CN219012459U - Ladder stand and electric tunnel - Google Patents

Abstract

The utility model discloses a crawling ladder and an electric power tunnel, wherein the crawling ladder comprises a first vertical rod, a second vertical rod and a plurality of transverse pedals, the first vertical rod and the second vertical rod extend along the vertical direction, and the first vertical rod and the second vertical rod are arranged at intervals along the first horizontal direction; the transverse pedals extend along the first horizontal direction, two ends of each transverse pedal are respectively connected with the first vertical rod and the second vertical rod, and a plurality of transverse pedals are arranged at intervals along the vertical direction; wherein at least one of the first and second vertical bars has a guide rail extending in a vertical direction for cooperation with a fall arrester. The cat ladder provided by the embodiment of the utility model has the advantages of good safety and the like.

Description

Ladder stand and electric tunnel

Technical Field

The utility model relates to the technical field of manholes, in particular to a crawling ladder and an electric tunnel.

Background

In the power tunnel, manholes (working wells) are needed to be arranged at intervals so as to meet the requirements of paying off, overhauling and safe escape of the power cable. Generally, a climbing ladder is arranged in a manhole for an maintainer to perform well descending operation. In the related art, no protection measures are arranged on the cat ladder, so that an maintainer can only perform well descending operation by virtue of proficiency and experience, and safety accidents such as falling easily occur.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

For this reason, embodiments of the present utility model provide a ladder stand to improve safety.

The crawling ladder comprises a first vertical rod, a second vertical rod and a plurality of transverse pedals, wherein the first vertical rod and the second vertical rod extend along the vertical direction, and the first vertical rod and the second vertical rod are arranged at intervals along the first horizontal direction; the transverse pedals extend along the first horizontal direction, two ends of each transverse pedal are respectively connected with the first vertical rod and the second vertical rod, and a plurality of transverse pedals are arranged at intervals along the vertical direction; wherein at least one of the first and second vertical bars has a guide rail extending in a vertical direction for cooperation with a fall arrester.

In some embodiments, the cross section of the first vertical rod is T-shaped, the first vertical rod includes a first plate body and a second plate body, the first plate body includes a connection portion and a guide portion arranged along a second horizontal direction, one end of the transverse pedal is connected with the connection portion, the second plate body is connected with one end of the guide portion far away from the connection portion, the second plate body and the guide portion form the guide rail, and the second horizontal direction intersects with the first horizontal direction.

In some embodiments, the cross tread is removably coupled to the connecting portion.

In some embodiments, the connecting portion has a connecting hole extending in the first horizontal direction, an end of the lateral pedal remote from the second vertical rod passes through the connecting hole and is connected with a fastener, the lateral pedal has a stop surface facing the connecting portion, and the connecting portion is clamped between the stop surface and the fastener in the first horizontal direction.

In some embodiments, the first vertical rod comprises a vertical rod body and the guide rail, one end of the transverse pedal is connected with the vertical rod body, and the guide rail is connected with the vertical rod body.

In some embodiments, the rail is removably coupled to the montant body.

In some embodiments, the ladder further comprises a connection plate connected to the vertical rod body, and the guide rail is detachably connected to the connection plate.

In some embodiments, the ladder further comprises a U-shaped hoop, and the connecting plate is connected to the vertical rod body through the U-shaped hoop.

In some embodiments, the second vertical rod is a metal tube, and one end of the transverse pedal is welded with the second vertical rod.

The embodiment of the utility model also provides a power tunnel.

The electric power tunnel comprises a tunnel body, a manhole and a climbing ladder, wherein the manhole is communicated with the tunnel body; the ladder stand is arranged in the manhole and extends into the tunnel body, and the ladder stand is any one of the ladder stand described in the embodiment.

