Petroleum pipeline connection protection device for petroleum machinery
By using a combination of protective shell and clamping mechanism at the oil pipeline connection, the corrosion problem caused by the exposure of the pipeline connection is solved, and the effect of preventing rust, holes and oil leaks is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGHAN KNAITE PETROLEUM EQUIPMENT MANUFACTURING CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-24
AI Technical Summary
Oil pipeline connections are exposed to the elements, causing flanges and other components to be corroded by rainwater over a long period of time, which can easily lead to rust and holes, increasing the probability of oil leaks.
The system employs a first and second protective shell in conjunction with a clamping and waterproofing mechanism. It uses C-shaped locking blocks and auxiliary handles to engage the oil pipeline connection, and uses a bidirectional threaded rod and internal threaded block to clamp and form a sealed space to prevent corrosion.
It effectively prevents corrosion at oil pipeline connections, reduces the probability of oil leaks, and improves the availability and practicality of the equipment.
Smart Images

Figure CN224162214U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil pipeline protection technology, and in particular to a protective device for oil machinery and oil pipeline connections. Background Technology
[0002] Chinese patent document CN220749274U discloses a protective device for connecting oil pipelines in petroleum machinery, relating to the field of oil drilling and production. It includes a base with several anchor bolts, and several mounting frames fixedly connected to the base. Each mounting frame has a lifting drive mechanism, which in turn has a lifting rotating shell mechanism. The lifting rotating shell mechanism has two clamping plate mechanisms arranged opposite to each other. This invention achieves connection and fixation between the entire device and the ground through the anchor bolts. The lifting drive mechanism allows for adjustment of the height of the lifting rotating shell mechanism to accommodate different oil pipeline placement angles. The clamping plate mechanisms can secure oil pipelines of different diameters. The mounting frames and the lifting rotating shell mechanism provide protection for the outer side of the oil pipeline.
[0003] When the aforementioned oil pipeline connection protection device is in use, the pipeline connection is always exposed to the outside, causing the flanges and other components at the connection to be corroded by rainwater and other liquids for a long time, making them more prone to rust and holes, thus increasing the probability of oil leakage at the pipeline connection. Utility Model Content
[0004] The purpose of this utility model is to provide a protective device for oil pipeline connections in petroleum machinery, which can solve the problem that when the above-mentioned oil pipeline connection protection devices are used, the connection of the pipeline is always exposed to the outside, causing the flanges and other components at the connection to be corroded by rainwater and other liquids for a long time, making them more prone to rust and holes, and increasing the probability of oil leakage at the pipeline connection.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective device for connecting oil pipelines in petroleum machinery, comprising a first protective shell, a waterproof mechanism, and a clamping mechanism. The waterproof mechanism is disposed on the top of the first protective shell and includes a second protective shell. The second protective shell is hingedly mounted on the top of the first protective shell. The clamping mechanism is disposed inside the first protective shell and includes a bidirectional threaded rod, an internal threaded block, and a polygonal knob. The bidirectional threaded rod is rotatably mounted on the inner walls of both sides of the first protective shell. One end of the bidirectional threaded rod extends to the outside of the first protective shell and is fixedly mounted with a polygonal knob. The outer wall of the bidirectional threaded rod is threadedly connected to the inner threads of two sets of internal threaded blocks, which are symmetrically arranged.
[0006] Preferably, the waterproof mechanism further includes grooved blocks, C-shaped locking blocks, and auxiliary handles. A set of symmetrical grooved blocks is fixedly installed on the outer walls of the first and second protective shells, respectively. The C-shaped locking blocks are respectively engaged with the two sets of grooved blocks. An auxiliary handle is fixedly installed on the front side of the C-shaped locking blocks to engage the connection of the oil pipeline between the first and second protective shells, preventing the flanges and other components at the connection from being corroded by rainwater and other liquids, minimizing the occurrence of rust and holes, reducing the probability of oil leakage at the pipeline connection, and making the operation simple and easy to use.
