Crane pipe with protection mechanism

Abstract

The utility model relates to the technical field of conveying fuel oil, lubricating oil or mixed fuel oil and lubricating oil, and discloses a crane pipe with a protection mechanism, which comprises a first crane pipe and a second crane pipe, the outer surface of the first crane pipe is fixedly sleeved with a first flange, and the outer surface of the second crane pipe is fixedly sleeved with a second flange. Four bolt grooves are formed in the front side of the first flange, four nut grooves are formed in the rear side of the second flange, bolts are arranged in the four bolt grooves, nuts are arranged in the four nut grooves, the four nuts are in threaded connection with the four bolts, and dismounting grooves are formed in the front sides of the four bolts. The outer surface of the first crane pipe and the outer surface of the second crane pipe are sleeved with the upper protective shell and the lower protective shell, the upper protective shell and the lower protective shell are provided with the clamping mechanisms, in this way, the flange connecting portion of the crane pipe can be protected, and then rainwater, snow water and the like are prevented from entering the crane pipe from the flange connecting portion; and the quality reduction of the extracted petroleum is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying fuel oil, lubricating oil or a mixture of fuel oil and lubricating oil, and particularly relates to a loading arm with a protection mechanism. Background Technique

[0002] A loading arm, a telescopic and movable pipe, is mostly used for liquid loading and unloading at oil and chemical terminals. The medium in the pipe is such as oil, water, etc. The loading arm is a special equipment in the fluid loading and unloading process of the petrochemical industry. It is connected to a rigid pipe and an elbow through a rotary joint to realize the movable equipment for transmitting liquid media between railway tank cars, motor tank cars and the storage and transportation pipeline on the trestle, so as to replace the old hose connection, and has the characteristics of high safety, flexibility and long service life.

[0003] Most of the connection parts of the loading arm are connected by means of flange connection. During the use of the loading arm, problems are more likely to occur at the flange connection part. The relatively fast flow rate of the petroleum inside the device will generate vibration. During the use process, if it is rainy or snowy weather, rainwater or snow water will fall on the flange connection position, and then enter the inside of the loading arm through the gaps generated by the vibration, thereby causing the quality of the extracted petroleum to decrease. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a loading arm with a protection mechanism, which has the function of being able to protect the flange connection part of the loading arm, thereby avoiding rainwater, snow water, etc. from entering the inside of the loading arm from the flange connection part, and avoiding the decline in the quality of the extracted petroleum.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: A loading arm with a protection mechanism includes a first loading arm and a second loading arm. The first loading arm is a straight pipe, and the second loading arm is a bent pipe. A first flange is fixedly sleeved on the outer surface of the first loading arm, and a second flange is fixedly sleeved on the outer surface of the second loading arm;

[0008] An upper protection shell and a lower protection shell are sleeved on the outer surfaces of the first loading arm and the second loading arm, and the upper protection shell and the lower protection shell are arranged up and down;

[0009] The first flange and the second flange are arranged inside the upper protection shell and the lower protection shell, and the upper protection shell and the lower protection shell are rotatably connected through a rotating shaft;

[0010] Sealing gaskets are arranged at the connection parts between the upper protection shell and the lower protection shell and the first loading arm and the second loading arm. A clamping mechanism is arranged on the upper protection shell and the lower protection shell, and the upper protection shell and the lower protection shell can be quickly disassembled and installed through the clamping mechanism;

[0011] The clamping mechanism includes an upper fixing block, a lower fixing block, a sliding groove, a sliding block, a first spring, a clamping block groove, a clamping block, a second spring, a connecting groove, a clamping groove, a top block, a control groove and a control rod.

[0012] Preferably, four bolt grooves are formed on the front side of the first flange, and the four bolt grooves are arranged in an annular array. Four nut grooves are formed on the rear side of the second flange;

[0013] The four nut grooves are also arranged in an annular array. Bolts are arranged inside the four bolt grooves, and the rear ends of the four bolts extend into the four nut grooves;

[0014] Nuts are arranged inside the four nut grooves, the four nuts are threadedly connected with the four bolts, and disassembly and assembly grooves are formed on the front sides of the four bolts.

