阅读说明：本技术 一种可调节梯腿的新型梯子 (Novel ladder with adjustable ladder legs ) 是由 袁林江 张力戈 赵天鑫 郑泽涛 赵袁东 于 2020-11-18 设计创作，主要内容包括：本发明提供了一种可调节梯腿的新型梯子,属于生活用品技术领域,它解决了现有的梯子无法在不平整的地面平衡站立的情况,本种可调节梯腿的新型梯子,包括梯子和两个对称设置在梯子上的梯腿,两个梯腿分别可沿着梯子高度方向进行上下移动,梯子上设置有横杠,横杠上设置有固定装置,固定装置用于同时锁定两个梯腿,两个梯腿上均设置有与固定装置连接的传动件,固定装置锁定传动件时梯腿固定,固定装置松开传动件时梯腿可活动,本发明能够对梯子两腿高度进行调节,且使用方便,操作简单,使用安全。(The invention provides a novel ladder capable of adjusting ladder legs, which belongs to the technical field of articles for daily use and solves the problem that the conventional ladder cannot stand on uneven ground in a balanced manner.)

1. The utility model provides a novel ladder of adjustable ladder leg, its characterized in that, the ladder leg includes ladder (1) and two ladder legs (2) that the symmetry set up on ladder (1), two ladder leg (2) can reciprocate along ladder (1) direction of height respectively, ladder (1) on be provided with whippletree (3), whippletree (3) on be provided with fixing device (4), fixing device (4) be used for locking two ladder legs (2) simultaneously, two ladder leg (2) on all be provided with driving medium (5) of being connected with fixing device (4), fixing device (4) when locking driving medium (5) ladder leg (2) fixed, fixing device (4) when loosening driving medium (5) ladder leg (2) mobile.

2. A novel ladder with adjustable ladder legs as claimed in claim 1, characterized in that said fixing means (4) comprises two symmetrical sets of transmission assemblies (6) and a locking assembly (7) between two transmission assemblies (6), said locking assembly (7) being adapted to lock the transmission assemblies (6), each set of said transmission assemblies (6) corresponding to a ladder leg (2), each said transmission assembly (6) comprising a transmission gear (8), a chain (9) and a brake gear (10), said transmission gear (8) being in mesh with the transmission member (5).

3. A novel ladder with adjustable ladder legs as claimed in claim 1, characterized in that the driving members (5) are splines.

4. A novel ladder with adjustable ladder legs as claimed in claim 2, characterized in that the driving gear (8) comprises two large gears and a small gear, the small gear is installed between the two large gears, the two large gears are used for meshing with tooth spaces, the small gear is used for installing the chain (9), and the braking gear (10) is in accordance with the driving gear (8).

5. The novel ladder with adjustable ladder legs as claimed in claim 2, wherein the locking assembly (7) comprises a locking spanner (11), a support rod (12), a lower pressing rod (13), a top slider (14), an upper gear clamping rod (15), a main rod (16), a lower gear clamping rod (17) and a cross slide rod (18), the main rod (16) penetrates through the lower gear clamping rod (17), the cross slide rod (18), the upper gear clamping rod (15), the top slider (14) and the support rod (12) to be fixedly connected with the locking spanner (11), and a clamping block (19) is fixedly connected to the bottom of the main rod (16).

6. The novel ladder with the adjustable ladder legs as claimed in claim 5, wherein sliding grooves (20) are formed in the upper gear clamping rod (15) and the lower gear clamping rod (17), the upper portion and the lower portion of the cross sliding rod (18) are movably connected with pulleys (21), the pulleys (21) are used for sliding in the sliding grooves (20), a cavity (22) is formed in the middle of the cross sliding rod (18), a first spring (23) is connected into the cavity (22) in a penetrating mode, the top of the first spring (23) is abutted to the upper gear clamping rod (15), and the bottom of the first spring (23) is abutted to the lower gear clamping rod (17).

