Safety escalator with adjustable elevation angle

Abstract

The utility model provides a safety escalator with an adjustable elevation angle. The safety escalator comprises an upper bracket, a lower bracket and a plurality of pedals, the top end of the lower support is rotatably and adjustably connected to one side of the operation platform frame, and the bottom end of the lower support is placed on the supporting body; the upper bracket is arranged right above the lower bracket in parallel at intervals, and the bottom end of the upper bracket is placed on the supporting body; a plurality of first connecting shafts which are sequentially arranged at intervals from bottom to top and are horizontally arranged are fixedly mounted on the lower bracket; a plurality of second connecting shafts which are sequentially arranged at intervals from bottom to top and are horizontally arranged are fixedly mounted on the upper bracket; the pedals are sequentially and horizontally arranged from bottom to top, and the two opposite sides of each pedal are rotationally and adjustably connected to the corresponding first connecting shaft and the corresponding second connecting shaft. The device is convenient to operate, safe and reliable, adaptive height adjustment can be conducted according to adjustment of different heights of well positions, and the pedal can be always in the state of being parallel to the ground.

Description

TECHNICAL FIELD

[0001] The present application relates to the wellhead operation field, and particularly relates to an angle-adjustable safety ladder. BACKGROUND

[0002] The conventional workover operation of oil and gas wells needs to install a work station platform in front of the wellhead to facilitate the workover operation. Since the heights of the oil and gas trees are inconsistent, the work platform is designed to be adjustable up and down to facilitate the construction. However, the existing ladder matched with the work platform cannot freely adjust the angle of the ladder steps, so the existing ladder for the wellhead operation platform cannot be applied to the height-adjustable work platform. In addition, since the heights of each well are different, the angle of the ladder matched with the work platform changes during the operation, and the angle of the ladder steps is not always horizontal to the ground, so there is a great safety risk in climbing the ladder. CONTENT OF THE UTILITY MODEL

[0003] One of the purposes of the present application is to provide an angle-adjustable safety ladder, which aims to keep the angle of the ladder steps parallel to the ground during the construction of different height well sites, so as to solve the problem of unsafe climbing of the ladder for the work station platform of different heights.

[0004] The technical solution of the present application is as follows:

[0005] An angle-adjustable safety ladder comprises an upper support, a lower support and a plurality of steps. The lower support is obliquely arranged and rotatably connected to one side of the work station platform at the top end and placed on a support body at the bottom end. The upper support is arranged in parallel and spaced apart above the lower support and placed on a support body at the bottom end. A plurality of first connecting shafts are fixedly installed on the lower support and arranged in sequence from bottom to top and horizontally. A plurality of second connecting shafts are fixedly installed on the upper support and arranged in sequence from bottom to top and horizontally. The steps are arranged in sequence from bottom to top and horizontally, and the opposite sides are rotatably connected to the corresponding first connecting shafts and second connecting shafts.

[0006] As a technical solution of the present application, the lower support comprises a first support frame and a plurality of hooks. The first support frame is obliquely arranged and placed on a support body at the bottom end. One end of each of the plurality of hooks is fixedly installed on the top end of the first support frame, and the other end is connected to the cross beam on one side of the work station platform. The plurality of first connecting shafts are fixedly installed in sequence along the height direction of the first support frame on the upper surface of the first support frame.

[0007] As a technical solution of the present application, the first connecting shafts are welded to the upper surfaces of the longitudinal beams on the opposite sides of the first support frame.

[0008] As a technical solution of the present application, the first support frame is a rectangular frame.

[0009] As a technical solution of the present application, the upper support frame comprises a second support frame; the second support frame is arranged in parallel and spaced apart above the lower support frame, and the bottom end is placed on the support body; a plurality of second connecting shafts are sequentially and fixedly installed on the upper surface of the second support frame along the height direction of the second support frame.

[0010] As a technical solution of the present application, the second connecting shafts are respectively welded to the upper surfaces of the longitudinal beams at the opposite sides of the second support frame.

[0011] As a technical solution of the present application, the second support frame is a rectangular frame.

[0012] As a technical solution of the present application, the first connecting shaft and the second connecting shaft connected with the same pedal are of the same height.

