CN211058708U

CN211058708U - Ladder stand

Info

Publication number: CN211058708U
Application number: CN201921526418.0U
Authority: CN
Inventors: 李乐; 王喜; 吴福治
Original assignee: Xi'an Xiangyuan Decoration Engineering Co ltd
Current assignee: Xi'an Xiangyuan Decoration Engineering Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-07-21
Anticipated expiration: 2029-09-12

Abstract

The utility model relates to a cat ladder, include the cat ladder body of constituteing by two stands and the horizontal pole that a plurality of being parallel to each other of level setting between two stands, the top and the maintenance hole top layer fixed connection of stand, the bottom and the maintenance hole diapire fixed connection of stand, cat ladder body highly is provided with at least a set of slow compression pole along it, and every slow compression pole of group includes many slow compression poles, slow compression pole's one end with cat ladder body is articulated, slow compression pole's other end sliding connection has the slow compression pipe, slow compression pole with be provided with the spring between the slow compression pipe, the other end and the maintenance hole wall of slow compression pipe are articulated, the utility model discloses a cat ladder has the more stable effect in middle part.

Description

Ladder stand

Technical Field

The utility model belongs to the technical field of the technique of building and specifically relates to a cat ladder is related to.

Background

Along with the development of building industry, present building is all built for steel construction cooperation concrete usually, consequently, the top of building also all adopts the steel construction to build usually, for the maintenance of convenient building top layer steel construction, all be provided with top steel structure maintenance hole in the building usually, be equipped with the cat ladder that supplies the maintainer to go up and down in top steel structure maintenance hole, because top steel structure maintenance hole inner space is narrow and long, therefore the height of cat ladder also is higher relatively, consequently can only set up the cat ladder into vertical state, and usually the cat ladder sets up at its central point along the axial in top steel structure maintenance hole.

Chinese patent No. CN205713922U discloses a ladder stand for inspection well mouth, which comprises a main ladder, wherein the top of the main ladder is provided with a folded edge, and an extension ladder is connected below the bottom of the main ladder; the end part of the folded edge is provided with a clamping rod, two ends of the clamping rod extend out of two sides of the folded edge, and the bottoms of the two ends are provided with pressure relief devices which are symmetrical to each other; the pressure-relieving device consists of a spring and a pressure foot, the top of the spring is fixedly welded with the clamping rod, and the bottom of the spring is fixedly welded with the top of the pressure foot; the top of the presser foot is fixedly provided with a lower limiting guide rod, the clamping rod corresponding to the presser foot is fixedly provided with an upper limiting guide rod, the upper limiting guide rod and the lower limiting guide rod are vertically symmetrical, a space is arranged between symmetrical surfaces of the upper limiting guide rod and the lower limiting guide rod, and the spring is wrapped outside the upper limiting guide rod and the lower limiting guide rod; when the technical scheme is used, pass through the hem with this cat ladder and joint the outer wall of joint pole joint at the inspection shaft mouth, when personnel passed through the cat ladder business turn over inspection shaft, because self gravity and exert the power on the cat ladder will transmit the joint pole and then transmit pressure slowing device, pressure slowing device unloads power through the spring, the presser foot plays the supporting role, on, lower stop lever restricts the deflection of spring when the spring contracts, above-mentioned technical scheme inspection shaft mouth cat ladder simple structure, the power uninstallation that exerts through the spring with human gravity has increased the stability of cat ladder, make things convenient for constructor from top to bottom.

According to the technical scheme, the gravity applied to the crawling ladder by a human body is unloaded through the pressure-reducing device, the stability of the crawling ladder is improved, the deformation of the crawling ladder at two ends of the crawling ladder is small, the deformation of the middle of the crawling ladder is large, and in the technical scheme, the pressure-reducing device is arranged at the top end of the crawling ladder, so that the stabilizing effect on the middle of the crawling ladder is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a middle part has cat ladder of better stability.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a cat ladder, includes the cat ladder body that comprises the horizontal pole that a plurality of being parallel to each other that sets up between two stands by two stands and level, the top and the maintenance hole top layer fixed connection of stand, the bottom and the maintenance hole diapire fixed connection of stand, cat ladder body highly is provided with a set of depression bar at least along it, and every group depression bar includes many depression bars, the one end of depression bar with cat ladder body is articulated, the other end sliding connection of depression bar has the depression bar, the depression bar with be provided with the spring between the depression bar, the other end and the maintenance hole wall of depression bar are articulated.

