Simple and safe anti-falling device for wellhead of cable channel

Abstract

The utility model discloses a simple and safe anti-falling device for a cable channel wellhead. The simple and safe anti-falling device comprises a base, a handrail frame installed on one side of the base and an anti-falling hoisting supporting frame arranged above the base. The base is a square frame matched with a well mouth, and the four sides of the base are each provided with a tensioner. The armrest frame comprises a third U-shaped frame; the third U-shaped frame is detachably mounted on one side of the base in an inverted manner; the anti-falling hoisting support frame comprises a straight-edge support rod, a cross rod and a bevel-edge support rod; the straight-edge supporting rod is detachably and vertically installed in the middle of the armrest frame, the bottom end of the bevel-edge supporting rod is detachably connected with the middle of the side, away from the armrest frame, of the base, the top end of the bevel-edge supporting rod inclines towards the middle of the base, and the top rod is connected between the top end of the straight-edge supporting rod and the top end of the bevel-edge supporting rod. A lifting ring is arranged on the ejector rod and arranged above the center of the base.

Description

Technical Field

[0001] The utility model relates to a field, and particularly relates to a simple and safe anti-falling device for the wellhead of a cable channel. Background Technique

[0002] Cable tunnels are mostly located several meters to dozens of meters underground. Workers in the tunnel must enter and exit from the wellhead, and ladders are mostly used to go up and down the tunnel. According to the safety regulations, double safety belts must be used for high-altitude operations to improve the safety of work. Therefore, the wellhead device for fixing the safety belt protection rope is particularly important.

[0003] At present, anti-falling devices of type A and B and tripod anti-falling devices are mostly used in cable tunnels to connect safety belts. However, the anti-falling devices of type A and B are relatively large in size and cannot be loaded into small vehicles. They are time-consuming to operate and require multiple people to install, remove and carry. The base of the tripod anti-falling device cannot be fixed, and it is easy to slip when people hold and support it up and down.

[0004] Therefore, in the face of the problems that the current anti-falling devices are large in size and inconvenient for disassembly, installation and transportation, and the base cannot be fixed, it is an urgent problem to be solved at present to develop a simple and safe anti-falling device for the wellhead of a cable channel that is convenient for small vehicles to carry, can be installed, removed and transported by one person, and has simple installation and strong stability. Content of the Utility Model

[0005] The purpose of the utility model is to provide a simple and safe anti-falling device for the wellhead of a cable channel to solve the problems that the existing anti-falling devices are large in size and inconvenient for disassembly, installation and transportation, and the base cannot be fixed.

[0006] To solve the above technical problems, the present invention provides a simple and safe anti-falling device for the wellhead of a cable channel, including a base, a handrail frame installed on one side of the base, and an anti-falling lifting support frame arranged above the base;

[0007] The base is a square frame matching the wellhead, and a tensioner is respectively arranged on the four sides of the base;

[0008] The handrail frame includes a third U-shaped frame, and the third U-shaped frame is detachably and inversely installed on one side of the base;

[0009] The anti-falling lifting support frame includes a straight-edge support rod, a cross bar and an inclined-edge support rod; the straight-edge support rod is detachably and vertically installed in the middle of the handrail frame, the bottom end of the inclined-edge support rod is detachably connected to the middle of the side of the base away from the handrail frame, the top end of the inclined-edge support rod is inclined towards the middle of the base, and a top rod is connected between the top end of the straight-edge support rod and the top end of the inclined-edge support rod; a hanging ring is arranged on the top rod, and the hanging ring is arranged above the center of the base.

[0010] Further, the base includes a first U-shaped frame and a second U-shaped frame, and both ends of the first U-shaped frame and both ends of the second U-shaped frame are detachably connected through a first connecting member.

[0011] Further, the armrest frame is detachably installed on the first U-shaped frame, and the bevel strut is installed on the second U-shaped frame; a support rod is provided between the base and the armrest frame, and one end of the support rod is detachably connected to the side rod of the third U-shaped frame, and the other end of the support rod is detachably connected to the side rod of the second U-shaped frame.

