A control mechanism with intermittent operation mode

Abstract

This invention discloses a control mechanism with an intermittent operation mode, comprising a fixed component, a handle component, a central shaft component, a spring, and a limiting block. The fixed component includes a positioning shell with a groove at its top for accommodating the sliding of the handle component. The positioning shell also includes a limiting block with a limiting hole containing staggered upper and lower locking teeth. The handle component includes a handle body and a spring support block, which includes a rod and a rod seat. A limiting shaft is provided at the connection between the handle body and the rod, and the limiting shaft has limiting locking teeth that engage with the limiting hole. The central shaft component has a guide groove, and a rotating shaft is located at its lower part. Locking teeth are provided in the limiting hole within the groove of the limiting block. The locking teeth of the limiting shaft engage with the staggered locking teeth of the limiting hole in a curved motion, allowing the control of the aircraft flaps to shift gears step by step, preventing skipping gears and reducing misoperation. The handle component and the central shaft component pre-compress the spring, improving the feel of pushing and pulling the handle.

Description

Technical Field

[0001] This invention relates to the field of aircraft control technology, and more particularly to a control mechanism with an intermittent control mode. Background Technology

[0002] Most aircraft flap and slat controls are gearless. While this method allows for arbitrary switching within the specified flap and slat angles, it is prone to pilot error or improper operation, and the pilot's control over the flap and slat angles is not easily accurate. Due to the inconsistency of control force during mass production of gearless controls, the requirements for pilots on each aircraft are relatively high, increasing the difficulty and demands of pilot operation, increasing the difficulty and time of pilot training, and impacting the time and financial costs of training pilots.

[0003] To address the above issues and reduce the difficulty of flap and slat control and the requirements on pilots, a control structure with an intermittent control mode is needed. Summary of the Invention

[0004] The purpose of this invention is to provide a control mechanism with an intermittent operation mode.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A control mechanism with an intermittent operation mode is characterized by comprising a fixed component, a handle component, a central shaft component, a spring, and a limiting block.

[0007] The fixing component includes a positioning shell, the top of which is provided with a sliding groove to accommodate the sliding of the handle component, a limiting block is fixedly provided on the upper part of the positioning shell, the limiting block is provided with an arc-shaped limiting hole, the upper end of the limiting hole is provided with several upper teeth, the lower end of the limiting hole is provided with several lower teeth, the upper teeth and lower teeth are staggered, and a connecting groove is fixedly provided on the lower part of the positioning shell.

[0008] The handle component includes a handle body and a spring support block. The lower part of the handle body is inserted into the upper part of the spring support block. The spring support block includes an integrally formed rod and a rod seat. A limiting shaft is provided through the connection between the handle body and the rod in the front-rear direction. A limiting tooth is provided at the rear end of the limiting shaft. The limiting tooth is positioned by a clearance fit with the lower tooth. A rolling ring is sleeved on the outer side of the limiting shaft. The rolling ring is located in front of the limiting tooth. The rolling ring is positioned by a clearance fit with the upper tooth. Guide sliders are provided on the front and rear sides of the rod seat. A spring rod is fixedly mounted on the guide slider in the vertical direction. A spring and a limiting block are sleeved on the outer side of the spring rod. The limiting block is located above the spring.

[0009] The upper part of the central shaft component is provided with a guide groove, and the left and right sides of the guide groove are provided with blocks. The limiting block is fixedly connected to the upper part of the front and rear ends of the block. The spring support block is limited by the spring and slides up and down in the guide groove.

[0010] A rotating shaft is provided through the lower part of the central shaft component, with the middle part of the rotating shaft rotatably connected to the central shaft component. A connecting bearing is sleeved on the rear part of the rotating shaft, and the connecting bearing is fixedly connected to the connecting groove.

[0011] Furthermore, the upper end of the limiting hole is provided with two upper locking teeth, and the lower end of the limiting hole is provided with three lower locking teeth.

[0012] Furthermore, the front opening at the upper end of the positioning housing is provided with a mounting groove, and a connecting block is provided at the front end of the mounting groove. The connecting block is fixedly connected to the mounting groove by countersunk screws.

[0013] Furthermore, a retaining ring is snapped onto the outer side of the connecting bearing, and the retaining ring is fixedly connected to the connecting groove by a countersunk screw.

[0014] Furthermore, an upper cylindrical pin is provided through the connection between the handle body and the rod body in the left-right direction, and the limiting shaft is provided with a pin groove to accommodate the upper cylindrical pin passing through, and the upper cylindrical pin fixes the limiting shaft.

[0015] Furthermore, the limiting shaft includes a limiting main shaft, a rolling shaft, and limiting teeth integrally formed from front to back. The outer diameter of the rolling shaft is larger than the outer diameter of the limiting main shaft. The rolling ring is sleeved on the outside of the rolling shaft, and the limiting ring is sleeved on the outside of the limiting main shaft. The limiting ring restricts the forward movement of the rolling ring.

