CN201229984Y

CN201229984Y - Expandable bracket for satellite antenna

Info

Publication number: CN201229984Y
Application number: CNU2008200721217U
Authority: CN
Inventors: 刘小光; 邹青; 呼咏; 寇尊权; 魏福玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-14
Filing date: 2008-07-14
Publication date: 2009-04-29
Anticipated expiration: 2018-07-14

Abstract

The utility model discloses an unfolding stand for a satellite antenna, comprising a base, an unlocking mechanism, a locking mechanism, an auxiliary unfolding support, two main unfolding supports, a strut frame and torsion spring units. The unlocking mechanism is arranged in the base; the subsidiary unfolding support is hinged with the rear side of the base in inverse V manner; the two main unfolding supports are respectively hinged with the left side and right side of the base; the top ends of the subsidiary unfolding support and the two main unfolding supports are hinged with the strut frame respectively; a satellite antenna is fixed on the strut frame; four torsion spring units are fixed on the base, therein, two torsion spring units can respectively drive the two main unfolding supports to unfold, and the other two torsion spring units drive the auxiliary unfolding supports to unfold; the locking device is arranged between the strut frame and the base, and the unlocking mechanism is used to unlock the locking mechanism. The unfolding stand in folded state can be driven to unfold by the torsion spring units, and at the moment, the self-locking end of the self-lock toggle joint locks automatically to keep the satellite antenna at the unfolded state and prevent the satellite antenna from folding.

Description

The satellite antenna expandable stents

Technical field

The utility model relates to a kind of satellite antenna expandable stents.

Background technology

The used satellite antenna of spacecraft in the space industry is by stent support, need be folded state at spacecraft launching phase support, after spacecraft enters planned orbit, support will launch to do the work of receiving and transmitting signal so that satellite antenna trails, and this just needs a kind of expandable stents to finish the expansion task of satellite antenna.

Summary of the invention

The purpose of this utility model is for a kind of satellite antenna expandable stents is provided, and this expandable stents is in folded state at the spacecraft launching phase, treat spacecraft enter planned orbit after expandable stents can launch, satellite antenna is trailed.

The utility model is by base, release mechanism, locking mechanism, the secondary bracing frame that launches, the two main bracing frames that launch, support, the torsion spring device is formed, release mechanism is arranged in the base, the secondary bracing frame that launches is the reverse V-shaped back avris that is articulated in base, two main expansion bracing frames are articulated in the left side of base respectively, the right side, secondary tops of launching bracing frame and two main expansion bracing frames articulate with support respectively, be fixed with satellite antenna on the support, four torsion spring devices are fixed on the base, wherein two torsion spring devices can drive two main expansion bracing frames expansion respectively, other two torsion spring devices drive the secondary bracing frame that launches and launch, be provided with locking mechanism between support and the base, release mechanism is used for unlocked mechanism; The secondary structure of launching bracing frame is, the head end of connecting rod articulates with contiguous block intersection on two, the lower end of connecting rod articulates with two lower links respectively on two, the lower end of two lower links is separately fixed on the output shaft of torsion spring device, this output shaft and base articulate, and the distance between two pivoting points of two lower link lower ends adds that the length of two lower links equals the length sum of connecting rod on two; Main expansion bracing frame is by pivoted pole, the self-locking toggle, connecting rod on two, two lower links are formed, the upper end of connecting rod articulates with the two ends of pivoted pole respectively on two, the lower end of connecting rod articulates with the free end of self-locking toggle and self-locking end respectively on two, the upper end of two lower links articulates with the free end of self-locking toggle and self-locking end respectively, the lower end of the lower link that articulates with self-locking toggle free end is fixed on the output shaft of torsion spring device, this output shaft and base articulate, the lower end of the lower link that articulates with self-locking toggle self-locking end articulates with base, secondaryly launches the contiguous block at bracing frame top and the pivoted poles at two main expansion bracing frame tops articulate with support respectively; Locking mechanism be by clamping block fixing on contiguous block and two pivoted poles and respectively with its corresponding base on fixing clamping block and the latch that is plugged in the corresponding two clamping block holes constitute.

