Protective fence device of inward-opening type volute man-entering door

Abstract

The utility model relates to the technical field of water turbine maintenance, in particular to an inward-opening type volute mandoor protective fence device which comprises a plurality of protective structures and clamping structures. The protection structure comprises a hook structure and a connecting rope, one end of the connecting rope is connected with the hook structure, and the hook structure is used for hooking a bolt hole of a door opening of the volute mandoor; each clamping structure comprises a fixing base and a plurality of clamping columns, the clamping columns are arranged on the fixing base, the number of the clamping columns corresponds to the number of the protection structures, and each clamping column is detachably connected with one end of the corresponding connecting rope. The protection structure has the advantages that the hook structures of the protection structures are connected with the bolt holes in the door opening of the volute mandoor in a hanging mode, then the connecting ropes on the protection structures are connected to the clamping columns on the fixing base, the net-shaped structure is formed by the protection structures, and compared with the mode that the ropes are directly tied to form the net-shaped structure on the door opening, the net-shaped structure is more attractive. The device can be quickly disassembled and assembled, and meanwhile the appearance is standard.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbine maintenance, in particular to an inwardly opened volute entry door protective fence device. Background Art

[0002] The volute is the water-guiding component of the turbine. It is connected to the water-guiding penstock and the tailwater pipe. It is located at the outermost layer of the turbine, surrounds the seat ring from all sides, and is connected to the upper and lower transition plates of the seat ring. It guides the water flow to the water-guiding mechanism evenly and symmetrically with a small head loss, and then enters the runner after forming a circulation, ensuring that the runner is always completely immersed in water when working;

[0003] When inspecting the flow passage inside the volute, the maintenance personnel need to enter the volute through the access door on the volute to inspect the internal flow passage equipment. During the inspection, in order to prevent irrelevant personnel from entering the volute, the volute access door needs to be protected.

[0004] Currently, there is no protective device specifically used to prevent entry into the volute entry door. To prevent unauthorized entry, the existing practice is to tie ropes between the bolt holes of the volute entry door and connect the ropes into a mesh structure. This method is cumbersome, time-consuming and labor-intensive to operate. In addition, different maintenance personnel use different rope tying methods, resulting in different rope connection structures, and the appearance cannot be standardized. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the prior art and provide an inwardly opening volute entry door protective fence device.

[0006] The purpose of the utility model is achieved through the following technical solutions: a protective fence device for an inward-opening volute entry door, comprising a snap-fit ​​structure and a plurality of protective structures; the protective structure comprises a hook structure and a connecting rope, one end of the connecting rope is connected to the hook structure, and the hook structure is used to hook the bolt hole of the door opening of the volute entry door; the snap-fit ​​structure comprises a fixing seat and a snap-fit ​​column, a plurality of the snap-fit ​​columns are arranged on the fixing seat, the number of the snap-fit ​​columns corresponds to the number of the protective structures, and each of the snap-fit ​​columns corresponds to one end of a connecting rope and is detachably connected. The utility model provides a plurality of protective structures, and respectively hooks the hook structures of the plurality of protective structures to the plurality of bolt holes on the door opening of the volute entry door, and then connects the connecting ropes of the plurality of protective structures to the plurality of snap-fit ​​columns on the same fixing seat, so that the plurality of protective structures form a mesh fence structure, which has a fast installation speed and a uniform and standardized appearance after installation.

[0007] In some embodiments, the hook structure includes a connecting hook and a connecting rod, wherein the connecting hook is arranged at one end of the connecting rod, and the other end of the connecting rod is connected to a connecting rope, and the connecting hook is used to be hooked with a bolt hole of a door opening of a volute entrance door. The connecting rod is convenient for an operator to take the hook and facilitates the hooking operation.

[0008] In some embodiments, a plurality of limiting rods are further included, the two ends of which are detachably connected to the connecting rods in two adjacent protective structures, and the plurality of connecting rods are grouped in pairs. The limiting rods are used to limit and fix the two adjacent protective structures.

[0009] In some embodiments, the two ends of the limit rod are provided with locking pins, the rod body of the connecting rod is provided with a pin hole, and the locking pin is detachably inserted into the pin hole. The locking pin and the pin hole are provided to facilitate the quick connection between the limit rod and the connecting rod.

[0010] In some embodiments, a clamping ring is fixedly provided at the end of the connecting rope not connected to the hook structure, and the connecting rope is detachably connected to the clamping column through the clamping ring. The clamping ring can be directly connected to the clamping column, which is faster than fastening the connecting rope to the clamping column.

[0011] In some embodiments, the fixing seat is provided with a mounting hole, and the engaging column is detachably inserted into the mounting hole. By inserting the engaging column into the mounting hole, an operator can move a single engaging column to disengage a single protective structure from the engaging structure.

[0012] In some embodiments, both ends of the locking column extend out of the mounting hole. Extending both ends of the locking column out of the mounting hole makes both ends of the locking column protrude from the fixing seat, which is convenient for operators to move the locking column from the outside in some cases.

