CN200965139Y - Quick tripod adjustment device - Google Patents

Abstract

A fast foot rest adjusting device comprises a buckle cover, a base cover, a buckle and a control device, wherein the buckle cover is provided with a reverse concave sleeving chamber; the fastener is provided with at least three petals which are annularly arranged outside the frame rod, and the petals are forced by the inverted concave sleeving chamber to be engaged with the frame rod; the control device is provided with at least one gasket, at least one elastic component, a pull rod and a pull wire, wherein the gasket is attached to the bottoms of the petals, two ends of the elastic component are respectively abutted against the gasket and the base cover, and the pull rod is connected to the gasket and the pull wire. The petals increase the area of the meshed frame rod, so that the clamping force is increased, and the support is more stable. The stay wire is used for controlling the lifting of the petals, so that the petals are stressed uniformly and are prevented from being abraded, the stay wire can be connected with a control handle, and the position of the stay wire can be set according to the habit of a user.

Description

Quick tripod adjustment device

technical field

The utility model relates to a quick tripod adjustment device, in particular to a tripod adjustment device for quickly adjusting the height of stairs, work ladders, instruments, equipment or furniture tripods.

Background technique

Known tripod adjustment device, such as Taiwan Patent Publication No.: 175177 (announcement date: December 11, 1991) discloses a kind of "quick tripod adjustment device", which has a hollow foot, on which is The installed working object is used to support the working object, and its lower end is combined with the base cover or buckle cover: the quick tripod adjustment device is characterized by: a base cover with a through hole, and a base cover with a through hole on it. There is a joint part through which the frame rod can pass through so that the base cover can move on the frame rod; a buckle cover with a through hole is provided with a joint part and an inverted recessed chamber; the through hole The hole allows the frame rod to pass through, and the buckle cover can move on it; and the joint part can be combined with the joint part on the base cover, so that it can move on the frame rod with the base cover at the same time; one consists of two petals The fastener formed by the flap is located between the base cover and the buckle cover, and the inner edge of the two petals is provided with an engaging part; while its outer edge forms an oblique cone surface; Under the pressure of the chamber, the two petals are close together, so that the fastener can be fixed on a position on the frame bar by means of the engaging part; a control device is provided with a movable block and a transmission rod; the movable card The block is set between the fastener and the base cover, and the transmission rod is connected to the movable block; through the transmission rod, the relative state of the movable block and the fastener can be controlled, so that the space between the clamp and the fastener can be changed , so that the fastener is forced to slightly close the frame bar under the pressure beam of the buckle cover's concave chamber, or loosen the concave chamber.

In the above-mentioned conventional tripod adjustment device, the engagement area between the fastener formed by the two petals and the stand foot is too small, resulting in insufficient clamping force. The movable block rotatably abuts against the bottom of the fastener, which will cause wear and tear on the movable block and the bottom of the flap during long-term use, affecting the adjustment effect of the tripod.

Therefore, the author of the present invention feels that the above-mentioned deficiency can be improved, and Naite devoted himself to research and combined with the application of theories, and finally proposed a utility model with a reasonable design and effectively improved the above-mentioned deficiency.

Utility model content

The main purpose of the utility model is to provide a quick tripod adjustment device, the petals increase the area engaged with the stand rod, thereby increasing the clamping force and making the support more stable. Utilizing the pull wire to control the lifting of these flaps can make the stress on these flaps uniform and prevent wear and tear, and the pull wire can be connected with a control handle, and its position can be set according to the user's habit.

In order to achieve the above purpose, the utility model provides a quick tripod adjustment device, which is arranged under the support device, including: a stand foot, which is hollow; a buckle cover, which is combined with the stand foot, and the buckle cover is provided There is a recessed chamber; a base cover, which is sleeved on the buckle cover; a frame rod, which is slidably installed on the frame foot, the buckle cover and the base cover; a fastener, which is arranged on the base cover Between the foot and the stand, the fastener has at least three petals, and these petals are arranged on the outside of the frame bar. The inner edges of these petals are provided with engaging parts, and the outer edges of these petals form oblique cones. The undercut The chamber is pressed against the tapered surface to make the petals close, and the engaging portion is engaged with the frame rod; and a control device, which has at least one gasket, at least one elastic component, a pull rod and a pull wire, the The gasket and the elastic component are arranged between the fastener and the base cover, the gasket abuts against the petals, the two ends of the elastic component respectively abut against the gasket and the base cover, and the pull rod is pivoted on Below the base cover, the pull rod is connected to the spacer and the pull wire.

