CN215707160U

CN215707160U - Clamping device and aircraft

Info

Publication number: CN215707160U
Application number: CN202120607690.2U
Authority: CN
Inventors: 王振宇; 罗鑫; 卢娜; 章晓春; 张冲
Original assignee: Commercial Aircraft Corp of China Ltd
Current assignee: Commercial Aircraft Corp of China Ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2022-02-01
Anticipated expiration: 2031-03-25

Abstract

The utility model relates to a clamping device and an aircraft provided with the clamping device, wherein the clamping device comprises: a pallet (2) having a flat first surface (21) and a second surface opposite to the first surface, the first surface being provided with a gripping unit (4) for gripping an object to be gripped; a base plate (3), the pallet (2) being mounted on the base plate (3) by means of a rotary shaft (8) extending parallel to its surface, such that the pallet (2) can be rotated relative to the base plate (3), wherein the clamping device (1) further comprises an actuating unit (6) arranged between the pallet (2) and the base plate (3) at a side remote from the rotary shaft (8), the angle of the pallet (2) relative to the base plate (3) being changeable by operating the actuating unit (6).

Description

Clamping device and aircraft

Technical Field

The present invention relates to a clamping device for clamping, for example, paper documents and an aircraft having such a clamping device.

Background

Various clamping devices for clamping objects to be clamped are known in the prior art. The object to be held is, for example, a map, an electronic device, or the like, to provide a user with various information required.

For example, patent document CN201604397U discloses a portable map clamping plate easy to use, which includes a rectangular plate, an L-shaped fixing plate is disposed on the upper portion of the surface of the plate, a supporting plate is vertically disposed in the front of the horizontal plane of the fixing plate, two or more supporting bars are disposed between the supporting plate and the vertical plane of the fixing plate, a torsion spring is sleeved on one of the supporting bars, two ends of the torsion spring are respectively fixed on a pressing plate and a pressing plate, a protruding block is disposed on the pressing plate, a blocking hole matched with the protruding block is formed on the vertical plane of the fixing plate, and the pressing plate is further connected with and fixed to the end portions of the other supporting bars. Such a map clamp is not adjustable in tilt angle.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide a clamping device which is adjustable to match the habits of the user.

According to the present invention, there is provided a clamping device comprising: a pallet having a flat first surface and a second surface opposite to the first surface, the first surface being provided with a clamping unit for clamping an object to be clamped; and a base plate on which the pallet is mounted by a rotation shaft extending parallel to a surface thereof such that the pallet can rotate relative to the base plate, wherein the clamping device further comprises an actuating unit provided between the pallet and the base plate at a side remote from the rotation shaft, and an angle of the pallet relative to the base plate can be changed by manipulating the actuating unit.

In such a clamping device according to the utility model, the possibility of adjusting the inclination angle of the clamping device by means of the actuating unit, i.e. changing the size of the angle of the platform with respect to the base plate, is achieved, so that users of different heights are provided with a viewing angle that is comfortable for them, which is ergonomically advantageous.

According to one embodiment of the utility model, the actuating unit comprises a rack provided on one of the pallet and the base plate, and a pinion provided on the other of the pallet and the base plate, the rack and the pinion being in mesh with each other. The rack and the gear can move relative to each other, so that the supporting plate can rotate relative to the bottom plate.

According to another embodiment of the utility model, the pallet or the base plate is provided with a support at which the gear is provided, wherein a rotary handle rotating integrally with the gear is provided at a side of the gear facing the outside of the clamping device, so that the rotary handle is easily accessible to the hand for adjustment.

According to another embodiment of the present invention, a chuck integrally rotated with the gear is provided at a side of the gear toward an inner side of the clamping device, wherein the chuck is coaxial with the gear and the knob and is configured to be able to lock a position of the rack and the gear when the rack and the gear are assembled together, whereby an undesired rotation of the pallet with respect to the base plate can be prevented.

According to a further embodiment of the utility model, the chuck is formed with a plurality of recesses on its surface facing the support, which support is provided with retractable catches, wherein the catches can engage in the recesses.

According to another embodiment of the utility model, the recess is of spherical crown shape and the catch is a ball. In this way, the protruding ball may provide a fixed knob position, and the spherical configuration may be advantageous for reducing friction during adjustment.

According to a further embodiment of the utility model, the support part has a second through hole in the form of a threaded hole, in which a receptacle is accommodated, which receptacle has a blind hole, the ball being at the open side of the blind hole, in which blind hole a spring is arranged, the two ends of which spring act on the bottom side of the blind hole and on the ball, respectively.