[0007] Preferably, the clamping mechanism further includes a strip groove, a movable plate, and a lower clamp. The inner wall of the first protective shell is provided with a strip groove. The outer walls of the two sets of internal threaded blocks are slidably connected to the inner wall of the strip groove. A movable plate is slidably installed on the top of the internal threaded blocks. A lower clamp is fixedly installed on the top of the movable plate. The two sets of pipes are squeezed towards the connection point to make the pipe connection tighter, prevent the pipe connection point from falling off, and improve the usability and practicality of the device.
[0008] Preferably, an upper clamp is fixedly installed on the top of the lower clamp.
[0009] Preferably, the first protective shell and the second protective shell each have a set of semi-circular openings on their sides, and the two sets of semi-circular openings are connected to each other.
[0010] Preferably, a sealing gasket is provided on the inner wall of the semi-circular opening.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] (1) The oil pipeline connection protection device of this petroleum machinery, through the combined use of the second protective shell, the grooved block, the C-shaped clamping block and the auxiliary handle, clamps the connection of the oil pipeline between the first protective shell and the second protective shell, preventing the flange and other components at the connection from being corroded by rainwater and other liquids, minimizing the occurrence of rust and holes, reducing the probability of oil leakage at the pipeline connection, and is simple and easy to operate.
[0013] (2) The oil pipeline connection protection device of this petroleum machinery uses the combination of strip groove, bidirectional threaded rod, internal threaded block, multi-sided knob, movable plate and lower clamp to squeeze the two sets of pipelines to the connection, making the pipeline connection tighter, preventing the pipeline connection from falling off, and improving the availability and practicality of the device. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a three-dimensional structural diagram of the first protective shell of this utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the second protective shell of this utility model;
[0018] Figure 4 This is a three-dimensional structural diagram of the C-shaped card plate of this utility model;
[0019] Figure 5 This is a bottom-view three-dimensional structural diagram of the internal threaded block of this utility model.
[0020] Reference numerals: 1. First protective shell; 2. Waterproof mechanism; 201. Second protective shell; 202. Groove block; 203. C-shaped locking block; 204. Auxiliary handle; 3. Clamping mechanism; 301. Strip groove; 302. Bidirectional threaded rod; 303. Internal threaded block; 304. Polygonal knob; 305. Movable plate; 306. Lower clamp; 4. Upper clamp; 5. Semi-circular opening. Detailed Implementation
[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0022] Please see Figure 1-5 This utility model provides a technical solution: a protective device for connecting oil pipelines in petroleum machinery, comprising a first protective shell 1, a waterproof mechanism 2, and a clamping mechanism 3. The waterproof mechanism 2 is disposed on the top of the first protective shell 1 and includes a second protective shell 201, which is hinged to the top of the first protective shell 1. The clamping mechanism 3 is disposed inside the first protective shell 1 and includes a bidirectional threaded rod 302, an internal threaded block 303, and a polygonal knob 304. The inner walls on both sides of the first protective shell 1 are rotatably mounted. A bidirectional threaded rod 302 is provided, one end of which extends to the outside of the first protective shell 1 and is fixedly mounted with a polygonal knob 304. The outer wall of the bidirectional threaded rod 302 is connected to the internal threads of two sets of internal threaded blocks 303, which are symmetrically arranged. An upper clamp 4 is fixedly mounted on the top of the lower clamp 306. A set of semi-circular openings 5 are respectively opened on both sides of the first protective shell 1 and the second protective shell 201, and the two sets of semi-circular openings 5 are connected to each other. A sealing gasket is provided on the inner wall of the semi-circular opening 5.
[0023] Secondly, the waterproof mechanism 2 also includes a grooved block 202, a C-shaped locking block 203, and an auxiliary handle 204. A set of symmetrical grooved blocks 202 are fixedly installed on the outer wall of the first protective shell 1 and the outer wall of the second protective shell 201. The C-shaped locking block 203 is connected to the two sets of grooved blocks 202 respectively. An auxiliary handle 204 is fixedly installed on the front side of the C-shaped locking block 203 to lock the connection of the oil pipeline between the first protective shell 1 and the second protective shell 201, preventing the flange and other components at the connection from being corroded by rainwater and other liquids, minimizing the occurrence of rust and holes, reducing the probability of oil leakage at the pipeline connection, and is simple and easy to operate.
