Reusable electromagnetic locking and releasing switch

Abstract

The utility model provides a reusable electromagnetic locking and releasing switch, which replaces a disposable locking and releasing device with higher cost, such as a firer cutter, an expansion breaking device or a hot knife, can be reused in the development process, reduces the development cost of products, and shortens the development cycle of the products. The two pairs of knuckle bearings, the two electromagnetic switches and the two locking plates form a connecting rod structure, movement of the two pairs of knuckle bearings is limited through the double-track linear sliding rail, movement of the two pairs of knuckle bearings is controlled through the electromagnetic switches, and then the two locking plates are driven to lock or release the pull rod. On-satellite locking and releasing actions of the pull rod are simulated, the requirements of a space product ground development stage are met, and the problems of cost reduction and efficiency improvement in low-cost commercial satellite development are particularly solved.

Description

Technical Field

[0001] The utility model belongs to the field of satellite product auxiliary equipment, and in particular relates to a reusable electromagnetic locking and releasing switch. Background Art

[0002] At present, large deployable products on satellites need to be folded and stowed during ground action verification and repeated deployment accuracy testing. Figure 1 The deployable product includes a pull rod 6, an deployable component 7 and a triggering device. In order to achieve assembly requirements and effectively reduce the envelope dimensions of the deployable component, the pull rod 6 is required to constrain the deployable component 7 before the product enters the track to keep it in a folded state; after the product enters the track, the triggering device is used to cut or release the pull rod 6, so that the deployable component 7 can be deployed under the action of an active or passive driving device.

[0003] Currently, disposable pyrotechnic cutters are commonly used for cutting, or expanders and hot knives are used as triggering devices to ensure the smooth launch of satellites and reliable deployment in orbit.

[0004] However, during the development process, both the expander and the hot knife need to replace the main load-bearing parts after release, resulting in a long development cycle and high costs. In addition, this type of device has low safety and will cause environmental pollution. It is not suitable for large-scale testing and experiments of simulated on-board locking and release actions under normal temperature conditions on the ground. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a reusable electromagnetic locking release switch.

[0006] The technical solution provided by the utility model is:

[0007] A reusable electromagnetic lock release switch, which is special in that:

[0008] It includes a base, a sliding assembly, two locking plates, two electromagnetic switches and two pairs of spherical bearings;

[0009] The sliding assembly includes a linear slide rail and two sliders; the slide rail is fixed on the base, and the two sliders slide freely on the slide rail;

[0010] The two locking plates are respectively mounted on the two sliders, and a protrusion is provided on one side opposite to the other locking plate, and a locking half hole is provided at the front end of the protrusion for locking the pull rod; the locking half holes of the two locking plates are butted to form a locking hole;

[0011] The electromagnetic switch is provided with a driving shaft, and the electromagnetic switch controls the contraction and release of the driving shaft by switching on and off the circuit;

[0012] The two ends of the joint bearing are respectively connected to the driving shaft and the locking plate, and together with the two electromagnetic switches and the two locking plates, form a connecting rod structure; wherein the two joint bearings connected to the same locking plate are symmetrical along the central axis of the locking plate, and the two joint bearings connected to the same driving shaft are symmetrical along the butt line of the locking hole;

[0013] The driving shaft controls the joint bearing to move in the direction of the butt joint line of the locking hole, so that the two pairs of joint bearings move toward each other or in the opposite direction, thereby driving the two locking plates to perform a locking action or a releasing action.

[0014] Furthermore, the electromagnetic switch is also provided with an electromagnet and a spring; a spring is sleeved on the rear end of the driving shaft, wherein the rear end of the spring abuts against the pin at the rear end of the electromagnetic switch housing, and the front end abuts against the protrusion on the side wall of the driving shaft. The electromagnetic switch controls the electromagnet to energize to attract the driving shaft to move backward and compress the spring sleeved on the rear end of the driving shaft. The driving shaft moves backward to achieve the docking and contraction of the two locking plates; the electromagnetic switch releases the driving shaft by cutting off the power of the electromagnet. The driving shaft is automatically released and moves forward under the push of the compression spring sleeved on the rear end of the driving shaft. The driving shaft moves forward to achieve the separation of the two locking plates.

[0015] Furthermore, the slide rail is a double-track linear slide rail.

[0016] Furthermore, the base and the locking plate are both provided with weight-reducing holes.

[0017] The advantages of the utility model are:

[0018] 1. The utility model replaces the high-cost disposable triggering devices or locking and releasing devices such as pyrotechnic cutters, expanders or hot knives, and can be reused during the development process, thereby reducing product development costs and shortening product development cycles.

[0019] 2. The utility model combines two pairs of spherical bearings, two electromagnetic switches and two locking plates into a connecting rod structure, limits the movement of the two pairs of spherical bearings by double-track linear slides, controls the movement of the two pairs of spherical bearings by electromagnetic switches, and then drives the two locking plates to lock or release, simulating the on-board locking and releasing action of the pull rods, meeting the needs of the ground development stage of space products, and especially solving the problem of cost reduction and efficiency improvement faced in the development of low-cost commercial satellites. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the triggering device in a large deployable product;

[0021] Figure 2 It is a schematic diagram of the electromagnetic switch linkage rod composition of the present invention;

[0022] Figure 3 It is a schematic diagram of the locked state of the electromagnetic switch;

[0023] Figure 4 It is a schematic diagram of the release state of the electromagnetic switch;

[0024] In the figure: 1-base; 2-slide rail; 3-electromagnetic switch; 4-locking plate; 5-spherical bearing; 6-pull rod; 7-unfolding assembly; 8-slider; 9-locking hole. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] like Figure 2 As shown, this embodiment provides a reusable electromagnetic locking release switch.