[0015] Preferably, the upper fixing block is fixedly connected to the left side of the upper protective shell, and the lower fixing block is fixedly connected to the left side of the lower protective shell;

[0016] The sliding groove is formed on the lower side of the upper fixing block, the sliding block is slidably connected inside the sliding groove, and the first spring is fixedly connected to the upper side of the sliding block;

[0017] The upper end of the first spring is fixedly connected to the top wall of the sliding groove, and the clamping block groove is formed on the front side of the sliding block.

[0018] Preferably, the clamping block is slidably connected inside the clamping block groove, the shape of the clamping block is a trapezoidal block, and the second spring is fixedly connected to the rear side of the clamping block;

[0019] The rear end of the second spring is fixedly connected to the rear wall of the clamping block groove, and clamping block grooves are also formed on the rear side of the sliding block. The connection structures of the front and rear two clamping block grooves are the same and are symmetrically arranged.

[0020] Preferably, the connecting groove is formed on the lower side of the lower fixing block, and the connecting groove is adapted to the sliding block;

[0021] The distance from the left wall to the right wall of the connecting groove is greater than the left - right distance of the sliding block. The clamping groove is formed on the front wall of the connecting groove, and the clamping groove is adapted to the front clamping block;

[0022] The top block is slidably connected inside the clamping groove, and the rear side of the top block is in contact with the clamping block.

[0023] Preferably, the control groove is formed on the bottom wall of the clamping groove, and the bottom wall of the control groove extends out of the lower side of the lower fixing block;

[0024] The control rod is fixedly connected to the lower side of the top block, the lower side of the control rod extends out of the lower fixing block through the control groove, and a clamping groove is also formed on the rear wall of the connecting groove;

[0025] The connection structures of the front and rear clamping grooves are the same and are symmetrically arranged. The rear clamping groove is adapted to the rear clamping block.

[0026] (III) Beneficial Effects

[0027] Compared with the prior art, the present utility model provides a swivel pipe with a protection mechanism, having the following beneficial effects:

[0028] (1). For the swivel pipe with a protection mechanism, the upper protection shell and the lower protection shell can limit and fix the first flange and the second flange, thereby reducing the vibration between the first flange and the second flange. At the same time, they also block rainwater and snow, preventing rainwater and snow from falling on the second swivel pipe and the second flange. When it is necessary to disassemble the upper protection shell and the lower protection shell, the staff pushes the front control rod backward. After transmission, the clamping state between the clamping block and the clamping groove is released. At the same time, the rear control rod is pushed forward. According to the above, the clamping states of the two clamping blocks and the two clamping grooves will be released. Then, by pulling the upper protection shell and the lower protection shell, they can be opened and then removed. During installation, the upper protection shell and the lower protection shell can be installed and fixed to the first flange and the second flange according to the above method. In this way, the flange connection part of the swivel pipe can be protected, thereby preventing rainwater, snow, etc. from entering the interior of the swivel pipe from the flange connection part and avoiding the decline in the quality of the extracted petroleum.

[0029] (2). For the swivel pipe with a protection mechanism, by providing four bolt grooves on the front side of the first flange, the four bolt grooves are arranged in a circular array, four nut grooves are provided on the rear side of the second flange, the four nut grooves are also arranged in a circular array, bolts are arranged inside the four bolt grooves, the rear ends of the four bolts extend into the four nut grooves, nuts are arranged inside the four nut grooves, the four nuts are threadedly connected with the four bolts, and disassembly grooves are provided on the front sides of the four bolts, the bolts and nuts for fixing the first flange and the second flange do not extend out of the front side of the first flange and the rear side of the second flange, thereby avoiding the influence of the bolts on the installation of the upper protection shell and the lower protection shell.

