Mechanical emergency starting device

Abstract

The utility model discloses a kind of mechanical emergency starting device, its technical solution main point is including box body component, rotating rod and handle, the end portion of rotating rod can be inserted with handle and be provided with the transmission rod with two ends respectively located above and below rotating rod, handle is provided with the transmission groove for the both ends of transmission rod to extend into, rotating rod includes with the inner rod of box body component insertion, the outer rod of being sleeved in inner rod outer and can be inserted with handle, spring and two limit bolts in outer rod inner, the end portion of inner rod into outer rod and be provided with the limit portion with the profile size greater than the profile size of inner rod end face, the both ends of spring respectively with outer rod and limit portion top touch, two limit bolts are respectively located in the both sides of inner rod and the distance between the end portion of two limit bolts into outer rod inner cavity is less than the width of limit portion, solve the problem that existing technology has rotating rod length fixed and affect cabinet door difficult to close or handle cannot be inserted with rotating rod.

Description

Technical Field

[0001] This utility model relates to the field of fire cabinet emergency technology, and more specifically to a mechanical emergency start device. Background Technology

[0002] Features of the fire pump cabinet mechanical emergency start device: Purely mechanical operation, not relying on any secondary circuits or power supply switching, minimizing potential failure points. The current fire pump cabinet mechanical emergency start device includes a cabinet assembly, a rotating rod, and a handle. The cabinet assembly is located inside the fire pump cabinet. One end of the rotating rod is inserted into the cabinet assembly, with the other end facing outwards. The handle is rotatably connected to the cabinet door. After the cabinet door is closed, the end of the rotating rod not connected to the cabinet assembly is inserted into the handle. The user can rotate the handle to turn the rotating rod, which in turn rotates the relevant parts of the cabinet assembly to start and stop the fire pump. Existing mechanical emergency start devices have defects. The rotating rod is generally a straight rod of fixed length. After the cabinet door and cabinet body are closed, due to assembly errors, processing errors, and other factors, the distance between the handle and the cabinet assembly may be greater than the length of the rotating rod. As a result, the handle and one end of the rotating rod cannot be connected together, and the rotating rod cannot be driven to rotate. There are also cases where the distance between the cabinet door and cabinet assembly is less than the length of the rotating rod, which prevents the cabinet door and cabinet body from closing properly. Both of these situations will affect the normal use of the fire cabinet. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mechanical emergency starting device with adjustable rotating rod length, effective closure of cabinet door and cabinet body, and normal start and stop of fire pump.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mechanical emergency starting device, comprising a housing assembly, a rotating rod that can be inserted into the housing assembly, and a handle that can be inserted into the rotating rod. The rotating rod has a transmission rod with two ends located above and below it at its end that can be inserted into the handle. The handle has a transmission groove into which the two ends of the transmission rod extend. The rotating rod includes an inner rod that can be inserted into the housing assembly, an outer rod sleeved outside the inner rod and inserted into the handle, a spring located inside the outer rod, and two limiting bolts that confine one end of the inner rod within the outer rod. The end of the inner rod extending into the outer rod has a limiting portion with a profile dimension larger than the profile dimension of the inner rod end face. The two ends of the spring respectively abut against the outer rod and the limiting portion. The two limiting bolts are located on both sides of the inner rod, and the distance between the ends of the two limiting bolts extending into the inner cavity of the outer rod is less than the width of the limiting portion. By inserting the handle into one end of the outer rod and pushing the outer rod, the outer rod moves relative to the inner rod.

[0005] As a further improvement of this utility model, the width of the inner cavity of the outer rod for the limiting part to accommodate is greater than the width of the limiting part, and the ends of the two limiting bolts that extend into the outer rod have gaps with the outer wall of the inner rod.

[0006] As a further improvement of this utility model, the end face edge where the inner rod is inserted into the housing assembly is rounded.