[0013] In some embodiments, a mounting structure is further included, the mounting structure including a mounting rod and a mounting hook disposed at the top of the mounting rod, the bottom end of the mounting rod is fixedly connected to the fixing seat, and the mounting hook is used to be hooked with the top bolt hole of the door opening of the volute entrance door. The mounting structure is arranged so that when all protective structures are not connected to the snap-fit ​​structure, the snap-fit ​​structure can be supported by the mounting structure and does not fall off.

[0014] In some embodiments, the mounting rod comprises a telescopic rod, which facilitates adjustment of the position of the engaging structure when the engaging structure is connected to the protective structure.

[0015] The utility model has the following advantages:

[0016] By hanging a plurality of protective structures on a plurality of bolt holes on the door opening of the volute entrance door, and then connecting the connecting ropes of all the protective structures to the same snap-fit ​​structure, the protective structures and the snap-fit ​​structures naturally form a mesh enclosure structure to protect the door opening. The operation is quick and the appearance is uniform and standardized. A limit rod is provided to limit and fix the protective structures to enhance the stability of the device. At the same time, an installation structure is also provided to support the snap-fit ​​structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the first perspective of the inward-opening volute entry door protective fence device of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the second viewing angle of the protective fence device of the inwardly opening volute entry door of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the clamping structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the installation of the protective fence device of the inward-opening volute entry door of the utility model;

[0021] In the figure: 1. protective structure; 11. connecting hook; 12. connecting rod; 13. connecting rope; 14. snap ring; 2. snap structure; 21. fixing seat; 22. snap column; 3. limit rod; 31. snap pin; 41. installation hook; 42. installation rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0023] The utility model is further described below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following description.

[0024] like Figure 1-Figure 4 As shown, an inward-opening volute entry door protective fence device includes a snap-fit ​​structure 2 and a plurality of protective structures 1;

[0025] The protective structure 1 comprises a hook structure and a connecting rope 13, one end of the connecting rope 13 is connected to the hook structure, and the hook structure is used to hang on the bolt hole of the door opening of the volute entrance door;

[0026] The snap-fit ​​structure 2 includes a fixing seat 21 and a snap-fit ​​column 22 . A plurality of the snap-fit ​​columns 22 are arranged on the fixing seat 21 . The number of the snap-fit ​​columns 22 corresponds to the number of the protective structures 1 . Each of the snap-fit ​​columns 22 is detachably connected to one end of a connecting rope 13 .

[0027] Specifically, in the present embodiment, a total of four protective structures 1 are provided, and the hook structures in the four protective structures 1 are respectively hung to the bolt holes at the upper, lower, left and right corners of the door opening of the volute entrance door. Correspondingly, a total of four locking columns 22 are provided on the locking structure 2 in the present embodiment, and the four connecting ropes 13 on the four protective structures 1 are respectively detachably connected to the four locking columns 22.

[0028] Preferably, the hook structure includes a connecting hook 11 and a connecting rod 12, wherein the connecting hook 11 is arranged at one end of the connecting rod 12, and the other end of the connecting rod 12 is connected to a connecting rope 13, and the connecting hook 11 is used to be connected to a bolt hole of a door opening of a volute entrance door. The connecting rod 12 is convenient for an operator to hold and operate the connecting hook 11. Specifically, the length of the connecting rod 12 in this embodiment is less than the radius of the door opening of the volute entrance door, so that each protective structure 1 can be connected to the snap-fit ​​structure 2.

[0029] Preferably, it further comprises a plurality of limiting rods 3, the two ends of which are detachably connected to the connecting rods 12 in two adjacent protective structures 1, and the plurality of connecting rods 12 are grouped in pairs. Specifically, in this embodiment, there are two limiting rods 3, which are respectively connected to four connecting rods 12 located on both sides of the door opening of the volute entrance door, and the limiting rods 3 limit and fix the connecting rods 12.

[0030] Preferably, the two ends of the limit rod 3 are provided with a locking pin 31, and the rod body of the connecting rod 12 is provided with a pin hole, and the locking pin 31 is detachably inserted into the pin hole. Through the connection between the locking pin 31 and the pin hole, the limit rod 3 and the connecting rod 12 can be quickly connected and separated.

[0031] Preferably, a snap ring 14 is fixedly provided at one end of the connecting rope 13 that is not connected to the hook structure, and the connecting rope 13 is detachably connected to the snap post 22 through the snap ring 14. In this embodiment, the snap ring 14 is made of a hard material, and when the connecting rope 13 is connected to the snap post 22, the snap ring 14 can be directly put on the snap post 22, avoiding the connection between the connecting rope 13 and the snap post 22, and the operation is simple and quick.

