Emergency valve quick release structure and manual emergency operation valve

Abstract

The emergency valve quick release structure comprises a sleeve and an ejector rod, the sleeve is fixed to the right side of a brake master pin of a platform truck tire in a matched mode, a threaded hole penetrating left and right is formed in the sleeve, and the threaded hole and the brake master pin are coaxially arranged; the ejector rod is provided with a threaded section which is in threaded connection with the threaded hole in a matched mode. The sleeve is fixed to the brake master pin, the ejector rod is screwed into the sleeve through the thread structure, the brake master pin is pushed into a tire, and therefore a brake system of the platform car is relieved, and the problems that the brake master pin is deformed and damaged and a valve bonnet is prone to being lost due to the fact that the brake master pin is directly knocked are solved.

Description

Technical Field

[0001] The utility model relates to the field of aircraft containerized cargo loading platform vehicles, and particularly relates to a quick-release structure for an emergency valve and a manual emergency operation valve. Background Technique

[0002] The manual emergency operation valve is a control braking unit in the emergency system of the platform vehicle and is an important module responsible for switching between the braking emergency system and the normal system of the platform vehicle. When the platform vehicle suddenly breaks down and needs to be evacuated urgently, the emergency valve must be opened first to release the vehicle braking system before the platform vehicle can be successfully evacuated from the aircraft. In the existing operation method, it is necessary to use external tools to remove the valve cap on the tire to expose the brake kingpin, then use tools such as a hammer to knock the brake kingpin to move it inward, and finally install the valve cap in the reverse direction and fix it so that the protruding part on the valve cap abuts against the brake kingpin to prevent the brake kingpin from rebounding and resulting in the failure of braking release.

[0003] In this operation method, there are problems such as deformation and damage of the brake kingpin caused by knocking, easy loss of the valve cap, and usually multiple people are required to cooperate to complete the disassembly and reverse reinstallation of the valve cap, which takes a long time and is likely to cause flight delays. Content of the Utility Model

[0004] The purpose of the utility model is to provide a quick-release structure for an emergency valve and a manual emergency operation valve. By fixing a sleeve on the brake kingpin and screwing a push rod into the sleeve through a threaded structure to push the brake kingpin into the tire, the braking system of the platform vehicle can be released, thus avoiding the problems of deformation and damage of the brake kingpin caused by directly knocking the brake kingpin and easy loss of the valve cap.

[0005] The technical solution adopted by the utility model to solve the above problems is as follows:

[0006] A quick-release structure for an emergency valve and a manual emergency operation valve, including a sleeve and a push rod. The sleeve is adaptively fixed on the right side of the brake kingpin of the platform vehicle tire. A threaded hole penetrating through from left to right is provided in the sleeve and is coaxially arranged with the brake kingpin. A threaded section adapted to be threadedly connected with the threaded hole is provided on the push rod.

[0007] In the above technical solution, preferably, a handle is provided at the right end of the push rod.

[0008] In the above technical solution, preferably, a plurality of fixing holes are provided at the left end of the sleeve and are evenly distributed in a circumferential manner. The number and diameter of the fixing holes are the same as those of the fixing holes on the valve cap of the platform vehicle tire. The sleeve is installed on the outside of the brake kingpin through fixing bolts and the fixing holes.

[0009] In the above technical solution, preferably, the ejector rod includes a screw rod and a sliding rod. The screw rod has a hollow structure with an open right end, and a threaded section is provided on the screw rod. The sliding rod is slidably arranged left and right inside the screw rod, and a handle is fixed to the right end of the sliding rod.

[0010] In the above technical solution, preferably, two long guide rails symmetrically arranged with the axis of the screw rod as the symmetry axis and two short guide rails symmetrically arranged with the axis of the screw rod as the symmetry axis are provided inside the cavity of the screw rod. Two sliders symmetrically arranged with the axis of the sliding rod as the symmetry axis are provided on the side surface of the sliding rod. The two sliders are slidably arranged in the two long guide rails or the two short guide rails in a matching manner.