According to another embodiment of the utility model, the plurality of recesses are arranged annularly in the circumferential direction of the chuck.

According to another embodiment of the utility model, the rack is rounded in order to smooth the movement of the actuating mechanism.

According to another embodiment of the present invention, a third through hole is provided on the base plate to assemble the base plate.

According to the utility model, an aircraft is also proposed, which is equipped with the above-mentioned clamping device.

According to one embodiment of the utility model, the floor is a component of an aircraft.

Drawings

The utility model is further elucidated with reference to the drawing. Wherein the content of the first and second substances,

figure 1 schematically shows a perspective view of an embodiment of a clamping device according to the utility model;

FIG. 2 shows a pallet of the clamping device of FIG. 1;

FIG. 3 shows a portion of an actuating unit of the clamping device of FIG. 1;

FIG. 4 shows a bottom plate of the clamping device of FIG. 1;

FIG. 5 shows a support portion of the clamping device of FIG. 1;

FIG. 6 shows a locking unit of the clamping device of FIG. 1;

FIG. 7 shows a longitudinal cross-sectional view of the locking unit shown in FIG. 6;

fig. 8 shows a view in which the locking unit is fitted on the support portion; and

fig. 9 shows an adjustment unit of the clamping device of fig. 1.

Detailed Description

Various holding devices for holding an object to be held (e.g., a paper document such as a document, a map, or an electronic device, etc.) are known. Such a clip-on device may be mounted on a fixed support to display information to the user, thereby freeing the user's hands.

For example, such a clamping device may be used in a stick-pan type aircraft, which is mounted on a steering wheel and is used to clamp documents so that the pilot can view the documents during flight without affecting the handling of the aircraft. Such a clamping device can be roughly classified into two types, one is a combination of a single base plate and a clamping unit, and the other is a combination of a double base plate and a clamping unit. The combination of the single bottom plate and the clamping unit can not adjust the angle of the bottom plate, so that the situations of lower file clamping position and inconvenient use can occur to pilots with different heights in the use process. The combination of the double bottom plates and the clamping units mainly uses a boeing aircraft as a main part, the angle adjustment of the bottom plates can be realized in the use process, the angle adjustment amount is limited, only a plurality of fixed clamping positions are arranged, the corrugated spring sheets at the clamping positions are easy to damage, and the clamping stagnation phenomenon can occur after long-time use. There is thus room for optimization of the above-described clamping device.

In fig. 1, a clamping device 1 according to an embodiment of the utility model is shown. The holding device 1 comprises a carrier plate 2 and a base plate 3 which are connected rotatably relative to each other, as will be explained further below. The pallet 2 has a flat first surface 21 on which a gripping unit 4 for gripping the object to be gripped is provided. The gripping unit 4 may be, for example, a spring clip fixed on the blade, and by applying an external force to the spring clip, an object to be gripped (e.g., a sheet) may be placed in a space formed between the spring clip and the blade. The spring clamp holds the object to be clamped on the supporting plate without external force. Although only one clamping unit is shown in the figures, other numbers and types of clamping units provided on the pallet are equally feasible.

Fig. 2 to 4 each show different components of the clamping device 1. It can be seen that the pallet 2 is provided with a pair of lugs 23 on the side of the second surface 22 opposite the first surface 21, which lugs 23 each have a through hole 24; the base plate 3 is likewise provided with a pair of mating lugs 33 on a third surface 32 facing the pallet 2, which mating lugs each have a through hole 34. The distance between the inner sides of the lugs 23 facing each other is equal to the distance between the outer sides of the mating lugs 33 facing away from each other, or the distance between the outer sides of the lugs 23 facing away from each other is equal to the distance between the inner sides of the mating lugs 33 facing each other, so that in the assembled state the mating lugs 33 are between the lugs 23, or the lugs 23 are between the mating lugs 33, and the faces of the lugs 23 and the mating lugs 33 facing each other abut, whereby the pallet or the base plate is prevented from moving in the longitudinal direction of the perforation or through hole. The shaft 8 passes through the through hole and the through hole to mount the pallet 2 on the base plate 3. Preferably, the rotation axis 8 may extend parallel to the surface of the pallet 2. Thus, the shaft or the through hole defines the axis of rotation of the blade relative to the base plate.

The lugs 23 and mating lugs 33 may be integrally formed on the pallet and base plate or they may be formed separately and then later mounted on the pallet and base plate.