[0013] As a technical solution of the present application, the opposite sides of the pedal are respectively rotatably adjusted and sleeved on the corresponding first connecting shaft and second connecting shaft.

[0014] As a technical solution of the present application, the side wall of the upper support frame is fixedly installed with a guardrail.

[0015] The beneficial effects of the present application are as follows:

[0016] The device can meet the use requirements of the wellhead operation station rack under different height conditions by adjusting the installation angle between the upper support frame, the lower support frame and the wellhead operation station rack, and has wide application range and convenient and fast operation. At the same time, the device can adjust the levelness of the pedal by driving the installation angle of the lower support frame while adjusting the height of the operation station rack, so that the pedal always maintains a parallel state with the ground or other support body, and the pedal always maintains a horizontal state, so that the construction workers can safely climb onto the operation station rack through the pedal, and the purpose of safe construction is achieved, and the safety and practicality of the device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and other related drawings can also be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0018] Figure 1 The safety escalator with adjustable inclination provided by the embodiment of the present application is shown in the schematic diagram.

[0019] Figure 2 The schematic diagram of the pedal cooperating with the first connecting shaft and the second connecting shaft respectively provided by the embodiment of the present application is shown.

[0020] Icon: 1-upper support; 2-lower support; 3-pedal; 4-first connecting shaft; 5-second connecting shaft; 6-hook; 7-guardrail. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts are within the scope of protection of the present application.

[0023] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0024] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the utility model product is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0025] In addition, in the present application, unless otherwise explicitly specified and limited, the first feature above or below the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0026] Furthermore, the terms "horizontal", "vertical", and the like are used as terms of convenience and are not intended to limit the components to an absolute horizontal or vertical position, but rather can be slightly inclined. For example, "horizontal" merely means more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but rather can be slightly inclined.

[0027] In the description of the present application, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Embodiment:

[0029] Please refer to Figure 1 , and refer to Figure 2 The present application provides an adjustable angle safety escalator, which mainly comprises an upper support 1, a lower support 2 and a plurality of steps 3; wherein the lower support 2 is inclinedly arranged, and the top end thereof is rotatably and adjustably connected to one side of the work platform frame, and the bottom end thereof is placed on the support body; the upper support 1 is arranged in parallel and spaced apart above the lower support 2, and the bottom end thereof is placed on the support body; at the same time, a plurality of first connecting shafts 4 are fixedly installed on the lower support 2 and arranged in sequence from bottom to top and spaced apart and horizontally arranged, and a plurality of second connecting shafts 5 are fixedly installed on the upper support 1 and arranged in sequence from bottom to top and spaced apart and horizontally arranged; the steps 3 are arranged horizontally in sequence from bottom to top, and the opposite sides are rotatably and adjustably sleeved on the corresponding first connecting shafts 4 and second connecting shafts 5. In addition, the heights of the first connecting shafts 4 and the second connecting shafts 5 connected with the same step 3 are the same.

[0030] Further, the lower support 2 comprises a first support frame and a plurality of hooks 6; wherein the first support frame is inclinedly arranged, and the bottom end thereof is placed on the support body; one end of the plurality of hooks 6 is respectively fixedly installed on the top end of the first support frame, and the other end thereof is respectively connected to the cross beam on one side of the work platform frame; at the same time, a plurality of first connecting shafts 4 are respectively welded on the upper surfaces of the longitudinal beams on the opposite sides of the first support frame in sequence and spaced apart along the height direction of the first support frame.

[0031] Specifically, in the present embodiment, the first support frame can be a rectangular frame.

[0032] Further, the upper support 1 comprises a second support frame; wherein the second support frame is arranged in parallel and spaced apart above the lower support 2, and the bottom end is placed on the support body; meanwhile, a plurality of second connecting shafts 5 are welded in sequence and spaced apart on the upper surfaces of the longitudinal beams on the opposite sides of the second support frame along the height direction of the second support frame.

[0033] Specifically, in the embodiment, the second support frame can be a rectangular frame.

[0034] In addition, a guardrail 7 is fixedly installed on the side wall of the upper support 1; when the construction worker climbs the ladder, the guardrail 7 can play a safe protection role.

