Movable fire extinguisher

Abstract

The invention discloses a movable fire extinguisher which comprises a cart main body and a fire extinguisher body arranged on the cart main body, a nozzle assembly is arranged on the fire extinguisher body, and a nozzle piece, a sealing piece, a lifting handle, a pressing handle and a limiting piece are arranged in the nozzle assembly. The limiting piece is pushed upwards to compress the first spring, then pressure is applied to the pressing handle, and the pressing handle is kept to pull the sealing piece to move upwards to compress the second spring. The movable fire extinguisher is compact in structure and ingenious in design, a pressing handle does not need to be pressed for a long time when an existing fire extinguisher structure extinguishes fire, so that arm fatigue is relieved, the spraying angle of the spraying pipe on the fire extinguisher body can be better mastered, fire extinguishing raw materials are sprayed with the maximum spraying amount while the fire extinguishing efficiency is improved, and the practicability is high. Meanwhile, the situation that the fire extinguisher body is in a spraying state due to pulling of the limiting pin caused by misoperation can be avoided, and the storage safety of the fire extinguisher body is further improved.

Description

Technical Field

[0001] The present invention relates to fire extinguisher technology, in particular to a mobile fire extinguisher. Background Art

[0002] At present, traditional mobile fire extinguishers all include a fire extinguisher body and a cart. The fire extinguisher body is set on the cart and fixed by a fixing ring. When the fire extinguisher is not in use, the position of the pressure handle is usually limited by a limit pin so that it will not rotate when pressed, making it impossible to use the fire extinguisher, thereby improving safety performance and avoiding accidental pressing. Minors are curious about things and are likely to take them out to play, and the limit pin is set in a conspicuous place and can be easily pulled out by them, causing accidents. At the same time, the existing fire extinguisher pressure handle needs to be pressed continuously when in use. Long-term pressing will cause the pressure force applied by the hand to gradually weaken, and will cause fatigue in the pressing hand, affecting the fire extinguishing efficiency. Summary of the Invention

[0003] In order to solve the defects of the above-mentioned prior art, the present invention proposes a mobile fire extinguisher.

[0004] A mobile fire extinguisher, comprising: Cart body; A fire extinguisher body is arranged on the cart body, and the fire extinguisher body is provided with a nozzle assembly, and the nozzle assembly is provided with a nozzle part, a sealing part, a carrying handle, a pressure handle and a limiter. The nozzle part is connected to the fire extinguisher body, the sealing part is arranged inside the nozzle part, the limiter is sleeved on the nozzle part, the carrying handle is sleeved outside the limiter, the pressure handle is hinged to the carrying handle, and a fixing part is provided at the upper end of the carrying handle, and the fixing part is connected to the nozzle part; The nozzle member is provided with a symmetrically arranged movable opening, a limiting body is provided in the movable opening, the limiting body is hinged in the movable opening through a first hinge rod, the limiting member is provided with a symmetrically arranged avoidance hole, the avoidance hole cooperates with the limiting body, the upper end of the limiting member is provided with a first spring, the first spring is located at the lower end of the fixing member, the sealing member is placed in the middle of the nozzle member, the sealing member is provided with a plurality of limiting grooves that cooperate with the limiting member, the sealing member is also provided with a sealing body, the sealing body is provided with a second spring, and the second spring is sleeved on the sealing member, Push the limiter upward to compress the first spring, then apply pressure to the pressing handle, keep the pressing handle to pull the seal upward to compress the second spring.

[0005] In the present invention, the nozzle member is composed of a first tube body, a second tube body and a third tube body, the second tube body is arranged at the upper end of the first tube body, the third tube body is arranged on the side of the first tube body, a first movable hole is formed in the middle of the first tube body, a second movable hole is formed in the middle of the second tube body, the movable port is arranged on the second tube body, and the diameter of the first movable hole is larger than the diameter of the second movable hole.

[0006] In the present invention, a first external thread is provided on the second tube body, a first internal thread matching the first external thread is provided in the middle of the fixing member, and a plurality of first limiting ribs are provided on the second tube body.

