxide fire extinguisher with a nozzle designed to prevent hand frostbite, as described in claim 6, characterized in that: A number of protruding strips (34) are fixedly connected to one side of the clamp (33), and the protruding strips (34) are made of rubber.
8. A carbon dioxide fire extinguisher with a nozzle designed to prevent hand frostbite, as described in claim 7, characterized in that: One end of the bolt (32) is fixedly connected to a plurality of protrusions (35), which are distributed in a circular pattern on the outer surface of the bolt (32).