7. A novel ladder with adjustable ladder legs as claimed in claim 5, characterized in that the bottom of the gear lower clamping rod (17) is fixedly provided with a groove (24) for clamping the clamping block (19).

8. A novel ladder with adjustable ladder legs as claimed in claim 1, characterized in that a second spring (25) is arranged inside the ladder (1) below the two legs, and the bottom of the second spring (25) is fixedly connected with the top of the ladder legs (2).

9. The novel ladder with adjustable ladder legs as claimed in claim 1, characterized in that the top of the ladder legs (2) is provided with at least four steel balls (26) respectively mounted on four sides of the top of the ladder legs (2), each steel ball (26) is connected with the inner middle of the ladder legs (2) through a third spring (27), the top of the ladder legs (2) is fixedly connected with a plastic block (28), and the plastic block (28) is used for fixing the position of the third spring (27).

10. A novel ladder with adjustable ladder legs as claimed in claim 1, characterized in that the bottom end of the ladder (1) is fixedly connected with a separable block (19).

Technical Field

The invention belongs to the technical field of articles for daily use, and particularly relates to a novel ladder with adjustable ladder legs.

Background

The existing ladder can only be used on flat ground due to the fact that two legs are fixed, cannot be used in sections such as steps or slopes, and has certain limitation.

In order to enable the traditional ladder to be used in sections such as steps or slopes, a cushion block needs to be cushioned at one lower end of the ladder to balance the ladder. When the ladder is used, a proper cushion block cannot be found quickly, and meanwhile, the ladder is unstable and is easy to cause danger.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provide a novel ladder with adjustable ladder legs.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a novel ladder of adjustable ladder leg, its characterized in that sets up the ladder leg on the ladder including ladder and two symmetries, two the ladder leg can reciprocate along ladder direction of height respectively, the ladder on be provided with the whippletree, the whippletree on be provided with fixing device, fixing device be used for locking two ladder legs simultaneously, two the ladder leg on all be provided with the driving medium of being connected with fixing device, fixing device locking driving medium when ladder leg is fixed, fixing device loosen the driving medium when ladder leg is mobile.

The working principle of the invention is as follows: when putting the ladder on the ground of unevenness, control fixing device and loosen the driving medium, then adjust the height of two ladder legs respectively for the ladder is whole to reach balanced, then control fixing device locking driving medium, and two ladder legs are locked, can't move about, thereby fix the ladder leg, and simple structure, it is safe in utilization, thereby make the ladder can be at the subaerial steady, the safe use of unevenness.

In the above novel ladder with adjustable ladder legs, the fixing device comprises two groups of symmetrical transmission assemblies and a locking assembly between the two transmission assemblies, the locking assembly is used for locking the transmission assemblies, each group of transmission assemblies corresponds to one ladder leg, each transmission assembly comprises a transmission gear, a chain and a brake gear, and the transmission gear is meshed with the transmission member.

In the novel ladder with adjustable ladder legs, the transmission parts are tooth grooves.

In the above-mentioned novel ladder of adjustable ladder leg, drive gear include two gear wheels and a pinion, the pinion is installed between two gear wheels, two the gear wheel be used for with the tooth's socket meshing, the pinion be used for installing the chain, brake gear and drive gear structure unanimous.

In foretell novel ladder of adjustable ladder leg, the locking subassembly under kelly and cross slide bar on locking wrench, bracing piece, depression bar, top slider, gear, the mobile jib with this run through gear lower kelly, cross slide bar, gear on kelly, top slider and bracing piece and locking wrench fixed connection, mobile jib bottom fixedly connected with fixture block.

In foretell novel ladder of adjustable ladder leg, gear on kelly and gear under the kelly inside spout that is provided with, the cross slide bar all swing joint have the pulley from top to bottom, the pulley be arranged in sliding in the spout, the cross slide bar in the middle of seted up the cavity, the cavity in through connection have first spring, first spring top and gear on kelly butt, first spring bottom and gear under the kelly butt.

