CN216866266U

CN216866266U - High-stability foundation pit guardrail

Info

Publication number: CN216866266U
Application number: CN202220318454.3U
Authority: CN
Inventors: 朱思颖; 姚启元
Original assignee: Qishilu Engineering Design Shanghai Co ltd
Current assignee: Qishilu Engineering Design Shanghai Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-07-01
Anticipated expiration: 2032-02-17

Abstract

The utility model discloses a high-stability foundation pit guardrail, which comprises a movable base with a trapezoidal cross section, wherein the periphery of the bottom end of the movable base is rotatably connected with movable wheels through two bearing seats, two sides of the top end of the movable base are slidably connected with two symmetrically-arranged guardrail plates through sliders with H-shaped vertical cross sections, and the high-stability foundation pit guardrail is different from the prior art in that four movable wheels can be conveniently and quickly positioned by utilizing a quick positioning mechanism, and simultaneously, ground nails can be inserted into the ground while the movable wheels are positioned, so that the stability of the guardrail is further improved, secondly, two guardrail plates can be conveniently unfolded by utilizing a folding mechanism, the adjustment of the length of the guardrail is conveniently realized, the guardrail can be adjusted and used according to different use requirements, the application range is wide, and moreover, a reflective safety warning board is utilized, can start the effect of fine safety warning for the guardrail can further play safety protection's effect.

Description

High-stability foundation pit guardrail

Technical Field

The utility model relates to the technical field of guardrails, in particular to a foundation pit guardrail with high stability.

Background

Along with the development of modern society, building construction is more and more frequent, no matter new development or old building maintenance, all need use the guardrail to prevent that the pedestrian from getting close to, especially during road construction, maintenance, the aspect generally takes the foundation ditch as the main, if do not install the guardrail, pedestrian or high-speed driving etc. can take place dangers such as drop, consequently often need install the guardrail and protect.

At present, current foundation ditch guardrail, its length is fixed, and inconvenient regulation that carries out length according to the in service behavior leads to the application scope limitation big, secondly, generally can establish in the bottom and remove the wheel, and the guardrail of being convenient for removes, but inconvenient fixes a position removal wheel, leads to guardrail stability not good enough, for this reason, we propose the foundation ditch guardrail of a high stability.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a foundation pit guardrail with high stability so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a high-stability foundation pit guardrail comprises a moving base with a trapezoidal-shaped structure in vertical section, wherein moving wheels are rotatably connected to the periphery of the bottom end of the moving base through two bearing seats, two symmetrically arranged guardrail plates are slidably connected to two sides of the top end of the moving base through sliders with I-shaped vertical sections, sliding grooves matched with the sliders are formed in two sides of the top end of the moving base, quick positioning mechanisms arranged on the moving base are arranged on one sides of the moving wheels, and folding and unfolding mechanisms are connected between the two sliders and the moving base;

the folding and unfolding mechanism comprises a cavity arranged in the movable base, the cavity is communicated with the outside through two sliding grooves, the bottom end of the sliding block is fixedly provided with a rack, the rack is meshed with the rack and is connected with the same gear, the gear is connected in the cavity through a rotating shaft in a rotating mode, a worm wheel fixedly connected to the outer side of the rotating shaft is further arranged below the gear, a worm is meshed with one side of the worm wheel and is connected to the movable base through a transmission shaft in a rotating mode, one end of the transmission shaft extends to the outer side of the movable base, and a hand wheel is fixedly connected to the one end of the transmission shaft.

Preferably, the two opposite side walls of the guardrail plates are respectively fixed with a reflective safety warning board, and the two guardrail plates are respectively fixedly embedded with two symmetrically arranged screen plates.

Preferably, the quick positioning mechanism comprises a Z-shaped rod fixedly connected to the outer side of the movable base, a fixed outer rod is fixed on one side wall of the Z-shaped rod, which faces the movable wheel, a telescopic inner rod slides inside the fixed outer rod, and a movable channel matched with the telescopic inner rod is formed inside the fixed outer rod.