[0011] In the above technical solution, preferably, a tension spring is connected between the screw rod and the sliding rod. The left and right ends of the tension spring are respectively connected to the left end of the cavity of the screw rod and the left end of the sliding rod.

[0012] In the above technical solution, preferably, an extension cylinder is provided at the left end of the sleeve. The extension cylinder is provided with threads of the same specification as the threaded hole, and the extension cylinder is sleeved on the brake kingpin.

[0013] Compared with the prior art, the present invention has the following advantages and effects:

[0014] (1) In the present invention, the sleeve is fixed on the right side of the brake kingpin during installation, and the ejector rod is screwed into the threaded hole of the sleeve through a threaded structure, so that the left end of the ejector rod contacts the brake kingpin and pushes the brake kingpin to move leftward, thereby pushing the brake kingpin into the tire to release the braking system of the platform vehicle. At the same time, the position of the ejector rod can be locked through the threaded structure, thereby reducing the risk of the brake kingpin rebounding and causing the failure of braking release. Therefore, by using the present invention to release the braking system of the platform vehicle, the problems of deformation and damage of the brake kingpin caused by directly knocking the brake kingpin and the easy loss of the valve cap can be avoided.

[0015] (2) After the present invention is installed, it can be left on the tire without being removed, which is convenient for a single person to operate to quickly release the braking system when the platform vehicle fails and needs to be evacuated urgently next time, shortening the time required for the emergency evacuation of the platform vehicle and reducing the probability of causing flight delays. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the use state of the emergency valve quick-release structure and the manual emergency operation valve in the embodiment of the present invention.

[0017] Figure 2 is Figure 1 the exploded view of

[0018] Figure 3 is Figure 2 the internal structure schematic diagram of the screw rod in

[0019] Figure 4 is Figure 1 a partial sectional view of

[0020] Among them, there are sleeve 1, threaded hole 11, fixing hole 12, fixing bolt 13, extension tube 14, ejector rod 2, threaded section 21, screw rod 22, sliding rod 23, long guide rail 24, short guide rail 25, slider 26, brake kingpin 3, handle 4, and tension spring 5. Specific embodiments

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, and the present invention is not limited to the following embodiments.

[0022] See Figures 1-4 , in this embodiment, an emergency valve quick-release structure and a manual emergency operation valve include a sleeve 1 and an ejector rod 2. The sleeve 1 is fixedly adapted to the right side of the brake kingpin 3 of the platform truck tire. A left-right through threaded hole 11 is provided in the sleeve 1, and the threaded hole 11 is coaxially arranged with the brake kingpin 3. A threaded section 21 adapted to be threadedly connected with the threaded hole 11 is provided on the ejector rod 2.

[0023] When the present invention is installed and used, the valve cap on the platform truck tire is removed to expose the brake kingpin 3, and then the sleeve 1 is fixed to the right side of the brake kingpin 3 so that the threaded hole 11 is aligned with the brake kingpin 3. Then, the ejector rod 2 is screwed into the threaded hole 11 of the sleeve 1 through the threaded structure. By continuously screwing the ejector rod 2, the left end of the ejector rod 2 contacts the brake kingpin 3 and pushes the brake kingpin 3 to move leftward, thereby pushing the brake kingpin 3 into the tire to release the braking system of the platform truck. At the same time, the position of the ejector rod 2 can be locked through the threaded structure, thereby reducing the risk of the brake kingpin 3 rebounding and causing the failure of braking release. Therefore, by using the present invention to release the braking system of the platform truck, the deformation and damage of the brake kingpin 3 caused by directly knocking on the brake kingpin 3 can be avoided. After the platform truck is repaired, the brake kingpin 3 can be automatically rebounded by reversely screwing the ejector rod 2 to restore the normal function of the braking system.