[0032] Preferably, the fixing seat 21 is provided with a mounting hole, and the engaging column 22 is detachably inserted into the mounting hole. In this embodiment, four mounting holes are provided corresponding to the four engaging columns 22, and the engaging columns 22 are inserted into the fixing seat 21 through the mounting holes. When removing the connecting rope 13 from the engaging structure 2, a single connecting rope 13 can be detached by moving a single engaging column 22.

[0033] Preferably, both ends of the locking column 22 extend outside the mounting hole. The locking column 22 passes through the fixing seat 21, so that the operator can move the locking column 22 from both sides of the door opening of the volute to disassemble and assemble the device, which is easy to use.

[0034] Preferably, it also includes a mounting structure, which includes a mounting rod 42 and a mounting hook 41 arranged at the top of the mounting rod 42, the bottom end of the mounting rod 42 is fixedly connected to the fixing seat 21, and the mounting hook 41 is used to be hooked with the top bolt hole of the door opening of the volute entrance door. The mounting structure provides support for the snap-fit ​​structure 2 to prevent the snap-fit ​​structure 2 from falling without support when it is not connected to the protective structure 1.

[0035] Preferably, the mounting rod 42 comprises a telescopic rod. The telescopic rod is a common technical means for those skilled in the art, and its specific structure is not described here. The mounting rod 42 is set as a telescopic rod to facilitate moving the fixing seat 21 when the clamping ring 14 is sleeved on the clamping column 22, making it easier to clamp.

[0036] The method of using this embodiment is as follows: first, the connecting hooks 11 on the four protective structures 1 are respectively hooked to the four bolt holes on the upper, lower, left and right sides of the door opening of the volute entrance door, and then the two limiting rods 3 are respectively connected to the connecting rods 12 on the left and right sides to limit the connecting rods 12; then the installation hooks 41 of the installation structure are hooked to the bolt holes at the top of the door opening of the volute entrance door; finally, the snap rings 14 at the ends of the four connecting ropes 13 are sleeved on the snap columns 22 on the fixing seat 21 to complete the installation of the device. After the four protective structures 1 are connected to the snap structure 2, a mesh fence structure is formed to protect the door opening of the volute entrance door.

[0037] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the above-mentioned technical content without departing from the scope of the technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the utility model without departing from the content of the technical solution of the utility model shall fall within the protection scope of the technical solution of the utility model.

Claims

1. An inward-opening volute entry door protective fence device, characterized in that: include: A plurality of protective structures (1), the protective structures (1) comprising a hook structure and a connecting rope (13), one end of the connecting rope (13) being connected to the hook structure, the hook structure being used to hook a bolt hole of a door opening of a volute entrance door; A snap-fit ​​structure (2), the snap-fit ​​structure (2) comprising a fixing seat (21) and a snap-fit ​​column (22), a plurality of the snap-fit ​​columns (22) being arranged on the fixing seat (21), the number of the snap-fit ​​columns (22) corresponding to the number of the protective structures (1), and each of the snap-fit ​​columns (22) being detachably connected to one end of a connecting rope (13).

2. The inward-opening volute entry door protective fence device according to claim 1, characterized in that: The hook structure comprises a connecting hook (11) and a connecting rod (12), wherein the connecting hook (11) is arranged at one end of the connecting rod (12), and the other end of the connecting rod (12) is connected to a connecting rope (13), and the connecting hook (11) is used to be connected to a bolt hole of a door opening of a volute entrance door.

3. The inward-opening volute entry door protective fence device according to claim 2, characterized in that: It also comprises a plurality of limiting rods (3), the two ends of which are detachably connected to the connecting rods (12) in two adjacent protective structures (1), so that the plurality of connecting rods (12) are grouped in pairs.

4. The inward-opening volute entry door protective fence device according to claim 3, characterized in that: Both ends of the limiting rod (3) are provided with locking pins (31), and the rod body of the connecting rod (12) is provided with a pin hole, and the locking pin (31) is detachably inserted into the pin hole.

5. The inward-opening volute entry door protective fence device according to claim 1, characterized in that: A snap ring (14) is fixedly provided on the end of the connection rope (13) not connected to the hook structure, and the connection rope (13) is detachably sleeved on the snap column (22) via the snap ring (14).

6. The inward-opening volute entry door protective fence device according to claim 1, characterized in that: The fixing seat (21) is provided with a mounting hole, and the engaging column (22) is detachably inserted into the mounting hole.

7. The inward-opening volute entry door protective fence device according to claim 6, characterized in that: Both ends of the engaging column (22) extend outside the mounting hole.

8. The inward-opening volute entry door protective fence device according to claim 1, characterized in that: It also includes a mounting structure, which includes a mounting rod (42) and a mounting hook (41) arranged at the top of the mounting rod (42), the bottom end of the mounting rod (42) is fixedly connected to the fixing seat (21), and the mounting hook (41) is used to be hung with the top bolt hole of the door opening of the volute entrance door.

9. The inward-opening volute entry door protective fence device according to claim 8, characterized in that: The mounting rod (42) comprises a telescopic rod.

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