Fire hydrant key
By incorporating a movable column and flexible connecting components within the fire hydrant key, the problem of insufficient adaptability of different fire hydrant keys is solved, achieving universality of one key for multiple fire hydrants and improving the convenience of fire-fighting operations.
Patent Information
- Application Number
- CN202422640588.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing fire hydrant keys cannot open fire hydrants of different sizes and models at the same time, forcing firefighters to carry multiple keys, which is very inconvenient.
A fire hydrant key was designed, with multiple movable columns inside the key head. The columns are adjusted according to the shape of the fire hydrant by an elastic connecting component, forming a groove that matches the fire hydrant, thus adapting to fire hydrants of different sizes and models.
This technology enables the use of a single key to open multiple fire hydrants, improving the convenience and efficiency of firefighting operations.
Smart Images
Figure CN223562630U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fire fighting equipment technical field especially relates to a fire hydrant key. BACKGROUND
[0002] Fire hydrant, a fixed fire fighting facility, main function is control combustible, insulate combustion-supporting material, eliminate ignition source. Fire hydrant is one of fixed fire fighting facilities, it is main facility of fire fighting water supply. And in the fire fighting process, because different fire hydrant can have different size and shape, therefore, need fireman to carry multiple different shape and size fire hydrant key, it is very inconvenient.
[0003] Therefore, a fire hydrant key capable of opening multiple different shape and size fire hydrant is urgently needed. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at at least one of the technical problems in prior art or related art.
[0005] Therefore, the utility model provides a fire hydrant key, can open different size and model fire hydrant, so that fire hydrant key can realize the function that one key can open multiple fire hydrant.
[0006] A fire hydrant key according to the utility model embodiment, comprising:
[0007] Connecting rod,
[0008] Handle, the first end of connecting rod is connected,
[0009] Key head, the second end of connecting rod is connected, the key head is equipped with cavity, and the side away from the connecting rod of the cavity is equipped with opening,
[0010] Cylinder, the length direction of multiple cylinders is parallel with the length direction of connecting rod, and is closely arranged in the cavity, wherein, each cylinder can move along the length direction corresponding to it,
[0011] When the key head contacts with fire hydrant, the cylinder corresponding to the position of fire hydrant can move to the direction away from the opening under the pushing action of fire hydrant, so that multiple cylinders form the groove matched with fire hydrant.
[0012] Optionally, the cylinder has first position and second position, the first position is the position of the cylinder under the pushing action of fire hydrant, and the second position is the position of the cylinder under the pushing action of fire hydrant,
[0013] The cylinder is installed in the cavity through an elastic connecting assembly at an end away from the opening, the elastic connecting assembly is used to provide a supporting force for the cylinder not under the pushing action of the fire hydrant so as to make the cylinder in the first position, and the elastic connecting assembly is also used to make the cylinder under the pushing action of the fire hydrant move towards the direction close to the connecting rod so as to make the cylinder in the second position.
[0014] Optionally, the elastic connecting assembly comprises:
[0015] A connecting plate is located in the cavity, and a plane where the connecting plate is located is perpendicular to the axis of the connecting rod; the outer edge of the connecting plate is connected with the inner wall of the cavity to divide the cavity into a first chamber and a second chamber; the first chamber is close to the second end of the connecting rod, the opening is located on the second chamber, and the cylinder is located in the second chamber;
[0016] A spring is located in the second chamber, the first end of the spring is connected with the connecting plate, and the second end of the spring is connected with the cylinder; the elastic direction of the spring is the same as the axis direction of the cylinder.
[0017] Optionally, the elastic connecting assembly further comprises:
[0018] A guide rod is coaxially arranged with the cylinder and connected with the cylinder, and the guide rod passes through the connecting plate and can be axially moved.
[0019] Optionally, the first end of the guide rod is provided with a protrusion, the protrusion is located in the first chamber, and the second end of the guide rod passes through the connecting plate and the spring in sequence and is connected with the cylinder.
[0020] Optionally, the plurality of cylinders are all cylinders with the same shape and size; and the outer surfaces of the plurality of cylinders are tangentially arranged.
[0021] Optionally, the key head is detachably connected to the second end of the connecting rod.
[0022] Optionally, the handle is detachably connected to the first end of the connecting rod.
[0023] Optionally, the connecting rod is a telescopic rod with adjustable length.
[0024] Optionally, the connecting rod, the key head, the handle and the cylinder are all made of stainless steel.