In the above novel ladder with adjustable ladder legs, the bottom of the lower clamping rod of the gear is fixedly provided with a groove for clamping the clamping block.

In the novel ladder with the adjustable ladder legs, the second springs are arranged inside the lower portions of the two legs of the ladder, and the bottoms of the second springs are fixedly connected with the tops of the ladder legs.

In foretell novel ladder of adjustable ladder leg, ladder leg top be provided with four at least steel balls and install respectively in ladder leg top four sides, every the steel ball pass through third spring and the inside intermediate junction of ladder leg, ladder leg top fixedly connected with plastic block, the plastic block be used for the position of fixed third spring.

In the novel ladder with the adjustable ladder legs, the bottom end of the ladder is fixedly connected with the separated clamping block.

Compared with the prior art, the height adjusting device can adjust the heights of the two legs of the ladder, and is convenient to use, simple to operate and safe to use.

Drawings

Figure 1 is a schematic overall cross-sectional view of the present invention,

figure 2 is a schematic top view of a ladder leg according to the invention,

figure 3 is a schematic view of the drive gear of the present invention,

figure 4 is a schematic top view of a ladder leg according to the invention,

figure 5 is a schematic view of the drive gear of the present invention,

fig. 6 is an enlarged view of a portion a.

In the figure, 1, a ladder; 2. ladder legs; 3. a cross bar; 4. a fixing device; 5. a transmission member; 6. a transmission assembly; 7. a locking assembly; 8. a transmission gear; 9. a chain; 10. a brake gear; 11. locking the wrench; 12. a support bar; 13. a lower pressure lever; 14. a top slider; 15. a gear is clamped on the rod; 16. a main rod; 17. a gear lower clamping rod; 18. crossed sliding rods; 19. a clamping block; 20. a chute; 21. a pulley; 22. a cavity; 23. a first spring; 24. a groove; 25. a second spring; 26. steel balls; 27. a third spring; 28. a plastic block.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-5, a novel ladder with adjustable ladder legs comprises a ladder 1 and two ladder legs 2 symmetrically arranged on the ladder 1, wherein the two ladder legs 2 can move up and down along the height direction of the ladder 1 respectively, a cross bar 3 is arranged on the ladder 1, a fixing device 4 is arranged on the cross bar 3, the fixing device 4 is used for locking the two ladder legs 2 simultaneously, transmission pieces 5 connected with the fixing device 4 are arranged on the two ladder legs 2, the ladder legs 2 are fixed when the transmission pieces 5 are locked by the fixing device 4, and the ladder legs 2 are movable when the transmission pieces 5 are loosened by the fixing device 4.

In further detail, the fixing device 4 comprises two groups of symmetrical transmission assemblies 6 and a locking assembly 7 between the two transmission assemblies 6, the locking assembly 7 is used for locking the transmission assemblies 6, each group of transmission assemblies 6 corresponds to one ladder leg 2, each transmission assembly 6 comprises a transmission gear 8, a chain 9 and a brake gear 10, and the transmission gear 8 is meshed with the transmission member 5. In this setting, when placing the ladder on uneven road surface, higher one end ladder leg 2 upwards retracts, and ladder leg 2 drives drive gear 8 and rotates this moment, and chain 9 drives brake gear 10 and rotates, then adjusts fixing device 4 and pins brake gear 10 to make the ladder leg 2 of ladder both sides bottom fixed, reach the balance.

More specifically, the transmission member 5 is a tooth groove. In this setting, the tooth's socket meshes with drive gear 8, has promoted the stability of ladder leg 2 activity.

In further detail, the transmission gear 8 comprises two large gears and a small gear, the small gear is arranged between the two large gears, the two large gears are used for being meshed with the tooth space, the small gear is used for being provided with the chain 9, and the brake gear 10 is consistent with the transmission gear 8 in structure. In the arrangement, the two large gears are synchronously meshed with the tooth spaces, so that transmission is completed, the transmission is more stable, and the brake gear 10 and the transmission gear 8 are transmitted through the chain 9.