When the crawling ladder disclosed by the embodiment of the utility model is used, the falling protector is bound on the body of an maintainer and is slidably connected with the guide rail along the extending direction of the guide rail. When an maintainer steps on the ladder vertically and normally, the falling protector moves along with the maintainer; when maintainer falls from the cat ladder because of stepping on the sky or the hand is smooth, the safety hook can fall along with the maintainer is quick, and the safety hook can automatic locking when the safety hook along guide rail fast moving is on the guide rail for the maintainer hangs on the cat ladder through the safety hook, prevents that maintainer from directly falling to the bottom of cat ladder, and takes place the casualty accident. Therefore, the ladder stand provided by the embodiment of the utility model has the advantages of good safety and the like.

Drawings

Fig. 1 is a schematic view of a ladder stand according to an embodiment of the utility model.

Fig. 2 is a cross-sectional view of the ladder of fig. 1 from a top view.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is a cross-sectional view of a top view of a first vertical bar of a ladder according to another embodiment of the utility model.

Fig. 5 is a schematic diagram of the structure of a power tunnel according to an embodiment of the present utility model.

Reference numerals:

a ladder 100;

a first vertical rod 1; a first plate body 101; a connection portion 1011; a connection hole 10111; a guide portion 1012; a second plate 102; a vertical rod body 103; a guide rail 104;

a second vertical rod 2;

a transverse pedal 3; a first end 301; a second end 302; a stop surface 303;

a fastener 4;

a connection plate 5;

u-shaped anchor ear 6;

a power tunnel 1000;

a tunnel body 200;

a manhole 300;

and a well lid 400.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the related art, no protection measures are arranged on the crawling ladder of the electric power tunnel, and safety accidents such as falling and the like are easy to occur for maintenance personnel. To prevent the emergence of falling accident, can set up the safety hook on the cat ladder, the maintainer is connected with the cat ladder through the safety hook, when the maintainer falls because of the accident from the cat ladder, can utilize safety hook and cat ladder locking, prevent that the maintainer from falling to the bottom of electric power tunnel, cause the casualties. However, the prior art ladder does not have a guide rail that cooperates with the fall arrester, resulting in the fall arrester not being usable on the ladder.

As shown in fig. 1 to 4, a ladder stand 100 according to an embodiment of the present utility model includes a first vertical rod 1, a second vertical rod 2, and a plurality of lateral steps 3, where the first vertical rod 1 and the second vertical rod 2 extend along a vertical direction, and the first vertical rod 1 and the second vertical rod 2 are disposed at intervals along a first horizontal direction. The horizontal pedal 3 extends along a first horizontal direction, two ends of the horizontal pedal 3 are respectively connected with the first vertical rod 1 and the second vertical rod 2, and a plurality of horizontal pedals 3 are arranged at intervals along the vertical direction. Wherein at least one of the first vertical bar 1 and the second vertical bar 2 has a guide rail 104 extending in the vertical direction, the guide rail 104 being intended for engagement with a fall arrester.

At least one of the first vertical bar 1 and the second vertical bar 2 has a guide rail 104, which can be understood as: the first vertical rod 1 and the second vertical rod 2 are provided with guide rails 104; alternatively, the first vertical rod 1 has a guide rail 104, and the second vertical rod 2 does not have a guide rail 104; alternatively, the first vertical bar 1 does not have a guide rail 104 and the second vertical bar 2 has a guide rail 104.

In order to make the technical solution of the present application easier to understand, the technical solution of the present application will be further described below by taking the example that the vertical direction coincides with the up-down direction and the first horizontal direction coincides with the left-right direction. The up-down direction is shown in fig. 1, and the left-right direction is shown in fig. 2 and 3.

As shown in fig. 1 and 2, the first vertical rod 1 and the second vertical rod 2 extend along the up-down direction, the first vertical rod 1 and the second vertical rod 2 are arranged at intervals along the left-right direction, and the first vertical rod 1 is arranged on the right side of the second vertical rod 2. The lateral steps 3 extend in the left-right direction, and a plurality of lateral steps 3 are provided at intervals in the up-down direction. The lateral pedal 3 has a first end 301 and a second end 302 opposite in the left-right direction, the first end 301 is provided on the right side of the second end 302, the first end 301 is connected to the first vertical rod 1, and the second end 302 is connected to the second vertical rod 2. The guide rail 104 extends in the up-down direction, and the fall arrester is provided on the guide rail 104 slidably in the up-down direction.