[0024] At the same time, after the present invention is installed, it can be left on the tire without being removed, which is convenient for a single person to operate to quickly release the braking system when the platform truck fails and needs to be evacuated urgently next time, shortening the time required for the platform truck to be evacuated urgently and reducing the probability of causing flight delays.

[0025] See Figure 1 、 Figure 2 , a handle 4 is provided at the right end of the ejector rod 2.

[0026] The handle 4 enables a single person to quickly turn the ejector rod 2 with one hand, thereby improving the convenience of using the present utility model and the efficiency of the emergency evacuation of the platform truck.

[0027] See Figure 2 , a plurality of fixing holes 12 are arranged at the left end of the sleeve 1 at equal circumferential intervals. The number and aperture of the fixing holes 12 are the same as those of the fixing holes 12 on the valve cap of the platform truck tire. The sleeve 1 is installed on the outside of the brake kingpin 3 through the fixing bolts 13 and the fixing holes 12.

[0028] In the existing platform truck, the valve cap is fixed on the tire through a plurality of fixing bolts 13. Therefore, after the valve cap is removed, the sleeve 1 can be conveniently installed on the tire by using the original fixing holes 12 and fixing bolts 13 on the tire for installing the valve cap, thereby facilitating the installation of the present utility model on the tire.

[0029] See Figure 2 , Figure 4 , the ejector rod 2 includes a screw rod 22 and a sliding rod 23. The screw rod 22 has a hollow structure with an open right end, and a threaded section 21 is arranged on the screw rod 22. The sliding rod 23 is arranged to slide left and right inside the screw rod 22, and the handle 4 is fixed to the right end of the sliding rod 23.

[0030] When the present utility model is installed on the platform truck tire and not in use, the handle 4 and the ejector rod 2 extend a relatively long length to the right relative to the tire. When the platform truck moves or the staff passes by the platform truck, there is a risk that the handle 4 and the ejector rod 2 will collide with surrounding objects and the staff, resulting in damage to the handle 4 and the ejector rod 2 and the risk of injury to the staff. Therefore, in the present utility model, the length of the ejector rod 2 is adjusted by moving the sliding rod 23 left and right inside the screw rod 22. When the present utility model is not in use, the sliding rod 23 is inserted into the screw rod 22 to the left to reduce the length of the ejector rod 2, thereby reducing the length that the handle 4 and the ejector rod 2 extend to the right and reducing the risk of the handle 4 and the ejector rod 2 hitting surrounding personnel and goods; when the present utility model is in use, the sliding rod 23 is pulled out of the screw rod 22 to the right to extend the length of the ejector rod 2, thereby facilitating the staff to hold the handle 4 for operation and increasing the depth of the screw rod 22 pushing the brake kingpin 3 to the left, ensuring the function of releasing the braking system.

[0031] See Figure 2 , Figure 3 , two long guide rails 24 arranged symmetrically with the axis of the screw rod 22 as the symmetry axis and two short guide rails 25 arranged symmetrically with the axis of the screw rod 22 as the symmetry axis are arranged in the cavity of the screw rod 22. Two sliders 26 arranged symmetrically with the axis of the sliding rod 23 as the symmetry axis are arranged on the side of the sliding rod 23. The two sliders 26 are slidably arranged in the two long guide rails 24 or the two short guide rails 25 in a matching manner.

[0032] When using the present utility model, pull out the sliding rod 23 to the right to separate the slider 26 from the long guide rail 24, then turn the sliding rod 23 to align the slider 26 with the short guide rail 25 and insert the sliding rod 23 to the left so that the slider 26 slides into and abuts within the short guide rail 25, achieving the extension of the ejector rod 2 and locking the length of the ejector rod 2 to avoid the inconvenience in operation caused by the leftward sliding of the sliding rod 23 when the staff holds the handle 4; after the operation is completed, pull out the sliding rod 23 to the right to separate the slider 26 from the short guide rail 25, then turn the sliding rod 23 to align the slider 26 with the long guide rail 24 and insert the sliding rod 23 to the left so that the slider 26 slides into the long guide rail 24, achieving the shortening of the length of the ejector rod 2. The adjustment method of the length of the ejector rod 2 can be completed with one hand, improving the convenience in operation of the present utility model.