Through adopting above-mentioned technical scheme, the top and the bottom of stand respectively with the top layer and the diapire fixed connection in maintenance hole with cat ladder body fixed mounting in the maintenance hole, this cat ladder about maintainer's accessible horizontal pole, the in-process that maintainer crawled at this cat ladder rocks the cat ladder and causes and all will transmit a plurality of slow-release poles on, the rethread spring transmits to the slow-release pipe and finally transmits the hole wall in maintenance hole, this in-process, the repeated flexible uninstallation of rocking of cat ladder that falls of spring, make the middle part of this cat ladder have good shock attenuation effect like this, and then make its middle part more stable.

The utility model discloses further set up to: the pressure-relieving pipe with the one end of pressure-relieving rod sliding connection extends towards the centre of a circle of its terminal surface and is provided with annular dog, the pressure-relieving rod with pressure-relieving pipe sliding connection's one end is provided with the lug, the lug sliding connection in the pressure-relieving pipe, annular dog with the pressure-relieving rod cup joints, the diameter of lug is less than the internal diameter of annular dog, the spring sets up the lug is close cat ladder body one side with annular dog keeps away from between the cat ladder body.

Through adopting above-mentioned technical scheme, the cat ladder is when the production is rocked, the lug will slide in slowly-pressing pipe, annular dog will slide along slowly-pressing pipe's surface, make lug and annular dog compress the spring, rocking of the elasticity cat ladder for overcoming the spring will reduce, when the spring opens again under the elasticity of self, make the elasticity of spring reduce for overcoming the frictional force between lug and slowly-pressing pipe inner wall and annular dog and the slowly-pressing pipe outer wall, so make the spring with rocking quick uninstallation of cat ladder repeatedly.

The utility model discloses further set up to: the one end that the slow-pressing pipe is close to the cat ladder body with the slow-pressing rod is close to maintenance hole wall one end and all articulates there is the hinge bar, the hinge bar respectively with cat ladder body and maintenance hole wall fixed connection.

Through adopting above-mentioned technical scheme, install the hinge bar respectively on the hole wall in cat ladder body and maintenance hole earlier, the rethread is articulated with the slowly pressing pole and slowly presses the pipe with the hinge bar respectively, makes the installation of slowly pressing pipe and slowly pressing pole more convenient like this.

The utility model discloses further set up to: and a plurality of protective frames fixedly connected with the upright columns and at least one fixed rod fixedly arranged on the plurality of protective frames are arranged on the two upright columns along the axial direction of the upright columns.

Through adopting above-mentioned technical scheme, set up the frame that protects on the cat ladder body, it will fall the thing and when having protected maintenance personal's personal safety outside protecting the frame to have fallen the thing in the maintenance hole, and the dead lever is connected to a plurality of frames that protect together, has strengthened the bearing capacity who protects the frame.

The utility model discloses further set up to: two ends of the protective frame are respectively and fixedly arranged between the two opposite side walls of the upright posts.

Through adopting above-mentioned technical scheme, the elasticity of protecting the frame makes the both ends of protecting the frame have open trend, sets up the both ends of withered and yellow at the opposite side of two stands, and the elasticity of protecting the frame will make the installation of protecting the frame more firm.

The utility model discloses further set up to: the top of dead lever deviates from the central point that protects the frame puts the extension and is provided with the canned paragraph, canned paragraph and maintenance hole roof fixed connection.

Through adopting above-mentioned technical scheme, pass through canned paragraph fixed connection to the top layer in maintenance hole with the dead lever, protect frame and dead lever itself like this will transmit maintenance hole top layer through the canned paragraph at gravity, and when having applied external force on protecting frame and dead lever, external force also can transmit the top layer in maintenance hole through the linkage segment, has strengthened the bearing capacity who protects frame and dead lever like this.

The utility model discloses further set up to: the cat ladder body includes the cat ladder section of a plurality of adjacent end interconnect, and is adjacent fixed being provided with the connecting plate that is the T type between the tip of cat ladder section.

Through adopting above-mentioned technical scheme, because maintenance hole inner space is narrow and small, so set up the cat ladder segmentation into a plurality of cat ladder sections, get up a plurality of cat ladder sections through connecting plate section by section fixed connection when the cat ladder is installed, made things convenient for the installation of this cat ladder like this.

The utility model discloses further set up to: a steel rope is erected between the top end and the bottom end of the ladder stand body, and a falling protector is arranged on the steel rope.

By adopting the technical scheme, when the maintenance personnel fall from the ladder stand, the falling protector works to suspend the maintenance personnel in the air, so that the personal safety of the maintenance personnel is ensured.