[0035] When it is necessary to adjust the height of the working platform according to different well site heights, only the existing large driver such as the hydraulic cylinder is needed to lift or lower the working platform, at this time, since the hooks 6 on the lower support 2 are hung on the cross beam on one side of the working platform, the lower support 2 will automatically rise or lower with the rising or lowering of the working platform; since the two sides of the pedal 3 are rotatably adjusted and sleeved on the first connecting shaft 4 on the lower support 2 and the second connecting shaft 5 on the upper support 1, and the first connecting shaft 4 is fixedly welded on the lower support 2 and the second connecting shaft 5 is fixedly welded on the upper support 1, therefore, under the driving of the lower support 2 and the pedal 3, the upper support 1 will also rise or lower with the rising or lowering of the working platform, so that it can automatically adjust the levelness of the pedal 3 while adjusting the height, so that the pedal 3 always maintains parallel with the ground or other support body, and then the pedal 3 is always in a horizontal state.

[0036] Therefore, the device can meet the use requirements of the wellhead working platform under different height conditions by adjusting the installation angle between the upper support 1, the lower support 2 and the wellhead working platform, which has wide application range and is convenient and fast to operate. At the same time, it can adjust the levelness of the pedal 3 placed by driving the installation angle of the lower support 2 while adjusting the height of the working platform, so that the pedal 3 always maintains parallel with the ground or other support body, and then the pedal 3 is always in a horizontal state, so that the construction worker can safely climb onto the working platform through the pedal 3, and the safety and practicality of the device are improved.

[0037] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An incline angle adjustable safety escalator, characterized by, The utility model provides a work station platform frame, including upper support, lower support and a plurality of pedals, the lower support is obliquely arranged, and the top end is rotatably connected on one side of work station platform frame, and the bottom end is placed on the support, the upper support is arranged in parallel and is spaced on the upper side of the lower support, and the bottom end is placed on the support, a plurality of first connecting shafts are fixedly installed on the lower support and are arranged in sequence from bottom to top and are horizontally arranged, a plurality of second connecting shafts are fixedly installed on the upper support and are arranged in sequence from bottom to top and are horizontally arranged, the pedals are horizontally arranged from bottom to top, and the opposite sides are rotatably connected on the corresponding first connecting shaft and second connecting shaft.

2. The safety escalator with an adjustable inclination angle according to claim 1, characterized in that, The lower support includes a first support frame and a plurality of hooks, the first support frame is obliquely arranged, and the bottom end is placed on the support, one end of the plurality of hooks is fixedly installed on the top end of the first support frame, and the other end is connected to the crossbeam on one side of the work station platform frame, and the first connecting shaft is fixedly installed on the upper surface of the first support frame along the height direction of the first support frame.

3. The safety escalator with adjustable inclination angle according to claim 2, characterized in that, The first connecting shaft is welded on the upper surface of the longitudinal beam on the opposite sides of the first support frame.

4. The safety escalator with adjustable inclination angle according to claim 2, characterized in that, The first support frame is a rectangular frame.

5. The safety escalator with adjustable inclination angle according to claim 1, characterized in that, The upper support includes a second support frame, the second support frame is arranged in parallel and is spaced on the upper side of the lower support, and the bottom end is placed on the support, and the second connecting shaft is fixedly installed on the upper surface of the second support frame along the height direction of the second support frame.

6. The safety escalator with adjustable inclination angle according to claim 5, characterized in that, The second connecting shaft is welded on the upper surface of the longitudinal beam on the opposite sides of the second support frame.

7. The safety escalator with adjustable inclination angle according to claim 5, characterized in that, The second support frame is a rectangular frame.

8. The safety escalator with adjustable inclination angle according to claim 1, characterized in that, The height of the first connecting shaft and the second connecting shaft connected with the same pedal is the same.

9. The safety escalator with adjustable inclination angle according to claim 1, characterized in that, The opposite sides of the pedal are rotatably sleeved on the corresponding first connecting shaft and second connecting shaft.

10. The safety escalator with adjustable inclination angle according to claim 1, characterized in that, The side wall of the upper support is fixedly installed with a guardrail.

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