When the ladder 100 of the embodiment of the utility model is used, the falling protector is bound on an maintainer body, and the falling protector is slidably connected with the guide rail 104 along the extending direction of the guide rail 104. When an maintainer steps on the transverse pedal 3 to normally go up and down along the cat ladder 100, the falling protector moves together with the maintainer; when an maintainer falls from the cat ladder 100 due to the fact that the maintainer steps on the air or slides by hand, the falling protector can fall rapidly along with the maintainer, and when the falling protector moves rapidly along the guide rail 104, the falling protector can be automatically locked on the guide rail 104, so that the maintainer hangs on the cat ladder 100 through the falling protector, and the maintainer is prevented from directly falling to the bottom of the cat ladder 100, and casualties occur.

Therefore, the ladder 100 of the embodiment of the utility model has the advantages of good safety and the like.

Optionally, the fall arrester includes a self-locking device and a mounting belt, the self-locking device is slidably disposed on the guide rail 104 along the extending direction of the guide rail 104, and the safety belt is connected with the self-locking device. When the maintenance personnel use the cat ladder 100, the safety belt is bound on the maintenance personnel. The self-locking device is a guide rail self-locking device, and the guide rail self-locking device realizes friction braking on the guide rail by utilizing the speed change during falling.

In some embodiments, as shown in fig. 2 and 3, the first vertical rod 1 has a T-shaped cross section. The cross section of the first vertical rod 1 is a cross section of the first vertical rod 1 sectioned by a plane perpendicular to the vertical direction. The first vertical bar 1 includes a first plate body 101 and a second plate body 102, the first plate body 101 includes a connecting portion 1011 and a guide portion 1012 arranged in a second horizontal direction, one end of the lateral pedal 3 is connected to the connecting portion 1011, the second plate body 102 is connected to one end of the guide portion 1012 away from the connecting portion, and the second plate body 102 and the guide portion 1012 form a guide rail 104. Wherein the second horizontal direction intersects the first horizontal direction.

In order to make the technical solution of the present application easier to understand, the technical solution of the present application will be further described below by taking the case that the second horizontal direction coincides with the front-rear direction. Wherein the front-rear direction is shown in fig. 2 and 3. At this time, the second horizontal direction is perpendicular to the first horizontal direction.

For example, as shown in fig. 2 and 3, the first plate 101 is parallel to the front-rear direction, and the second plate 102 is parallel to the left-right direction. The connection portion 1011 is provided at the front side of the guide portion 1012, and the second plate 102 is connected to the rear end of the first plate 101.

The first vertical rod 1 adopts the structure, so that the first vertical rod 1 is used for supporting the transverse pedal 3 and also used as the guide rail 104. In fact, only one of the vertical rods of the ladder in the prior art needs to be replaced by the guide rail, which is beneficial to simplifying the structure of the ladder 100, reducing the cost of the ladder 100 and even not increasing the cost compared with the ladder in the prior art.

Alternatively, the cross pedal 3 is detachably attached to the connecting portion 1011. That is, the lateral pedal 3 is detachably connected to the first vertical rod 1.

The horizontal pedal 3 is detachably connected with the vertical rod body 103, so that the guide rail 104 is convenient to maintain and replace, and the service life of the cat ladder 100 is prolonged.

Alternatively, the connection portion 1011 has a connection hole 10111 extending in the first horizontal direction, and an end of the lateral pedal 3 remote from the second vertical rod 2 passes through the connection hole 10111 and is connected to the fastener 4. The lateral pedal 3 has a stopper surface 303 facing the connecting portion 1011, and the connecting portion 1011 is sandwiched between the stopper surface 303 and the fastener 4 in the first horizontal direction.

For example, as shown in fig. 3, the fastening member is a nut, and the lateral pedal 3 includes a connection section provided with external threads, and the connection section passes through the connection hole 10111 and is screwed with the nut. The connection portion 1011 is sandwiched between the stopper surface 303 and the fastener 4 in the left-right direction.