[0007] In the present invention, a first through hole is formed in the middle of the limiting member, and a first strip groove cooperating with the first limiting rib is formed in the middle of the first through hole. A symmetrically arranged elastic body is provided on the limiting member, and the elastic body is located outside the avoidance hole. The elastic body is connected to the limiting member through a connecting part.

[0008] In the present invention, a limiting undercut is provided at the upper end of the elastic body, a positioning opening and a retaining opening cooperating with the limiting undercut are provided on the outer wall of the handle, and a pushing block is also provided on the elastic body, and the pushing block is located above the connecting portion.

[0009] In the present invention, the carrying handle is composed of a sleeve, a first handle, a first hinged arm, a first hinged portion and a second hinged portion. A second through hole is formed in the middle of the sleeve, a second limiting rib is provided in the second through hole, and an avoidance opening that cooperates with the elastomer is provided on the sleeve.

[0010] In the present invention, a second strip groove cooperating with the second limiting rib is provided on the outer wall of the limiting member.

[0011] In the present invention, the limiting body is composed of a limiting end and a rotating end, the limiting end cooperates with the limiting groove, and the limiting body is provided with a contact surface that cooperates with the limiting member.

[0012] In the present invention, an elastic member is further provided in the avoidance hole, and the elastic member is located at the lower end of the limiting body. The elastic member is composed of a limiting section, a spiral section and an insertion section. The limiting section is located at the lower end of the rotating end, and the insertion section is inserted into the inner wall of the avoidance hole. A second hinged rod is provided in the middle of the spiral section, and the second hinged rod is installed on the limiting member.

[0013] The mobile fire extinguisher implemented in the present invention has the following beneficial effects: the mobile fire extinguisher has a compact structure and an ingenious design, which can eliminate the need to press the handle for a long time when extinguishing a fire with the existing fire extinguisher structure, thereby reducing arm fatigue, and can also better control the spray angle of the spray pipe on the fire extinguisher body, thereby improving the fire extinguishing efficiency while achieving the maximum spray amount of fire extinguishing materials. At the same time, it can also avoid misoperation that causes the limit pin to be pulled out and the fire extinguisher body to be in a spraying state, further improving the storage safety of the fire extinguisher body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a mobile fire extinguisher according to the present invention;

[0015] Figure 2 for Figure 1 The main view;

[0016] Figure 3 for Figure 2 A local enlarged view of point A in FIG;

[0017] Figure 4 for Figure 1 Schematic diagram of the nozzle assembly structure;

[0018] Figure 5 for Figure 4 A schematic diagram of the structure in another direction;

[0019] Figure 6 for Figure 4 A top view of

[0020] Figure 7 for Figure 6 Cross-sectional view at BB in ;

[0021] Figure 8 for Figure 7 A local enlarged view of point C in FIG;

[0022] Figure 9 for Figure 4 Exploded diagram;

[0023] Figure 10 for Figure 9 Schematic diagram of the pressure handle structure in FIG;

[0024] Figure 11 for Figure 9 Schematic diagram of the fixing structure in FIG;

[0025] Figure 12 for Figure 9 Schematic diagram of the handle structure in ;

[0026] Figure 13 for Figure 12 sectional view of ;

[0027] Figure 14 for Figure 9 The cross-sectional view of the limiter structure;

[0028] Figure 15 for Figure 9 Schematic diagram of the structure of the limiting body and the elastic member;

[0029] Figure 16 for Figure 9 Schematic diagram of the nozzle structure;

[0030] Figure 17 for Figure 16 sectional view of ;

[0031] Figure 18 for Figure 9 Schematic diagram of the seal structure.