[0033] See Figure 4 A tension spring 5 is connected between the screw rod 22 and the sliding rod 23, and the left and right ends of the tension spring 5 are respectively connected to the left end of the cavity of the screw rod 22 and the left end of the sliding rod 23.

[0034] The tension spring 5 can drive the sliding rod 23 to move leftward relative to the screw rod 22. When the present utility model is not in use, the risk of the sliding rod 23 falling off from the screw rod 22 can be reduced through the tension spring 5. At the same time, when driving the slider 26 to switch positions within the long guide rail 24 and the short guide rail 25, the sliding rod 23 can automatically move leftward under the action of the tension spring 5, improving the convenience in operation of the present utility model.

[0035] See Figure 4 An extension cylinder 14 is provided at the left end of the sleeve 1. The extension cylinder 14 is provided with threads of the same specification as the threaded hole 11, and the extension cylinder 14 is sleeved on the brake kingpin 3.

[0036] The extension cylinder 14 can extend the length of the threaded hole 11, thereby improving the stability when the screw rod 22 moves within the threaded hole 11 and abuts against the brake kingpin 3.

[0037] The above content described in this specification is only an example of the present utility model. Those skilled in the technical field to which the present utility model belongs can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, as long as they do not deviate from the content of this specification of the present utility model or exceed the scope defined by this claim book, they should all fall within the protection scope of the present utility model.

Claims

1. An emergency valve quick-release structure and a manual emergency operation valve, characterized in that: It includes a sleeve and a ejector rod. The sleeve is adaptively fixed to the right side of the brake kingpin of the platform truck tire. A threaded hole penetrating left and right is provided in the sleeve, and the threaded hole is coaxially arranged with the brake kingpin. A threaded section adapted for threaded connection with the threaded hole is provided on the ejector rod.

2. The emergency valve quick-release structure and the manual emergency operation valve according to claim 1, characterized in that: A handle is provided at the right end of the ejector rod.

3. The quick-release structure of the emergency valve and the manual emergency operation valve according to claim 1, characterized in that: A number of fixing holes are provided at the left end of the sleeve, which are evenly distributed in a circumferential manner at equal intervals. The number and aperture of the fixing holes are the same as those of the fixing holes on the valve cap of the platform truck tire. The sleeve is installed on the outside of the brake kingpin through fixing bolts and the fixing holes.

4. The emergency valve quick-release structure and manual emergency operation valve according to claim 1, characterized in that: The ejector rod includes a screw rod and a sliding rod. The screw rod has a hollow structure with an open right end, and the threaded section is provided on the screw rod. The sliding rod is slidably arranged left and right in the screw rod, and the handle is fixed to the right end of the sliding rod.

5. The emergency valve quick-release structure and manual emergency operation valve according to claim 4, characterized in that: Two long guide rails symmetrically arranged with the axis of the screw rod as the symmetry axis, and two short guide rails symmetrically arranged with the axis of the screw rod as the symmetry axis are provided in the cavity of the screw rod. Two sliders symmetrically arranged with the axis of the sliding rod as the symmetry axis are provided on the side of the sliding rod, and the two sliders are slidably arranged in the two long guide rails or the two short guide rails in a matching manner.

6. The emergency valve quick-release structure and the manual emergency operation valve according to claim 4 are characterized in that: A tension spring is connected between the screw rod and the sliding rod, and the left and right ends of the tension spring are respectively connected to the left end of the cavity of the screw rod and the left end of the sliding rod.

7. The quick-release structure of the emergency valve and the manual emergency operation valve according to claim 1, wherein: An extension cylinder is provided at the left end of the sleeve. The extension cylinder is provided with threads of the same specification as the threaded hole, and the extension cylinder is sleeved on the brake kingpin.

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