Preferably, the inclined plane I is seted up to the one end of flexible interior pole, and the other end extends to the outside of fixed outer pole to the rigid coupling has the arc of being convenient for advancing line location to the removal wheel and supports the board, and top one side of flexible interior pole is connected with the spring through connecting block one, and the other end of spring is connected with connecting block two, and connecting block two is fixed on the top of fixed outer pole.

Preferably, the outside cover of Z shape pole is equipped with the sliding sleeve, and the bottom mounting of sliding sleeve has the carriage release lever, and the bottom of carriage release lever slides and runs through fixed outer pole to the rigid coupling has the ground nail, has seted up on the fixed outer pole with carriage release lever matched with run through the groove, the movable passage with run through the groove and communicate.

Preferably, a clamping groove matched with one end of the telescopic inner rod is formed in one side wall of the moving rod, a second inclined surface matched with the first inclined surface is formed in one side wall of the clamping groove, the top end of the sliding sleeve is rotatably connected with a screw rod through a bearing, the screw rod is connected to the Z-shaped rod in a spiral transmission mode, and a rotating handle is fixedly connected to the top end of the screw rod.

Compared with the prior art, the utility model has the beneficial effects that:

the guardrail is different from the prior art, the four moving wheels can be conveniently and quickly positioned by utilizing the quick positioning mechanism, the ground nails can be inserted into the ground while the moving wheels are positioned, the stability of the guardrail is further improved, the two guardrail plates can be conveniently unfolded by utilizing the folding and unfolding mechanism, the length of the guardrail can be conveniently adjusted, the guardrail can be adjusted and used according to different use requirements, the application range is wide, and in addition, the good safety warning effect can be started by utilizing the light-reflecting safety warning board, so that the guardrail can further play a safety protection effect.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic diagram of an oblique top view structure of two sliders according to the present invention;

FIG. 3 is a schematic structural view of various components of the folding and unfolding mechanism of the present invention;

fig. 4 is a schematic structural diagram of each component of the quick positioning mechanism of the present invention.

In the figure: 1. moving the base; 2. a guardrail plate; 21. a reflective safety warning board; 22. a screen plate; 3. a slider; 4. a moving wheel; 5. a quick positioning mechanism; 501. a Z-shaped bar; 502. fixing the outer rod; 503. a telescopic inner rod; 504. an arc-shaped abutting plate; 505. a first connecting block; 506. a spring; 507. a second connecting block; 508. a sliding sleeve; 509. a travel bar; 510. a ground nail; 511. a card slot; 512. a screw; 513. rotating the handle; 6. a folding and unfolding mechanism; 601. a rack; 602. a gear; 603. a rotating shaft; 604. a worm gear; 605. a worm; 606. a drive shaft; 607. a handwheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a high-stability foundation pit guardrail comprises a movable base 1 with a trapezoidal cross section, wherein the periphery of the bottom end of the movable base 1 is rotatably connected with movable wheels 4 through two bearing seats, two sides of the top end of the movable base 1 are slidably connected with two symmetrically arranged guardrail plates 2 through sliders 3 with I-shaped vertical cross sections, two sides of the top end of the movable base 1 are provided with chutes matched with the sliders 3, and a folding and unfolding mechanism 6 is connected between each of the two sliders 3 and the movable base 1;

the folding and unfolding mechanism 6 comprises a cavity arranged in the movable base 1, the cavity is communicated with the outside through two sliding grooves, racks 601 are fixed at the bottom ends of the two sliding blocks 3, the two racks 601 are meshed and connected with the same gear 602, the gear 602 is rotatably connected in the cavity through a rotating shaft 603, a worm wheel 604 fixedly connected to the outer side of the rotating shaft 603 is further arranged below the gear 602, a worm 605 is meshed and connected to one side of the worm wheel 604, the worm 605 is rotatably connected to the movable base 1 through a transmission shaft 606, one end of the transmission shaft 606 extends to the outer side of the movable base 1, a hand wheel 607 is fixedly connected to the one end of the transmission shaft 606, the worm 605 and the worm wheel 604 generate self-locking force, and then the transmission shaft 606 cannot rotate under the action of no external force.