Expansion principle of the present utility model is:

1, during folded state, the secondary bracing frame that launches is folding to both sides, and lie prone on base, the two main bracing frames that launch lodge folding laterally, also lie prone on base, be fixed with also folding thereupon the lying prone on base, at this moment of support of satellite antenna, locking mechanism is by its latch locking, and the torsion spring device is in energy accumulating state;

2, during deployed condition, by release mechanism unlocked mechanism, promptly extract latch, at this moment, secondary expansion bracing frame and the two main bracing frames that launch slowly launch under the drive of torsion spring device, and satellite antenna is trailed, after satellite antenna launches fully, the self-locking end self-locking of self-locking toggle makes satellite antenna remain deployed condition, and can't fold.

The beneficial effects of the utility model are: the expansion that is specially adapted to satellite antenna is used.

Description of drawings

Fig. 1 is the schematic perspective view of the utility model embodiment folded state.

Fig. 2 is the schematic perspective view of the utility model embodiment deployed condition.

Fig. 3 is a self-locking toggle front view of the present utility model.

Fig. 4 is a self-locking toggle cutaway view of the present utility model.

Embodiment

See also Fig. 1, shown in Figure 2, be embodiment of the present utility model, be by base A, release mechanism B, locking mechanism C, the secondary bracing frame D that launches, the two main bracing frame E that launch, support F, torsion spring device G forms, release mechanism B is arranged among the base A, the secondary bracing frame D that launches is the reverse V-shaped back avris that is articulated in base A, two main expansion bracing frame E are articulated in the left side of base A respectively, the right side, secondary bracing frame D of expansion and two main tops of launching bracing frame E articulate with support F respectively, be fixed with satellite antenna H on the support F, four torsion spring device G are fixed on the base A, wherein two torsion spring device G can drive two main expansion bracing frame E expansion respectively, other two torsion spring device G drive the secondary bracing frame D that launches and launch, be provided with locking mechanism C between support F and the base A, release mechanism B is used for the C of unlocked mechanism; The secondary structure of launching bracing frame D is, the head end of connecting rod D1 articulates with contiguous block D3 intersection on two, the lower end of connecting rod D1 articulates with two lower link D2 respectively on two, the lower end of two lower link D2 is separately fixed on the output shaft G1 of torsion spring device G, this output shaft G1 and base A articulate, and the distance between two pivoting points of two lower link D2 lower ends adds that the length of two lower link D2 equals the length sum of connecting rod D1 on two; Main expansion bracing frame E is by pivoted pole E4, self-locking toggle E3, connecting rod E1 on two, two lower link E2 form, the upper end of connecting rod E1 articulates with the two ends of two pivoted pole E4 respectively on two, the lower end of connecting rod E1 articulates with the free end E31 of self-locking toggle E3 and self-locking end E32 respectively on two, the upper end of two lower link E2 articulates with the free end E31 of self-locking toggle E3 and self-locking end E32 respectively, the lower end of the lower link E2 that articulates with self-locking toggle E3 free end E31 is fixed on the output shaft G1 of torsion spring device G, this output shaft G1 and base A articulate, the lower end of the lower link E2 that articulates with self-locking toggle E3 self-locking end E32 articulates with base A, secondaryly launches the contiguous block D3 at bracing frame D top and the pivoted pole E4 at two main expansion bracing frame E tops articulate with support F respectively; Locking mechanism C is by contiguous block D3 and the last fixing clamping block C1 of two pivoted pole E4 and constitutes with last fixing clamping block C2 of its corresponding base A and the latch that is plugged in corresponding two clamping block C1, the C2 hole respectively that latch does not show in the drawings.

