Liquefied natural gas tank car unloading device

Abstract

The utility model relates to the technical field of natural gas, and provides a liquefied natural gas tank car unloading device which comprises a crane pipe loading and unloading arm, a base is arranged below the crane pipe loading and unloading arm, the crane pipe loading and unloading arm is fixedly installed on the base, four universal wheels are arranged below the base, and four damping assemblies are arranged at the bottom of the base. The four damping assemblies are arranged on the base, the connecting assemblies are arranged on the outer sides of the four damping assemblies, the universal wheels are fixedly installed on the damping assemblies, the two positioning assemblies are arranged on the base, and the two positioning assemblies are oppositely arranged, so that the loading arm of the crane pipe is convenient to move through the base, the universal wheels, the damping assemblies, the connecting assemblies and the second springs; meanwhile, workers are not prone to fatigue, and the situation that shaking force generated in the moving process of the loading arm of the crane pipe influences mechanisms such as the loading arm of the crane pipe can be avoided.

Description

Technical Field

[0001] The utility model belongs to the field of natural gas technology and specifically relates to a liquefied natural gas tank truck unloading device. Background Art

[0002] The loading and unloading arm of the liquefied natural gas tank truck is connected in series with a pipeline by a swivel joint with flexible rotation and good sealing performance. It is used for liquid medium transmission operations between the tank truck and the trestle storage and transportation pipeline. The loading and unloading arm of the liquefied natural gas tank truck adopts a double-roller swivel joint and a sealing ring with an elastic clip to ensure that the loading and unloading medium does not leak.

[0003] Current liquefied natural gas tanker unloading devices, when they need to be moved, mostly require manual handling and moving, which is not only time-consuming and labor-intensive, but the shaking during transportation can easily damage the mechanism of the unloading device. At the same time, workers are also prone to fatigue, affecting work efficiency. Utility Model Content

[0004] The utility model proposes a liquefied natural gas tank truck unloading device, which solves the problem in the related art that when moving is needed, most of the time, manual handling and moving are required, which is not only time-consuming and labor-intensive, but also the shaking during transportation can easily damage the mechanism of the unloading device, and the workers are also easily fatigued, affecting work efficiency.

[0005] The technical solution of the utility model is as follows: a liquefied natural gas tank truck unloading device, comprising a crane pipe loading and unloading arm, a base is provided below the crane pipe loading and unloading arm, and the crane pipe loading and unloading arm is fixedly installed on the base;

[0006] Four universal wheels are arranged below the base, four shock absorbing components are arranged at the bottom of the base, connecting components are arranged on the outer sides of the four shock absorbing components, and the universal wheels are fixedly mounted on the shock absorbing components;

[0007] Two positioning components are arranged on the base, and the two positioning components are arranged opposite to each other.

[0008] Preferably, the positioning assembly includes a screw rod that is arranged through the base, and the screw rod is threadedly connected to the base, the bottom of the screw rod is rotatably connected to a support column, a limiting rod is arranged through the base, and the limiting rod is movably connected to the base, and the bottom of the limiting rod is connected to the support column.

[0009] Preferably, plug-in slots are provided on both sides of the support column, blocking shells are plugged into the two plug-in slots, third springs are provided in the two blocking shells, and the third springs are located in the plug-in slots and the blocking shells.

[0010] Preferably, two strip grooves are provided on the top of the support column, and T-shaped plates are inserted into the two strip grooves.

[0011] Preferably, the shock absorbing assembly includes a N-shaped shell fixedly mounted on the bottom of the base, an N-shaped shell is arranged below the N-shaped shell, a damper is fixedly mounted on the inner bottom wall of the N-shaped shell, and the top of the damper is connected to the N-shaped shell, a first spring is arranged on the outer side wall of the damper, and the first spring is located between the N-shaped shell and the inner side of the N-shaped shell, and the universal wheel is fixedly mounted on the bottom of the N-shaped shell.

[0012] Preferably, the connecting assembly includes a connecting shell sleeved on the N-shaped shell and the N-shaped shell, positioning rods are fixedly installed in the rectangular frames on both sides of the connecting shell, square blocks are arranged on the outer sides of the two positioning rods, two first U-shaped frames are fixedly installed on the N-shaped shell, a first connecting rod is fixedly installed on the two first U-shaped frames, two first strip plates are sleeved on the outer side of the first connecting rod, two second U-shaped frames are fixedly installed on the N-shaped shell, two second connecting rods are fixedly installed on the two second U-shaped frames, two second strip plates are sleeved on the outer side of the second connecting rod, a third connecting rod is penetrated through the overlapping ends of the first strip plate and the second strip plate, and the third connecting rod is fixedly installed on the square blocks.

