Landing leg connecting structure and launching vehicle

Abstract

The utility model provides a supporting leg connecting structure and a launching vehicle. The supporting leg connecting structure comprises a supporting leg flange, two semicircular hoops and two semicircular bottom plates. The supporting leg flange is sleeved on the supporting leg; the two semicircular hoops are respectively arranged on one end face, the inner wall of each semicircular hoop is provided with a circumferential positioning groove, the positioning grooves are used for facing each other and cooperatively holding the supporting leg and the supporting leg flange, the two semicircular hoops are connected in the direction perpendicular to the axis of the supporting leg, and one of the two semicircular hoops can be fixedly connected with the supporting arm; the two semicircular bottom plates face each other, are in one-to-one correspondence with the two semicircular hoops, are used for axially positioning the supporting leg flange in a matched manner, and are connected to the corresponding semicircular hoops in the direction parallel to the axis of the supporting leg on the end faces of the two semicircular hoops respectively. The vehicle-mounted device is simple in structure, convenient to disassemble and assemble, high in assembly efficiency, capable of being fastened in the horizontal direction and the vertical direction, capable of bearing large vibration impact force generated when the vehicle-mounted device is launched, and high in reliability.

Description

Technical Field

[0001] The utility model belongs to the technical field of support leg structures, and in particular relates to a support leg connection structure and a launch vehicle comprising the support leg connection structure. Background Art

[0002] With the rapid development of industrialization, outriggers are widely used in various industrial production activities, especially in various engineering vehicles. These outriggers can withstand the weight of the vehicle and provide stable support, featuring flexible expansion and contraction, and a large load capacity. The launch vehicle's support arm is connected to the vehicle's chassis frame at one end and to the outrigger connection structure at the other end, thus connecting the outrigger to the vehicle.

[0003] As the weight of the launcher and the impact force of the launch continue to increase, the requirements for the launch vehicle's outriggers to support the weight are becoming increasingly higher. If the outrigger connection structure does not meet the strength requirements, it will cause damage to the structural components and the launch vehicle to overturn, resulting in unsafe accidents.

[0004] The existing leg connection structure is as follows: two leg flanges are coaxially sleeved along the leg, two mounting plates are welded to the support arm at positions corresponding to the flanges, and both mounting plates and semicircular clamps are provided with positioning grooves for the leg flanges. The two leg flanges are fitted with the corresponding mounting plates and semicircular clamps, and bolts are used to connect the two semicircular clamps to the mounting plates in a direction perpendicular to the leg axis, thereby connecting the leg to the support arm and the launch vehicle. This structure has the following problems:

[0005] 1. There are two mating surfaces between the leg flange and the support arm during installation. Positioning errors and welding deformation occur during the welding process of the mounting plate, which makes it difficult to assemble the leg flange and the support arm, affecting assembly efficiency.

[0006] 2. The mounting plate and the clamp are only fastened in the direction perpendicular to the legs, resulting in the connection structure being able to withstand less vibration impact force and low reliability. Utility Model Content

[0007] The purpose of the utility model is to solve the problems of the prior art in that the support leg connection structure is difficult to assemble, has low vibration impact resistance, and has low reliability, and provides a support leg connection structure and a launch vehicle including the connection structure.

[0008] To achieve the above objectives, the technical solutions provided by this utility model are:

[0009] A support leg connection structure is used to connect the support leg to the support arm of the launch vehicle, including a support leg flange, two semicircular clamps, and two semicircular bottom plates;

[0010] The leg flange is sleeved on the leg;

[0011] The two semicircular clamps are each provided with a circumferential positioning groove on the inner wall at one end surface, and are used to face each other and cooperate to clamp the support leg and the support leg flange. The two semicircular clamps are connected in a direction perpendicular to the axis of the support leg, and one of the two semicircular clamps can be fixedly connected to the support arm;

[0012] The two semicircular base plates face each other and are arranged one-to-one with the two semicircular clamps, which are used to cooperate in axial positioning of the support leg flange, and are connected to the corresponding semicircular clamps at the end faces of the two semicircular clamps in a direction parallel to the axis of the support leg.