[0012] Further, a first threaded post horizontally disposed toward the middle of the first U-shaped frame is provided on the side rod of the third U-shaped frame, and a first nut is provided on the first threaded post; a second threaded post horizontally disposed toward the middle of the second U-shaped frame is provided on the side rod of the second U-shaped frame, and a second nut is provided on the second threaded post; a first connection hole adapted to the first threaded post is provided at one end of the support rod, and a second connection hole adapted to the second threaded post is provided at the other end of the support rod.

[0013] Further, the support rod includes an intermediate rod body, a first connection head and a second connection head; threaded connection heads are respectively provided at both ends of the intermediate rod body; one end of the first connection head is connected to the threaded connection head, and the first connection hole is provided at the other end of the first connection head; one end of the second connection head is connected to the threaded connection head, and the second connection hole is provided at the other end of the second connection head.

[0014] Further, a first plug-in joint adapted to both ends of the third U-shaped frame is respectively provided at two top corners of the first U-shaped frame, and both ends of the third U-shaped frame are respectively pluggably connected to the first plug-in joint.

[0015] Further, a second plug-in joint adapted to the bottom end of the bevel strut is provided in the middle of the second U-shaped frame, and the bottom end of the bevel strut is pluggably connected to the second plug-in joint; a third plug-in joint is provided in the middle of the top of the armrest frame, and the bottom end of the straight-side strut is pluggably connected to the third plug-in joint through a second connecting member.

[0016] Further, the top rod is U-shaped, and both ends of the top rod are respectively connected to the straight-side strut and the bevel strut through a third connecting member.

[0017] Further, there are two bevel struts, and the two bevel struts are connected through a fourth connecting member.

[0018] Further, a cross bar horizontally connecting between two side rods of the third U-shaped frame is provided in the middle of the third U-shaped frame.

[0019] The beneficial effects of the present utility model are:

[0020] 1. By making the base, the armrest frame and the anti-fall lifting support frame detachably connected, it is convenient for disassembly, assembly, storage and transportation. By providing a tensioner on each of the four sides of the base, it is convenient to fix the tensioner on the anti-fall hooks on the inner walls of the tunnel wellhead or the inner edge of the wellhead during use, so as to fix the base and prevent the base from slipping under force.

[0021] 2. Adopt a pluggable method to fixedly connect the various parts of the device together. The disassembly and assembly are simple, and one person can install and disassemble the anti-fall device, which is very convenient.

[0022] 3. By setting the support rod, the stability of the armrest frame and the straight-edge support rod can be improved, thus ensuring the stability of the entire anti-fall device. Brief Description of the Drawings

[0023] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The same reference numerals are used to represent the same or similar parts in these drawings. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0024] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model.

[0025] Figure 2 It is a schematic structural diagram of the armrest frame of an embodiment of the present utility model.

[0026] Figure 3 It is a schematic structural diagram of the base of an embodiment of the present utility model.

[0027] Figure 4 It is a schematic structural diagram of the support rod of an embodiment of the present utility model.

[0028] Among them: 1. Base; 11. First U-shaped frame; 111. First plug-in joint; 12. Second U-shaped frame; 121. Second plug-in joint; 13. First connecting piece; 2. Third U-shaped frame; 21. Cross bar; 22. Third plug-in joint; 3. Support rod; 31. Intermediate rod body; 311. Threaded connection head; 32. First connection head; 321. First connection hole; 33. Second connection head; 331. Second connection hole; 4. Straight-edge support rod; 41. Second connecting piece; 5. Jack rod; 51. Third connecting piece; 6. Inclined-edge support rod; 61. Fourth connecting piece; 7. Suspension ring; 8. First threaded column; 81. First nut; 9. Second threaded column; 10. Tensioner. Detailed Embodiment