[0025] One of the above technical solutions has at least the following advantages or beneficial effects:
[0026] For the fire hydrant key of the utility model embodiment, a plurality of column bodies whose length directions are parallel to the length direction of the connecting rod are arranged in the cavity of the key head, each column body can move along the corresponding length direction, and when the key head contacts the fire hydrant, the column body corresponding to the position of the fire hydrant can move to the direction away from the opening under the pushing action of the fire hydrant to be opened, and then the plurality of column bodies in the cavity can form a groove matched with the fire hydrant to be opened according to the external shape of the fire hydrant. It can be seen that the fire hydrant key provided by the utility model can adjust the positions of the plurality of column bodies according to the external shape of the fire hydrant to be opened, so that the plurality of column bodies can form a groove corresponding to the fire hydrant to be opened, and then the fire hydrant key can open fire hydrants of different sizes and types, so that the fire hydrant key can open multiple fire hydrants with one key. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 A fire hydrant key structure schematic view of one embodiment provided by the utility model is shown;
[0028] Figure 2 A structure schematic view of the key head of one embodiment provided by the utility model is shown;
[0029] Figure 3 A plan view of the key head of one embodiment provided by the utility model is shown;
[0030] Figure 4 A bottom view of the key head of one embodiment provided by the utility model is shown;
[0031] Figure 5 A column body and elastic connecting assembly connection schematic view of one embodiment provided by the utility model is shown.
[0032]
Explanation of reference numerals
[0033] 1, connecting rod, 2, handle, 3, key head, 4, column body, 5, elastic connecting assembly, 6, fixed pin, 101, first rod body, 102, second rod body, 103, first connecting pipe, 301, opening, 302, second connecting pipe, 501, connecting plate, 502, spring, 503, guide rod, 504, protruding block. DETAILED DESCRIPTION
[0034] In order to better explain the utility model, so as to facilitate understanding, the utility model is described in detail in combination with the drawings through specific embodiments.
[0035] In the fire fighting process, the following problems exist in the use of fire hydrant: the current used fire hydrant head is mostly pentagonal, and the corresponding fire hydrant key is also pentagonal interface; the old fire hydrant head is not pentagonal, so the current fire hydrant key does not match the old fire hydrant. In the fire fighting process, the firefighters need to carry multiple different shapes of fire hydrant keys, which is very inconvenient. The old fire hydrant has two types, one is square head, and the other is triangular head. After the triangular head is dropped, the lower stand is a smaller square head, so square fire hydrant keys, triangular fire hydrant keys and smaller square connectors are needed to open the fire hydrant in the above three cases.
[0036] In order to solve at least one of the technical problems existing in the prior art or related art, the utility model provides a fire hydrant key, the fire hydrant key includes connecting rod, handle, key head and cylinder, handle and the first end of connecting rod are connected, key head and the second end of connecting rod are connected, key head is equipped with cavity, the side of cavity away from connecting rod is equipped with opening, the length direction of multiple cylinders is parallel with the length direction of connecting rod, and is closely arranged in the cavity, wherein, each cylinder can move along the length direction corresponding to it, when key head contacts with fire hydrant, the cylinder corresponding to the position of fire hydrant can move to the direction away from opening under the pushing action of fire hydrant, to make multiple cylinders form the groove matched with fire hydrant. The fire hydrant key provided by the utility model makes multiple cylinders adjust position according to the external shape of the fire hydrant to be opened, so that multiple cylinders can form the groove corresponding to the fire hydrant to be opened, and then the fire hydrant key can open fire hydrants of different sizes and models, so that the fire hydrant key can open multiple fire hydrants with one key.
[0037] The fire hydrant key according to some embodiments provided by the utility model is described below with reference to the drawings.
[0038] Referring to Figures 1 to 5 The fire hydrant key provided by one embodiment of the utility model includes connecting rod 1, handle 2, key head 3 and cylinder 4, handle 2 and the first end of connecting rod 1 are connected, key head 3 and the second end of connecting rod 1 are connected, key head 3 is equipped with cavity, the side of cavity away from connecting rod 1 is equipped with opening 301, the length direction of multiple cylinders 4 is parallel with the length direction of connecting rod 1, and is closely arranged in the cavity, wherein, each cylinder 4 can move along the length direction corresponding to it, when key head 3 contacts with fire hydrant, the cylinder 4 corresponding to the position of fire hydrant can move to the direction away from opening 301 under the pushing action of fire hydrant, to make multiple cylinders 4 form the groove matched with fire hydrant.