Furthermore, all be fixed with reflection of light safety warning sign 21 on two guardrail board 2 lateral walls that face away from mutually, all fixedly on two guardrail board 2 inlay the otter board 22 that is equipped with two symmetries and sets up, be equipped with the safety warning poster on the reflection of light safety warning sign 21.

Furthermore, one side of the moving wheel 4 is provided with a fast positioning mechanism 5 installed on the moving base 1, the fast positioning mechanism 5 comprises a Z-shaped rod 501 fixedly connected to the outer side of the moving base 1, a fixed outer rod 502 is fixed on one side wall of the Z-shaped rod 501 facing the moving wheel 4, an inner telescopic rod 503 is slid inside the fixed outer rod 502, a movable channel matched with the inner telescopic rod 503 is formed inside the fixed outer rod 502, one end of the inner telescopic rod 503 is provided with a first inclined surface, the other end of the inner telescopic rod extends to the outer side of the fixed outer rod 502, and is fixedly connected with an arc-shaped abutting plate 504 convenient for positioning the moving wheel 4, one side of the top end of the inner telescopic rod 503 is connected with a spring 506 through a first connecting block 505, the other end of the spring 506 is connected with a second connecting block 507, the second connecting block 507 is fixed at the top end of the fixed outer rod 502, the outer side of the Z-shaped rod 501 is sleeved with a sliding sleeve 508, the bottom end of the sliding sleeve 508 is fixed with a moving rod 509, the bottom end of the movable rod 509 penetrates through the fixed outer rod 502 in a sliding manner and is fixedly connected with a ground nail 510, a through groove matched with the movable rod 509 is formed in the fixed outer rod 502, a movable passage is communicated with the through groove, a clamping groove 511 matched with one end of the upper inclined surface of the telescopic inner rod 503 is formed in one side wall of the movable rod 509, a second inclined surface matched with the first inclined surface is formed in one side wall of the clamping groove 511, the top end of the sliding sleeve 508 is rotatably connected with a screw rod 512 through a bearing, the screw rod 512 is connected to the Z-shaped rod 501 in a spiral transmission manner, a rotating handle 513 is fixedly connected to the top end of the screw rod 512, after the movable rod 509 moves upwards, when the engaging slot 511 moves upward, the spring 506 will act in the opposite direction, and the end of the inner rod 503 with the first inclined surface will be engaged into the engaging slot 511, whereas when the second inclined surface is set, when the moving rod 509 moves downward, it will press the end of the first inclined surface of the telescopic inner rod 503 again, and the spring 506 will be stretched.

In the scheme, when the guardrail is used, the guardrail is pushed to a position to be used, the four rotating handles 513 are sequentially rotated, the screw 512 is rotated, the sliding sleeve 508 moves downwards and drives the corresponding moving rod 509 to move downwards, the arrangement of the inclined plane II in the clamping groove 511 is matched, the inclined plane II in the clamping groove 511 can support and press the telescopic inner rod 503 connected with the inclined plane I, the telescopic inner rod 503 can push the arc-shaped supporting plate 504 to tightly support the corresponding moving wheel 4, the moving wheel 4 is positioned, the spring 506 can be stretched at the same time, in addition, the ground nail 510 at the bottom end of the moving rod can be inserted into the ground, the moving wheel 4 is effectively prevented from moving, the stability of the guardrail can be further improved, secondly, when the two guardrail plates 2 need to be expanded for use, the transmission shaft 606 can be rotated through the hand wheel 607, the worm 605 rotates, and the pivot 603 that connects worm wheel 604 transmits, then gear 602 rotates, because gear 602 and two rack 601 meshing sets up, make two sliders 3 can carry out the relative removal to the direction then, realize the extension of two guardrail boards 2, then conveniently adjust the length of this guardrail according to different in service behavior, application scope is wide, excellent in use effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high stability's foundation ditch guardrail, is removal base (1) of trapezoidal shape structure including erecting the cross-section, its characterized in that: the periphery of the bottom end of the moving base (1) is rotatably connected with moving wheels (4) through two bearing seats, two sides of the top end of the moving base (1) are slidably connected with two symmetrically-arranged guardrail plates (2) through sliding blocks (3) with H-shaped vertical sections, two sliding chutes matched with the sliding blocks (3) are formed in two sides of the top end of the moving base (1), one side of each moving wheel (4) is provided with a quick positioning mechanism (5) arranged on the moving base (1), and a folding and unfolding mechanism (6) is connected between each sliding block (3) and the moving base (1);

