CN2589797Y

CN2589797Y - Instrument tripod having buffer chamber

Info

Publication number: CN2589797Y
Application number: CN 02293111
Authority: CN
Inventors: 钱仁建; 吴佛根
Original assignee: CHANGZHOU JINLI OPTICAL INSTRUMENT Co Ltd
Current assignee: CHANGZHOU JINLI OPTICAL INSTRUMENT Co Ltd
Priority date: 2002-12-26
Filing date: 2002-12-26
Publication date: 2003-12-03
Anticipated expiration: 2012-12-26

Abstract

The utility model relates to an instrument tripod with a buffering chamber, which comprises a foot rack device composed of a foot seat, a supporting rod, a foot rod which is inserted into the supporting rod and is retractable and a locking member fixing the supporting rod and the foot rod, a lifting device composed of a lifting bottom plate fixedly connected to the foot seat, a lifting seat, a lifting pipe passing through the foot seat, a lifting connecting pipe which is arranged in the lifting pipe and can relatively move, and a control mechanism controlling the up-and-down move of the lifting pipe, and a cloud platform device composed of a cloud platform seat which is fixedly connected to the top of the lifting connecting pipe, a cloud platform, and a gear transmission mechanism controlling the rotation of a connecting shaft. The bottom of the lifting pipe is fixedly connected with a lower rubber bowl. A damping sheet which can close or open a small hole is arranged on the upper part of the small hole at the top of the lower rubber bowl. The lower part of the lifting connecting pipe is also connected with an upper rubber bowl. An air current buffering chamber is formed among the upper rubber bowl, the lower rubber bowl and an inner cavity of the lifting pipe and the lifting connecting pipe can be slowly fallen in the lifting pipe by the air current buffering chamber to protect an instrument. The instrument tripod has the characteristics of simple structure and portable operation.

Description

The instrument tripod of band buffer cell

Technical field

The utility model relates to the instrument tripod that a kind of height can be regulated, and especially relates to a kind of instrument tripod that has buffer cell.

Background technique

Present disclosed instrument tripod, mainly by retractable foot rest part, The Cloud Terrace is risen or the lifting part that descends and the The Cloud Terrace of support equipment partly constitute.Lifting part is mainly by fall way be inserted in its pipe telescopic lifting and take over and constitute, because of the lifting adapter partly is connected with instrumented The Cloud Terrace, so after placing equipment on the The Cloud Terrace, in the time of will regulating height of instrument again, just must hold the lifting adapter earlier and carry out lift adjustment, otherwise handle because of carelessness, lifting is taken under equipment and the action of gravity of itself, glides rapidly in fall way and causes the damage of equipment.

Summary of the invention

The purpose of this utility model provide a kind of simple in structure, operation is light, and the instrument tripod of the band buffer cell that can slowly land is taken in lifting in fall way.

The purpose of this utility model is to realize by following technological scheme: a kind of instrument tripod with buffer cell comprises by runners, pole, is plugged in the pole and telescopic foot lever and the fixing leg means that constitutes of the locking element of pole and foot lever; By the lifting base plate and the elevating bracket that are fixedly connected on the runners, pass runners fall way, be arranged in the fall way and lowering or hoisting gear that relatively-movable lifting is taken over and the control fall way moves up and down operating mechanism constitutes; Take over the cradle head device that gear drive that the The Cloud Terrace seat at top and The Cloud Terrace and control connection axle rotate constitutes by being fixedly connected on lifting, it is characterized in that: the fall way bottom is fixedly connected with down cup, and the top of down cup pore is provided with the damping fin that can close or open pore, the bottom that lifting is taken over also is connected with leather cup, and goes up and form the air-flow buffer cell between leather cup, down cup and the fall way inner chamber.

Working principle of the present utility model is: by the air-flow buffer cell that constitutes between upper and lower leather cup and the fall way, take in the uphill process in lifting, the damping fin on down cup pore top is being subjected to open pore under the lifting inner air tube suction, and then air enters fall way from the bottom of fall way and by pore; When lifting is taken at himself gravity or/and under the effect of instrument gravity; when in fall way, descending; at first the damping fin on the down cup pore is subjected to the effect of stream pressure in the fall way; damping fin is pressed on the pore on the down cup; form an air-flow buffer cell between lifting adapter this moment and the fall way; air is taken over connection part from the bottom of fall way and fall way and lifting and is slowly discharged, and lifting is taken over can slowly descend under the effect of resistance of air, plays the effect of protection instrument.

