Locking mechanism for blow test

Abstract

This utility model relates to the field of testing equipment technology, and in particular to a locking mechanism for airflow testing. It includes a locking mechanism and a refueling device. The locking mechanism comprises an oil receiving connector, a probe patch, a lever, a push rod, a locking tongue, a V-shaped spring plate, and a steel wire rope. The oil receiving connector has an internal thread at its rear end for connection and installation with a rear-end measuring element. The oil receiving connector has two push rod guide holes, and the tail end of the oil receiving connector has a lever guide hole for guiding the lever to move forward and slide backward in the elongated hole after it is connected to the guide screw of the push rod. A steel wire rope threading hole is provided on the side wall of the push rod, and elongated holes are symmetrically provided on the V-shaped spring plate. This utility model, through its locking mechanism, can simulate an automatic docking / refueling test device, achieving automatic docking and locking during the refueling / refueling process at real flight speeds, while also allowing for quick manual unlocking after the high-speed airflow is shut off.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a locking mechanism for air blowing tests. Background Technology

[0002] In the field of experimental research on aviation refueling / receiving technology, refueling / receiving docking tests simulating high-speed flight conditions place extremely high demands on the performance of locking mechanisms. Currently, some existing technologies employ mechanical snap-locking mechanisms for refueling / receiving docking simulation tests. These mechanical snaps are manually operated for engagement and disengagement. While this mechanism is simple in structure and low in cost, it can achieve basic docking and securing functions in low-speed or static test environments. However, in simulating high-speed flight tests, this type of mechanism reveals significant shortcomings: firstly, manual operation is inefficient and cannot meet the test requirements for rapid docking and disengagement under high-speed airflow conditions; secondly, under the impact of high-speed airflow, the docking accuracy of the snap-locking structure is difficult to guarantee, easily leading to misalignment or even failure to lock properly, seriously affecting the accuracy and reliability of the test data.

[0003] To address the shortcomings of the aforementioned technologies, we propose a locking mechanism for air blowing tests. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a locking mechanism for air blowing tests.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A locking mechanism for air blowing tests includes a locking mechanism and an oiling device. The locking mechanism includes an oil receiving connector, a probe patch, a lever, a push rod, a locking tongue, a V-shaped spring plate, and a steel wire rope. The oil receiving connector has an internal thread at its rear end, with an M16×1.5 specification, for connection and installation with the rear measuring element. The oil receiving connector has two push rod guide holes, and the tail end of the oil receiving connector has a lever guide hole for guiding the lever to move forward and slide backward in the elongated hole after it is connected to the guide screw of the push rod. The push rod has a steel wire rope threading hole on its side wall, the V-shaped spring plate has symmetrical elongated holes, and the locking tongue has symmetrical steel wire rope riveting holes on its side wall.

[0007] Furthermore, the locking tongue is fixed to the oil receiving connector using a finished pin, and the locking tongue is limited by the side of the probe patch.

[0008] Furthermore, the probe patch is fixed to the oil receiving connector with screws, and the screw head is recessed into the countersunk hole of the probe patch, ensuring that the locking structure has a complete rotating body appearance after assembly, and the mating surface is smooth and without reverse step difference.

[0009] Furthermore, the V-shaped spring sheet is installed on the inner side of the two lock tongues, the steel wire rope passes through the elongated hole of the V-shaped spring sheet, and the V-shaped spring sheet is inserted into the steel wire rope riveting hole on the lock tongue.

[0010] Furthermore, the wire rope is tightened in the naturally open state of the V-shaped spring sheet and riveted to the outside of the locking tongue, and the probe patch side limits the locking tongue and the V-shaped spring sheet.

[0011] Furthermore, the refueling device includes an umbrella body, a refueling connector, a universal joint, and a refueling hose, with the universal joint fixedly connected to the end of the refueling hose.

[0012] Furthermore, the universal head is embedded inside the refueling connector, and the refueling connector is fixedly connected to the umbrella body.

[0013] Compared with related technologies, the locking mechanism for air blowing tests proposed in this utility model has the following beneficial effects:

[0014] In this invention, the locking mechanism for the air-blowing test can simulate an automatic docking / refueling test device, achieving automatic docking and locking during the refueling / refueling process at real flight speeds. After locking and completing the refueling / refueling test, it can be quickly and manually unlocked after the high-speed airflow is turned off, making it convenient to use. Starting the airflow, docking and locking, simulating refueling, turning off the airflow, and quickly unlocking constitute a complete test process. Multiple test processes are completed according to different parameters such as test wind speed and docking speed. The locking mechanism features smooth, precise, and rapid separation, and saves labor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the locking mechanism.