As Fig. 3, shown in Figure 4, the concrete structure of self-locking toggle E3 is: be by support side plate 11, slideway side plate 12, switching piece bearing pin 1, roller bearing pin 2, connecting rod 3, positioning seat 4, switching piece 5, side plate connects square 6, side plate contiguous block 7, adapting rod 8, side plate connecting axle 9, roller 10 is formed, support side plate 11, slideway side plate 12 is inverted T shape, side plate contiguous block 7 support fixation that are connected square 6 and top by middle side plate between support side plate 11 and the slideway side plate 12 together, be formed with space 13 between support side plate 11 and the slideway side plate 12, the widthwise edge of slideway side plate 12 offers slideway 14, the end section of this slideway 14 is outward-dipping, epimere is parallel with the vertical edge of slideway side plate 12, one end of two switching pieces 5 is fixed with adapting rod 8, two switching pieces 5 are positioned at the locus of the widthwise edge of support side plate 11 and slideway side plate 12, the other end of two switching pieces 5 is respectively by side plate connecting axle 9 and support side plate 11, slideway side plate 12 articulates, the switching piece 5 of this end is extended with the projection 16 perpendicular to adapting rod 8 axis, this projection 16 articulates by switching piece bearing pin 1 and connecting rod 3, the other end of connecting rod 3 is articulated with roller bearing pin 2, the other end of roller bearing pin 2 articulates roller 10, this roller 10 is positioned at the slideway 14 of slideway side plate 12, be provided with locating piece 4 between the support side plate 11 of two switching pieces, 5 lower ends and the slideway side plate 12, this is provided with slideway 14, one end of roller 10 and adapting rod 8 is the self-locking end E32 of self-locking toggle E3; Support side plate 11, slideway side plate 12 tops offer two axis holes 15, can also articulate by two axis holes 15 and bearing pin in both spaces of support side plate 11, slideway side plate 12 and go up connecting rod E1, lower link E2, consult Fig. 1, shown in Figure 2, this end is the free end E31 of self-locking toggle E3.

The course of work and the principle of self-locking toggle E3 are:

Consult Fig. 3, shown in Figure 4, when two adapting rods 8 inwardly draw in together with two switching pieces 5, self-locking toggle E3 is in folded state, at this moment, roller 10 is positioned at the tilting section of slideway side plate 12 slideways 14, when two adapting rods 8 outwards launch together with two switching pieces 5, self-locking toggle E3 is in the deployed condition, at this moment, connecting rod 3 drives roller 10 epimere to slideway 14 in slideway 14 and slides, slide into the summit of epimere of slideway 14 when roller 10 after, parallel with the vertical edge of slideway side plate 12 because of the epimere of this slideway 14, roller 10 locks in slideway 14, at this moment, adapting rod 8 is in the state vertical with the vertical edge of slideway side plate 12 together with switching piece 5, i.e. deployed condition, and the locating piece 4 of switching piece 5 lower ends makes the fixed-site of switching piece 5; After the connection connecting rod is used to support satellite antenna H expansion on the adapting rod 8, cooperate Fig. 1, shown in Figure 2, just satellite antenna H can be supported and launch also self-locking.

Claims

1, a kind of satellite antenna expandable stents, it is characterized in that: be by base, release mechanism, locking mechanism, the secondary bracing frame that launches, the two main bracing frames that launch, support, the torsion spring device is formed, release mechanism is arranged in the base, the secondary bracing frame that launches is the reverse V-shaped back avris that is articulated in base, two main expansion bracing frames are articulated in the left side of base respectively, the right side, secondary tops of launching bracing frame and two main expansion bracing frames articulate with support respectively, be fixed with satellite antenna on the support, four torsion spring devices are fixed on the base, wherein two torsion spring devices can drive two main expansion bracing frames expansion respectively, other two torsion spring devices drive the secondary bracing frame that launches and launch, be provided with locking mechanism between support and the base, release mechanism is used for unlocked mechanism; The secondary structure of launching bracing frame is, the head end of connecting rod articulates with contiguous block intersection on two, the lower end of connecting rod articulates with two lower links respectively on two, the lower end of two lower links is separately fixed on the output shaft of torsion spring device, this output shaft and base articulate, and the distance between two pivoting points of two lower link lower ends adds that the length of two lower links equals the length sum of connecting rod on two; Main expansion bracing frame is by pivoted pole, the self-locking toggle, connecting rod on two, two lower links are formed, the upper end of connecting rod articulates with the two ends of pivoted pole respectively on two, the lower end of connecting rod articulates with the free end of self-locking toggle and self-locking end respectively on two, the upper end of two lower links articulates with the free end of self-locking toggle and self-locking end respectively, the lower end of the lower link that articulates with self-locking toggle free end is fixed on the output shaft of torsion spring device, this output shaft and base articulate, the lower end of the lower link that articulates with self-locking toggle self-locking end articulates with base, secondaryly launches the contiguous block at bracing frame top and the pivoted poles at two main expansion bracing frame tops articulate with support respectively; Locking mechanism be by clamping block fixing on contiguous block and two pivoted poles and respectively with its corresponding base on fixing clamping block and the latch that is plugged in the corresponding two clamping block holes constitute.