The utility model adopts the advantage after the technique scheme to be: 1, the utility model is under the prerequisite that does not change fall way and lifting joint pipe structure, only needing bottom to install upper and lower two leather cups respectively additional respectively in fall way and lifting adapter, realize damped motion by pore on the down cup and the damping fin on the pore, not only simple in structure, and mounting or dismounting are also comparatively convenient.2, the utility model is controlled the turnover of lifting inner air tube by the action of damping fin, can realize that lifting is taken over to rise rapidly and slowly descend, and handles light.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the sectional structure schematic representation of the A-A of Fig. 1.

Fig. 3 is that Fig. 1 lifting adapter is connected outer structure for amplifying schematic representation with fall way.

Embodiment

See the instrument tripod of the buffer cell of band shown in Fig. 1～3, comprise leg means, the lowering or hoisting gear at middle part and the cradle head device on top of bottom.Leg means by runners 4, pole 3, be plugged in the pole 3 and telescopic foot levers 1 and fixedly the locking element 2 of pole 3 and foot lever 1 constitute.

Lowering or hoisting gear is made up of lifting base plate 6, elevating bracket 7, fall way 9, lifting adapter 11 and operating mechanism.At the bottom of the lifting 6 and elevating bracket 7 be fixedly connected on the runners 4 by fastening piece, and be respectively equipped with seal ring 5,8 between the pipe outer wall of the top of the bottom of lifting base plate 6 and elevating bracket 7 and fall way 9, to guarantee the operating mechanism proper functioning.Fall way 9 passes runners 4, lifting adapter 11 is arranged in the fall way 9 and can moves up and down, fall way 9 bottoms are fixedly connected with down cup 29, and the top of down cup 29 pore 29-2 is provided with the damping fin 30 that can close or open pore 29-2, for improving the manufacturability of assembling, base 31 also is equipped with in the bottom of fall way 9, and down cup 29 is fixedly connected on the fall way 9 by pivot pin and base 31, and down cup 29 top periphery have cone seal baffle ring 29-1.The bottom of lifting adapter 11 also is connected with leather cup 28, form the air-flow buffer cell between last leather cup 28, down cup 29 and fall way 9 inner chambers, automatically control the action of damping fin 30 by air-flow, make down cup 29 pore 29-2 be in the state of inspiration or exhausting air, and realize that smoothly lifting takes over that 11 direct motions are pulled out or slowly descend, the pore 29-2 size of down cup 29, also the may command lifting took over for 11 times that descend.See that the leather cup 28 of going up shown in Figure 3 takes over 11 by anti-wearing liner 27 and lifting and fixedly connected, anti-wearing liner 27 is Spielpassung with the inwall of fall way 9, the lower periphery of last leather cup 28 has cone seal baffle ring 28-1, the cone seal baffle ring 28-1 of leather cup 28 and fall way 9 inner tubal walls join and seal on lifting is taken in 11 uphill process, and can further play damping function in fall way 11 decline processes.

See Fig. 1, operating device of the present utility model comprises operating grip 26, the connecting rod 25 that links to each other with operating grip 26, the screw rod 22 that is connected with connecting rod 25, be arranged on wear-resistant sleeve 23 and gear 24 in the screw rod 22, gear 24 respectively with the tooth bar engagement of a side of screw rod 22 and fall way 9, by handling screw rod 22, driven gear 24 is made circular movement, the fall way 9 that meshes with gear 24 is axially moved up and down, for preventing fall way 9 axial rotation, the opposite side of fall way 9 has and the corresponding guiding groove 9-1 of lifting base plate 6 positioning convex, make fall way 9 and lifting base plate 6 keep correct position, fall way 9 is fixing by clamp ring 10 with lifting adapter 11.