The clamping device 1 further comprises an actuating unit 6 arranged between the pallet 2 and the base plate 3 at a side remote from the axis of rotation 8, by operating the actuating unit 6, the angle of the pallet 2 relative to the base plate 3 can be changed. Herein, "away from the axis of rotation" is understood to mean "spaced from the axis of rotation in a direction transverse to the longitudinal axis of the axis of rotation". The actuating unit 6 includes a rack gear 43 provided on one of the pallet 2 and the bottom plate 3, and a pinion gear 72 provided on the other of the pallet 2 and the bottom plate 3, the rack gear 43 and the pinion gear 72 being engaged with each other.

In the example shown, the toothed rack 43 is provided on the pallet 2. Specifically, a frame 40 is provided on the second surface 22 of the pallet, which may be mounted to the pallet, for example, by screws 42. The body 41 of the frame 40 is hollow, thereby forming the accommodating space 44 accommodating the gear 72. A row of teeth is formed on the inner side of the frame 40 in a direction perpendicular to the second surface 22, the teeth being arranged in a circular arc shape. Accordingly, the base plate 3 is provided with the support portion 50, and the gear 72 is provided at the support portion 50. Although the support portion installed at the outer circumferential side of the bottom plate 3 is illustrated in fig. 3, for example, by a screw passing through a hole 51 provided on the support portion 50, the support portion may also be installed on the third surface 32. Of course, the mounting positions of the reversing rack 43 and the gear 72 are also possible.

A knob 71 that rotates integrally with the gear 72 is provided on the side of the gear 72 facing the outside of the clamp device 1. A chuck 73 that rotates integrally with the gear 72 is provided on the side of the gear 72 toward the inside, i.e., the inside, of the clamping device 1, and is configured to be able to lock the positions of the rack 43 and the gear 72 in the use position when the rack 43 and the gear 72 are assembled together.

In the example shown, the chuck 73 is arranged on the spindle 70 coaxially with the gear 72 and the tap 71. The chuck, gear, knob and spindle may be separately, partially or fully integrally formed. For example, where the chuck, gear, knob and spindle are separate components, they may be assembled afterwards. In particular, the knob may be provided with a pattern on its outer circumference for easy manual adjustment. The lever shaft is rotatably received in the receiving hole 52 of the support portion 50 through the other end 74 opposite to the end where the knob is located. For this purpose, a bearing may be mounted at the other end 74, the inner and outer rings of which contact the rod shaft and the support portion, respectively.

For locking, the chuck 73 is formed with a plurality of recesses 75 on its surface facing the support 50, the support 50 being provided with retractable catches 62, wherein the catches 62 can engage in the recesses 75, i.e. in the unadjusted state the catches 62 project into the recesses 75, and in the adjusted state the catches 62 can exit from the recesses 75. Preferably, the recess 75 is spherical crown shaped and the catch 62 is a ball.

In the example shown, the support 50 has a second through hole 53 in the form of a threaded hole, in which second through hole 53 an accommodation 60 forming a locking unit is accommodated. The receptacle 60 is a cylindrical body 61 and has a blind hole 64, wherein the body 61 is threaded on its outer circumference. The ball is at the open side of the blind hole 64 and a spring 65 is arranged in the blind hole 64, the two ends of which spring act on the bottom side of the blind hole 64 and the ball, respectively. The spring is in particular a compression spring. The accommodating portion 60 is provided with an in-line recess 63 at a side thereof opposite to the opening side. Therefore, the receiving portion 60 can be fitted into the supporting portion 50 by inserting a tool into the recess 63 and screwing.

At the start of adjustment, the chuck 73 is rotated, the ball is pressed and retracts into the blind hole 64, and the spring is thereby compressed. As the chuck 73 rotates, the ball may exit the occupied pocket 60. As the chuck continues to rotate, the ball may again extend from recess 60 under the spring force of the spring to occupy the next adjacent recess. This process is cycled until the adjustment is complete. During this time, the movement of the ball is tactilely perceptible, which is advantageous for the adjustment. Furthermore, the spherical design is advantageous to reduce friction, thereby extending the life of the device.

The plurality of recesses 75 may be annularly provided in the circumferential direction of the chuck 73. Although individual recesses 75 are shown spaced apart from one another in the drawings, they may also be immediately adjacent to one another, i.e., there is no circumferential spacing between adjacent recesses, which may allow for finer adjustment.

The base plate 3 may also be provided with a third through hole 35 for mounting the base plate 3, for example on a mounting bracket. For this reason, it is only necessary to pass the screw through the third through hole and perform the screwing operation. The number of the third through holes 35 may be set as desired.