[0013] Further, the leg flange is welded to the leg.

[0014] Furthermore, the two semicircular hoops are each provided with a radially outwardly protruding joint portion at the joint surface, and the joint portion extends along the axial direction of the leg and is used to fit and pass through the fastener to achieve the connection between the two semicircular hoops.

[0015] Furthermore, the two semicircular clamps are each provided with a circumferential flange protruding radially outward at the end surface, which is used to respectively fit with the two semicircular base plates and pass through the fasteners to achieve the connection between the two semicircular base plates and the two semicircular clamps.

[0016] Furthermore, threaded holes are evenly arranged on the joints of the two semicircular clamps for connecting fasteners.

[0017] Furthermore, threaded holes are evenly arranged circumferentially on the flanges of the two semicircular clamps for connecting fasteners.

[0018] Furthermore, through holes are evenly arranged circumferentially on the two semicircular bottom plates for passing fasteners.

[0019] A launching vehicle comprises a vehicle body, a plurality of legs and a supporting arm, and also comprises the above-mentioned leg connecting structures corresponding one to one with the legs, wherein each leg is connected to the supporting arm via the leg connecting structure.

[0020] The advantages of the utility model are:

[0021] 1. The leg connection structure of the present invention features a leg flange on the leg. The leg flange is secured to the circumferential groove on the inner wall of the hoop using two semicircular clamps and two semicircular base plates at the end faces of the clamps. The two semicircular clamps are connected perpendicular to the leg axis, while the semicircular base plates and clamps are connected parallel to the leg axis. Therefore, the connection structure of the present invention is simple, easy to assemble and disassemble, and highly efficient. It is also secure in both horizontal and vertical directions, can withstand the significant vibration and impact forces generated during vehicle-mounted equipment launches, and is highly reliable, with proven results.

[0022] 2. Compared with the existing launch vehicles, the launch vehicle of the present invention is provided with the above-mentioned support leg connection structure, so that the support legs and support arms of the launch vehicle can be connected through a simple structure, and are easy to assemble and disassemble. It can also withstand the greater vibration impact force when the vehicle-mounted equipment is launched, thereby improving the reliability of the launch vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or other features and advantages of the present invention will become more easily understood through the following description with reference to the accompanying drawings, which are not drawn to scale and in which some features are exaggerated or reduced to show details of specific components. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the leg connection structure of the utility model in use;

[0025] Figure 2 This is a schematic diagram of the installation of the support leg flange in the utility model;

[0026] Figure 3 It is a schematic diagram of the semicircular clamp in the utility model;

[0027] Figure 4 It is a schematic diagram of the semicircular bottom plate in the utility model.

[0028] In the figure: 1-support leg flange; 2-semicircular clamp, 21-joining part, 211-threaded hole on the joint, 22-flange, 221-threaded hole on the flange, 23-positioning groove; 3-semicircular bottom plate, 31-through hole; 4-first bolt; 5-second bolt; 100-support leg; 200-support arm of the launch vehicle. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to the accompanying drawings by means of exemplary embodiments of the present invention. It should be noted that the following detailed description of the present invention is only for the purpose of illustration and is not intended to limit the present invention.

[0030] The utility model provides a support leg connection structure and a launching vehicle comprising the support leg connection structure. The support leg connection structure is used for connecting the support leg to a supporting arm of the launching vehicle.

[0031] First, the support leg connection structure provided by the utility model is described.

[0032] Reference Figure 1 and Figure 2 As an exemplary embodiment of the present invention, the support leg connection structure includes a support leg flange 1, two semicircular clamps 2, and two semicircular bottom plates 3. The connection structure can connect the support leg 100 to the support arm 200 of the launch vehicle.

[0033] like Figure 2As shown, the leg flange 1 is sleeved on the leg 100 and can be welded or screwed to the leg. Welding is preferably used to facilitate connection.

