Fire fighting truck supporting assembly and three-phase jet flow fire fighting truck

Abstract

The utility model discloses a fire fighting truck supporting assembly and a three-phase jet fire fighting truck, and relates to the technical field of fire fighting equipment, the fire fighting truck supporting assembly comprises a supporting column connected with a fire fighting truck body through an extension arm, a plurality of containing groove cavities are formed in the circumferential surface of a column body of the supporting column, and branch rod assemblies are arranged in the containing groove cavities; the supporting column is movably connected with a locking ring unit in a sleeved mode, and the locking ring unit can lock and limit the branch rod assemblies in the unfolded state and the folded state. Therefore, in order to enlarge the contact surface between the bottom end of the supporting column and the ground during use, the branch rod assemblies are folded into the containing groove cavities during storage, space occupation is reduced, the structure is simple, operation is convenient and fast, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, specifically to a fire truck support assembly and a three-phase jet fire truck. Background Art

[0002] Three-phase jet fire truck is a new type of fire truck that can organically combine high-efficiency fire extinguishing agents in solid, liquid and gas phases in a specific ratio. It has the advantages of rapid cooling, high-efficiency fire extinguishing and energy saving and environmental protection. Since the three-phase jet fire truck is usually equipped with a boom mechanism to increase the range of the water cannon, in order to ensure the overall stability of the fire truck when the boom is fully extended, it is usually necessary to set up a corresponding support assembly on the vehicle body.

[0003] Existing common support assemblies for vehicle bodies mainly consist of a horizontally telescopic extension arm and a support column vertically mounted on the extension arm. When the extension arm extends, the support column contacts the ground to form a support structure, thereby increasing the contact area between the vehicle body and the ground and improving overall stability. The drawback of the above method is that, since the bottom end of the support column is usually fixed with a pad to increase the contact area with the ground, if the pad is too large, it is not easy to store in the vehicle body; if the pad is too small, it reduces the effect of dispersing the pressure of the support column. To solve the above problems, we propose a fire truck support assembly and a three-phase jet fire truck. Utility Model Content

[0004] The purpose of this utility model is to provide a fire truck support assembly and a three-phase jet fire truck to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fire truck support assembly includes a support column connected to the fire truck body via an extension arm. The support column has multiple receiving cavities on its circumferential surface. Each receiving cavity contains a branch rod assembly. The bottom end of each branch rod assembly is rotatably connected to the bottom end of a receiving cavity via a shaft. The branch rod assembly has an extended state that increases the contact area between the bottom end of the support column and the ground, and a retracted state located within a receiving cavity. The support column is movably fitted with a locking ring unit, which can lock and limit the branch rod assembly in both the extended and retracted states.

[0007] Preferably, the branch rod assembly includes a connecting rod, a side rod is fixed to one side of the connecting rod, and an extension rod is slidably engaged on the body of the side rod.

[0008] Preferably, one end of the side rod is provided with a T-shaped slot, the cross-section of the extension rod is a T-shaped structure that fits into the T-shaped slot, and the insertion end of the extension rod is connected to the bottom end of the T-shaped slot by a connecting rope.

[0009] Preferably, the locking ring unit includes a rotating ring that is rotatably sleeved at the bottom of the support column. The top of the rotating ring is provided with multiple crossbars corresponding to each branch rod assembly. One end of each crossbar is fixed to the rotating ring through a connecting block, and a locking space is formed between the crossbar and the rotating ring.

[0010] Preferably, the bottom of the crossbar has a beveled portion.

[0011] Preferably, the rotating ring has multiple pre-drilled holes on its circumferential surface, which together form an anti-slip texture.

[0012] Preferably, the three-phase jet fire truck is equipped with the aforementioned fire truck support assembly.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In this invention, a branch rod assembly with an unfolded state and a retracted state is provided at the bottom of the support column, and a locking ring unit is provided to lock and limit the branch rod assembly in the unfolded and retracted states. By setting the branch rod assembly and switching the branch rod assembly between the unfolded and retracted states, it is possible to increase the contact surface between the bottom of the support column and the ground during use, and to fold the branch rod assembly into the receiving cavity to reduce space occupation during storage. The structure is simple, the operation is convenient, and the practicality is strong.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0016] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram showing the position of the support column on the vehicle body of a fire truck support assembly according to this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the support column of a fire truck support assembly according to the present invention;

[0020] Figure 3 This is a schematic diagram of the branch rod assembly of a fire truck support assembly in its unfolded state according to the present invention.