[0032] In the figure: trolley body 1, fire extinguisher body 2, fixing ring 3, roller 4, push handle 5, nozzle assembly 6, nozzle member 7, sealing member 8, carrying handle 9, pressure handle 10, limiter 11, spray pipe 12, fixing member 13, avoidance hole 14, limiter 15, first spring 16, limit groove 17, sealing member 18, second spring 19, first tube body 20, second tube body 21, third tube body 22, first movable hole 23, second movable hole Hole 24, third movable hole 25, movable opening 26, first hinge rod 27, limiting end 28, rotating end 29, contact surface 30, first hinge hole 31, elastic member 32, limiting section 33, spiral section 34, insertion section 35, second hinge rod 36, first connecting section 37, second connecting section 38, second hinge hole 39, insertion hole 40, first rod body 41, second rod body 42, nut 43, pressure plate 44, positioning ring 45 , third bearing surface 46, second bearing surface 47, first bearing surface 48, compression area 49, third notch 50, second notch 51, first notch 52, third fixing hole 53, second fixing hole 54, first fixing hole 55, first external thread 56, first internal thread 57, first limiting rib 58, through hole 59, first through hole 60, first strip groove 61, elastic body 62, connecting part 63, limiting undercut 64, positioning port 65, holding port 66, pushing block 67, sleeve 68, first handle 69, first hinge arm 70, first hinge part 71, second hinge part 72, second through hole 73, second limiting rib 74, avoidance port 75, second strip groove 76, pressing part 77, connecting arm 78, second hinge arm 79, third hinge rod 80, third hinge hole 81, connecting plate 82, strip hole 83, limiting pin 84, second external thread 85. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0034] like Figures 1 to 18 As shown, the mobile fire extinguisher of the present invention includes a trolley body 1 and a fire extinguisher body 2. The fire extinguisher body 2 is restricted on the trolley body 1 by a fixing ring 3. The fixing ring 3 can be a buckle structure, which is an existing structure and will not be elaborated here.

[0035] The lower end of the cart body 1 is provided with a roller 4, and the upper end is provided with a push handle 5.

[0036] The fire extinguisher body 2 is mounted on the cart body 1 and is provided with a nozzle assembly 6. The nozzle assembly 6 includes a nozzle element 7, a seal 8, a carrying handle 9, a pressure handle 10, and a stopper 11. The nozzle element 7 is connected to the fire extinguisher body 2. The seal 8 is mounted inside the nozzle element 7. The stopper 11 fits over the nozzle element 7. The carrying handle 9 fits over the outside of the stopper 11. The pressure handle 10 is hinged to the carrying handle 9. A fixing member 13 is provided at the upper end of the carrying handle 9 and is connected to the nozzle element 7.

[0037] The limiting member 11 is provided with symmetrically arranged avoidance holes 14, which cooperate with the limiting body 15. A first spring 16 is provided at the upper end of the limiting member 11, and the first spring 16 is located at the lower end of the fixing member 13. The sealing member 8 is placed in the middle of the nozzle member 7. The sealing member 8 is provided with multiple limiting grooves 17 that cooperate with the limiting member 11. The sealing member 8 is also provided with a sealing body 18, and the sealing body 18 is provided with a second spring 19, which is sleeved on the sealing member 8.

[0038] The nozzle assembly 7 consists of a first tube 20, a second tube 21, and a third tube 22. The second tube 21 is positioned at the upper end of the first tube 20, and the third tube 22 is positioned to the side of the first tube 20. The centerlines of the first and second tubes 20, 21, coincide, and the centerline of the third tube 22 is perpendicular to the centerline of the first tube 20. A first movable hole 23 is formed in the center of the first tube 20, a second movable hole 24 is formed in the center of the second tube 21, and a third movable hole 25 is formed in the center of the third tube 22. The sealing body 18 is positioned below the third movable hole 25. Only when the sealing member 8 is lifted upward can the sealing body 18 be maintained in its upward position, thereby maintaining the sealing body 18 in the middle or upper end of the third movable hole 25. When the sealing body 18 is in the middle of the third movable hole 25, the spray volume is reduced. When the sealing body 18 is at the upper end of the third movable hole 25, the spray volume is increased, allowing for adjustment based on the actual fire situation.

[0039] A first bearing surface 48 is provided on the second tube body 21 for cooperating with the fixing member 13 , a second bearing surface 47 is provided on the first tube body 20 for supporting the handle 9 , and a third bearing surface 46 is provided at the connection between the first tube body 20 and the second tube body 21 for supporting the limit member 11 .