[0030] (3). For the swivel pipe with a protection mechanism, by making the distance from the left wall to the right wall of the connection groove greater than the left - right distance of the sliding block, the situation where the sliding block and the connection groove are not adaptable is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of a partial connection structure of a swivel pipe with a protection mechanism according to the present utility model;

[0032] Figure 2 It is a schematic diagram of the connection structure of the first flange and the second flange according to the present utility model;

[0033] Figure 3 is Figure 1 The enlarged schematic diagram of position A of

[0034] Figure 4 The schematic diagram of the connection structure between the upper protective shell and the lower protective shell of the present utility model;

[0035] Figure 5 is Figure 4 The enlarged schematic diagram of position B of

[0036] In the figure: 1. The first loading arm; 2. The first flange; 3. The second loading arm; 4. The second flange; 5. The bolt groove; 6. The nut groove; 7. The bolt; 8. The nut; 9. The disassembly and assembly groove; 10. The upper protective shell; 11. The lower protective shell; 12. The upper fixing block; 13. The lower fixing block; 14. The sliding groove; 15. The sliding block; 16. The first spring; 17. The block groove; 18. The block; 19. The second spring; 20. The connection groove; 21. The clamping groove; 22. The top block; 23. The control groove; 24. The control rod. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0038] Please refer to Figures 1 to 5, the present utility model provides a new technical solution: a swivel pipe with a protection mechanism, including a first swivel pipe 1 and a second swivel pipe 3. The first swivel pipe 1 is a straight pipe, and the second swivel pipe 3 is a bent pipe. A first flange 2 is fixedly sleeved on the outer surface of the first swivel pipe 1, and a second flange 4 is fixedly sleeved on the outer surface of the second swivel pipe 3. Four bolt grooves 5 are opened on the front side of the first flange 2, and the four bolt grooves 5 are arranged in a circular array. Four nut grooves 6 are opened on the rear side of the second flange 4, and the four nut grooves 6 are also arranged in a circular array. Bolts 7 are arranged inside the four bolt grooves 5, and the rear ends of the four bolts 7 extend into the four nut grooves 6. Nuts 8 are arranged inside the four nut grooves 6, and the four nuts 8 are threadedly connected to the four bolts 7. Disassembly and assembly grooves 9 are opened on the front sides of the four bolts 7. An upper protective shell 10 and a lower protective shell 11 are sleeved on the outer surfaces of the first swivel pipe 1 and the second swivel pipe 3. The upper protective shell 10 and the lower protective shell 11 are arranged up and down. The first flange 2 and the second flange 4 are arranged inside the upper protective shell 10 and the lower protective shell 11. The upper protective shell 10 and the lower protective shell 11 are rotatably connected through a rotating shaft. Sealing gaskets are arranged at the connection parts between the upper protective shell 10 and the lower protective shell 11 and the first swivel pipe 1 and the second swivel pipe 3. A clamping mechanism is arranged on the upper protective shell 10 and the lower protective shell 11. Through the clamping mechanism, the upper protective shell 10 and the lower protective shell 11 can be quickly disassembled and installed. The clamping mechanism includes an upper fixing block 12, a lower fixing block 13, a sliding groove 14, a sliding block 15, a first spring 16, a block groove 17, a block 18, a second spring 19, a connection groove 20, a clamping groove 21, a top block 22, a control groove 23, and a control rod 24.