[0016] Furthermore, the guide block has a flat-head hole in the center, the spring rod is inserted into the flat-head hole, and lower cylindrical pins are inserted on the front and rear sides of the guide block. The lower end of the spring rod has a pin groove to accommodate the lower cylindrical pins, and the lower cylindrical pins fix the spring rod.

[0017] Furthermore, the central shaft component includes a rectangular rod and a bearing seat that are connected vertically as one piece. The upper part of the rectangular rod is provided with a guide groove, and the bearing seat has a cylindrical structure along the front-back direction. The center of the bearing seat is provided with a hole that mates with the rotating shaft.

[0018] Furthermore, the rotating shaft has a cylindrical structure and includes a first step, a second step, a third step, a fourth step, and a fifth step arranged sequentially from front to back. The outer diameter of the fourth step is larger than the outer diameter of the third step, and the third step is connected to the shaft seat.

[0019] Furthermore, the bearing seat and the third step are provided with a cylindrical pin through them in the left-right direction.

[0020] This invention features a locking tooth in the limiting hole on the inner groove surface of the limiting block, and the limiting hole and limiting shaft move together to realize gear shifting of the aircraft flap and slat control mechanism. Furthermore, the locking tooth of the limiting shaft and the locking tooth of the limiting hole move in a curved motion, allowing the aircraft flap and slat control to shift gears step by step without skipping gears, thus reducing misoperation. The handle component and the central shaft component pre-compress the spring, improving the feel of pushing and pulling the handle. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall disassembled structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of the fixing component of the present invention;

[0023] Figure 3 This is a schematic diagram of the disassembled structure of the handle component of the present invention;

[0024] Figure 4 This is a schematic diagram of the disassembled structure of the central shaft component of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the limiting block of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the limiting shaft of the present invention;

[0027] Figure 7 This is a schematic diagram of gear switching according to the present invention;

[0028] Figure 8 This is a flowchart of the gear switching process of the present invention;

[0029] Figure 9 This is another flowchart of the gear switching process of the present invention.

[0030] Figure label:

[0031] 1. Fixed components

[0032] 101 Limiting block, 102 Positioning housing, 103 Connecting block, 104 First countersunk screw,

[0033] 105 Spherical head screw, 106 Locating pin, 107 Limiting hole, 108 Connecting bearing,

[0034] 109 Second countersunk screw, 110 Retaining ring,

[0035] 2. Handle components

[0036] 201 Handle body, 202 Limiting ring, 203 Rolling ring, 204 Limiting shaft,

[0037] 205 Spring rod, 206 Lower cylindrical pin, 207 Spring support block, 208 Upper cylindrical pin,

[0038] 3. Spring, 4. Limiting block, 5. Cylindrical head screw, 6. Central shaft assembly

[0039] 601 Rotating shaft, 602 Retaining ring, 603 Central shaft, 604 Shaft seat cylindrical pin. Detailed Implementation

[0040] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] This invention discloses a control mechanism with an intermittent control mode, such as... Figure 1 As shown, it includes a fixing component 1, a handle component 2, a central shaft component 6, a spring 3, and a limiting block 4.

[0042] like Figure 2 As shown, the main body of the fixing component 1 is the positioning shell 102. The top of the positioning shell 102 is provided with a sliding groove for the installation and movement of the handle component 2. The left and right sides of the positioning shell 102 are provided with grooves for assembling other parts or for weight reduction. After the handle component 2 is installed, the connecting block 103 is inserted into the corresponding interface of the positioning shell 102 and fixed by the first countersunk screw 104.

[0043] like Figure 5 As shown, the limiting block 101 is installed on the upper part of the positioning housing 102 by the positioning pin 106, and then pressed with four slotted and perforated spherical cylindrical head screws 105. The limiting block 101 is provided with an arc-shaped limiting hole 107. The upper end of the limiting hole 107 is provided with several upper teeth, and the lower end of the limiting hole 107 is provided with several lower teeth. The upper teeth and lower teeth are staggered, and a triangular groove is provided between adjacent lower teeth.

[0044] The connecting bearing 108 is installed in the groove at the lower part of the positioning housing 102 and is clamped to the positioning housing 102 by the retaining ring 110. The bearing retaining ring 110 is fixed by three evenly distributed second countersunk screws 109.

[0045] like Figure 3 As shown, the handle component 2 includes a handle body 201 and a spring support block 207. The upper part of the spring support block 207 is a rod with two vertical parallel planes. A limiting shaft 204 is provided through the connection between the handle body 201 and the spring support block 207 in the front-back direction.