The utility model has the following beneficial effects: the utility model mainly increases the area where the petals are engaged with the frame bar, thereby increasing the clamping force and making the support more stable. Utilizing the pull wire to control the lifting of these petals can make the stress on these petals uniform and prevent wear and tear, and the pull wire can be connected with a control handle, and its position can be set according to the user's habit.

In order to enable a further understanding of the features and technical content of the utility model, please refer to the following detailed description and accompanying drawings of the utility model, but the accompanying drawings are for reference and illustration only, and are not intended to limit the utility model .

Description of drawings

Fig. 1 is a perspective view of the first embodiment of the quick tripod adjustment device of the present invention.

Fig. 2 is a three-dimensional exploded view of the first embodiment of the quick tripod adjustment device of the present invention.

FIG. 3A is a schematic diagram (1) of the use state of the first embodiment of the quick tripod adjustment device of the present invention.

Fig. 3B is a schematic diagram (2) of the use state of the first embodiment of the quick tripod adjustment device of the present invention.

Fig. 4 is an appearance diagram of the practical application of the first embodiment of the quick tripod adjustment device of the present invention.

Fig. 5 is an appearance diagram of the practical application of the second embodiment of the quick tripod adjustment device of the present invention.

Explanation of main component symbols

1 support device

2 feet

21 Combination department

22 Anchor bolts

23 Fixed part

3 buckle cover

31 Inverted concave chamber

4 base cover

41 junction

42 base cover bolts

43 Guidance Department

44 pivot joint

5 poles

51 connector

52 foot pads

53 thread

6 fasteners

61 petals

611 Engagement part

612 oblique cone

62 Elastic bundles

63 twisted part

631 groove

632 bump

7 control device

71 Gasket

72 Elastic components

73 pull rod

731 riveted column

732 Nut

733 Pivot

74 lead screw

75 pull wire

76 handle

77 bolts

Detailed ways

Please refer to Fig. 1, 2, 3A, 3B and Fig. 4, the utility model provides a quick tripod adjustment device, which is arranged under the support device 1, including: a stand foot 2, a buckle cover 3, a base Cover 4, a frame rod 5, a fastener 6 and a control device 7. In this embodiment, the supporting device 1 is a working ladder.

The stand 2 is a hollow shell with an upper opening, and a combination part 21 is formed inside the stand 2. The foot of the support device 1 is inserted into the combination part 21, and the stand bolt 22 is used to penetrate the stand. The feet 2 are locked to the support device 1 to fix the support device 1 to the assembly part 21 . A fixing portion 23 is disposed outside the stand 2 , and the control device 7 is fixed to the fixing portion 23 .

The buckle cover 3 is integrally formed under the stand foot 2. The buckle cover 3 is a cover body with an opening at the bottom. The inside of the buckle cover 3 forms a recessed chamber 31. The front edge of the recessed chamber 31 is obliquely cone-shaped. , so as to compress the fastener 6.

The base cover 4 is a shell with an upper opening, and the inside of the base cover 4 is provided with a joint portion 41. The lower half of the buckle cover 3 is tightly fitted to the joint portion 41, and the base cover bolts 42 penetrate through the base cover 4 and are pressed and fixed. The buckle cover 3 is set so that the base cover 4 is sleeved and fixed on the lower half of the buckle cover 3 . In addition, the side wall of the base cover 4 extends outward to form a guide portion 43 , and the bottom of the base cover 4 extends downward to form a pivot portion 44 , the control device 7 is controlled by the guide portion 43 and the pivot portion 44 . It is arranged outside the base cover 4 .

The frame rod 5 is slidably installed on the frame foot 2, the buckle cover 3 and the base cover 4, and a circular joint 51 is provided at the bottom of the frame rod 5, and a foot pad 52 is connected to the joint 51 for Bear the weight of the supporting device 1 . The outside of the frame rod 5 is provided with a thread 53 , and the frame rod 5 is engaged with the fastener 6 through the thread 53 , so that the frame rod 5 is fixed and cannot be moved.