[0039] Here, the cavity can be a cylindrical cavity, and the axis of the cylindrical cavity and the axis of the connecting rod 1 are on the same straight line; the opening 301 is an annular opening 301.
[0040] It should be noted that when the fire hydrant key in the embodiment is in an unused state, all the columns 4 located in the cavity are not pushed by the fire hydrant, at this time, the end face of the far end of all the columns 4 located in the cavity is located on the plane where the opening 301 is located; when the fire hydrant key in the embodiment is used to open the fire hydrant, that is, when the key head 3 is in contact with the fire hydrant, the column 4 corresponding to the position of the fire hydrant can move in the direction away from the opening 301 under the pushing action of the fire hydrant, and the column 4 not corresponding to the position of the fire hydrant does not move, that is, the end face of the far end of the column 4 not corresponding to the position of the fire hydrant is still located on the plane where the opening 301 is located, at this time, the plurality of columns 4 in the cavity of the key head 3 can form a groove matched with the fire hydrant according to the external shape of the fire hydrant.
[0041] For example, when opening a fire hydrant located in a well, the fire hydrant key is inserted into the well so that the key head 3 is in contact with the fire hydrant and controls the key head 3 to continue to move downward, and then the column 4 corresponding to the position of the fire hydrant moves in the direction away from the opening 301 under the pushing action of the top of the fire hydrant, and then the plurality of columns 4 form a groove matched with the fire hydrant.
[0042] The fire hydrant key provided by the embodiment is characterized in that a plurality of columns 4 whose length directions are parallel to the length direction of the connecting rod 1 are arranged in the cavity of the key head 3, each column 4 can move along the corresponding length direction, and when the key head 3 is in contact with the fire hydrant, the column 4 corresponding to the position of the fire hydrant moves in the direction away from the opening 301 under the pushing action of the fire hydrant to be opened, and then the plurality of columns 4 in the cavity form a groove matched with the fire hydrant according to the external shape of the fire hydrant to be opened. It can be seen that the fire hydrant key provided by the embodiment can adjust the positions of the plurality of columns 4 according to the external shape of the fire hydrant to be opened, so that the plurality of columns 4 can form a groove corresponding to the fire hydrant to be opened, and then the fire hydrant key can open fire hydrants of different sizes and types, so that the fire hydrant key can open multiple fire hydrants with one key.
[0043] In some possible implementation, the column 4 has a first position and a second position, the first position is the position of the column 4 not under the pushing action of the fire hydrant, and the second position is the position of the column 4 under the pushing action of the fire hydrant; the end of the column 4 away from the opening 301 is installed in the cavity through the elastic connecting assembly 5, the elastic connecting assembly 5 is used to provide a supporting force for the column 4 not under the pushing action of the fire hydrant, so that the column 4 is in the first position; the elastic connecting assembly 5 is also used to move the column 4 under the pushing action of the fire hydrant to the direction close to the connecting rod 1, so that the column 4 is in the second position.
[0044] It should be noted that when the column 4 is in the first position, the end face of the column 4 away from the connecting rod 1 is located in the plane where the opening 301 is located; here, the second position changes according to the size of the fire hydrant, and after the column 4 is moved to the second position under the pushing action of the fire hydrant, the end face of the column 4 away from the connecting rod 1 is in contact with the fire hydrant, so that the plurality of columns 4 located in the cavity form a groove matched with the fire hydrant.
[0045] Here, by installing the column 4 in the cavity through the elastic connecting assembly 5, not only can the column 4 be moved to the direction away from the opening 301 under the pushing action of the fire hydrant, so that the plurality of columns 4 in the cavity form a groove matched with the fire hydrant, but also after the pushing action of the fire hydrant on the column 4 is removed, the column 4 can be moved from the second position to the first position under the rebound action of the elastic connecting assembly 5, and under the action of the supporting force of the elastic connecting assembly 5, all the columns 4 can be kept in the first position, so that the fire hydrant key returns to the unused state, and further, the fire hydrant key can open a plurality of different types of fire hydrants.
[0046] In some possible implementation, referring to Figure 2 , Figure 3 and Figure 5 , the elastic connecting assembly 5 includes a connecting plate 501 and a spring 502, the connecting plate 501 is located in the cavity, and the plane where the connecting plate 501 is located is perpendicular to the axis of the connecting rod 1; the outer edge of the connecting plate 501 is connected with the inner wall of the cavity, so as to divide the cavity into a first chamber and a second chamber; wherein the first chamber is close to the second end of the connecting rod 1, the opening 301 is located on the second chamber, and the column 4 is located in the second chamber; the spring 502 is located in the second chamber, the first end of the spring 502 is connected with the connecting plate 501, and the second end of the spring 502 is connected with the column 4; wherein the elastic direction of the spring 502 is the same as the axis direction of the column 4.
