External clutch mechanism of telescope bracket

Abstract

The present invention relates to an external clutch mechanism for a telescope bracket, wherein the external clutch mechanism includes a linear slide shaft, which is slidably mounted on a housing and opposite to a joint, and a plurality of pin holes are evenly distributed in a circle on the side surfaces opposite to the joint and the linear slide shaft. When the joint rotates, the pin holes pass through the clutch position in sequence, and the linear slide shaft is connected to a driving device mounted on the housing; the driving device is an electric structure and / or a manual structure; the electric structure is a push-pull electromagnet, which is fixedly mounted on the housing and connected to the linear slide shaft. When the push-pull electromagnet is energized, it drives the linear slide shaft to exit the pin hole on the clutch position, and when the push-pull electromagnet is de-energized, it drives the linear slide shaft to extend into the pin hole on the clutch position under the action of its reset spring; the manual structure includes a slider, which is slidably mounted on the housing and connected to the linear slide shaft through a sliding shaft. The slider slides back and forth, driving the linear slide shaft to extend into or exit the pin hole on the clutch position.

Description

Technical Field

[0001] The invention relates to a telescope, in particular to an external clutch mechanism of a telescope bracket. Background Art

[0002] Astronomical telescope brackets usually include two rotating shafts. In order to prevent the two shafts from rotating randomly, the two shafts usually have a clutch mechanism. Currently, the most common method is manual clutch, which is operated on-site by the user. Summary of the Invention

[0003] The invention provides an external clutch mechanism for a telescope bracket.

[0004] The technical solution of the present invention:

[0005] Disclosed is an external clutch mechanism for a telescope bracket, the telescope bracket comprising an outer shell, in which a rotating shaft is rotatably mounted, one end of the rotating shaft extending through the outer shell and connected to a joint, wherein the joint is a circular disc; the external clutch mechanism comprising a linear slide shaft, which is slidably mounted on the outer shell, opposite the joint; a plurality of pin holes are evenly distributed in a circle on opposite sides of the joint and the linear slide shaft; when the joint rotates, the pin holes sequentially pass through the clutch position; the linear slide shaft is connected to a drive device mounted on the outer shell, which drives the linear slide shaft to extend into or out of the pin holes on the clutch position and to be pin-connected to the joint; the drive device is an electric structure and / or a manual structure.

[0006] The electric structure is a push-pull electromagnet, which is fixedly mounted on the outer shell and connected to the linear slide shaft. When the push-pull electromagnet is energized, it drives the linear slide shaft to exit the pin hole on the clutch position. When the push-pull electromagnet is de-energized, it drives the linear slide shaft to extend into the pin hole on the clutch position under the action of its reset spring.

[0007] The manual structure includes a slider which is slidably mounted on the housing and connected to the linear slide shaft via a sliding shaft. The slider slides back and forth to drive the linear slide shaft into or out of the pin hole on the clutch position.

[0008] The external clutch mechanism also includes a fixing plate, which is fixedly connected to the housing and located between the linear slide shaft and the joint. A fixing hole is provided on the fixing plate, and the linear slide shaft passes through the fixing hole to extend into or out of the pin hole on the clutch position.

[0009] The driving device is an electric structure and a manual structure. The sliding shaft constitutes a pin, which connects the push-pull electromagnet and the linear slide shaft; the manual structure also includes a tightening screw, which is installed on the housing, and the slider drives the linear slide shaft to exit the pin hole on the clutch position and is locked by the tightening screw; considering that when the manual clutch is performed, the linear slide shaft exits the pin hole of the clutch position, at this time, the push-pull electromagnet is not energized, and under the action of its reset spring, the push-pull electromagnet will push the linear slide shaft into the pin hole of the clutch position, and the purpose of manual clutching cannot be achieved. For this reason, a tightening screw is designed. When the linear slide shaft exits the pin hole of the clutch position, the slider is locked by the tightening screw to overcome the elastic force of the push-pull electromagnet reset spring.

[0010] An annular convex is integrally provided on the outer circumference of the linear slide shaft, and two micro switches are also installed on the outer shell, one is an insertion micro switch and the other is an exit micro switch. An electric drive mechanism is installed in the outer shell, the electric drive mechanism is connected to the rotating shaft, and the micro switch is connected to the control system of the electric drive mechanism; the linear slide shaft extends into the pin hole on the clutch position, the annular convex contacts and triggers the insertion micro switch, and the linear slide shaft exits the pin hole on the clutch position, the annular convex contacts and triggers the exit micro switch, so as to detect the insertion or exit status of the linear slide shaft, and the exit micro switch transmits the linear slide shaft disengagement signal to the control system of the electric drive mechanism, and the control system of the electric drive mechanism controls the electric drive mechanism to drive the rotating shaft to drive the joint to rotate together; the electric drive mechanism is a servo motor; preferably, the control system of the electric drive mechanism is a control circuit composed of a frequency converter connection, so that the commonly used technical means in this field will not be described here one by one.