The fastener 6 is disposed between the base cover 4 and the stand 2 , and the fastener 6 has three flaps 61 and an elastic bundle 62 . These petals 61 are arranged around the outside of the frame rod 5, and a twisted portion 63 is respectively arranged between these petals 61, and the twisted portion 63 has a semicircular groove 631 and a semicircular protrusion. 632, the groove 631 and the protrusion 632 are respectively arranged on opposite sides of the petal 61, and the groove 631 on one of the petals 61 cooperates with the protrusion 632 on the other petal 61, so that The petals 61 can swing in and out by using the twisted parts 63 as fulcrums. The inner edges of these petals 61 are provided with engagement parts 611, and the outer edges of these petals 61 form oblique cones 612. When the control device 7 pushes up these petals 61, the inverted concave chamber 31 is pressed against the oblique cone. The surface 612 makes the lower half of the petals 61 lean inward, so that the engaging portion 611 engages with the thread 53 of the rod 5 . The elastic bundle 62 is an elastic rubber ring, and the elastic bundle 62 is sheathed near the upper end of the petals 61 so that the upper half of the petals 61 have the strength to lean inward.

The control device 7 has a washer 71 , two elastic components 72 , a Y-shaped pull rod 73 , a guide screw 74 penetrating in the middle, a pull wire 75 and a control handle 76 . The elastic component 72 is a spring, the gasket 71 and the elastic components 72 are arranged between the fastener 6 and the base cover 4, the gasket 71 is attached to the bottom of the petals 61, and the elastic components 72, The lower two ends respectively abut against the spacer 71 and the base cover 4 to provide the compound momentum for the upward movement of the flaps 61 . The pull rod 73 is pivotally arranged on the pivot joint 44 below the base cover 4 via a pivot shaft 733. The pull rod 73 has two riveting posts 731 and two nuts 732. One ends of these riveting posts 731 pass through the pull rod 73 in sequence. , the bottom of the base cover 4 and the elastic components 72 are riveted and fixed to the gasket 71, and the nuts 732 are fastened and fixed to the other end of the riveted posts 731, and the nuts 732 lean against the pull rod 73, The pull rod 73 is connected to the washer 71 . The guide screw 74 is locked to the guide portion 43 of the base cover 4, the stay wire 75 is threaded through the guide screw 74, and one end of the stay wire 75 passes through the guide screw 74 and is connected to the pull rod 73. The pull wire 75 makes the pull rod 73 swing, and then drives the gasket 71 to move downward, so that the flap 61 of the fastener 6 moves downward without being pressed by the concave chamber 31 of the buckle cover 3 . The control handle 76 is locked and fixed to the fixed part 23 of the stand 2 by a bolt 77, and the control handle 76 is connected to the other end of the stay wire 75, so as to facilitate pulling the stay wire 75 by pulling the control handle 76 by hand; By above-mentioned composition to form the quick tripod adjusting device of the present utility model.

During use, pull the control handle 76 of the control device 7 to make the pull wire 75 pull the pull rod 73 to swing, drive the pads 71 to move down and compress the elastic components 72, and make the flaps 61 of the fastener 6 move down. The upper half of these flaps 61 are pressed inwardly by the action of the elastic beam 62, and the engaging parts 611 of these flaps 61 are loosened and not engaged with the buckle cover 3. Frame bar 5, this moment, the position of this frame bar 5 can move up and down according to user's needs and adjust. After the adjustment of the position of the frame bar 5 is confirmed, the control handle 76 is released, and the pulling force of the stay wire 75 disappears. Utilize the tension force of these elastic components 72 to push these flaps 61 and the pads 71 to move upwards and reset, so that these flaps 61 are pressed. The concave chamber 31 is pressed tightly, and the lower half is inwardly engaged, and the engaging portion 611 is engaged with the frame rod 5 , and the frame rod 5 is fixed in position and cannot be moved.