[0047] Here, the plane where the connecting plate 501 is located can be parallel to the plane where the opening 301 is located; the extension direction of the spring 502 is the same as the length direction of the connecting rod 1.
[0048] The spring 502 can be a threaded spring made of steel wire, and the maximum compression length of the spring 502 can be 35 mm.
[0049] In the embodiment, the elastic connection assembly 5 is fixed in the cavity by selecting the elastic connection assembly 5 as the connecting plate 501 and the spring 502, fixing the connecting plate 501 on the inner wall of the cavity, and connecting the first end of the spring 502 with the connecting plate 501. Meanwhile, the column 4 moves along the axial direction of the column 4 by compression or expansion of the spring 502 by connecting the second end of the spring 502 with the column 4 and making the elastic direction of the spring 502 the same as the axial direction of the column 4.
[0050] In some possible implementational embodiments, the elastic connection assembly 5 further includes a guide rod 503, the guide rod 503 is coaxially arranged with the column 4, and the guide rod 503 is connected with the column 4, the guide rod 503 passes through the connecting plate 501 and is axially movable.
[0051] Here, the guide rod 503 can be made of stainless steel; the length of the guide rod 503 is less than the length of the first cavity. The plurality of guide rods 503 can be screws with the same shape and size.
[0052] It should be noted that a plurality of connecting holes are formed in the connecting plate 501, the positions of the plurality of connecting holes correspond to the positions of the plurality of columns 4 one by one, the plurality of guide rods 503 are respectively inserted into the plurality of connecting holes one by one, and each guide rod 503 can move along the axial direction after being inserted into the corresponding connecting hole.
[0053] In the embodiment, the guide rod 503 coaxially arranged with the column 4 can axially move relative to the connecting plate 501 after the guide rod 503 passes through the connecting plate 501, which can ensure that the column 4 moves along the axial direction of the column 4 under the pushing action of the fire hydrant.
[0054] In some possible implementational embodiments, the first end of the guide rod 503 is provided with a protrusion 504, the protrusion 504 is located in the first cavity, and the second end of the guide rod 503 passes through the connecting plate 501 and the spring 502 in sequence and is connected with the column 4.
[0055] Here, by providing the protrusion 504 at the first end of the guide rod 503, the guide rod 503 can be prevented from being separated from the connecting plate 501 when the guide rod 503 moves along the column 4 to the direction close to the opening 301.
[0056] In some possible implementational embodiments, the plurality of columns 4 are cylinders with the same shape and size; the outer surfaces of the plurality of columns 4 are tangentially arranged.
[0057] Here, the size of the column 4 can be M3*35+6 mm.
[0058] In the embodiment, by selecting the plurality of column bodies 4 as the same shape and size of the cylinder, not only the batch production of the column bodies 4 is facilitated, but also by tangentially arranging the outer surfaces of the plurality of column bodies 4, after the column bodies 4 corresponding to the hydrant positions are moved away from the opening 301, the column bodies 4 located at the outer peripheral side of the hydrant can contact the hydrant to realize the fixation of the hydrant in the groove formed by the plurality of column bodies 4.
[0059] In some possible implementation, the key head 3 is detachably connected to the second end of the connecting rod 1.
[0060] Here, the second end of the connecting rod 1 can be provided with a first connecting pipe 103, and the top of the key head 3 is provided with a second connecting pipe 302, the second connecting pipe 302 can be inserted into the first connecting pipe 103, and the second connecting pipe 302 is fixed on the first connecting pipe 103 by the fixing pin 6, so as to realize the detachable connection of the key head 3 and the connecting rod 1.
[0061] In the embodiment, by detachably connecting the key head 3 to the second end of the connecting rod 1, the connection flexibility of the key head 3 on the connecting rod 1 can be improved, and the disassembly of the key head 3 on the connecting rod 1 is facilitated, and further the maintenance or replacement of the key head 3 is facilitated.
[0062] In some possible implementation, the handle 2 is detachably connected to the first end of the connecting rod 1.