[0040] The nozzle member 7 is provided with a symmetrically arranged movable opening 26. A stopper 15 is disposed within the movable opening 26. The stopper 15 is hingedly connected to the movable opening 26 via a first hinged rod 27. Specifically, the movable opening 26 is disposed on the second tube 21. The lower end of the first tube 20 is provided with a second external thread 85, which secures the first tube 20 to the fire extinguisher body 2.

[0041] The limiting body 15 is composed of a limiting end 28 and a rotating end 29. The limiting end 28 cooperates with the limiting groove 17. The limiting body 15 is provided with a contact surface 30 that cooperates with the limiting member 11. The inner wall of the movable opening 26 is provided with a first hinge hole 31 that cooperates with the first hinge rod 27.

[0042] The movable opening 26 is also provided with an elastic member 32, located at the lower end of the limiting body 15. The elastic member 32 consists of a limiting section 33, a spiral section 34, and an insertion section 35. The limiting section 33 is located at the lower end of the rotating end 29, and the insertion section 35 is inserted into the inner wall of the movable opening 26. A second hinge rod 36 is provided in the middle of the spiral section 34, and the second hinge rod 36 is mounted on the limiting member 11. The insertion section 35 is connected to the spiral section 34 via a first connecting section 37, and the limiting section 33 is connected to the spiral section 34 via a second connecting section 38. The inner wall of the movable opening 26 is provided with a second hinge hole 39 that cooperates with the second hinge rod 36. The inner wall of the movable opening 26 is also provided with an insertion hole 40 that cooperates with the insertion section 35.

[0043] When the elastic member 32 is in a natural state, the angle between the first connecting section 37 and the second connecting section 38 is kept greater than 50°, so that when the limiting body 15 is not restricted by the limiting member 11, it can keep the limiting section 33 pushing the rotating end 29 to rotate upward, while the limiting end 28 rotates downward, keeping the limiting end 28 out of the restriction of the limiting groove 17.

[0044] The seal 8 is composed of a first rod body 41, a second rod body 42 and a sealing body 18. The diameter of the first rod body 41 is smaller than the diameter of the second rod body 42. A thread can be set on the first rod body 41, and a nut 43 is provided on the first rod body 41 to facilitate the nut 43 to maintain an indirect connection with the pressure handle 10, so that when pressure is applied to the pressure handle 10, the pressure handle 10 can be kept pulling the seal 8 upward.

[0045] The movable opening 26 is provided on the second tube body 21 . The diameter of the first movable hole 23 is larger than that of the second movable hole 24 , so that the first movable hole 23 can cooperate with the sealing body 18 , while the second movable hole 24 can cooperate with the first rod body 41 .

[0046] The fixing member 13 is composed of a pressure plate 44 and a positioning ring 45. The second tube 21 is provided with a first external thread 56. The center of the positioning ring 45 is provided with a first internal thread 57 that mates with the first external thread 56. The second tube 21 is provided with multiple first limiting ribs 58. The center of the pressure plate 44 is provided with a through hole 59 that mates with the first rod 41.

[0047] A first through hole 60 is formed in the middle of the limiting member 11, and a first strip groove 61 cooperating with the first limiting rib 58 is formed in the middle of the first through hole 60. A symmetrically arranged elastic body 62 is provided on the limiting member 11, and the elastic body 62 is located outside the avoidance hole 14. The elastic body 62 is connected to the limiting member 11 through a connecting portion 63.

[0048] A limiting undercut 64 is provided at the upper end of the elastic body 62. A positioning notch 65 and a retaining notch 66 are provided on the outer wall of the handle 9, which cooperate with the limiting undercut 64. The positioning notch 65 is located above the retaining notch 66. The elastic body 62 is also provided with a push block 67, which is located above the connecting portion 63. A compression region 49 is formed between the lower end of the elastic body 62 and the outer wall of the limiting member 11.