[0046] like Figure 6As shown, the limiting shaft 204 includes a limiting main shaft, a rolling shaft, and a limiting tooth integrally formed from front to back. The outer diameter of the rolling shaft is larger than the outer diameter of the limiting main shaft. The rolling ring 203 is sleeved on the outside of the rolling shaft. The limiting ring 202 is sleeved on the outside of the limiting main shaft. The limiting ring 202 restricts the forward movement of the rolling ring. The limiting tooth has a triangular end face, and the triangular end face is positioned in a clearance fit with the lower tooth.

[0047] The side of the rod is provided with an upper cylindrical pin 208 for fixing the limiting shaft 204, and the rod is provided with a pin groove to accommodate the upper cylindrical pin 208 passing through.

[0048] The upper end of the rod is provided with a step that mates with the handle body 201. The groove at the bottom of the handle body 201 is inserted into the step of the rod. The limiting shaft 204 is first assembled with the limiting ring 202 and the rolling ring 203, and then inserted into the limiting shaft hole corresponding to the spring support block 207 and the handle body 201, and fixed by the upper cylindrical pin 208.

[0049] The lower part of the spring support block 207 has two guide blocks. The guide blocks are symmetrical about the central axis of the rod. The center of the guide block has a flat hole for inserting the spring rod 205. The two sides of the guide block have pin grooves for fixing the spring rod 205. The spring rod 205 is fixed in the corresponding hole on the spring support block 207 by the lower cylindrical pin 206.

[0050] like Figure 4 As shown, the central shaft component 6 includes a rotating shaft 601 and a central shaft 603. The upper part of the central shaft 603 is a rectangular rod, and the upper part of the rectangular rod is provided with a guide groove that cooperates with the lower end of the spring support block 207. There are stop blocks on the left and right sides of the guide groove, and the upper end of the stop block is provided with four screw holes to fix the limiting block 4. The lower part of the central shaft 603 is a cylindrical bearing seat, and the center of the bearing seat is provided with a circular hole that cooperates with the rotating shaft 601. There are six evenly distributed weight reduction holes on the outside of the circular hole.

[0051] The rotating shaft 601 includes a first step, a second step, a third step, a fourth step, and a fifth step arranged sequentially from front to back. The outermost first and second steps are provided with keyways. The third step is for transition purposes and is connected to the central shaft 603. A cylindrical pin 604 is provided through the shaft seat and the third step in the left-right direction. The fourth step is sleeved to connect the bearing 108. The fourth step still has the size to assemble the retaining ring 602, which presses the bearing 108, the retaining ring 602, and the shaft seat arranged from back to front together.

[0052] During assembly, the bottom end of the handle component 2 is first inserted into the guide groove of the central shaft component 6, and then the spring 3 is installed on the spring rod 205 of the handle component. After the limiting block 4 is inserted into the spring rod 205, it is fixed to the central shaft component 6 by the slotted and perforated spherical head screw 5. The central shaft component 6 is fixed to the inner ring of the bearing 108 on the fixed component by interference fit. The connecting block 103 is assembled to the fixed component 1 by screw 104. At this point, the operation mechanism is assembled.

[0053] The operating mechanism of this invention has four positions. The limiting teeth are in clearance fit with the upper and lower locking teeth. The limiting teeth can swing up and down along a W-shaped path to slide left and right. See [link to relevant documentation]. Figure 7 .

[0054] During the operation, such as Figure 8 As shown, it includes the following steps:

[0055] 1) Handle component 2 is in the starting position, first gear;

[0056] 2) Pull the handle component 2 until the rolling shaft 203 contacts the upper groove surface of the limiting block 101. The handle component 1 and the central shaft component 6 compress the spring 3 to generate pressure. The handle component 2 is pulled up and the first gear is engaged.

[0057] 3) Push the handle component 2 forward until the triangular end face of the limit shaft 203 contacts the upper locking tooth, and the push of the handle component 2 is completed, and the second gear is engaged;

[0058] 4) Release the handle component 2, and under the conditions of the restoring force of the spring 3 and the limiting surface of the inner groove of the limiting block 101, the handle component 2 returns to the starting position of the second gear.

[0059] 5) The handle component 2 is reset to the starting position of the second gear;

[0060] 6) Repeat the above lifting-forward movement, the handle part 2 moves clockwise three times, the handle part 2 rotates to the end position, and enters the fourth gear.

[0061] When it is necessary to shift back to the previous gear, such as Figure 9 As shown, it includes the following steps:

[0062] 1) Handle component 2 is in the starting position, fourth gear;

[0063] 2) Pull the handle component 2 until the rolling shaft 203 contacts the upper groove surface of the limiting block 101, and the pulling of the handle component 2 is complete;

[0064] 3) The handle component 2 is pulled back until the triangular end face of the limit shaft 203 contacts the locking teeth on the limit block 101, and the pull of the handle component 2 ends.