The horizontal pedal 3 and the first vertical rod 1 are connected in the mode, so that connection of the horizontal pedal 3 and the first vertical rod 1 is convenient, and connection reliability of the horizontal pedal 3 and the first vertical rod 1 is good.

Optionally, the transverse pedal 3 includes a large-diameter section and a small-diameter section that are sequentially connected along the first direction, one end of the large-diameter section, which is far away from the small-diameter section, is the second end 302, one end of the small-diameter section, which is far away from the large-diameter section, is the first end 301, the small-diameter section forms the connecting section, and the end surface of the large-diameter section, which is far away from the second vertical rod 2, forms the stop surface 303.

In other embodiments, as shown in fig. 4, the first vertical rod 1 includes a vertical rod body 103 and a guide rail 104, one end of the lateral pedal 3 is connected to the vertical rod body 103, and the guide rail 104 is connected to the vertical rod body 103.

For example, as shown in fig. 4, the guide rail 104 is provided at the rear side of the vertical rod body 103. In fact, the above-described design of the first vertical rod 1 makes it possible not to change the structure of the prior art ladder, only to fix the guide rail on at least one vertical rod of the prior art ladder and to form the ladder 100 in the present application. The cat ladder which is built and put into use in the prior art is transformed, so that the safety of the cat ladder is improved.

From this, conveniently install guide rail 104 additional on prior art's cat ladder, realize the transformation to the cat ladder, improve the security of cat ladder 100.

Optionally, the guide rail 104 is detachably connected to the vertical bar body 103.

The guide rail 104 is detachably connected with the vertical rod body 103, so that the guide rail 104 is convenient to maintain and replace, and the service life of the cat ladder 100 is prolonged.

Optionally, the ladder stand 100 further comprises a connection plate 5, the connection plate 5 is connected to the vertical rod body 103, and the guide rail 104 is detachably connected to the connection plate 5.

For example, as shown in fig. 4, the connection plate 5 is parallel to the front-rear direction, the front side of the connection plate 5 is connected to the vertical rod body 103, and the rear side of the connection plate 5 is connected to the guide rail 104 by bolts.

The connection of the guide rail 104 and the vertical rod body 103 is conveniently realized by using the connecting plate 5.

Optionally, the ladder stand 100 further comprises a U-shaped hoop 6, and the connecting plate 5 is connected to the vertical rod body 103 through the U-shaped hoop 6.

For example, as shown in fig. 4, the U-shaped anchor ear 6 is clamped and fixed outside the vertical rod body 103, and the connection plate 5 is clamped between the vertical rod body 103 and the nut of the U-shaped anchor ear 6 in the left-right direction, so that the connection of the connection plate 5 and the vertical rod body 103 is achieved.

The U-shaped anchor ear 6 is utilized to conveniently realize the connection of the connecting plate 5 and the vertical rod body 103, thereby further conveniently realizing the connection of the guide rail 104 and the vertical rod body 103.

Optionally, the number of the U-shaped hoops 6 and the connecting plates 5 is multiple, the multiple U-shaped hoops 6 are arranged at intervals along the vertical direction, the multiple connecting plates 5 are arranged at intervals along the vertical direction, the multiple U-shaped hoops 6 are in one-to-one correspondence with the multiple connecting plates 5, and each connecting plate 5 is connected with the vertical rod body 103 through the corresponding U-shaped hoops 6. The same guide rail 104 is connected with the vertical rod body 103 by a plurality of U-shaped hoops 6 and a plurality of connecting plates 5. Wherein, U-shaped staple bolt 6 and connecting plate 5 all are located between two adjacent violently stepping on 3 to utilize the part between two adjacent violently stepping on 3 to realize the connection of guide rail 104 and montant body 103.

Optionally, the second vertical rod 2 is a metal tube, and one end of the transverse pedal 3 is welded with the second vertical rod 2.

For example, the second vertical rod 2 is a steel pipe. As shown in fig. 2, the second end 302 (left end) of the lateral pedal 3 is welded to the second vertical rod 2.