[0049] The positioning opening 65, the retaining opening 66, and the limiting undercut 64 are all provided with a flat surface and an inclined surface. The flat surface is located below the inclined surface. When the limiting undercut 64 is placed in the positioning opening 65, the flat surface of the limiting undercut 64 cooperates with the flat surface in the positioning opening 65 to limit the position, thereby limiting the first spring 16 from pushing the limiting member 11 back to its original position. The inclined surface in the retaining opening 66 cooperates with the inclined surface of the limiting undercut 64. When the elastic body 62 is pushed upward, the cooperation of the two inclined surfaces can guide the limiting undercut 64 to disengage from the retaining opening 66.

[0050] The handle 9 comprises a sleeve 68, a first grip 69, a first hinge arm 70, a first hinge portion 71, and a second hinge portion 72. A second through-hole 73 is formed in the center of the sleeve 68, within which a second retaining rib 74 is located. The sleeve 68 is provided with a relief opening 75 that engages with the elastic body 62. The outer wall of the retaining member 11 is provided with a second strip-shaped groove 76 that engages with the second retaining rib 74.

[0051] The pressing handle 10 is composed of a pressing portion 77, a connecting arm 78, and a second hinged arm 79. The connecting arm 78 connects the pressing portion 77 and the second hinged arm 79. The connecting arm 78 is arranged at an angle and is hingedly connected to the second hinged portion 72 via a third hinged rod 80. The connecting arm 78 is provided with a third hinged hole 81 that cooperates with the third hinged rod 80. A connecting plate 82 is provided in the middle of the second hinged arm 79, and a strip-shaped hole 83 is provided in the middle of the connecting plate 82. The first rod body 41 is disposed in the strip-shaped hole 83, and the nut 43 is disposed at the upper end of the strip-shaped hole 83. When the connecting plate 82 rotates upward, the nut 43 can be driven upward by the connecting plate 82, thereby driving the sealing member 8 upward.

[0052] A stop pin 84 is positioned between the second hinge arm 79 and the first hinge portion 71. This stop pin 84 prevents accidental contact with the handle 10, which could cause the extinguishing agent to be ejected from the fire extinguisher body 2. A first fixing hole 55 is defined in the first hinge portion 71, a second fixing hole 54 is defined in the second hinge arm 79, and a third fixing hole 53 is defined in the first rod 41. The stop pin 84 is inserted into the first, second, and third fixing holes 55, 54, 53.

[0053] During use, first push the elastic body 62 on the limiter 11 upward, that is, push the push block 67 upward. This causes the limiter 11 to compress the first spring 16, keeping the avoidance hole 14 at the relative position of the limiter 15. Under the push of the elastic member 32, the limiter 15 rotates, keeping the rotating end 29 rotated into the avoidance hole 14, so that the limiter end 28 is disengaged from the limit groove 17, and at the same time, the limit buckle 64 is kept in the positioning hole 65 to prevent the limiter 11 from resetting. Then, the limit pin 84 is pulled out, and pressure is applied to the pressure handle 10, keeping the connecting plate 82 of the pressure handle 10 pulling the seal 8 upward to compress the second spring 19, so that the seal 18 is located in the middle or upper end of the third movable hole 25.

[0054] The three limiting slots 17 on the second rod 42 are a first slot 52, a second slot 51, and a third slot 50. The first slot 52 is located at the bottom, and the third slot 50 is located at the top. When the limiting body 15 is in the first slot 52, the sealing body 18 is kept closed to the first movable hole 23. When the limiting body 15 is in the second slot 51, the sealing body 18 is positioned in the middle of the third movable hole 25, resulting in a smaller amount of fire extinguishing material being ejected. When the limiting body 15 is in the third slot 50, the sealing body 18 is positioned at the top of the third movable hole 25, resulting in a maximum amount of fire extinguishing material being ejected.