[0063] Here, the first end of the connecting rod 1 is provided with a first mounting hole, and the handle 2 can be inserted into the first mounting hole to realize the detachable connection of the handle 2 and the first end of the connecting rod 1; or the first end of the connecting rod 1 is provided with a plug-in part, and the handle 2 is provided with a second mounting hole, and the plug-in part can be inserted into the second mounting hole to realize the detachable connection of the handle 2 and the first end of the connecting rod 1.
[0064] In the embodiment, by detachably connecting the handle 2 to the first end of the connecting rod 1, the disassembly of the handle 2 on the connecting rod 1 can be realized, and further when the hydrant key is not used, the handle 2 is disassembled from the connecting rod 1, and further the carrying of the entire hydrant key is facilitated.
[0065] In some possible implementation, the connecting rod 1 is a telescopic rod with adjustable length.
[0066] Here, the connecting rod 1 can include a first rod body 101 and a second rod body 102, the first rod body 101 is sleeved on the second rod body 102 and can axially move relative to the second rod body 102, and when the first rod body 101 moves to a preset position, i.e., the length of the connecting rod 1 is a target length, the first rod body 101 is fixed on the second rod body 102 by a fixing part; wherein the fixing part can be a fixing pin.
[0067] In the embodiment, the connecting rod 1 is selected as a telescopic rod with adjustable length, so that the length of the connecting rod 1 can be adjusted according to the actual position of the fire hydrant, thereby improving the applicability of the entire fire hydrant key.
[0068] In some possible implementation embodiments, the connecting rod 1, the key head 3, the handle 2 and the column body 4 are all made of stainless steel.
[0069] Here, by making the connecting rod 1, the key head 3, the handle 2 and the column body 4 all of stainless steel, the damage of the fire hydrant key due to rust of its components can be avoided.
[0070] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.
[0071] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0072] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature is "above", "above" and "above" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" and "below" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.
[0073] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.
[0074] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can modify, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A fire hydrant key, characterized in that, include: Connecting rod; The handle is connected to the first end of the connecting rod; A key head is connected to the second end of the connecting rod. The key head has a cavity, and the cavity has an opening on the side away from the connecting rod. The column, wherein the length direction of each column is parallel to the length direction of the connecting rod and is closely arranged within the cavity; wherein each column can move along its corresponding length direction; When the key head contacts the fire hydrant, the column corresponding to the position of the fire hydrant can move away from the opening under the pushing action of the fire hydrant, so that the multiple columns form a groove that matches the fire hydrant.
2. The fire hydrant key according to claim 1, characterized in that, The column has a first position and a second position. The first position is the position of the column when it is not pushed by the fire hydrant, and the second position is the position of the column when it is pushed by the fire hydrant. The end of the column away from the opening is installed in the cavity via an elastic connecting assembly. The elastic connecting assembly is used to provide support for the column when it is not being pushed by the fire hydrant, so that the column is in the first position. The elastic connecting assembly is also used to move the column under the pushing action of the fire hydrant towards the connecting rod, so that the column is in the second position.
3. The fire hydrant key according to claim 2, characterized in that, The resilient connection component includes: A connecting plate is located within the cavity, and the plane of the connecting plate is perpendicular to the axis of the connecting rod; the outer edge of the connecting plate is connected to the inner wall of the cavity to divide the cavity into a first chamber and a second chamber; wherein, the first chamber is close to the second end of the connecting rod, the opening is located on the second chamber, and the column is located inside the second chamber; A spring is located in the second chamber, with its first end connected to the connecting plate and its second end connected to the column; wherein the elastic direction of the spring is the same as the axial direction of the column.
4. The fire hydrant key according to claim 3, characterized in that, The resilient connection component also includes: A guide rod is coaxially arranged with the column and connected to the column. The guide rod passes through the connecting plate and can move axially.
5. The fire hydrant key according to claim 4, characterized in that, The first end of the guide rod is provided with a protrusion, which is located in the first cavity. The second end of the guide rod passes through the connecting plate and the spring in sequence and is connected to the column.
6. The fire hydrant key according to claim 1, characterized in that, The plurality of cylinders are all cylinders of the same shape and size; the outer surfaces of the plurality of cylinders are arranged tangentially.
7. The fire hydrant key according to claim 1, characterized in that, The key head is detachably connected to the second end of the connecting rod.
8. The fire hydrant key according to claim 1, characterized in that, The handle is detachably connected to the first end of the connecting rod.
9. The fire hydrant key according to claim 1, characterized in that, The connecting rod is a telescopic rod with adjustable length.
10. The fire hydrant key according to claim 1, characterized in that, The connecting rod, the key head, the handle, and the column are all made of stainless steel.