[0007] As a further improvement of this utility model, the edge of the end face where the outer rod and the handle are inserted is chamfered.

[0008] As a further improvement of this utility model, the handle is provided with a guide ring that can pass through the cabinet door and is coaxial with the rotation center of the handle. The guide ring is provided with two guide ports that are respectively connected to two transmission grooves. The inner cavity width of the two guide ports gradually changes along the length direction of the outer rod, and the minimum inner cavity width of the two guide ports is equal to the inner cavity width of the transmission groove.

[0009] The beneficial effects of this utility model are as follows: By inserting the handle into one end of the outer rod and pushing the outer rod, the outer rod moves relative to the inner rod. Compared with the prior art, this design makes the length of the rotating rod longer and allows the length of the rotating rod to adapt to changes during the cabinet door closing process. This ensures that the cabinet door and cabinet body can be closed in place while the rotating rod and handle can be effectively inserted, which is beneficial for the handle to control the opening and closing of the cabinet components through the rotating rod. Attached Figure Description

[0010] Figure 1 This is a perspective view of the present utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a cross-sectional view of the transfer rod in this utility model.

[0011] Reference numerals in the attached drawings: 1. Housing assembly; 2. Rotating rod; 21. Inner rod; 22. Outer rod; 23. Spring; 24. Limiting bolt; 25. Limiting part; 3. Handle; 4. Transmission rod; 5. Transmission groove; 6. Guide ring; 7. Guide opening. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals.

[0013] Reference Figures 1 to 3 As shown, a mechanical emergency starting device in this embodiment includes a housing assembly 1, a rotating rod 2 that can be inserted into the housing assembly 1, and a handle 3 that can be inserted into the rotating rod 2. The end of the rotating rod 2 that can be inserted into the handle 3 is provided with a transmission rod 4 with its two ends located above and below the rotating rod 2, respectively. The transmission rod 4 is a cylinder, and the handle 3 is provided with a transmission groove 5 for the two ends of the transmission rod 4 to extend into. Based on the aforementioned prior art, the rotating rod 2 includes an inner rod 21, an outer rod 22, a spring 23, and two limiting bolts 24. One end of the inner rod 21 is integrally formed with a limiting part 25. The outline dimension of the limiting part 25 is larger than the outline dimension of the end face of the inner rod 21. A groove is machined into the outer rod 22 from one end face. The outline dimension of the end face of the groove cavity can match the outline dimension of the limiting part 25. The outer outline of the limiting part 25 is rectangular. Threaded holes communicating with the groove and adjacent to the groove opening are machined on the opposing outer walls of the outer rod 22. The transmission rod 4 is positioned on the end of the outer rod 22 without the groove. During assembly, the spring 23 is inserted into the groove, and then the limiting part 25 of the inner rod 21 is inserted into the groove, pressing the spring 23 to make the limiting part 24... The distance between the positioning part 25 and the groove opening is greater than the distance between the threaded hole and the groove opening. Then, the two limiting bolts 24 are screwed into the two threaded holes respectively. The ends of the two limiting bolts 24 extend into the groove and are close to the outer wall of the inner rod 21. The external force applied to the inner rod 21 is removed, and the inner rod 21 moves outward of the outer rod 22 under the action of the spring 23 until the limiting part 25 touches the ends of the two limiting bolts 24. Finally, the end of the inner rod 21 is fixedly inserted into the box assembly 1, and the box assembly 1 is installed in the fire cabinet. The handle 3 is installed on the cabinet door of the fire cabinet. The cabinet door has a through hole for the outer rod 22 to pass through and is coaxial with the rotation center of the handle 3. The length of the rotating rod 2 in its natural state is greater than the distance between the box assembly 1 and the cabinet opening. During the closing process of the cabinet door and cabinet body, one end of the outer rod 22 equipped with the transmission rod 4 passes through the cabinet door and extends into the handle 3. The two ends of the transmission rod 4 are respectively located in the two transmission grooves 5. As the handle 3 contacts the outer rod 22 and pushes the outer rod 22, the outer rod 22 moves linearly relative to the inner rod 21. The inner rod 21 gradually enters the outer rod 22, the spring 23 is compressed, and the limiting part 25 gradually moves away from the limiting bolt 24 until the cabinet door and cabinet body are closed and locked. The outer rod 22 stops moving relative to the inner rod 21. In case of emergency, the handle 3 can be rotated to make the transmission rod 4 and the rotating rod 2 rotate as a whole and drive the related parts of the cabinet assembly 1 to rotate. During the opening process of the cabinet door, the cabinet door and cabinet body are unlocked. If the elastic coefficient of the spring 23 is large, the cabinet door will be unlocked by the spring 23. Under the action of force, the cabinet will open naturally to a certain extent, making it easier for the user to open the cabinet door quickly. If the elastic coefficient of spring 23 is small and cannot push the cabinet door open, the user needs to apply external force to open the cabinet door. As the cabinet door gradually opens, spring 23 gradually recovers its deformation. The inner rod 21 moves linearly relative to the outer rod 22 and moves outward from the outer rod 22 until the limiting part 25 touches the limiting bolt 24. As the cabinet door continues to open, the outer rod 22 separates from the handle 3. The selection of the elastic coefficient of spring 23 is based on actual needs. If it is necessary to close the cabinet door quickly and the closure between the cabinet door and the cabinet body is stable, then spring 23 with a small elastic coefficient is selected. If it is necessary to open the cabinet door quickly and ignore the resistance generated by spring 23 when the cabinet door is closed, then spring 23 with a large elastic coefficient is selected. Compared with existing technologies, this design makes the length of the rotating rod 2 longer and allows the length of the rotating rod 2 to adapt to changes during the cabinet door closing process. This ensures that the cabinet door and cabinet body can be closed in place, while the rotating rod 2 and handle 3 can be effectively connected, which is beneficial for the handle 3 to control the opening and closing of the cabinet assembly 1 through the rotating rod 2.

