Novel wellhead safety door device

CN224118558UActive Publication Date: 2026-04-14JINAN DONGSHAN MINING EQUIP CO LTD
View PDF -1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing wellhead safety gate devices can affect the descent process when parts malfunction, are easily obstructed during equipment handling, and are prone to damage when not in use for extended periods, increasing maintenance costs.

Method used

A wellhead safety door, comprising a manual disassembly frame structure and a corrosion inhibitor spraying box device, was designed. The safety door can be quickly disassembled using the manual disassembly frame structure, and the corrosion inhibitor spraying box can be used to extend the service life of the parts.

Benefits of technology

It enables quick disassembly of safety doors and convenient handling of equipment, extends the service life of parts, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224118558U_ABST
    Figure CN224118558U_ABST
Patent Text Reader

Abstract

The utility model provides a novel wellhead safety door device which comprises a door-shaped frame, a box body is fixedly installed at the lower end of the right side of the door-shaped frame, a box door is connected to the right side of the box body through hinges, a handle is fixedly installed on the left side of the box door, and a manual disassembly frame structure is installed in the middle of the front end of the door-shaped frame. And a preservative spraying box device is mounted in the box door. Due to the arrangement of the hollow supporting column, the supporting rod, the handheld circular ring, the fixing plate, the U-shaped plate and the safety pin, a worker can pull the handheld circular ring and the supporting rod manually to take out the handheld circular ring and the supporting rod conveniently, then the hollow supporting column and the blocking net are taken down together, the function of quick disassembly and use is achieved, and carrying of other equipment is more convenient; and therefore, workers can quickly use the device more conveniently.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of safety door technology, and in particular relates to a novel wellhead safety door device. Background Technology

[0002] The shaft safety door device is an important safety facility in the mine hoisting system. The safety door is kept closed during non-working hours and is mainly used to prevent personnel or objects from entering the dangerous area to ensure the safety of hoisting operations. The shaft safety door device is designed to prevent personnel from entering the shaft or dangerous area to avoid personnel falling into the shaft accident.

[0003] The existing wellhead safety door device includes a portal frame installed at the wellhead. The inner sides of the two columns of the portal frame are provided with sliding grooves. The sliding grooves are equidistantly distributed with positive limiting steps, and the width of the positive limiting steps increases from top to bottom. Each positive limiting step is supported by a crossbar, which can slide up and down along the sliding groove. A transmission frame is installed on the top crossbeam of the portal frame.

[0004] The existing wellhead safety door device has the following problems: the motor drives the worm gear to rotate through the reducer, and the worm gear meshes with the worm to drive the drum to rotate. The steel wire rope wound on the drum slowly descends, thereby opening the safety door. However, if any part of the existing device malfunctions, it will affect the descent of the safety door. When the safety door jams or shifts, the staff needs to spend more time to repair it. Furthermore, when it is necessary to move and use equipment at the wellhead, the equipment is easily blocked by the safety door, which requires the disassembly of the safety door, thus increasing the staff's waiting time. In addition, if the connection ends of various parts are not treated with anti-corrosion, the internal parts are easily damaged when the device is not used for a long time, increasing the cost. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a novel wellhead safety door device. The operator can manually pull the hand-held ring and support rod to remove the device, and then remove the hollow support column and barrier net together to complete the function of quick disassembly and use. It is also more convenient to move other equipment, making it easier for operators to use the device quickly. Furthermore, by spraying an anti-corrosion agent through a nozzle, the entire internal structure can be sprayed to increase the service life of the internal parts.

[0006] This utility model is achieved through the following technical solution:

[0007] A novel wellhead safety door device includes a door-shaped frame, a box body fixedly installed at the lower right end of the door-shaped frame, a door connected to the right side of the box body by a hinge, a handle fixedly installed on the left side of the door, a manual disassembly frame structure installed at the middle of the front end of the door-shaped frame, and an anti-corrosion spraying box device installed inside the door.