The utility model is seen Fig. 1, shown in 2, the The Cloud Terrace seat 13 at 11 tops is taken in lifting to cradle head device and the gear drive of The Cloud Terrace 17 and 15 rotations of control connection axle constitutes by being fixedly connected on, lifting adapter 11 is connected with The Cloud Terrace seat 13 by connecting sleeve 12, The Cloud Terrace 17 is fixedly connected on the The Cloud Terrace seat 13, in The Cloud Terrace 17 and the The Cloud Terrace seat 13 gear drive is housed, this gear drive comprises intermeshing initiative taper tooth 33 and by mantle tooth 20, by the central gear 21 of intermediate gear 20 with driving gear 18 engagements, coaxial by mantle tooth 20 with driving gear 18, top has the coupling shaft 15 and 21 coaxial connections of central gear with the instrument connecting thread, central gear 21 bottoms have axle sleeve 16, and the bottom of coupling shaft 15 is inserted in the axle sleeve 16, be provided with Returnning spring 14 between axle sleeve 16 and the The Cloud Terrace seat 13, by the rotation adjusting nut, coupling shaft 15 is axially rotatablely moved, the instrument that locking is placed, when instrument is placed on the The Cloud Terrace 17 and during misalignment coupling shaft 15, coupling shaft 15 is moving down under the effect of gravity and is compressing Returnning spring 14 on the axle sleeve 16, intermediate gear 20 and central gear 21 engagement still, the knob 32 that operation is connected with initiative taper tooth 33 is fixedlyed connected coupling shaft 15 with the tapped hole of instrument bottom.

Claims

1, a kind of instrument tripod with buffer cell comprises by runners (4), pole (3), is plugged in the pole (3) and the telescopic foot lever (1) and the fixing leg means of locking element (2) formation of pole (3) and foot lever (1); By the lifting base plate (6) and the elevating bracket (7) that are fixedly connected on the runners (4), pass runners (4) fall way (9), be arranged in the fall way (9) and the lowering or hoisting gear that operating mechanism that (11) and control fall way (9) move up and down constitutes is taken in relatively-movable lifting; Take over the cradle head device of the gear drive formation that the The Cloud Terrace seat (13) at (11) top and The Cloud Terrace (17) and control connection axle (15) rotate by being fixedly connected on lifting, it is characterized in that: fall way (9) bottom is fixedly connected with down cup (29), and the top of down cup (29) pore (29-2) is provided with the damping fin (30) that can close or open pore (29-2), the bottom that (11) are taken in lifting also is connected with leather cup (28), and goes up and form the air-flow buffer cell between leather cup (28), down cup (29) and fall way (9) inner chamber.

2, the instrument tripod of band buffer cell according to claim 1, it is characterized in that: the described leather cup (28) of going up is fixedlyed connected by the bottom of anti-wearing liner (27) and lifting adapter (11), and anti-wearing liner (27) is Spielpassung with the inwall of fall way (9), and the bottom of last leather cup (28) has cone seal baffle ring (28-1).

3, the instrument tripod of band buffer cell according to claim 1, it is characterized in that: base (31) is equipped with in the bottom of described fall way (9), down cup (29) is fixedlyed connected with fall way (9) with base (31) by pivot pin, and down cup (29) top has cone seal baffle ring (29-2).

4, the instrument tripod of band buffer cell according to claim 1, it is characterized in that: the screw rod (22) that described operating device comprises operating grip (26), be connected with operating grip (26) by connecting rod (25), be arranged on wear-resistant sleeve (23) and gear (24) in the screw rod (22), gear (24) respectively with the tooth bar engagement of a side of screw rod (22) and fall way (9), the opposite side of fall way (9) has and the corresponding guiding groove of lifting base plate (6) positioning convex (9-1), and fall way (9) is connected by clamp ring (10) locking with lifting adapter (11).

5, according to the instrument tripod of claim 1 or 4 described band buffer cells, it is characterized in that: be respectively equipped with seal ring (5), (8) between the outer wall of described lifting base plate (6) and elevating bracket (7) and fall way (9).

6, the instrument tripod of band buffer cell according to claim 1, it is characterized in that: described gear drive comprises intermeshing initiative taper tooth (33) and by mantle tooth (20), by the central gear (21) of intermediate gear (20) with driving gear (18) engagement, the coupling shaft (15) that top has screw thread is connected with central gear (21), and coupling shaft (15) bottom is inserted in the axle sleeve (16) of central gear (21) bottom, and is provided with Returnning spring (14) between axle sleeve (16) and the The Cloud Terrace seat (13).