[0039] Further, the upper fixing block 12 is fixedly connected to the left side of the upper protective shell 10, the lower fixing block 13 is fixedly connected to the left side of the lower protective shell 11, the sliding groove 14 is opened on the lower side of the upper fixing block 12, the sliding block 15 is slidably connected to the inside of the sliding groove 14, the first spring 16 is fixedly connected to the upper side of the sliding block 15, and the upper end of the first spring 16 is fixedly connected to the top wall of the sliding groove 14. The clamping block groove 17 is opened on the front side of the sliding block 15, the clamping block 18 is slidably connected to the inside of the clamping block groove 17. The shape of the clamping block 18 is a trapezoidal block. The second spring 19 is fixedly connected to the rear side of the clamping block 18, and the rear end of the second spring 19 is fixedly connected to the rear wall of the clamping block groove 17. The rear side of the sliding block 15 is also provided with a clamping block groove 17. The connection structures of the front and rear two clamping block grooves 17 are the same and are symmetrically arranged. The connection groove 20 is opened on the lower side of the lower fixing block 13. The connection groove 20 is adapted to the sliding block 15. The distance from the left wall to the right wall of the connection groove 20 is greater than the left and right distance of the sliding block 15, thereby avoiding the situation where the sliding block 15 and the connection groove 20 cannot be adapted. The clamping groove 21 is opened on the front wall of the connection groove 20. The clamping groove 21 is adapted to the front clamping block 18. The top block 22 is slidably connected to the inside of the clamping groove 21. The rear side of the top block 22 is in contact with the clamping block 18. The control groove 23 is opened on the bottom wall of the clamping groove 21. The bottom wall of the control groove 23 extends out of the lower side of the lower fixing block 13. The control rod 24 is fixedly connected to the lower side of the top block 22. The lower side of the control rod 24 extends out of the lower fixing block 13 through the control groove 23. The rear wall of the connection groove 20 is also provided with a clamping groove 21. The connection structures of the front and rear two clamping grooves 21 are the same and are symmetrically arranged. The rear clamping groove 21 is adapted to the rear clamping block 18.

[0040] Furthermore, when starting to work, the upper protective shell 10 and the lower protective shell 11 can limit and fix the first flange 2 and the second flange 4, thereby reducing the vibration between the first flange 2 and the second flange 4. At the same time, they also block rainwater and snow, preventing rainwater and snow from falling on the second swing pipe 3 and the second flange 4. When it is necessary to disassemble the upper protective shell 10 and the lower protective shell 11, the staff push the front control rod 24 backward, then the control rod 24 drives the top block 22 to move backward, and then the top block 22 pushes the clamping block 18 to move backward. Then the clamping block 18 moves backward into the clamping block groove 17. At this time, the second spring 19 starts to be compressed, and the clamping state between the clamping block 18 and the clamping groove 21 is released. At the same time, push the rear control rod 24 forward. According to the above, the clamping states of the two clamping blocks 18 and the two clamping grooves 21 will be released. After that, pulling the upper protective shell 10 and the lower protective shell 11 can open them, and then they can be removed. During installation, the upper protective shell 10 and the lower protective shell 11 can be installed and fixed to the first flange 2 and the second flange 4 according to the above method. In this way, the flange connection part of the swing pipe can be protected, thereby preventing rainwater, snow, etc. from entering the swing pipe through the flange connection part and avoiding the decline in the quality of the extracted petroleum.

[0041] Working principle: When starting to work, the upper protective shell 10 and the lower protective shell 11 can limit and fix the first flange 2 and the second flange 4, thereby reducing the vibration between the first flange 2 and the second flange 4. At the same time, they also block rainwater and snow, preventing rainwater and snow from falling on the second swing pipe 3 and the second flange 4. When it is necessary to disassemble the upper protective shell 10 and the lower protective shell 11, the staff push the front control rod 24 backward, then the control rod 24 drives the top block 22 to move backward, and then the top block 22 pushes the clamping block 18 to move backward. Then the clamping block 18 moves backward into the clamping block groove 17. At this time, the second spring 19 starts to be compressed, and the clamping state between the clamping block 18 and the clamping groove 21 is released. At the same time, push the rear control rod 24 forward. According to the above, the clamping states of the two clamping blocks 18 and the two clamping grooves 21 will be released. After that, pulling the upper protective shell 10 and the lower protective shell 11 can open them, and then they can be removed. During installation, the upper protective shell 10 and the lower protective shell 11 can be installed and fixed to the first flange 2 and the second flange 4 according to the above method.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crane pipe with a protective mechanism, comprising a first crane pipe (1) and a second crane pipe (3), wherein the first crane pipe (1) is a straight pipe and the second crane pipe (3) is a curved pipe; a first flange (2) is fixedly sleeved on the outer surface of the first crane pipe (1), and a second flange (4) is fixedly sleeved on the outer surface of the second crane pipe (3); The outer surfaces of the first crane tube (1) and the second crane tube (3) are sheathed with an upper protective shell (10) and a lower protective shell (11), and the upper protective shell (10) and the lower protective shell (11) are arranged up and down; The first flange (2) and the second flange (4) are arranged inside the upper protective shell (10) and the lower protective shell (11), and the upper protective shell (10) and the lower protective shell (11) are rotatably connected via a rotating shaft; Sealing gaskets are provided at the connections between the upper protective shell (10), the lower protective shell (11), the first crane tube (1), and the second crane tube (3), and are characterized in that: The upper protective shell (10) and the lower protective shell (11) are provided with a clamping mechanism, and the upper protective shell (10) and the lower protective shell (11) can be quickly disassembled and assembled through the clamping mechanism; The clamping mechanism comprises an upper fixed block (12), a lower fixed block (13), a sliding groove (14), a sliding block (15), a first spring (16), a clamping block groove (17), a clamping block (18), a second spring (19), a connecting groove (20), a clamping groove (21), a top block (22), a control groove (23) and a control rod (24).