[0011] The external clutch mechanism further comprises an electromagnet housing, which is fixedly connected to the housing. The linear slide shaft and the drive device are both installed in the electromagnet housing, and an opening for accommodating the linear slide shaft is provided on the electromagnet housing.

[0012] A bearing seat is fixedly connected to the electromagnet housing, a linear bearing is installed in the bearing seat, and the linear sliding shaft passes through the linear bearing and is slidably connected to the linear bearing.

[0013] The electromagnet housing is fixedly connected to an electromagnet seat, and the push-pull electromagnet is fixedly connected to the electromagnet seat.

[0014] Two pressure plates are fixedly connected to the electromagnet housing. The two pressure plates are opposite to each other with a gap between them to form a slide groove. The slider is placed in the slide groove and is slidably connected to the slide groove. A strip hole is provided on the electromagnet housing. A shift rod is provided in the strip hole. One end of the shift rod extends into the electromagnet housing and is connected to the slider, and the other end extends out of the electromagnet housing for a certain distance. The strip hole constitutes a limit of the shift rod.

[0015] The chute is in the shape of a convex character.

[0016] The advantages of the present invention are reasonable design, simple structure, and ability to realize electric and / or manual clutching of the joint; and when electric clutching is adopted, remote control requirements are met, and the push-pull electromagnet can be powered on and off by remote control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a stereoscopic diagram of the telescope bracket.

[0018] Figure 2 This is the front view of the telescope bracket.

[0019] Figure 3 yes Figure 2 A partially enlarged schematic diagram.

[0020] In the figure, the housing 1, the joint 2, the external clutch mechanism 3, the linear sliding shaft 31, the annular protrusion 311, the driving device 32, the push-pull electromagnet 3211, the electromagnet seat 3212, the slider 3221, the pressure plate 3222, the sliding shaft 3223, the tightening screw 3224, the lever 3225, the fixing plate 33, the electromagnet housing 34, the bearing seat 35, the exit micro switch 4, and the insertion micro switch 5 are shown. DETAILED DESCRIPTION

[0021] like Figure 1-3As shown, an external clutch mechanism of a telescope bracket, the telescope bracket includes a shell 1, a rotating shaft is rotatably installed in the shell 1, one end of the rotating shaft extends through the shell 1 and is connected to a joint 2, and the joint 2 is a disc; the external clutch mechanism 3 includes a linear slide 31, the linear slide 31 is slidably installed on the shell 1, opposite to the joint 2, and a plurality of pin holes are evenly distributed on the opposite sides of the joint 2 and the linear slide 31. When the joint 2 rotates, the pin holes pass through the clutch position in turn, and the linear slide 31 is connected to a driving device 32 installed on the shell 1; the external clutch mechanism 3 also includes a fixing plate 33, the fixing plate 33 is fixedly connected to the shell 1, located between the linear slide 31 and the joint 2, and a fixing hole is provided on it; the driving device 32 drives the linear slide 31 to pass through the fixing hole and extend into or out of the pin hole on the clutch position to be pin-connected with the joint 2; the external clutch mechanism 3 also includes The electromagnet housing 34 is fixedly connected to the housing 1, and the linear slide 31 and the drive device 32 are both installed in the electromagnet housing 31, and an opening is provided on the electromagnet housing 34 to accommodate the linear slide 31; a bearing seat 35 is fixedly connected to the electromagnet housing 34, and a linear bearing is installed in the bearing seat 35, and the linear slide 31 passes through the linear bearing and is slidably connected with the linear bearing; an annular convexity 311 is integrally provided on the outer peripheral surface of the linear slide 31, and two micro switches are installed in the electromagnet housing 34, one for exiting the micro switch 4 and the other for entering the micro switch 5; the linear slide 31 extends into the pin hole on the clutch position, and the annular convexity 311 contacts and triggers the entering micro switch 5, and the linear slide 31 exits the pin hole on the clutch position, and the annular convexity 311 contacts and triggers the exit micro switch 4; the drive device 32 is an electric structure and a manual structure.

[0022] The electric structure is a push-pull electromagnet 3211, and an electromagnet seat 3212 is fixedly connected to the electromagnet housing 34. The push-pull electromagnet 3211 is fixedly connected to the electromagnet seat 3212 and is connected to the linear slide 31. When the push-pull electromagnet 3211 is energized, it drives the linear slide 31 to exit the pin hole on the clutch position. When the push-pull electromagnet 3211 is de-energized, it drives the linear slide 31 to extend into the pin hole on the clutch position under the action of its reset spring.