[0014] As one specific implementation of the improvement, during the rotation of the cabinet door relative to the cabinet body, there is a situation where the transmission rod 4 swings relative to the transmission groove 4. If the width of the transmission groove 4 is increased, the transmission efficiency of the handle 3 driving the transmission rod 4 to rotate will be reduced, resulting in a deviation between the rotation angle of the rotating rod 2 and the rotation angle of the handle 3, thus affecting the opening and closing of the cabinet assembly 1. To solve the aforementioned problem, refer to Figure 3 As shown, the width of the groove in the horizontal direction is widened, and the width of the inner cavity of the groove is greater than the width of the limiting part 25. The ends of the two limiting bolts 24 that extend into the outer rod 22 are spaced from the outer wall of the inner rod 21, and the distance between the opposing ends of the two limiting bolts 24 is less than the width of the limiting part 25. After the two ends of the transmission rod 4 enter the transmission groove 5, as the cabinet door continues to swing towards the cabinet body, the outer rod 22 moves linearly relative to the inner rod 21 while the outer rod 22 shifts horizontally relative to the inner rod 21. The ends of the two limiting bolts 24 are close to the outer wall of the inner rod 21 and away from the outer wall of the inner rod 21, respectively. That is, the inner rod 21 moves between the two limiting bolts 22. This design can make the linkage between the cabinet door and the outer rod 22 smoother by the relative left and right translation of the outer rod 22 and the inner rod 21 without changing the width of the transmission groove 4, thus improving the convenience of closing the cabinet door. At the same time, it improves the transmission efficiency of the handle 3 and the transmission rod 4 and improves the accuracy of the rotation of the related parts of the cabinet assembly 1.

[0015] As one specific implementation method of the improvement, refer to Figure 1 and Figure 2 As shown, the end face edge where the inner rod 21 is inserted into the housing assembly 1 is rounded. This design facilitates the smooth insertion of the inner rod 21 into the housing assembly 1 and improves assembly efficiency.