[0016] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0017] Figure 3 Diagram showing the closed state of the locking mechanism;

[0018] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure;

[0019] Figure 5 Diagram of the oil receiving joint for the locking mechanism;

[0020] Figure 6 This is an assembly drawing of the oil receiving joint and push rod of the locking mechanism;

[0021] Figure 7 A three-dimensional schematic diagram of a V-shaped spring sheet;

[0022] Figure 8 Assembly drawing of the V-shaped spring plate for the locking mechanism;

[0023] Figure 9 This is a test structural diagram of the locking mechanism;

[0024] Figure 10 This is a schematic diagram of the refueling device.

[0025] Figure 11 This is a schematic diagram of the oiling / receiving process.

[0026] In the diagram: 1. Locking mechanism; 101. Oil receiving connector; 102. Probe patch; 103. Actuating rod; 104. Push rod; 105. Locking tongue; 106. V-shaped spring plate; 107. Steel wire rope; 108. Internal thread; 109. Actuating rod guide hole; 110. Push rod guide hole; 111. Steel wire rope threading hole; 112. Long strip hole; 113. Steel wire rope riveting hole; 2. Oiling device; 201. Umbrella body; 202. Oiling connector; 203. Universal head; 204. Oiling hose. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Reference Figures 1-11 A locking mechanism for a blower test includes a locking mechanism 1 and an oiling device 2. The locking mechanism 1 includes an oil receiving connector 101, a probe patch 102, a lever 103, a push rod 104, a locking tongue 105, a V-shaped spring plate 106, and a steel wire rope 107. The oil receiving connector 101 has an internal thread 108 at its rear end, the internal thread 108 being of M16×1.5 specification, for connection and installation with the rear measuring element. The oil receiving connector 101 has two push rod guide holes 110, and the tail end of the oil receiving connector 101 has a lever guide hole 109, for guiding the lever 103 to move forward and slide backward in the elongated hole 112 after the guide screw of the push rod 103 is connected to the push rod 104. A wire rope threading hole 111 is provided on the side wall of 104. A long hole 112 is symmetrically provided on the V-shaped spring plate 106. A wire rope riveting hole 113 is symmetrically provided on the side wall of the locking tongue 105. The locking tongue 105 is connected and fixed to the oil receiving connector 101 by a finished pin. The probe patch 102 limits the locking tongue 105 from the side. The V-shaped spring plate 106 is installed on the inner side of the two locking tongues 105. The wire rope 107 passes through the long oval hole of the V-shaped spring plate 106. The V-shaped spring plate 106 is inserted into the wire rope riveting hole 113 on the locking tongue 105. The wire rope 107 is tightened in the naturally open state of the V-shaped spring plate 106 and riveted on the outside of the locking tongue 105. The probe patch 102 limits the locking tongue 105 and the V-shaped spring plate 106 from the side.

[0029] With the above-described configuration, the oil receiving connector 101 in the locking mechanism 1 has two guide holes, one large and one small, for the push rod 104, which are used to guide the push rod 104 in its forward and backward movement within the oil receiving connector 101. A long, narrow guide hole for a lever 103 is designed on the outer circumference of the tail end of the oil receiving connector 101. The lever 103 and the push rod 104 are connected by screws within this long, narrow guide hole. The length of the long, narrow guide hole must meet the guide displacement requirements. In its natural state, the push rod 104 is pushed backward by the elastic force of the V-shaped spring 106. At this time, the lever 103 approaches the rear end of the long, narrow guide hole in the oil receiving connector 101, and the position of the oil receiving connector 101 is as follows: Figure 1 As shown.

[0030] In this method, the refueling device 2 includes an umbrella body 201, a refueling connector 202, a universal joint 203, and a refueling hose 204. The universal joint 203 is fixedly connected to the end of the refueling hose 204. The universal joint 203 is embedded inside the refueling connector 202. The refueling connector 202 is fixedly connected to the umbrella body 201.

[0031] With the above-described setup, refueling device 2 is a common existing device, which will not be described in detail here.

[0032] In this method, the probe patch 102 is connected and fixed to the oil receiving connector 101 with screws, and the screw head is recessed into the countersunk hole of the probe patch 102, ensuring that the locking structure has a complete rotating body appearance after assembly, and the mating surface is smooth and without reverse step difference.