To sum up, the utility model discloses a beneficial technological effect does:

1. the middle part of the ladder stand has a good damping effect by the aid of the pressure-relieving pipe, the pressure-relieving rod and the spring, and the middle part of the ladder stand is more stable;

2. the fixed section transmits the external force borne by the protective frame and the fixed rod to the top layer of the maintenance hole;

3. the ladder stand is divided into a plurality of ladder sections, and the ladder stands are fixedly connected one by one through the connecting plates when being installed, so that the ladder stand is convenient to install.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an explosion diagram of the local structure of the present invention, which is intended to show the spring, the bump and the annular stopper.

In the figure, 1, a ladder body; 11. a column; 12. a cross bar; 13. a pressure relief lever; 131. a bump; 14. a pressure-relieving pipe; 141. an annular stop block; 15. a spring; 16. protecting the frame; 161. fixing the rod; 1611. a fixed section; 17. a stair climbing section; 18. a connecting plate; 19. a steel cord; 191. a safety catch; 2. a hinged lever.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the ladder disclosed in the present invention comprises a ladder body 1, a plurality of protection frames 16 fixedly arranged on one side of the ladder body 1 along the axial direction of the ladder body 1, at least one fixing rod 161 fixedly arranged on the plurality of protection frames 16, at least one set of slow compression rods 13 fixedly connected with the ladder body 1, and a buffer tube slidably connected with the slow compression rods 13, wherein the other end of the buffer tube is fixedly connected with the wall of the maintenance hole; in this embodiment, the protective frame 16 is arc-shaped, the two ends of the protective frame are provided with the mounting lugs, the number of the fixing rods 161 parallel to the ladder body 1 is three, the fixing rods 161 are welded on the outer sides of the buffer rods, and the pressure-reducing rods 13 are provided with three groups.

Referring to fig. 1, each group of slow compression rods 13 comprises a plurality of slow compression rods 13, hinge rods 2 are hinged to ends, far away from sliding connection between the slow compression rods 13 and the slow compression tubes 14, of the slow compression rods 13, the slow compression rods 13 are hinged to a ladder stand body 1 through the hinge rods 2, the slow compression tubes 14 are hinged to a hole wall of a maintenance hole through the hinge rods 2, and the two hinge rods 2 are fixedly connected with the ladder stand body 1 and the maintenance hole wall respectively; in this embodiment, every group depression bar 13 is provided with four depression bars 13, welds with 13 articulated pole 2 of depression bar and stand 11, passes through bolt and maintenance hole wall fixed connection with 14 articulated pole 2 of depression bar.

Referring to fig. 1 and 2, the one end of the sliding connection between the slow-pressing pipe 14 and the slow-pressing rod 13 extends towards the center of the end face to form an annular stopper 141, the one end of the sliding connection between the slow-pressing rod 13 and the slow-pressing pipe 14 is provided with a convex block 131, the convex block 131 is in sliding connection with the slow-pressing pipe 14, the annular stopper 141 is sleeved with the slow-pressing rod 13, the diameter of the convex block 131 is smaller than the inner diameter of the annular stopper 141, and a spring 15 is arranged between the side of the convex block 131 close to the ladder stand body 1 and the side of.

Referring to fig. 1, the top end and the low end of a ladder stand body 1 are respectively and fixedly connected with the top layer and the bottom wall of a maintenance hole, the ladder stand body 1 comprises two upright posts 11 and a plurality of cross rods 12 which are horizontally arranged between the two upright posts 11 and are parallel to each other, the ladder stand body 1 is sectionally arranged into a plurality of ladder stand sections 17 with adjacent ends connected with each other, a T-shaped connecting plate 18 is fixedly arranged between the end parts of the adjacent ladder stand sections 17, and two ends of a protective frame 16 are respectively and fixedly arranged between the opposite side walls of the two upright posts 11; in this embodiment, the protective frame 16 is fixedly connected with the upright post 11 through the mounting lug and the bolt, the top end of the ladder stand body 1 is poured into the top layer of the maintenance hole, and the bottom end of the ladder stand body 1 is poured into the bottom wall of the maintenance hole.

Referring to fig. 1, a steel rope 19 is erected between the top end and the bottom end of a ladder stand body 1, and a falling protector 191 is arranged on the steel rope 19; in this embodiment, the steel cable 19 is welded to the top end of the ladder body 1, and the other end of the steel cable 19 is poured into the bottom wall of the maintenance hole.