[0021] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the branch rod assembly of a fire truck support assembly in a stowed state, according to the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Support column; 2. Receiving cavity; 3. Branch rod assembly; 3.1. Connecting rod; 3.2. Side rod; 3.3. Extension rod; 3.4. T-shaped slot; 3.5. Connecting rope; 4. Shaft; 5. Locking ring unit; 5.1. Rotating ring; 5.2. Crossbar; 5.3. Connecting block; 5.4. Beveled part; 5.5. Reserved hole. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0026] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0027] Please see Figure 1-5This utility model provides a fire truck support assembly, including a support column 1 connected to the fire truck body via an extension arm. The support column 1 has multiple receiving cavities 2 on its circumferential surface. Each receiving cavity 2 is provided with a branch rod assembly 3. The bottom end of the branch rod assembly 3 is rotatably connected to the bottom end of the receiving cavity 2 via a shaft 4. The branch rod assembly 3 has an unfolded state that increases the contact area between the bottom end of the support column 1 and the ground, and also has a retracted state located within the receiving cavity 2. The support column 1 is movably sleeved with a locking ring unit 5, which can lock and limit the branch rod assembly 3 in both the unfolded and retracted states.

[0028] Specifically, the axis of the support column 1 is perpendicular to the horizontal plane, and multiple receiving cavities 2 are evenly distributed on the circumferential surface of the support column 1. The length direction of each receiving cavity 2 is parallel to the axis of the support column 1. The cross-section of the receiving cavity 2 is rectangular, and the branch rod assembly 3 can rotate around the shaft 4.

[0029] In actual use, when the fire truck reaches the designated fire position and extends the support column 1, the locking ring unit 5 is switched from the locked state to the unlocked state. Then, the branch rod assembly 3 is deflected around the shaft 4, so that the branch rod assembly 3 is switched from the groove of the receiving cavity 2 to a position perpendicular to the support column 1. At this time, the locking ring unit 5 is switched from the unlocked state to the locked state, so that the perpendicular state of the branch rod assembly 3 and the support column 1 is locked and maintained. At this time, the side of the branch rod assembly 3 and the bottom surface of the support column 1 are on the same horizontal plane, thereby increasing the force-bearing area when the bottom of the support column 1 contacts the ground.

[0030] Similarly, when the support column 1 needs to be stored, the locking ring unit 5 is switched from the locked state to the unlocked state, so that the branch rod assembly 3 is returned to the corresponding receiving cavity 2. Then, the locking ring unit 5 is switched from the unlocked state to the locked state, so that the branch rod assembly 3 located in the receiving cavity 2 is locked, thereby reducing the radial space occupied by the support column 1. Without affecting the support area of ​​the support column 1, the contact area between the support column 1 and the ground is also increased. The overall structure is simple, easy to operate, and highly practical.

[0031] In another embodiment of this utility model, the branch rod assembly 3 includes a connecting rod 3.1, one end of which is hinged to the shaft 4, and a side rod 3.2 is fixed on one side of the connecting rod 3.1. The axis of the side rod 3.2 is parallel to the axis of the connecting rod 3.1, and an extension rod 3.3 is slidably engaged on the body of the side rod 3.2.

[0032] The side rod 3.2 has a T-shaped slot 3.4 at one end, and the extension rod 3.3 has a T-shaped cross-section that fits into the T-shaped slot 3.4. The insertion end of the extension rod 3.3 is connected to the bottom end of the T-shaped slot 3.4 by a connecting rope 3.5. When the axis of the connecting rod 3.1 is perpendicular to the axis of the support column 1, the bottom surfaces of both the side rod 3.2 and the extension rod 3.3 are parallel to the bottom surface of the support column 1, thus ensuring that both the side rod 3.2 and the extension rod 3.3 can contact the ground.

[0033] Furthermore, the locking ring unit 5 includes a rotating ring 5.1 rotatably sleeved at the bottom of the support column 1. The top of the rotating ring 5.1 is provided with multiple crossbars 5.2 corresponding to each branch rod assembly 3. One end of each crossbar 5.2 is fixed to the rotating ring 5.1 through a connecting block 5.3. A locking space is formed between the crossbar 5.2 and the rotating ring 5.1. The bottom of the crossbar 5.2 is provided with a beveled part 5.4.

[0034] Preferably, the rotating ring 5.1 has multiple reserved holes 5.5 on its circumferential surface. The multiple reserved holes 5.5 form an anti-slip texture on the circumferential surface of the rotating ring 5.1, which facilitates the rotation of the rotating ring 5.1. It can also drive the rotating ring 5.1 to rotate by inserting a corresponding rod into the reserved hole 5.5.