[0033] With the above-mentioned setup, the probe patch 102 and the oil receiving connector 101 in the locking mechanism 1 are designed as a whole. The probe patch 102 is assembled with the oil receiving connector 101 by screws. After assembly, the overall shape is a scaled-down shape of the oil receiving connector 101, ensuring the authenticity of the shape of the oil receiving connector 101.

[0034] The working principle of the locking mechanism for the air blowing test provided by this utility model is as follows:

[0035] During high-speed wind blowing in the wind tunnel test chamber, the umbrella of the refueling device 2 is suspended in the air under the action of the refueling hose, and swings to a certain extent with the fluctuation of wind speed. The locking mechanism 1 adjusts the refueling docking posture through the three-coordinate displacement device in the wind tunnel test chamber, that is, the oil receiving joint 101 of the locking mechanism 1 docks with the umbrella 201 of the refueling device 2. After the two are aligned, the locking mechanism 1 quickly docks with the refueling device 2 at a preset forward speed. During the rapid docking process, the head of the oil receiving joint 101 of the locking mechanism 1 is gradually inserted into the oil receiving joint 202 of the refueling device 2. The guide part of the oil receiving joint 202 compresses the locking tongue 105 of the locking mechanism 1 into the oil receiving joint 101. After the oil receiving joint is fully inserted, the head of the oil receiving joint 101 docks with the oil inlet of the universal head 203 of the refueling device 2. At this time, the locking tongue 105 of the locking mechanism 1 opens under the elastic force of the V-shaped spring plate 106. During the refueling process, the locking mechanism 1 and the refueling device 2 are in a locked state.

[0036] When a certain pushing force is applied to the oil receiving end of the oil receiving joint by the actuating rod 103, the push rod 104 will be moved towards the oil receiving end of the oil receiving joint 101, thereby simultaneously pushing the V-shaped spring plate 106 forward. The push rod 104 will tighten the wire rope 107, and at the same time drive the locking tongue 105 to press the V-shaped spring plate 106 together and tighten inward until the locking tongue 105 is tightened into the oil receiving joint 101, thereby realizing the rapid unlocking of the locking mechanism 1 and the oiling device 2. The unlocking process is carried out after the wind tunnel test chamber stops blowing. After unlocking, the locking mechanism 1 returns to its natural state by the elasticity of the V-shaped spring plate 106.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A locking mechanism for a blowing test, characterized in that, The device includes a locking mechanism (1) and an oiling device (2). The locking mechanism (1) includes an oil receiving connector (101), a probe patch (102), a lever (103), a push rod (104), a locking tongue (105), a V-shaped spring plate (106), and a steel wire rope (107). The oil receiving connector (101) has an internal thread (108) at its rear end. The oil receiving connector (101) is provided with two push rod guide holes (110). The oil receiving connector (101) is provided with a lever guide hole (109) at its tail end. The push rod (104) has a steel wire rope threading hole (111) on its side wall. The V-shaped spring plate (106) has symmetrically provided elongated holes (112). The locking tongue (105) has symmetrically provided steel wire rope riveting holes (113) on its side wall.

2. The locking mechanism for the air blowing test according to claim 1, characterized in that, The locking tongue (105) is connected and fixed to the oil receiving connector (101) by a finished pin, and the probe patch (102) limits the locking tongue (105) on the side.

3. The locking mechanism for the air blowing test according to claim 1, characterized in that, The probe patch (102) is fixed to the oil receiving connector (101) by screws, and the screw head is recessed into the countersunk hole of the probe patch (102).

4. The locking mechanism for the air blowing test according to claim 1, characterized in that, The V-shaped spring plate (106) is installed inside the two locking tongues (105), the wire rope (107) passes through the elongated hole of the V-shaped spring plate (106), and the V-shaped spring plate (106) is inserted into the wire rope riveting hole (113) on the locking tongue (105).

5. The locking mechanism for the blowing test according to claim 1, characterized in that, The wire rope (107) is tightened in the naturally open state of the V-shaped spring sheet (106) and riveted on the outside of the locking tongue (105). The probe patch (102) limits the locking tongue (105) and the V-shaped spring sheet (106) on the side.

6. The locking mechanism for the air blowing test according to claim 1, characterized in that, The refueling device (2) includes an umbrella body (201), a refueling connector (202), a universal joint (203), and a refueling hose (204), with the universal joint (203) fixedly connected to the end of the refueling hose (204).

7. The locking mechanism for the air blowing test according to claim 6, characterized in that, The universal head (203) is embedded inside the refueling connector (202), and the refueling connector (202) is fixedly connected to the umbrella body (201).

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