[0008] Preferably, the manual disassembly frame structure includes two hollow support columns, a U-shaped plate, and a fixing plate. Support rods are inserted into the interior of the two hollow support columns. Hand-held rings are fixedly installed on the left side of each of the two support rods. The left side of each of the two support rods passes through the interior of the fixing plate. The two support rods and the U-shaped plate are connected by a safety pin. A barrier net is fixedly installed between the inner sides of the two hollow support columns.

[0009] Preferably, the preservative spraying box device includes a tank and a water pump. A feed hopper is threadedly connected to the upper opening of the tank. The input end of the water pump is connected to the opening on the lower left side of the tank. A hose is threadedly connected to the output end of the water pump. A nozzle is threadedly connected to the upper part of the hose. A belt is sleeved on the outside of the nozzle and placed inside the grab hook.

[0010] Preferably, the lower part of the water pump is fixedly installed on the lower left side of the housing.

[0011] Preferably, the lower part of the tank is fixedly installed on the lower right side of the box body.

[0012] Preferably, the grab hook is fixedly installed in the upper left corner of the box body.

[0013] Preferably, the rear sides of the two fixing plates are respectively fixedly installed on the left side of the front end of the portal frame.

[0014] Preferably, the rear sides of the two U-shaped plates are respectively fixedly installed on the right side of the front end of the portal frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, the hollow support column, support rod, hand-held ring, fixing plate, U-shaped plate and safety pin are designed to facilitate workers to manually pull the hand-held ring and support rod to remove the hollow support column and the barrier net together, thus enabling quick disassembly and use. It also makes it easier to move other equipment and thus makes it easier for workers to use the equipment quickly.

[0017] 2. In this utility model, the arrangement of the tank, feed hopper, water pump, hose and nozzle is conducive to spraying the corrosion inhibitor through the nozzle. After spraying the entire interior, the service life of the internal parts can be increased. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0020] Figure 3 This is a structural diagram of the manual disassembly frame structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the preservative spraying box device of this utility model.

[0022] In the picture:

[0023] 1. Door frame; 2. Box body; 3. Box door; 4. Handle; 5. Manual disassembly frame structure; 51. Hollow support column; 52. Support rod; 53. Hand-held ring; 54. Fixing plate; 55. U-shaped plate; 56. Safety pin; 57. Barrier net; 6. Corrosion inhibitor spraying box device; 61. Tank body; 62. Feed hopper; 63. Water pump; 64. Hose; 65. Spray head; 66. Belt; 67. Grab hook. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings, as shown below. Figure 1 and attached Figure 2 As shown, a novel wellhead safety door device includes a door-shaped frame 1, a box 2 fixedly installed at the lower right end of the door-shaped frame 1, a door 3 connected to the right side of the box 2 by a hinge, a handle 4 fixedly installed on the left side of the door 3, a manual disassembly frame structure 5 installed at the middle of the front end of the door-shaped frame 1, and an anti-corrosion spraying box device 6 installed inside the door 3.

[0025] In this implementation plan, in conjunction with the appendix Figure 3 As shown, the manually disassembly frame structure 5 includes two hollow support columns 51, a U-shaped plate 55, and a fixing plate 54. Support rods 52 are inserted into the interior of the two hollow support columns 51. Handheld rings 53 are fixedly installed on the left side of each of the two support rods 52. The left side of each support rod 52 passes through the interior of the fixing plate 54. The two support rods 52 and the U-shaped plate 55 are connected by safety pins 56. Barrier nets 57 are fixedly installed between the inner sides of the two hollow support columns 51. In this embodiment, in conjunction with the attached... Figure 4As shown, the corrosion inhibitor spraying box device 6 includes a tank 61 and a water pump 63. A feed hopper 62 is threadedly connected to the upper opening of the tank 61. The input end of the water pump 63 is connected to the opening on the lower left side of the tank 61. A hose 64 is threadedly connected to the output end of the water pump 63. A nozzle 65 is threadedly connected to the upper part of the hose 64. A belt 66 is sleeved on the outside of the nozzle 65 and placed inside the grab hook 67.