[0065] 4) Release the handle component 2, and under the conditions of the restoring force of the spring 3 and the limiting surface of the inner groove of the limiting block 101, the handle component 2 returns to the starting position of the third gear.

[0066] 5) The handle component 2 is reset to the starting position of the third gear;

[0067] 6) Repeat the above lifting-pulling action. The handle part 2 moves counterclockwise three times. The handle part 2 rotates to the end position and enters the first gear.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control mechanism with an intermittent control mode, characterized in that, It includes a fixed component, a handle component, a central shaft component, a spring, and a limit block. The fixing component includes a positioning shell, the top of which is provided with a sliding groove to accommodate the sliding of the handle component, a limiting block is fixedly provided on the upper part of the positioning shell, the limiting block is provided with an arc-shaped limiting hole, the upper end of the limiting hole is provided with several upper teeth, the lower end of the limiting hole is provided with several lower teeth, the upper teeth and lower teeth are staggered, and a connecting groove is fixedly provided on the lower part of the positioning shell. The handle component includes a handle body and a spring support block. The lower part of the handle body is inserted into the upper part of the spring support block. The spring support block includes an integrally formed rod and a rod seat. A limiting shaft is provided through the connection between the handle body and the rod in the front-rear direction. A limiting tooth is provided at the rear end of the limiting shaft. The limiting tooth is positioned by a clearance fit with the lower tooth. A rolling ring is sleeved on the outer side of the limiting shaft. The rolling ring is located in front of the limiting tooth. The rolling ring is positioned by a clearance fit with the upper tooth. Guide sliders are provided on the front and rear sides of the rod seat. A spring rod is fixedly mounted on the guide slider in the vertical direction. A spring and a limiting block are sleeved on the outer side of the spring rod. The limiting block is located above the spring. The upper part of the central shaft component is provided with a guide groove, and the left and right sides of the guide groove are provided with blocks. The limiting block is fixedly connected to the upper part of the front and rear ends of the block. The spring support block is limited by the spring and slides up and down in the guide groove. A rotating shaft is provided through the lower part of the central shaft component, with the middle part of the rotating shaft rotatably connected to the central shaft component. A connecting bearing is sleeved on the rear part of the rotating shaft, and the connecting bearing is fixedly connected to the connecting groove.

2. The control mechanism with intermittent operation mode according to claim 1, characterized in that, The upper end of the limiting hole is provided with two upper locking teeth, and the lower end of the limiting hole is provided with three lower locking teeth.

3. The control mechanism with intermittent operation mode according to claim 1, characterized in that, The upper end of the positioning housing has a front opening with a mounting groove, and the front end of the mounting groove has a connecting block. The connecting block is fixedly connected to the mounting groove by countersunk screws.

4. The control mechanism with intermittent operation mode according to claim 1, characterized in that, A retaining ring is snapped onto the outer side of the connecting bearing, and the retaining ring is fixedly connected to the connecting groove by a countersunk screw.

5. The control mechanism with intermittent operation mode according to claim 1, characterized in that, The upper cylindrical pin is provided through the connection between the handle body and the rod body in the left and right direction. The limiting shaft is provided with a pin groove to accommodate the upper cylindrical pin. The upper cylindrical pin fixes the limiting shaft.

6. The operating mechanism with intermittent operation mode according to claim 1 or 5, characterized in that, The limiting shaft includes a limiting main shaft, a rolling shaft, and limiting teeth integrally formed from front to back. The outer diameter of the rolling shaft is larger than the outer diameter of the limiting main shaft. The rolling ring is sleeved on the outside of the rolling shaft. The limiting ring is sleeved on the outside of the limiting main shaft. The limiting ring restricts the forward movement of the rolling ring.

7. The control mechanism with intermittent operation mode according to claim 1, characterized in that, The guide block has a flat-head hole in the center, into which the spring rod is inserted. Lower cylindrical pins are inserted on the front and rear sides of the guide block. The lower end of the spring rod has a pin groove to accommodate the lower cylindrical pins, which fix the spring rod in place.

8. The control mechanism with intermittent operation mode according to claim 1, characterized in that, The central shaft component includes a rectangular rod and a bearing seat that are connected vertically as one piece. The upper part of the rectangular rod is provided with a guide groove. The bearing seat has a cylindrical structure along the front-to-back direction. The center of the bearing seat is provided with a hole that mates with the rotating shaft.

9. The operating mechanism with intermittent operation mode according to claim 8, characterized in that, The rotating shaft has a cylindrical structure and includes a first step, a second step, a third step, a fourth step, and a fifth step arranged sequentially from front to back. The outer diameter of the fourth step is larger than the outer diameter of the third step, and the third step is connected to the shaft seat.

10. The control mechanism with intermittent operation mode according to claim 9, characterized in that, The bearing seat and the third step are provided with a cylindrical pin through them in the left and right directions.

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