By setting the second vertical rod 2 to be a metal tube, the material cost of the second vertical rod 2 is reduced while the strength of the second vertical rod 2 is ensured, thereby reducing the cost of the crawling ladder 100.

In other embodiments, the second vertical rod 2 may also be angle steel, steel bar or composite material.

As shown in fig. 5, the power tunnel 1000 of the embodiment of the present utility model includes a tunnel body 200, a manhole 300, and a ladder 100, the manhole 300 communicating with the tunnel body 200. The ladder 100 is disposed in the manhole 300 and extends into the tunnel body 200, and the ladder 100 is the ladder 100 according to any one of the embodiments described above.

The ladder stand 100 of the embodiment of the utility model has the advantages of good safety and the like, so the electric power tunnel 1000 of the embodiment of the utility model has the advantages of good safety and the like.

In some embodiments, the power tunnel 1000 of the embodiment of the present utility model further includes a manhole cover 400, and the manhole cover 400 is openably and closably covered on an upper portion of the manhole 300.

When an maintainer needs to go into the well, firstly, the well cover 400 is opened; then, the safety belt is bound on the overhauling personnel, and the self-locking device is connected with the guide rail 104. When an maintainer normally goes down the well, the self-locking device slides along with the movement of the maintainer, when the maintainer accidentally falls, the self-locking device moves too fast, so that the self-locking device is automatically locked, the maintainer is suspended in mid-air through the anti-falling device, and the maintainer is prevented from directly falling to the bottom of the tunnel body 200.

Alternatively, the ladder 100 is fixed inside the manhole 300 by an anchor.

The cross section of the manhole 300 may be circular, square or irregular.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those skilled in the art without departing from the scope of the utility model.

Claims (10)

1. A crawling ladder, comprising:

the first vertical rod and the second vertical rod extend along the vertical direction, and the first vertical rod and the second vertical rod are arranged at intervals along the first horizontal direction; and

the transverse pedals extend along the first horizontal direction, two ends of each transverse pedal are respectively connected with the first vertical rod and the second vertical rod, and the transverse pedals are arranged at intervals along the vertical direction;

wherein at least one of the first and second vertical bars has a guide rail extending in a vertical direction for cooperation with a fall arrester.

2. The ladder of claim 1, wherein the first vertical rod has a T-shaped cross section, the first vertical rod includes a first plate body and a second plate body, the first plate body includes a connection portion and a guide portion arranged along a second horizontal direction, one end of the lateral pedal is connected to the connection portion, the second plate body is connected to one end of the guide portion away from the connection portion, the second plate body and the guide portion form the guide rail, and the second horizontal direction intersects the first horizontal direction.

3. The ladder of claim 2, wherein the cross tread is removably coupled to the connecting portion.

4. A ladder according to claim 3, characterized in that the connecting portion has a connecting hole extending in the first horizontal direction, through which an end of the lateral pedal remote from the second vertical bar passes and is connected to a fastener, the lateral pedal having a stop surface facing the connecting portion, the connecting portion being clamped between the stop surface and the fastener in the first horizontal direction.

5. The ladder of claim 1, wherein the first vertical rod comprises a vertical rod body and the guide rail, wherein one end of the lateral pedal is connected to the vertical rod body, and the guide rail is connected to the vertical rod body.

6. The ladder of claim 5, wherein the rail is removably coupled to the montant body.

7. The ladder of claim 6, further comprising a connection plate coupled to the vertical bar body, the guide rail detachably coupled to the connection plate.

8. The ladder of claim 7, further comprising a U-shaped hoop, wherein the connecting plate is connected to the vertical rod body by the U-shaped hoop.

9. The ladder of any one of claims 1-8, wherein the second vertical rod is a metal tube and one end of the lateral pedal is welded to the second vertical rod.

10. A power tunnel, comprising:

the device comprises a tunnel body and a manhole, wherein the manhole is communicated with the tunnel body; and

a ladder arranged in the manhole and extending into the tunnel body, the ladder being as claimed in any one of claims 1 to 9.

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