[0026] In this embodiment, specifically, the lower part of the water pump 63 is fixedly installed on the lower left side inside the housing 2.

[0027] In this embodiment, specifically, the lower part of the tank 61 is fixedly installed on the lower right side inside the box 2.

[0028] In this embodiment, specifically, the grab hook 67 is fixedly installed in the upper left corner inside the box 2.

[0029] In this embodiment, specifically, the rear sides of the two fixing plates 54 are respectively fixedly installed on the left side of the front end of the portal frame 1.

[0030] In this embodiment, specifically, the rear sides of the two U-shaped plates 55 are respectively fixedly installed on the right side of the front end of the portal frame 1.

[0031] In this embodiment, specifically, the water pump 63 is electrically connected via an external control device.

[0032] Working principle

[0033] In this utility model, when the manual disassembly frame structure 5 is required, the safety pin 56 is first removed from the right side of the support rod 52. The operator then manually pulls the hand ring 53 to remove the support rod 52 from the hollow support column 51. At this time, the operator removes the hollow support column 51 and the barrier net 57 together, making it easier for the operator to use quickly. If the barrier net 57 is not used for a long time, the barrier net 57 and other connecting parts are prone to rust. At this time, the rust inhibitor is poured into the feed hopper 62 and then sent into the tank 61. The external control device will be activated, and the rust inhibitor inside the tank 61 will be sucked in through the input end of the water pump 63. Then, it will be sprayed through the hose 64 and the nozzle 65. After spraying the entire barrier net 57, the service life of the barrier net 57 can be increased.

[0034] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution of this utility model, falls within the protection scope of this utility model.

Claims

1. A novel wellhead safety door device, characterized in that, The novel wellhead safety door device includes a gate-type frame (1), a box (2) is fixedly installed at the lower right end of the gate-type frame (1), a door (3) is connected to the right side of the box (2) by a hinge, a handle (4) is fixedly installed on the left side of the door (3), a manual disassembly frame structure (5) is installed at the middle of the front end of the gate-type frame (1), and an anti-corrosion spraying box device (6) is installed inside the door (3); the manual disassembly frame structure (5) includes two hollow pillars (51), a U-shaped plate (55) and a fixing plate (54), a support rod (52) is inserted into the two hollow pillars (51), and a hand-held ring (53) is fixedly installed on the left side of each of the two support rods (52), and the left side of each of the two support rods (52) is respectively connected to a hand-held ring (53). Inside the fixed plate (54), the two support rods (52) and the U-shaped plate (55) are connected by a safety pin (56), and the two hollow support columns (51) are respectively fixedly installed with a barrier net (57); the corrosion inhibitor spraying box device (6) includes a tank (61) and a water pump (63). The upper opening of the tank (61) is threaded with a feed hopper (62). The input end of the water pump (63) is connected to the opening on the lower left side of the tank (61). The output end of the water pump (63) is threaded with a hose (64). The upper part of the hose (64) is threaded with a nozzle (65). The outside of the nozzle (65) is sleeved on a belt (66). The belt (66) is placed inside the hook (67).

2. The novel wellhead safety door device as described in claim 1, characterized in that, The lower part of the water pump (63) is fixedly installed on the lower left side inside the housing (2).

3. The novel wellhead safety door device as described in claim 1, characterized in that, The lower part of the tank (61) is fixedly installed on the lower right side inside the box (2).

4. The novel wellhead safety door device as described in claim 1, characterized in that, The grab hook (67) is fixedly installed in the upper left corner of the box (2).

5. The novel wellhead safety door device as described in claim 1, characterized in that, The rear sides of the two fixing plates (54) are respectively fixedly installed on the left side of the front end of the portal frame (1).

6. The novel wellhead safety door device as described in claim 1, characterized in that, The rear sides of the two U-shaped plates (55) are respectively fixedly installed on the right side of the front end of the portal frame (1).