2. The crane pipe with a protective mechanism according to claim 1, characterized in that: The front side of the first flange (2) is provided with four bolt slots (5), the four bolt slots (5) are arranged in a ring array, and the rear side of the second flange (4) is provided with four nut slots (6); The four nut slots (6) are also arranged in a ring array, and bolts (7) are arranged inside the four bolt slots (5), and the rear ends of the four bolts (7) extend into the interior of the four nut slots (6); Nuts (8) are provided inside the four nut slots (6), and the four nuts (8) are threadedly connected to the four bolts (7). The front sides of the four bolts (7) are each provided with a disassembly slot (9).

3. The swivel arm with a protection mechanism according to claim 1, wherein: The upper fixing block (12) is fixedly connected to the left side of the upper protective shell (10), and the lower fixing block (13) is fixedly connected to the left side of the lower protective shell (11); The sliding groove (14) is opened on the lower side of the upper fixed block (12), the sliding block (15) is slidably connected to the inside of the sliding groove (14), and the first spring (16) is fixedly connected to the upper side of the sliding block (15); The upper end of the first spring (16) is fixedly connected to the top wall of the sliding groove (14), and the clamping block groove (17) is opened on the front side of the sliding block (15).

4. The swivel arm with a protection mechanism according to claim 1, characterized in that: The clamping block (18) is slidably connected to the inside of the clamping block groove (17), the clamping block (18) is in the shape of a trapezoidal block, and the second spring (19) is fixedly connected to the rear side of the clamping block (18); The rear end of the second spring (19) is fixedly connected to the rear wall of the block groove (17). The rear side of the sliding block (15) is also provided with a block groove (17). The connection structures of the front and rear block grooves (17) are the same and are symmetrically arranged.

5. The swivel arm with a protection mechanism according to claim 1, wherein: The connecting groove (20) is provided on the lower side of the lower fixed block (13), and the connecting groove (20) is adapted to the sliding block (15); The distance from the left wall to the right wall of the connecting groove (20) is greater than the left - right distance of the sliding block (15). The clamping groove (21) is formed on the front wall of the connecting groove (20), and the clamping groove (21) is adapted to the front - side clamping block (18). The top block (22) is slidably connected inside the clamping groove (21), and the rear side of the top block (22) is in contact with the clamping block (18).

6. The swivel arm with a protection mechanism according to claim 1, wherein: The control groove (23) is formed on the bottom wall of the clamping groove (21), and the bottom wall of the control groove (23) extends below the lower fixing block (13). The control rod (24) is fixedly connected to the lower side of the top block (22). The lower side of the control rod (24) extends out of the lower fixing block (13) through the control groove (23). Similarly, a clamping groove (21) is formed on the rear wall of the connecting groove (20). The connection structures of the front and rear clamping grooves (21) are the same and are symmetrically arranged. The rear - side clamping groove (21) is adapted to the rear - side clamping block (18).

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