[0024] Furthermore, the clamping mechanism 3 also includes a strip groove 301, a movable plate 305, and a lower clamp 306. The inner wall of the first protective shell 1 is provided with a strip groove 301. The outer walls of the two sets of internal threaded blocks 303 are slidably connected to the inner wall of the strip groove 301. The movable plate 305 is slidably installed on the top of the internal threaded block 303. The lower clamp 306 is fixedly installed on the top of the movable plate 305. The two sets of pipes are squeezed towards the connection point, making the pipe connection tighter and preventing the pipe connection point from falling off, thus improving the usability and practicality of the device.
[0025] Working principle: When using this device, the first protective shell 1 is placed below the oil pipeline connection, so that the semi-circular opening 5 is clamped on the outer wall of the pipeline. Then, the upper clamp 4 is fixed on the lower clamp 306, so that the lower clamp 306 and the upper clamp 4 clamp the pipeline on both sides of the connection. By rotating the bidirectional threaded rod 302 through the polygonal knob 304, under the limit of the strip groove 301, the internal threaded block 303 is moved, thereby generating a combined force on the two sets of pipelines. Then, the second protective shell 201 is flipped over and placed on the first protective shell 1. By pushing the C-shaped locking block 203 through the auxiliary handle 204, the C-shaped locking block 203 is simultaneously locked in the grooves of the two sets of grooved blocks 202, limiting the grooved blocks 202, and merging the first protective shell 1 and the second protective shell 201 together. The sealing gasket on the semi-circular opening 5 will adhere to the outer wall of the pipeline, forming a sealed space, so that the pipeline connection is located in this sealed space and avoids rainwater erosion.
[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A protective device for oil pipeline connections in petroleum machinery, characterized in that, include: First protective shell (1); A waterproof mechanism (2) is provided on the top of the first protective shell (1). The waterproof mechanism (2) includes a second protective shell (201). The second protective shell (201) is hinged to the top of the first protective shell (1). The clamping mechanism (3) is located inside the first protective shell (1). The clamping mechanism (3) includes a bidirectional threaded rod (302), an internal threaded block (303), and a multi-sided knob (304). The bidirectional threaded rod (302) is rotatably installed on the inner walls of both sides of the first protective shell (1). One end of the bidirectional threaded rod (302) extends to the outside of the first protective shell (1) and is fixedly installed with a multi-sided knob (304). The outer wall of the bidirectional threaded rod (302) is connected to the internal threads of two sets of internal threaded blocks (303). The two sets of internal threaded blocks (303) are symmetrically arranged. The waterproof mechanism (2) also includes a grooved block (202), a C-shaped locking block (203) and an auxiliary handle (204). A set of vertically symmetrical grooved blocks (202) are fixedly installed on the outer wall of the first protective shell (1) and the outer wall of the second protective shell (201). The C-shaped locking block (203) is connected to the two sets of grooved blocks (202) respectively. An auxiliary handle (204) is fixedly installed on the front side of the C-shaped locking block (203). The clamping mechanism (3) also includes a strip groove (301), a movable plate (305) and a lower clamp (306). The inner wall of the first protective shell (1) is provided with a strip groove (301). The outer walls of the two sets of internal threaded blocks (303) are slidably connected to the inner wall of the strip groove (301). The movable plate (305) is slidably installed on the top of the internal threaded block (303), and the lower clamp (306) is fixedly installed on the top of the movable plate (305). The top of the lower clamp (306) is fixedly installed with an upper clamp (4). The first protective shell (1) and the second protective shell (201) are provided with a set of semi-circular openings (5) on both sides, and the two sets of semi-circular openings (5) are connected to each other; the inner wall of the semi-circular opening (5) is provided with a sealing gasket.
Citation Information
Patent Citations
Petroleum pipeline connection protection device for petroleum machinery
CN220749274U