Please refer to Fig. 5, which is the second embodiment of the present utility model, which is different from the first embodiment in that the foot of the support device 1 is hollow, and the fixing part 23 is arranged at a higher position of the foot of the support device 1 Position, the control handle 76 is arranged on the fixing part 23, the pull wire 75 runs through the bottom of the stand 2 and is connected to the control handle 76 along the foot of the support device 1, so that the user can move on the support device 1 without bending over. The foot seat pulls the control handle 76 to adjust the position of the stand foot 2 .

The fastener 6 of the present invention engages the frame rod 5 with three petals 61, so that the area engaged with the frame rod 5 is increased, thereby increasing the clamping force and making the support more stable. Utilize the pulling force of this stay wire 75 and the tension force of these elastic components 72, make this pad 71 move up and down, and then control these petals 61 lifting, can make these petals 61 be stressed evenly and avoid generation wear and tear, and this stay wire 75 can connect A control handle 76, its position can be set according to user's habit.

However, the above description is a preferred feasible embodiment of the utility model, and therefore does not limit the patent scope of the utility model, so all equivalent structural changes made by using the specification and drawings of the utility model are included in the same way Within the scope of the present utility model, it is stated together.

Claims (13)

1. A quick tripod adjustment device, which is arranged below the support device, is characterized in that: the quick tripod adjustment device includes: A leg, which is hollow; A buckle cover, which is combined with the stand foot, and the buckle cover is provided with an inverted recessed chamber; a base cover, which is sleeved on the buckle cover; a frame rod, which is slidably mounted on the frame foot, the buckle cover and the base cover; A fastener, which is arranged between the base cover and the stand foot, the fastener has at least three petals, and these petals are arranged around the outside of the pole, and the inner edges of these petals are provided with engaging parts, and these petals The outer edge forms a tapered surface, and the inverted concave chamber is pressed against the tapered surface to make the petals close, and the engaging part is engaged with the frame rod; and A control device, which has at least one gasket, at least one elastic component, a pull rod and a pull wire, the gasket and the elastic component are arranged between the fastener and the base cover, and the gasket is attached to these petals , two ends of the elastic component respectively abut against the pad and the base cover, the pull rod is pivotally arranged under the base cover, and the pull rod is connected to the pad and the pull wire. 2. The quick stand adjustment device according to claim 1, wherein a combination part is formed inside the stand leg, and the supporting device is inserted and fixed to the combination part. 3. The quick stand adjustment device according to claim 1, wherein a joint is provided at one end of the stand, and a foot pad is connected to the joint. 4. The quick stand adjustment device according to claim 1, wherein the buckle has an elastic strap, and the elastic strap is sheathed on the outside of the petals. 5. The quick stand adjustment device according to claim 1, characterized in that: each of the petals is provided with a twisted part, and the petals swing in and out with the twisted part as a fulcrum. 6. The quick stand adjustment device as claimed in claim 5, wherein the twisted portion has a groove and a bump, and the groove and the bump are respectively arranged on opposite sides of the flap, The grooves on one flap correspond to the projections on the other flap. 7. The quick stand adjustment device as claimed in claim 1, wherein the control device has a control handle, and the control handle is connected to the pull wire. 8. The quick stand adjustment device according to claim 7, characterized in that: a fixing part is provided outside the stand leg, and the control handle is arranged on the fixing part. 9. The quick stand adjustment device according to claim 7, characterized in that: the supporting device is provided with a fixing part, and the control handle is arranged on the fixing part. 10 . The quick stand adjustment device according to claim 1 , wherein a pivot joint is provided under the base cover, and the pull rod is pivotally mounted on the pivot joint. 11 . 11. The quick stand adjustment device according to claim 1, wherein the elastic component is a spring. 12. The quick tripod adjustment device according to claim 1, characterized in that: the pull rod has two riveting posts and two nuts, the control device has two elastic components and a gasket, and one end of these riveting posts respectively The sequence runs through the pull rod and these elastic components, and is riveted and fixed on the spacer, and these nuts are locked and attached to the other end of these riveted posts. 13. The quick stand adjustment device according to claim 1, characterized in that: the base cover is provided with a guide part, the control device has a guide screw, and the guide screw is locked to the guide part, the The pull wire passes through the lead screw and is connected to the pull rod.

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