[0035] In actual use, when the branch rod assembly 3 is in the unfolded state, the length lines of the connecting rod 3.1, the side rod 3.2, and the extension rod 3.3 are all perpendicular to the axis of the support column 1. Depending on the actual situation, the extension rod 3.3 can be pulled out from the T-shaped slot 3.4 on the side rod 3.2 to increase the contact area with the ground. At the same time, the connecting rod 3.1 contacts the top of the rotating ring 5.1, causing the rotating ring 5.1 to rotate clockwise, thus locking the connecting rod 3.1 in the locking space formed between the crossbar 5.2 and the rotating ring 5.1, thereby locking and limiting the deflection of the connecting rod 3.1 around the axis rod 4. Similarly, when unlocking, the rotating ring 5.1 rotates counterclockwise, causing the connecting rod 3.1 to disengage from the locking space.

[0036] When the branch rod assembly 3 is in the retracted state, the length lines of the connecting rod 3.1, the side rod 3.2, and the extension rod 3.3 are all parallel to the axis of the support column 1. At this time, the rotating ring 5.1 rotates clockwise until the crossbar 5.2 is below the bottom of the side rod 3.2, and the top of the crossbar 5.2 contacts the bottom of the side rod 3.2, thus blocking the side rod 3.2 from deflecting as the connecting rod 3.1 deflects, thereby locking and limiting the deflection of the connecting rod 3.1 around the axis rod 4. Similarly, when unlocking, the rotating ring 5.1 rotates counterclockwise, and the crossbar 5.2 disengages from below the bottom of the side rod 3.2.

[0037] The three-phase jet fire truck is equipped with the aforementioned fire truck support assembly. By setting up a branch rod assembly and switching the branch rod assembly between an extended state and a retracted state, it can increase the contact area between the bottom of the support column and the ground when in use, and reduce the space occupation by folding the branch rod assembly into the receiving cavity when retracted. The structure is simple, easy to operate, and highly practical.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fire truck support assembly, comprising a support column (1) connected to the fire truck body via an extension arm, characterized in that: The support column (1) has multiple receiving cavities (2) on its circumferential surface. Each receiving cavity (2) is provided with a branch rod assembly (3). The bottom end of the branch rod assembly (3) is rotatably connected to the bottom end of the receiving cavity (2) through a shaft (4). The branch rod assembly (3) has an unfolded state that increases the contact area between the bottom end of the support column (1) and the ground. The branch rod assembly (3) also has a retracted state located in the receiving cavity (2). The support column (1) is movably sleeved with a locking ring unit (5). The locking ring unit (5) can lock and limit the branch rod assembly (3) in both the unfolded and retracted states.

2. The fire truck support assembly according to claim 1, characterized in that, The branch rod assembly (3) includes a connecting rod (3.1), a side rod (3.2) is fixed to one side of the connecting rod (3.1), and an extension rod (3.3) is slidably engaged on the body of the side rod (3.2).

3. A fire truck support assembly according to claim 2, characterized in that, One end of the side rod (3.2) is provided with a T-shaped slot (3.4), and the cross-section of the extension rod (3.3) is a T-shaped structure that is adapted to engage with the T-shaped slot (3.4). The insertion end of the extension rod (3.3) is connected to the bottom end of the T-shaped slot (3.4) by a connecting rope (3.5).

4. A fire truck support assembly according to claim 3, characterized in that, The locking ring unit (5) includes a rotating ring (5.1) rotatably sleeved at the bottom of the support column (1). The top of the rotating ring (5.1) is provided with multiple crossbars (5.2) corresponding to each branch rod assembly (3). One end of each crossbar (5.2) is fixed to the rotating ring (5.1) through a connecting block (5.3). The crossbars (5.2) and the rotating ring (5.1) form a locking space.

5. A fire truck support assembly according to claim 4, characterized in that, The bottom of the crossbar (5.2) is provided with a beveled part (5.4).

6. A fire truck support assembly according to claim 5, characterized in that, The rotating ring (5.1) has multiple reserved holes (5.5) on its circumferential surface, and the multiple reserved holes (5.5) form an anti-slip texture on the circumferential surface of the rotating ring (5.1).

7. A three-phase jet fire truck, characterized in that, The three-phase jet fire truck is equipped with a fire truck support assembly as described in any one of claims 1-6.

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