The implementation principle of the embodiment is as follows: the top end and the bottom end of the upright post 11 are respectively fixedly connected with the top layer and the bottom wall of the maintenance hole to fixedly install the ladder stand body 1 in the maintenance hole, a maintenance worker can go up and down the ladder stand through the cross rod 12, the shaking of the ladder stand caused by the maintenance worker in the crawling process of the ladder stand is transmitted to the plurality of slow pressure rods 13 and then transmitted to the slow pressure pipes 14 through the springs 15, in the process, the projection 131 will slide in the slow pressure pipe 14, the ring stopper 141 will slide along the surface of the slow pressure rod 13, so that the projection 131 and the ring-shaped stopper 141 compress the spring 15, the shaking of the ladder against the elastic force of the spring 15 is reduced, and when the spring 15 is re-opened by its own elastic force, in order to overcome the friction force between the lug 131 and the inner wall of the pressure-relieving pipe 14 and between the annular stop block 141 and the outer wall of the pressure-relieving rod 13, the elastic force of the spring 15 is reduced, and the spring 15 is repeatedly used for rapidly unloading the shaking of the ladder stand; the plurality of protective frames 16 protect maintenance personnel from being damaged by falling objects in the maintenance hole in the process of climbing up and down the ladder, the plurality of protective frames 16 are fixedly connected together by the fixing rods 161, the bearing capacity of the protective frames 16 is enhanced, and the fixing rods 161 are fixedly connected with the top layer of the maintenance hole through the fixing sections 1611, so that external force applied to the protective frames 16 and the fixing rods 161 is transmitted to the top layer of the maintenance hole; the ladder stand body 1 is sectionally arranged into a plurality of ladder sections 17, and the ladder sections 17 are fixedly connected section by section through the connecting plates 18, so that the ladder stand is more convenient to install in a narrow maintenance hole; when installing, the pressure-relieving pipe 14 and the pressure-relieving rod 13 firstly fix two articulated rods 2 respectively to the cat ladder body 1 and the maintenance hole wall, and then install the pressure-relieving pipe 14 and the pressure-relieving rod 13 on the articulated rod 2, and the installation of the pressure-relieving rod 13 and the pressure-relieving pipe 14 is completed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a cat ladder, includes cat ladder body (1) that a plurality of horizontal poles (12) that are parallel to each other that set up between two stands (11) by two stands (11) and level are constituteed, its characterized in that: the top and the maintenance hole top layer fixed connection of stand (11), the bottom and the maintenance hole diapire fixed connection of stand (11), cat ladder body (1) highly is provided with at least a set of slow compression pole (13) along it, and every group slow compression pole (13) includes many slow compression poles (13), the one end of slow compression pole (13) with cat ladder body (1) is articulated, the other end sliding connection of slow compression pole (13) has slow pressure pipe (14), slow compression pole (13) with be provided with spring (15) between slow pressure pipe (14), the other end and the maintenance hole wall of slow pressure pipe (14) are articulated.

2. A ladder as claimed in claim 1, wherein: the crawling ladder is characterized in that an annular stop block (141) extends towards the center of a circle of the end face of one end of the pressure-relieving rod (14) in sliding connection with the pressure-relieving rod (13), a convex block (131) is arranged at one end of the pressure-relieving rod (13) in sliding connection with the pressure-relieving rod (14), the annular stop block (141) is sleeved with the pressure-relieving rod (13), the diameter of the convex block (131) is smaller than the inner diameter of the annular stop block (141), and a spring (15) is arranged between the crawling ladder body (1) and is close to one side of the crawling ladder body (131) and far away from the annular stop block (141).

3. A ladder as claimed in claim 1, wherein: the one end that slowly presses pipe (14) to be close cat ladder body (1) with slowly pressing pole (13) are close maintenance hole wall one end and all articulate there are hinge bar (2), hinge bar (2) respectively with cat ladder body (1) and maintenance hole wall fixed connection.

4. A ladder as claimed in claim 1, wherein: and a plurality of protective frames (16) fixedly connected with the upright columns (11) and at least one fixing rod (161) fixedly arranged on the protective frames (16) are arranged along the axial direction of the upright columns (11).

5. A ladder as claimed in claim 4, wherein: two ends of the protective frame (16) are respectively and fixedly arranged between the opposite side walls of the two upright posts (11).

6. A ladder as claimed in claim 4, wherein: the top of the fixing rod (161) extends away from the center of the protective frame (16) to form a fixing section (1611).

7. A ladder as claimed in claim 1, wherein: the ladder stand body (1) comprises a plurality of ladder stand sections (17) with adjacent ends connected with each other, and the adjacent ladder stand sections (17) are fixedly provided with a T-shaped connecting plate (18) between the ends.

8. A ladder as claimed in claim 1, wherein: a steel rope (19) is erected between the top end and the bottom end of the ladder stand body (1), and a falling protector (191) is arranged on the steel rope (19).