[0029] As Figure 1The simple and safe anti-falling device for the cable channel wellhead shown in the figure includes a base 1, a handrail frame installed on one side of the base 1, and an anti-falling hoisting support frame arranged above the base 1; the base 1 is a square frame matching the wellhead, and a tensioner 10 is respectively arranged on the four sides of the base 1; the handrail frame includes a third U-shaped frame 2, and the third U-shaped frame 2 is detachably and inversely installed on one side of the base 1; the anti-falling hoisting support frame includes a straight-edge support rod 4, a cross bar 21, and an inclined-edge support rod 6; the straight-edge support rod 4 is detachably and vertically installed in the middle of the handrail frame, the bottom end of the inclined-edge support rod 6 is detachably connected to the middle of the side of the base 1 away from the handrail frame, the top end of the inclined-edge support rod 6 is inclined towards the middle of the base 1, and a top rod 5 is connected between the top end of the straight-edge support rod 4 and the top end of the inclined-edge support rod 6; a hanging ring 7 is arranged on the top rod 5, and the hanging ring 7 is arranged above the center of the base 1. The sizes of the base 1 and the anti-falling hoisting support frame can be customized according to the standard size of the wellhead to ensure the stability, universality and popularization of the device; all structures of the anti-falling device are mainly composed of corrosion-resistant high-strength stainless steel pipe materials, which can effectively bear the hoisting and anti-falling of operators and conventional operation and inspection equipment, materials, etc. (rated maximum value: 100 kg for high-altitude anti-falling, 150 kg for hoisting); emergency braking or hoisting devices such as electric hoists, pulleys, and manual winches can be added to the anti-falling hoisting support frame to be quickly started when operators or heavy objects accidentally fall, slow down the falling speed, and minimize injuries and prevent object strikes to the greatest extent.

[0030] In this application, by making the base 1, the handrail frame and the anti-falling hoisting support frame detachably connected, it is convenient for disassembly, installation, storage and handling; by respectively arranging a tensioner 10 on the four sides of the base 1, it is convenient to fix the tensioner 10 on the anti-falling hooks on the four inner walls of the tunnel wellhead or the inner edge of the wellhead during use, so as to fix the base 1 and prevent the base 1 from slipping under force.

[0031] According to an embodiment of the present application, the base 1 includes a first U-shaped frame 11 and a second U-shaped frame 12, and the two ends of the first U-shaped frame 11 and the two ends of the second U-shaped frame 12 are detachably connected through a first connecting member 13. In this embodiment, the base 1 in the shape of a square frame matching the wellhead is composed of two relatively detachably connected first U-shaped frames 11 and second U-shaped frames 12, which is convenient for storage and convenient for handling. The first connecting member 13 can adopt a pluggable connector, and after the first U-shaped frame 11 and the second U-shaped frame 12 are connected through the pluggable connector, they are fixed through fasteners (nuts and bolts).

[0032] According to an embodiment of the present application, the armrest frame is detachably mounted on the first U-shaped frame 11, and the hypotenuse support rod 6 is mounted on the second U-shaped frame 12; a support rod 3 is provided between the base 1 and the armrest frame. One end of the support rod 3 is detachably connected to the side rod of the third U-shaped frame 2, and the other end of the support rod 3 is detachably connected to the side rod of the second U-shaped frame 12. By providing the support rod 3 in this embodiment, the stability of the armrest frame and the straight-edge support rod 4 can be improved, thereby ensuring the stability of the entire anti-falling device.

[0033] According to an embodiment of the present application, as Figure 2 shown, a first threaded column 8 horizontally disposed toward the middle of the first U-shaped frame 11 is provided on the side rod of the third U-shaped frame 2, and a first nut 81 is provided on the first threaded column 8; as Figure 3 shown, a second threaded column 9 horizontally disposed toward the middle of the second U-shaped frame 12 is provided on the side rod of the second U-shaped frame 12, and a second nut is provided on the second threaded column 9; a first connection hole 321 adapted to the first threaded column 8 is provided at one end of the support rod 3, and a second connection hole 331 adapted to the second threaded column 9 is provided at the other end of the support rod 3. After the base 1 and the armrest frame are installed, the first connection hole 321 of the support rod 3 is installed on the first threaded column 8, and then one end of the support rod 3 is locked on the first threaded column 8 by the first nut 81; the second connection hole 331 of the support rod 3 is installed on the second threaded column 9, and then one end of the support rod 3 is locked on the second threaded column 9 by the second nut; the fixing of the support rod 3 is completed.