[0027] It includes a base 1, a sliding assembly, two locking plates, two electromagnetic switches 3 and two pairs of spherical bearings 5.

[0028] The sliding assembly comprises a linear slide rail 2 and two sliders 8; the slide rail 2 is fixed on the base 1, and the two sliders 8 slide freely on the slide rail 2; the slide rail 2 of the utility model is a double-rail linear slide rail.

[0029] The two locking plates 4 are respectively installed on the two sliding blocks, and a protrusion is provided on the side opposite to the other locking plate. The front end of the protrusion has a locking half hole for locking the pull rod 6; the locking half holes of the two locking plates 4 are connected to form a locking hole 9, which clamps the pull rod 6 passing through the locking hole 9 to achieve the purpose of constraining the pull rod 6.

[0030] The electromagnetic switch 3 is provided with a driving shaft, an electromagnet and a spring;

[0031] The rear end of the drive shaft is sleeved with a spring, wherein the rear end of the spring abuts against the pin at the rear end of the electromagnetic switch 3 housing, and the front end abuts against the protrusion on the side wall of the drive shaft. The electromagnetic switch 3 controls the electromagnet to energize to attract the drive shaft to move backward and compress the spring sleeved at the rear end of the drive shaft. The drive shaft moves backward to achieve the docking and contraction of the two locking plates; the electromagnetic switch 3 releases the drive shaft by disconnecting the electromagnet, and the drive shaft is automatically released and moves forward under the push of the compression spring sleeved at the rear end of the drive shaft. The drive shaft moves forward to separate the two locking plates. The electromagnetic switch 3 controls the contraction and release of the drive shaft by switching the circuit on and off.

[0032] The two ends of the joint bearing 5 are connected to the drive shaft and the locking plate 4 respectively, and together with the two electromagnetic switches 3 and the two locking plates 4, they form a connecting rod structure. The two joint bearings 5 ​​connected to the same locking plate 4 are symmetrical along the central axis of the locking plate 4, and the two joint bearings 5 ​​connected to the same drive shaft are symmetrical along the butt joint line of the locking hole 9. The drive shaft controls the joint bearing 5 to move in the direction of the butt joint line of the locking hole 9, so that the two pairs of joint bearings 5 ​​move toward or in the opposite direction, driving the two locking plates 4 to lock or release. The locking plate 4 moves on the axis of the slide rail 2 under the restriction of the slider 8 and the slide rail 2, solving the problem of the synchronization of the movements of multiple parallel joint bearings 5.

[0033] In order to meet the weight reduction requirements of the simulation test, weight reduction holes are provided on the base 1 and the locking plate 4 of this embodiment.

[0034] The working principle of the utility model is:

[0035] like Figure 3 As shown, the electromagnetic switch 3 is powered on, the electromagnet attracts the drive shaft to compress the spring, and at the same time drives the joint bearing 5 to contract, so that the two locking plates 4 move toward each other along the slide rail 2 to lock the pull rod 6;

[0036] like Figure 4 As shown, the electromagnetic switch 3 is powered off, the electromagnet releases the drive shaft, and the drive shaft is automatically released and pushes out the spherical bearing 5 under the push of the compression spring, so that the two locking plates 4 move in the opposite direction along the slide rail 2 to release the pull rod 6.

[0037] The above description is only a specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the present utility model, and these modifications or substitutions should be included in the protection scope of the present utility model.

Claims

1. A reusable electromagnetic locking release switch, characterized in that: It includes a base, a sliding assembly, two locking plates, two electromagnetic switches and two pairs of spherical bearings; The sliding assembly includes a linear slide rail and two sliders; the slide rail is fixed on the base, and the two sliders slide freely on the slide rail; The two locking plates are respectively mounted on the two sliders, and a protrusion is provided on one side opposite to the other locking plate, and a locking half hole is provided at the front end of the protrusion for locking the pull rod; the locking half holes of the two locking plates are butted to form a locking hole; The electromagnetic switch is provided with a driving shaft, and the electromagnetic switch controls the contraction and release of the driving shaft by switching on and off the circuit; The two ends of the joint bearing are respectively connected to the driving shaft and the locking plate, and together with the two electromagnetic switches and the two locking plates, form a connecting rod structure; wherein the two joint bearings connected to the same locking plate are symmetrical along the central axis of the locking plate, and the two joint bearings connected to the same driving shaft are symmetrical along the butt line of the locking hole; The driving shaft controls the joint bearing to move in the direction of the butt joint line of the locking hole, so that the two pairs of joint bearings move toward each other or in the opposite direction, thereby driving the two locking plates to perform a locking action or a releasing action.

2. A reusable electromagnetic lock release switch according to claim 1, characterized in that: The electromagnetic switch is also provided with an electromagnet and a spring; a spring is sleeved on the rear end of the driving shaft, wherein the rear end of the spring abuts against the pin at the rear end of the electromagnetic switch housing, and the front end abuts against the protrusion on the side wall of the driving shaft. The electromagnetic switch controls the electromagnet to energize to attract the driving shaft to move backward and compress the spring sleeved on the rear end of the driving shaft. The driving shaft moves backward to achieve the docking and contraction of the two locking plates; the electromagnetic switch releases the driving shaft by cutting off the power of the electromagnet, and the driving shaft is automatically released and moves forward under the push of the compression spring sleeved on the rear end of the driving shaft. The driving shaft moves forward to achieve the separation of the two locking plates.

3. A reusable electromagnetic lock release switch according to claim 1, characterized in that: The slide rail is a double-track linear slide rail.

4. A reusable electromagnetic lock release switch according to claim 1, characterized in that: The base and the locking plate are both provided with weight-reducing holes.

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