the folding and unfolding mechanism (6) comprises a cavity arranged in the movable base (1), the cavity is communicated with the outside through two sliding grooves, two racks (601) are fixed at the bottom ends of the sliding blocks (3) respectively, two racks (601) are meshed with one gear (602), the gear (602) is rotatably connected into the cavity through a rotating shaft (603), a worm wheel (604) fixedly connected to the outer side of the rotating shaft (603) is further arranged below the gear (602), a worm (605) is meshed with one side of the worm wheel (604), the worm (605) is rotatably connected onto the movable base (1) through a transmission shaft (606), one end of the transmission shaft (606) extends to the outer side of the movable base (1), and a hand wheel (607) is fixedly connected to the one end of the transmission shaft (606).

2. A high stability foundation pit guardrail as claimed in claim 1, wherein: two all be fixed with reflection of light safety warning sign (21) on guardrail board (2) lateral wall dorsad mutually, two all fixed otter board (22) that are equipped with two symmetries and set up of inlaying on guardrail board (2).

3. A high stability foundation pit guardrail as claimed in claim 1, wherein: the quick positioning mechanism (5) comprises a Z-shaped rod (501) fixedly connected to the outer side of the movable base (1), a fixed outer rod (502) is fixed on one side wall of the movable wheel (4) on the Z-shaped rod (501) in a facing mode, a telescopic inner rod (503) slides inside the fixed outer rod (502), and a movable channel matched with the telescopic inner rod (503) is formed in the fixed outer rod (502).

4. A high stability foundation pit guardrail as claimed in claim 3, wherein: one end of the telescopic inner rod (503) is provided with a first inclined surface, the other end of the telescopic inner rod extends to the outer side of the fixed outer rod (502), the fixed arc-shaped supporting plate (504) which is convenient for positioning the moving wheel (4) is fixedly connected with the fixed arc-shaped supporting plate, one side of the top end of the telescopic inner rod (503) is connected with a spring (506) through a first connecting block (505), the other end of the spring (506) is connected with a second connecting block (507), and the second connecting block (507) is fixed at the top end of the fixed outer rod (502).

5. A high stability foundation pit guardrail as claimed in claim 3, wherein: the outside cover of Z shape pole (501) is equipped with sliding sleeve (508), and the bottom mounting of sliding sleeve (508) has carriage release lever (509), and the bottom of carriage release lever (509) slides and runs through fixed outer pole (502) to the rigid coupling has ground nail (510), has seted up on fixed outer pole (502) and has run through the groove with carriage release lever (509) matched with, and the movable passage communicates with running through the groove mutually.

6. A high stability foundation pit guardrail as claimed in claim 5, wherein: a clamping groove (511) matched with one end of the telescopic inner rod (503) is formed in one side wall of the moving rod (509), a second inclined surface matched with the first inclined surface is formed in one side wall of the clamping groove (511), the top end of the sliding sleeve (508) is rotatably connected with a screw rod (512) through a bearing, the screw rod (512) is connected to the Z-shaped rod (501) in a spiral transmission mode, and a rotating handle (513) is fixedly connected to the top end of the screw rod (512).