[0034] According to an embodiment of the present application, as Figure 4 shown, the support rod 3 includes an intermediate rod body 31, a first connection head 32, and a second connection head 33; threaded connection heads 311 are respectively provided at both ends of the intermediate rod body 31, and the first connection head 32 and the second connection head 33 are respectively threadedly connected to the threaded connection heads 311; one end of the first connection head 32 is connected to the threaded connection head 311, and the first connection hole 321 is provided at the other end of the first connection head 32; one end of the second connection head 33 is connected to the threaded connection head 311, and the second connection hole 331 is provided at the other end of the second connection head 33. In this embodiment, by respectively providing the threaded connection heads 311 at both ends of the intermediate rod body 31, and the thread directions of the threaded connection heads 311 at both ends of the intermediate rod body 31 are opposite, it is convenient to adjust the length of the support rod 3 according to needs during use.

[0035] According to an embodiment of the present application, a first plug-in joint 111 adapted to both ends of the third U-shaped frame 2 is respectively provided at two top corners of the first U-shaped frame 11, and both ends of the third U-shaped frame 2 are respectively pluggably connected to the first plug-in joint. The first plug-in joint 111 is a plug-in interface. During installation, both ends of the third U-shaped frame 2 are respectively inserted into the plug-in interfaces on the corresponding sides, and then fixed by fasteners.

[0036] According to an embodiment of the present application, a second plug-in joint 121 that cooperates with the bottom end of the inclined side support rod 6 is provided in the middle of the second U-shaped frame 12, and the bottom end of the inclined side support rod 6 is detachably connected to the second plug-in joint 121; a third plug-in joint 22 is provided in the middle of the top of the handrail frame, and the bottom end of the straight side support rod 4 is detachably connected to the third plug-in joint 22 through a second connecting member 41. The second plug-in joint 121 is also an insertion port. During installation, the bottom end of the inclined side support rod 6 is inserted into the insertion port and then fixed by a fastener. The third plug-in joint 22 is a vertical rod protruding upward, and the second connecting member 41 is a detachable interface with insertion ports provided at both ends. During installation, after the bottom end of the straight side support rod 4 and the third plug-in joint 22 are respectively inserted into the detachable interfaces at both ends of the second connecting member 41, they are fixedly connected by a fastener.

[0037] According to an embodiment of the present application, the top rod 5 is U-shaped, and both ends of the top rod 5 are respectively connected to the straight side support rod 4 and the inclined side support rod 6 through a third connecting member 51. The third connecting member 51 is a detachable interface with insertion ports provided at both ends. During installation, after one end of the top rod 5 and the straight side support rod 4 are respectively inserted into the detachable interfaces of the third connecting member 51, they are fixedly connected by a fastener; the same is true for the other end of the top rod 5 and the inclined side support rod 6.

[0038] According to an embodiment of the present application, there are two inclined side support rods 6, and the two inclined side support rods 6 are connected through a fourth connecting member 61. The fourth connecting member 61 is a detachable interface with insertion ports provided at both ends. After the two inclined side support rods 6 are respectively inserted into the detachable interfaces of the fourth connecting member 61, they are fixedly connected by a fastener.