In more detail, the locking assembly 7 includes a locking wrench 11, a supporting rod 12, a lower pressing rod 13, a top slider 14, a gear upper clamping rod 15, a main rod 16, a gear lower clamping rod 17 and a cross slide rod 18, the main rod 16 penetrates through the gear lower clamping rod 17, the cross slide rod 18, the gear upper clamping rod 15, the top slider 14 and the supporting rod 12 to be fixedly connected with the locking wrench 11, and a clamping block 19 is fixedly connected to the bottom of the main rod 16. In the arrangement, when the locking wrench 11 is pressed down, the main rod 16 rises, the top slider 14 fixed on the main rod 16 also rises, the top slider 14 drives the inner end of the lower pressing rod 13 to rise, and the central fulcrum of the lower pressing rod 13 is fixed by the supporting rod 12, so that the outer end of the lower pressing rod 13 presses down the gear upper clamping rod 15; when the main rod 16 rises, the latch 19 at the bottom of the gear lower latch 17 is driven to rise, so that the gear upper latch 15 and the gear lower latch 17 synchronously move towards the center to latch the brake gear 10.

In a further elaboration, the gear upper clamping rod 15 and the gear lower clamping rod 17 are internally provided with sliding grooves 20, the cross sliding rod 18 is movably connected with pulleys 21 up and down, the pulleys 21 are used for sliding in the sliding grooves 20, a cavity 22 is formed in the middle of the cross sliding rod 18, a first spring 23 is connected in the cavity 22 in a penetrating mode, the top of the first spring 23 is abutted to the gear upper clamping rod 15, and the bottom of the first spring 23 is abutted to the gear lower clamping rod 17. In the arrangement, two ends of the cross slide bar 18 are respectively provided with a pulley 21 which slides in a sliding groove 20 of the gear upper clamping bar 15 to realize the up-and-down movement of the gear upper clamping bar 15 and the gear lower clamping bar 17, and the first spring 23 penetrates through a cavity 22 in the center of the cross slide bar 18, so that when the locking wrench 11 is pulled, the gear upper clamping bar 15 and the gear lower clamping bar 17 are separated from the brake gear 10 under the action of the first spring 23, thereby unlocking the fixing device 4 and enabling the ladder legs to move.

In more detail, the bottom of the gear lower clamping rod 17 is fixedly provided with a groove 24 for clamping the clamping block 19. In this setting, when mobile jib 16 carried fixture block 19 and moved upwards, fixture block 19 embedding is in recess 24, then drives gear lower calorie of pole 17 and moves upwards, has increased the stationarity that gear lower calorie of pole 17 moved upwards.

In a further elaboration, the second springs 25 are arranged inside the lower portions of the two legs of the ladder 1, and the bottoms of the second springs 25 are fixedly connected with the tops of the ladder legs 2. In this arrangement, the second spring 25 can block the ladder leg 2, avoiding the ladder leg to be completely embedded into the ladder leg 2.

In further detail, the top of the ladder leg 2 is provided with at least four steel balls 26 which are respectively arranged on four sides of the top of the ladder leg 2, each steel ball 26 is connected with the middle inside the ladder leg 2 through a third spring 27, the top of the ladder leg 2 is fixedly connected with a plastic block 28, and the plastic block 28 is used for fixing the position of the third spring 27. In this setting, when ladder leg 2 was inside to be removed at ladder 1, steel ball 26 and the inside roll connection of ladder 1, very big reduction ladder leg 2 and the inside frictional force of ladder 1.

In more detail, the bottom end of the ladder 1 is fixedly connected with a separable clamping block 19. In this setting, disconnect-type fixture block 19 can fill the gap between 1 bottom of ladder and the ladder leg 2, avoids ladder leg 2 to take place to incline in 1 inside of ladder, and has promoted ladder leg 2's stability.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although a large number of terms are used here more, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.