[0055] When a long-term spraying and extinguishing is required, the limiting body 15 can be placed in the second notch 51 or the third notch 50. When the pressure handle 10 is pressed halfway, the lower end of the elastic body 62 can be pushed to deform the elastic body 62, and the limiting undercut 64 can be released from the position of the positioning hole 65, so that the limiting member 11 pushes the limiting body 15 to rotate, and the limiting end 28 is placed in the second notch 51. Alternatively, the limiting body 15 can be directly kept in the third notch 50 to spray the fire extinguishing material at the maximum spray rate. When the limiting body 15 is placed in the second notch 51 or the third notch 50, there is no need to press the pressure handle 10 again.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mobile fire extinguisher, characterized in that: include: Cart body; A fire extinguisher body is arranged on the cart body, and the fire extinguisher body is provided with a nozzle assembly, and the nozzle assembly is provided with a nozzle part, a sealing part, a carrying handle, a pressure handle and a limiter. The nozzle part is connected to the fire extinguisher body, the sealing part is arranged inside the nozzle part, the limiter is sleeved on the nozzle part, the carrying handle is sleeved outside the limiter, the pressure handle is hinged to the carrying handle, and a fixing part is provided at the upper end of the carrying handle, and the fixing part is connected to the nozzle part; The nozzle member is provided with a symmetrically arranged movable opening, a limiting body is provided in the movable opening, the limiting body is hinged in the movable opening through a first hinge rod, the limiting member is provided with a symmetrically arranged avoidance hole, the avoidance hole cooperates with the limiting body, the upper end of the limiting member is provided with a first spring, the first spring is located at the lower end of the fixing member, the sealing member is placed in the middle of the nozzle member, the sealing member is provided with a plurality of limiting grooves that cooperate with the limiting member, the sealing member is also provided with a sealing body, the sealing body is provided with a second spring, and the second spring is sleeved on the sealing member, Push the limiter upward to compress the first spring, then apply pressure to the pressing handle, keep the pressing handle to pull the seal upward to compress the second spring.

2. The mobile fire extinguisher according to claim 1, characterized in that: The nozzle member is composed of a first tube body, a second tube body and a third tube body. The second tube body is arranged at the upper end of the first tube body, and the third tube body is arranged on the side of the first tube body. A first movable hole is formed in the middle of the first tube body, and a second movable hole is formed in the middle of the second tube body. The movable port is arranged on the second tube body, and the diameter of the first movable hole is larger than the diameter of the second movable hole.

3. The mobile fire extinguisher according to claim 2, characterized in that: The second tube body is provided with a first external thread, the middle of the fixing piece is provided with a first internal thread matching the first external thread, and the second tube body is provided with a plurality of first limiting ribs.

4. The mobile fire extinguisher according to claim 3, characterized in that: A first through hole is formed in the middle of the limiting member, and a first strip groove cooperating with the first limiting rib is formed in the middle of the first through hole. A symmetrically arranged elastic body is provided on the limiting member, and the elastic body is located outside the avoidance hole. The elastic body is connected to the limiting member through a connecting portion.

5. The mobile fire extinguisher according to claim 4, characterized in that: A limiting undercut is provided at the upper end of the elastic body, a positioning opening and a retaining opening cooperating with the limiting undercut is provided on the outer wall of the handle, and a pushing block is also provided on the elastic body, and the pushing block is located above the connecting portion.

6. The mobile fire extinguisher according to claim 5, characterized in that: The carrying handle is composed of a sleeve, a first handle, a first hinged arm, a first hinged portion and a second hinged portion. A second through hole is formed in the middle of the sleeve, a second limiting rib is provided in the second through hole, and an avoidance opening that cooperates with the elastomer is provided on the sleeve.

7. The mobile fire extinguisher according to claim 6, characterized in that: A second strip groove cooperating with the second limiting rib is provided on the outer wall of the limiting member.

8. The mobile fire extinguisher according to claim 1, characterized in that: The limiting body is composed of a limiting end and a rotating end. The limiting end cooperates with the limiting groove. The limiting body is provided with a contact surface that cooperates with the limiting member.

9. The mobile fire extinguisher according to claim 8, characterized in that: An elastic member is also provided in the avoidance hole, and the elastic member is located at the lower end of the limiting body. The elastic member consists of a limiting section, a spiral section and an insertion section. The limiting section is located at the lower end of the rotating end, and the insertion section is inserted into the inner wall of the avoidance hole. A second hinged rod is provided in the middle of the spiral section, and the second hinged rod is installed on the limiting member.

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