[0039] According to an embodiment of the present application, a cross bar 21 horizontally connected between the two side rods of the third U-shaped frame 2 is provided in the middle of the third U-shaped frame 2. In this embodiment, by providing the cross bar 21 between the two side rods of the third U-shaped frame 2, not only the stability of the third U-shaped frame 2 can be improved, but also it is convenient for maintenance personnel to select a handrail according to height requirements when entering and leaving the well.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A simple safety anti-falling device for a cable channel wellhead, characterized in that: It includes a base, a handrail frame installed on one side of the base, and an anti-fall lifting support frame arranged above the base; The base is a square frame that matches the wellhead, and a tensioner is provided on each of the four sides of the base; The armrest frame includes a third U-shaped frame, and the third U-shaped frame is detachably mounted upside down on one side of the base; The anti-fall lifting support frame includes a straight-side support rod, a horizontal rod and a beveled support rod; the straight-side support rod is detachably installed upright in the middle of the handrail frame, the bottom end of the beveled support rod is detachably connected to the middle of a side of the base away from the handrail frame, the top end of the beveled support rod is inclined toward the middle of the base, and the top rod is connected between the top end of the straight-side support rod and the top end of the beveled support rod; a lifting ring is provided on the top rod, and the lifting ring is arranged above the center of the base.

2. The simple safety anti-falling device for the cable channel wellhead according to claim 1 is characterized in that: The base comprises a first U-shaped frame and a second U-shaped frame, and two ends of the first U-shaped frame are detachably connected to two ends of the second U-shaped frame through a first connecting piece.

3. The simple safety anti-falling device for the cable channel wellhead according to claim 2 is characterized in that: The handrail frame is detachably mounted on the first U-shaped frame, and the hypotenuse support rod is mounted on the second U-shaped frame; a support rod is provided between the base and the handrail frame, one end of the support rod is detachably connected to the side rod of the third U-shaped frame, and the other end of the support rod is detachably connected to the side rod of the second U-shaped frame.

4. The simple safety anti-falling device for the cable channel wellhead according to claim 3 is characterized in that: The side rod of the third U-shaped frame is provided with a first threaded column horizontally arranged toward the middle of the first U-shaped frame, and the first threaded column is provided with a first nut; the side rod of the second U-shaped frame is provided with a second threaded column horizontally arranged toward the middle of the second U-shaped frame, and the second threaded column is provided with a second nut; one end of the support rod is provided with a first connecting hole matching with the first threaded column, and the other end of the support rod is provided with a second connecting hole matching with the second threaded column.

5. The simple safety anti-falling device for the cable channel wellhead according to claim 4 is characterized in that: The support rod includes an intermediate rod body, a first connecting head and a second connecting head; threaded connecting heads are respectively provided at both ends of the intermediate rod body; one end of the first connecting head is connected to the threaded connecting head, and a first connecting hole is arranged at the other end of the first connecting head; one end of the second connecting head is connected to the threaded connecting head, and a second connecting hole is arranged at the other end of the second connecting head.

6. The simple safety anti-falling device for the cable channel wellhead according to claim 5 is characterized in that: A first plug connector matching with two ends of the third U-shaped frame is respectively provided on the two top corners of the first U-shaped frame, and the two ends of the third U-shaped frame are respectively connected to the first plug connector in a pluggable manner.

7. The simple safety anti-falling device for the cable channel wellhead according to claim 6 is characterized in that: A second plug-in connector is provided in the middle of the second U-shaped frame, which matches the bottom end of the hypotenuse support rod, and the bottom end of the hypotenuse support rod is pluggable and connected to the second plug-in connector; a third plug-in connector is provided in the middle of the top of the handrail frame, and the bottom end of the straight-side support rod is pluggable and connected to the third plug-in connector through the second connecting piece.

8. The simple safety anti-falling device for the wellhead of the cable channel according to claim 7 is characterized in that: The top rod is U-shaped, and both ends of the top rod are connected to the straight-side support rod and the oblique-side support rod through a third connecting piece respectively.

9. The simple safety anti-falling device for the cable channel wellhead according to claim 8 is characterized in that: There are two hypotenuse support rods, and the two hypotenuse support rods are connected by a fourth connecting piece.

10. The simple safety anti-falling device for the wellhead of the cable channel according to claim 9, characterized in that: A cross bar horizontally connected between two side bars of the third U-shaped frame is provided in the middle of the third U-shaped frame.

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