[0034] The two semicircular clamps 2 are each provided with a circumferential positioning groove 23 on the inner wall at one end face. The two semicircular clamps 2 are arranged facing each other and cooperate to clamp the support leg 100 and the support leg flange 1. Specifically, the semi-cylindrical surfaces of the two clamps facing each other are in contact with the support leg 100, the top surfaces of the positioning grooves 23 facing each other are in contact with the top surface of the support leg flange 1, and the circumferential wall surface of the positioning grooves 23 is in contact with the outer circumferential surface of the support leg flange 1, thereby clamping both the support leg and the support leg flange thereon. The two semicircular clamps 2 are connected in a direction perpendicular to the axis of the support leg 100, in particular, they are connected by fasteners such as the first bolt 4. One of the two semicircular clamps 2 can be fixedly connected to the support arm 200, and the support arm 200 can be connected by welding. One end of the support arm 200 is an arc-shaped structure, which can be welded to the outer wall 2 of the semicircular clamp.

[0035] The two semicircular bottom plates 3 face each other and are arranged in a one-to-one correspondence with the two semicircular clamps 2, and are used to cooperate in axial positioning of the leg flange 1. They are connected to the corresponding semicircular clamp 2 at their respective end faces, that is, at the end faces where the positioning grooves 23 are located, in a direction parallel to the axis of the leg 100, and are particularly connected by fasteners such as second bolts 5. Specifically, the semicircular bottom plate 3 is in contact with the bottom surface of the leg flange 1. Therefore, the top surface and bottom surface of the leg flange 1 are respectively in contact with the semicircular clamp 2 and the semicircular bottom plate 3, thereby being axially positioned.

[0036] Combine Figure 3 In some embodiments, the two semicircular clamps 2 are each provided with a radially outwardly protruding joint portion 21 at the joint surface. The joint portion 21 extends along the axial direction of the leg and is used to fit and pass through a fastener, such as a first bolt 4, to achieve the connection between the two semicircular clamps 2. Threaded holes 211 can be evenly distributed on the joint portions 21 of the two semicircular clamps 2 for connecting the fasteners.

[0037] In addition, the two semicircular clamps 2 can each be provided with a radially outwardly protruding circumferential flange 22 at the end surface where the positioning groove 23 is located, which is used to respectively fit with the two semicircular base plates 3 and pass through a fastener, such as a second bolt 5, to achieve the connection between the two semicircular base plates 3 and the two semicircular clamps 2. The flanges 22 of the two semicircular clamps 2 can each be evenly arranged with threaded holes 221 around the circumference for connecting fasteners.

[0038] Combine Figure 4 The two semicircular bottom plates 3 can be respectively provided with through holes 31 evenly arranged circumferentially for passing fasteners, such as second bolts 5, thereby connecting the semicircular bottom plates 3 to the corresponding semicircular clamps 2, thereby fastening the support leg flange 1, and further completing the connection between the support leg 100 and the support arm 200.

[0039] The working process of the support leg connection structure provided by the utility model is as follows:

[0040] Step 1: Weld or screw the leg flange 1 to the leg 100;

[0041] Step 2: Weld a semicircular hoop 2 to the support arm 200;

[0042] Step 3: Fit the cylindrical surface of the leg flange 1 to the positioning groove surface of the semicircular clamp 2 connected to the support arm, and fit the top surface to the top surface of the groove;

[0043] Step 4: Fit the cylindrical surface of the leg flange 1 to the positioning groove surface of the other semicircular clamp 2, and fit the top surface to the top surface of the groove;

[0044] Step 5: Connect the two semicircular clamps 2 in the horizontal direction, that is, perpendicular to the axis of the leg, using a plurality of first bolts 4;

[0045] Step 6: Fit a semicircular bottom plate 3 to the bottom surface of the leg flange 1, and connect it to the bottom surface of a semicircular clamp 2 in the vertical direction, that is, in the direction parallel to the leg axis, through multiple second bolts 5;

[0046] In step 7, the other semicircular base plate 3 is aligned with the bottom surface of the leg flange 1 and vertically connected to the bottom surface of the other semicircular clamp 2 using multiple second bolts 5. This completes the connection between the leg 100 and the launch vehicle's support arm 200. This utility model only includes two types of fixings and connecting parts, requiring only three parts, making the entire connection structure assembly process short and time-saving.