It is to be noted that the base plate 3 may also be a component of the device itself on which the above-mentioned clamping device 1 is mounted. For example, if the clamping device 1 is used in a pole-disc type aircraft, the base plate 3 may be the housing of the steering wheel.

Thus, if such a clamping device according to the utility model is mounted on the steering wheel of a stick-pan type aircraft, in use, the pilot can adjust the clamping device on the basis of his own height, so that a comfortable viewing angle can be obtained for him.

In the clamping device proposed according to the utility model, by operating the rotary handle of the actuating unit, a movement of the rack relative to the gear wheel is caused, whereby the carrier plate of the clamping device is rotated relative to the base plate in order to change the position of the carrier plate. The multi-angle adjustment of the supporting plate can be realized by arranging the rack with a plurality of teeth. The angle of the supporting plate can be adjusted and the supporting plate can be fixed at a corresponding angle by the aid of the retractable clamp relative to the recessed portion under the action of the spring. The locking unit of the clamping device according to the utility model is more durable than the known spring lamellae.

In using the clamping device according to the present invention, an object to be clamped, for example, a document, is first placed between the clamping unit and the pallet, and then the rotation handle is adjusted to move the rack relative to the gear so as to rotate the pallet to a desired position. The fixing mode of the clamping tool is reliable and the use is convenient.

Many modifications and variations of the present invention are possible in light of the above teachings, and may be apparent to those skilled in the art. The scope of the utility model is defined by the claims.

Claims

1. A clamping device (1) comprising:

a pallet (2) having a flat first surface (21) and a second surface opposite to the first surface, said first surface being provided with a clamping unit (4) for clamping an object to be clamped;

a base plate (3), on which base plate (3) the pallet (2) is mounted by means of a rotary shaft (8) extending parallel to its surface, such that the pallet (2) can be rotated relative to the base plate (3),

it is characterized in that the preparation method is characterized in that,

the clamping device (1) further comprises an actuating unit (6) arranged between the carrier plate (2) and the base plate (3) on the side remote from the axis of rotation (8), by operating the actuating unit (6) the angle of the carrier plate (2) relative to the base plate (3) can be changed.

2. The clamping device (1) according to claim 1, characterized in that the actuating unit (6) comprises a toothed rack (43) provided on one of the pallet (2) and the base plate (3) and a toothed wheel (72) provided on the other of the pallet (2) and the base plate (3), the toothed rack (43) and the toothed wheel (72) being in engagement with each other.

3. Clamping device (1) according to claim 2, characterized in that the carrier plate (2) or the base plate (3) is provided with a support (50), the gear wheel (72) being provided at the support (50), wherein a rotary handle (71) rotating integrally with the gear wheel (72) is provided at the side of the gear wheel (72) facing the outside of the clamping device (1).

4. Clamping device (1) according to claim 3, characterized in that a chuck (73) rotating integrally with the gear wheel (72) is provided on the side of the gear wheel (72) facing the inside of the clamping device (1), wherein the chuck (73) is coaxial with the gear wheel (72) and the knob (71) and is configured to be able to lock the position of the rack (43) and the gear wheel (72) when the rack (43) and the gear wheel (72) are fitted together.

5. The clamping device (1) according to claim 4, characterised in that the chuck (73) is formed with a plurality of recesses (75) on its surface facing the support (50), the support (50) being provided with retractable catches (62), wherein the catches (62) can engage into the recesses (75).

6. Clamping device (1) according to claim 5, characterized in that the recess (75) is of spherical crown shape and the clip (62) is of spherical body.

7. Clamping device (1) according to claim 6, characterized in that the support (50) has a second through hole (53) in the form of a threaded hole, in which second through hole (53) a receiving part (60) is received, which receiving part (60) has a blind hole (64), the ball being at the open side of the blind hole (64), in which blind hole (64) a spring (65) is arranged, the two ends of which respectively act on the bottom side of the blind hole (64) and on the ball.

8. The clamping device (1) according to claim 5, characterized in that the plurality of recesses (75) are arranged annularly in the circumferential direction of the chuck (73).

9. Clamping device (1) according to one of the claims 2 to 8, characterized in that the toothed rack (43) is circular-arc-shaped.

10. Clamping device (1) according to one of the claims 1 to 8, characterized in that a third through hole (35) is provided on the base plate (3) for fitting the base plate (3).

11. An aircraft, characterized in that it has a clamping device (1) according to any one of claims 1 to 10.

12. The aircraft according to claim 11, characterized in that the floor (3) is a component of the aircraft.