[0023] The manual structure includes a slider 3221, and two pressure plates 3222 are fixedly connected to the electromagnet housing 34. The two pressure plates 3222 are opposite to each other with a gap between them to form a slide groove. The slider 3221 is placed in the slide groove and is connected to the slide groove in a sliding manner. It is connected to the linear slide shaft 31 through a sliding shaft 3223. The slider 3221 slides back and forth, driving the linear slide shaft 31 to extend into or out of the pin hole on the clutch position; the manual structure also includes a tightening screw 3224, which tightens the screw. The nail 3224 is installed on the electromagnet housing 34, and the slider 3221 drives the linear slide shaft 31 to exit the pin hole on the clutch position and is locked by the tightening screw 3224; a strip hole is provided on the electromagnet housing 34, and a shift rod 3225 is provided in the strip hole, one end of the shift rod 3225 extends into the electromagnet housing 34 and is connected with the slider 3221, and the other end extends out of the electromagnet housing 34 for a section; the strip hole constitutes a limit for the shift rod 3225; the slide groove is a "convex" shape.

[0024] The sliding shaft 3223 constitutes a pin, which connects the push-pull electromagnet 3211 and the linear sliding shaft 31 .

[0025] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. An external clutch mechanism for a telescope bracket, the telescope bracket comprising a housing, a rotating shaft rotatably mounted within the housing, one end of the rotating shaft extending through the housing and connected to a joint, the joint being a disk; characterized in that: The external clutch mechanism includes a linear slide shaft, which is slidably mounted on the housing and opposite to the joint. A plurality of pin holes are evenly distributed around the side of the joint opposite to the linear slide shaft. When the joint rotates, the pin holes sequentially pass through the clutch position. The linear slide shaft is connected to a drive device mounted on the housing, and the drive device drives the linear slide shaft to extend into or out of the pin holes on the clutch position and be pin-connected with the joint. The drive device is an electric structure and / or a manual structure. The electric structure is a push-pull electromagnet, which is fixedly mounted on the housing and connected to the linear slide shaft. When the push-pull electromagnet is energized, the linear slide shaft is driven to exit the pin hole on the clutch position. When the push-pull electromagnet is de-energized, the linear slide shaft is driven to extend into the pin hole on the clutch position under the action of its return spring. The manual structure includes a slider, which is slidably mounted on the housing and connected to the linear slide shaft through a sliding shaft. The slider slides back and forth, driving the linear slide shaft to extend into or out of the pin hole on the clutch position; The external clutch mechanism also includes a fixing plate, which is fixedly connected to the housing and located between the linear slide shaft and the joint. The fixing plate is provided with a fixing hole, and the linear slide shaft passes through the fixing hole to extend into or out of the pin hole on the clutch position. The driving device has an electric structure and a manual structure. The sliding shaft forms a pin that connects the push-pull electromagnet and the linear sliding shaft. The manual structure also includes a tightening screw installed on the housing. The slider drives the linear sliding shaft to exit the pin hole on the clutch position and is locked by the tightening screw. An annular convex is integrally provided on the outer circumference of the linear slide shaft, and two micro switches are further installed on the housing, one is an insertion micro switch and the other is an exit micro switch. An electric drive mechanism is installed in the housing, the electric drive mechanism is connected to the rotating shaft, and the micro switch is connected to the control system of the electric drive mechanism; the linear slide shaft extends into the pin hole on the clutch position, the annular convex contacts and triggers the insertion micro switch, the linear slide shaft exits the pin hole on the clutch position, the annular convex contacts and triggers the exit micro switch, the exit micro switch transmits a linear slide shaft disengagement signal to the control system of the electric drive mechanism, and the control system of the electric drive mechanism controls the electric drive mechanism to drive the rotating shaft to drive the joint to rotate together; the electric drive mechanism is a servo motor; The external clutch mechanism further includes an electromagnet housing, which is fixedly connected to the housing. The linear slide shaft and the drive device are both installed in the electromagnet housing, and an opening is provided on the electromagnet housing for accommodating the linear slide shaft to pass through. The electromagnet housing is fixedly connected to a bearing seat, a linear bearing is installed in the bearing seat, and the linear sliding shaft passes through the linear bearing and is slidably connected to the linear bearing; The electromagnet housing is fixedly connected to an electromagnet seat, and the push-pull electromagnet is fixedly connected to the electromagnet seat; Two pressure plates are fixedly connected to the electromagnet housing. The two pressure plates are opposite to each other with a gap between them, forming a slide groove. The slider is placed in the slide groove and is slidably connected to the slide groove. A strip hole is provided on the electromagnet housing. A lever is provided in the strip hole. One end of the lever extends into the electromagnet housing and is connected to the slider, and the other end extends out of the electromagnet housing for a certain distance. The strip hole constitutes a limit for the lever. The chute is in the shape of a "convex" character.

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