[0016] As one specific implementation method of the improvement, refer to Figure 1 and Figure 2 As shown, the edge of the end face where the outer rod 22 is inserted into the handle 3 is beveled. This design facilitates the smooth insertion of the outer rod 22 into the handle 3 and improves the insertion efficiency.

[0017] As one specific implementation method of the improvement, refer to Figure 1 and Figure 2As shown, the handle 3 is provided with a guide ring 6 that can pass through the cabinet door and is coaxial with the rotation center of the handle 3. A guide opening 7 that connects to the transmission groove 5 is machined by cutting at the position corresponding to the guide ring 6 and the transmission groove 5. The width of the inner cavity of the guide opening 7 gradually increases in the direction away from the handle 3. The minimum width of the inner cavity of the guide opening 7 is equal to the inner cavity width of the transmission groove 5. During the closing process of the cabinet door, the transmission rod 4 first enters the guide opening 7 and slides along the inner wall of the guide opening 7. Then the transmission rod 4 enters the transmission groove 5. This design can improve the probability of the transmission rod 4 smoothly entering the transmission groove 5, improve the insertion efficiency of the handle 3 and the transmission rod 4, and at the same time, it can also adjust the relative position of the outer rod 22 relative to the inner rod 21.

[0018] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A mechanical emergency starting device, comprising a housing assembly (1), a rotating rod (2) that can be inserted into the housing assembly (1), and a handle (3) that can be inserted into the rotating rod (2), wherein the end of the rotating rod (2) that can be inserted into the handle (3) is provided with a transmission rod (4) with its two ends located above and below the rotating rod (2), and the handle (3) is provided with a transmission groove (5) into which the two ends of the transmission rod (4) extend, characterized in that: The rotating rod (2) includes an inner rod (21) that is inserted into the housing assembly (1), an outer rod (22) that is sleeved on the inner rod (21) and can be inserted into the handle (3), a spring (23) located inside the outer rod (22), and two limiting bolts (24) that limit one end of the inner rod (21) to be located inside the outer rod (22). The end of the inner rod (21) that extends into the outer rod (22) is provided with a limiting part whose outline dimension is larger than the outline dimension of the end face of the inner rod (21). (25) The two ends of the spring (23) are in contact with the outer rod (22) and the limiting part (25) respectively. The two limiting bolts (24) are located on both sides of the inner rod (21) and the distance between the ends of the two limiting bolts (24) that extend into the inner cavity of the outer rod (22) is less than the width of the limiting part (25). By inserting the handle (3) into one end of the outer rod (22) and pushing the outer rod (22), the outer rod (22) moves relative to the inner rod (21).

2. The mechanical emergency starting device according to claim 1, characterized in that: The width of the inner cavity of the outer rod (22) for the limiting part (25) to accommodate is greater than the width of the limiting part (25), and the ends of the two limiting bolts (24) that extend into the outer rod (22) have gaps with the outer wall of the inner rod (21).

3. A mechanical emergency starting device according to claim 1 or 2, characterized in that: The end face edge of the inner rod (21) that is inserted into the box assembly (1) is rounded.

4. A mechanical emergency starting device according to claim 1 or 2, characterized in that: The outer rod (22) has a chamfered edge on the end face where it is inserted into the handle (3).

5. A mechanical emergency starting device according to claim 1 or 2, characterized in that: The handle (3) is provided with a guide ring (6) that can pass through the cabinet door and is coaxial with the rotation center of the handle (3). The guide ring (6) is provided with two guide ports (7) that are respectively connected to two transmission grooves (5). The inner cavity width of the two guide ports (7) gradually changes along the length direction of the outer rod (22). The minimum inner cavity width of the two guide ports (7) is equal to the inner cavity width of the transmission groove (5).

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