[0047] As described above, the present invention provides a leg flange on the leg, and utilizes two semicircular clamps and two semicircular base plates at the end faces of the clamps to secure the leg flange to the circumferential groove on the inner wall of the clamps. The two semicircular clamps are connected in a direction perpendicular to the axis of the leg, and the semicircular base plates and the clamps are connected in a direction parallel to the axis of the leg. Therefore, the connection structure of the present invention is simple in structure, easy to assemble and disassemble, and has high assembly efficiency. It is also fastened in both horizontal and vertical directions, can withstand the large vibration impact force generated by vehicle-mounted equipment during launch, has high reliability, and has been verified to have good results through testing.

[0048] Next, the launching vehicle provided by the utility model is described.

[0049] The launch vehicle, as an exemplary embodiment of the present invention, includes a vehicle body, a plurality of legs, and a support arm, and further includes the aforementioned leg connection structure corresponding one to each leg, each leg being connected to the support arm via the leg connection structure. The specific connection structure can be found in the description above.

[0050] Compared with the existing launch vehicles, the launch vehicle of the present invention is provided with the above-mentioned support leg connection structure, so that the support legs and support arms of the launch vehicle can be connected through a simple structure, and are easy to assemble and disassemble. It can also withstand the greater vibration impact force when the vehicle-mounted equipment is launched, thereby improving the reliability of the launch vehicle.

[0051] Finally, it should be noted that the features mentioned and / or illustrated in the above description of the exemplary embodiments of the present invention may be combined in the same or similar manner into one or more other embodiments, and may be combined with or replace the features of other embodiments. The technical solutions obtained by such combination or replacement shall also be deemed to be included in the scope of protection of the present invention.

Claims

1. A support leg connection structure for connecting a support leg to a support arm of a launch vehicle, characterized in that: It includes support leg flange, two semicircular clamps, and two semicircular bottom plates; The support leg flange is sleeved on the support leg; The two semicircular hoops are each provided with a circumferential positioning groove on the inner wall at one end surface, and are used to face each other and cooperate to hold the support leg and the support leg flange tightly. The two semicircular hoops are connected in a direction perpendicular to the axis of the support leg, and one of the two semicircular hoops can be fixedly connected to the support arm; The two semicircular bottom plates face each other and are arranged one-to-one with the two semicircular hoops, and are used to cooperate in axial positioning of the support leg flange, and are connected to the corresponding semicircular hoops at the end faces of each of the two semicircular hoops in a direction parallel to the axis of the support leg.

2. The leg connection structure according to claim 1, characterized in that: The leg flange is welded to the leg.

3. The leg connection structure according to claim 1 or 2, characterized in that: The two semicircular hoops are each provided with a radially outwardly protruding joint portion at the joint surface. The joint portion extends along the axial direction of the leg and is used to fit and pass through the fastener to achieve the connection of the two semicircular hoops.

4. The leg connection structure according to claim 1 or 2, characterized in that: The two semicircular hoops are each provided with a circumferential flange protruding radially outward at the end surface, which is used to respectively fit with the two semicircular bottom plates and pass through fasteners to achieve the connection between the two semicircular bottom plates and the two semicircular hoops.

5. The leg connection structure according to claim 3, characterized in that: Threaded holes are evenly arranged on the joints of the two semicircular hoops for connecting fasteners.

6. The leg connection structure according to claim 4, characterized in that: The flanges of the two semicircular clamps are respectively and evenly arranged with threaded holes in a circumferential direction for connecting fasteners.

7. The leg connection structure according to claim 6, characterized in that: The two semicircular bottom plates are respectively provided with through holes evenly arranged in a circumferential direction for passing fasteners.

8. A launching vehicle, characterized in that: The vehicle comprises a vehicle body, a plurality of legs and a support arm, and further comprises a leg connection structure according to any one of claims 1 to 7 corresponding to the legs one by one, and each leg is connected to the support arm through the leg connection structure.

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