[0013] Preferably, two second springs are arranged on the outer side of the positioning rod, and the two second springs are located on both sides of the square block.

[0014] The working principle and beneficial effects of the utility model are:

[0015] 1. By setting the base, universal wheel, shock absorbing assembly, connecting assembly and second spring, the crane pipe loading and unloading arm is convenient to move, saving time and effort, and making workers less tired. It can also prevent the vibration force generated by the crane pipe loading and unloading arm during the movement from affecting the crane pipe loading and unloading arm and other mechanisms.

[0016] 2. By providing the positioning assembly, the second spring, the plug-in slot, the blocking shell and the third spring, the base can be positioned when it is not moving, thereby ensuring the stability of the base when it is not moving, thereby preventing the crane pipe loading and unloading arm and the base from being easily displaced due to accidents during use, thereby avoiding affecting the use process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0019] Figure 2 This is a schematic three-dimensional structure diagram of the base proposed by the present utility model;

[0020] Figure 3 This is a schematic three-dimensional structure diagram of the shock absorption component proposed by the present utility model;

[0021] Figure 4 This is a schematic three-dimensional structure diagram of the connection component proposed by the present utility model;

[0022] Figure 5 This is a schematic sectional three-dimensional structure diagram of the support column proposed by the present utility model.

[0023] In the figure: 1, loading and unloading arm of the articulated pipe; 2, base; 3, universal wheel;

[0024] 4, shock absorption component; 41, T-shaped shell; 42, L-shaped shell; 43, damper; 44, first spring;

[0025] 5, connection component; 51, connection housing; 52, positioning rod; 53, square block; 54, first U-shaped frame; 55, first connecting rod; 56, first strip-shaped plate; 57, third connecting rod;

[0026] 6, positioning component; 61, screw; 62, support column; 63, limiting rod;

[0027] 7, second spring; 8, insertion slot; 9, blocking shell; 10, third spring; 11, T-shaped plate. Specific embodiments

[0028] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0029] Embodiment 1

[0030] Please refer to Figure 1 - Figure 5 , a liquefied natural gas tanker unloading device, including a loading and unloading arm 1 of the articulated pipe. A base 2 is arranged below the loading and unloading arm 1 of the articulated pipe, and the loading and unloading arm 1 of the articulated pipe is fixedly installed on the base 2;

[0031] Four universal wheels 3 are arranged below the base 2, four shock absorption components 4 are arranged at the bottom of the base 2, connection components 5 are arranged on the outer sides of the four shock absorption components 4, and the universal wheels 3 are fixedly installed on the shock absorption components 4.

[0032] A liquefied natural gas tanker unloading device provided by the utility model, when in use, by manually pushing the loading and unloading arm 1 or the base 2 of the crane pipe, so that under the action of the universal wheels 3, it is convenient to move, thus saving time and effort, and making it not easy for workers to get tired. During the movement, through the shock absorption assembly 4, it is possible to avoid the vibration force generated during the movement of the loading and unloading arm 1 of the crane pipe from affecting mechanisms such as the loading and unloading arm 1 of the crane pipe, and thus it is not easy for parts of mechanisms such as the loading and unloading arm 1 of the crane pipe to become loose or damaged.

[0033] Further, the shock absorption assembly 4 includes a T-shaped shell 41 fixedly installed at the bottom of the base 2. Below the T-shaped shell 41, there is an L-shaped shell 42. A damper 43 is fixedly installed on the inner bottom wall of the L-shaped shell 42, and the top of the damper 43 is connected to the T-shaped shell 41. A first spring 44 is arranged on the outer side wall of the damper 43, and the first spring 44 is located inside the T-shaped shell 41 and the L-shaped shell 42. The universal wheels 3 are fixedly installed at the bottom of the L-shaped shell 42.

[0034] Specifically, when vibration occurs, the T-shaped shell 41 or the L-shaped shell 42 is stressed and presses the first spring 44, then the first spring 44 deforms, and then it is buffered by the first spring 44, so as to avoid the vibration force generated during the movement of the loading and unloading arm 1 of the crane pipe from affecting mechanisms such as the loading and unloading arm 1 of the crane pipe.

[0035] Further, the connection assembly 5 includes a connection outer shell 51 sleeved on the T-shaped shell 41 and the L-shaped shell 42. Positioning rods 52 are fixedly installed in the rectangular frames on both sides of the connection outer shell 51. Square blocks 53 are arranged on the outer sides of the two positioning rods 52. Two first U-shaped frames 54 are fixedly installed on the L-shaped shell 42. First connecting rods 55 are fixedly installed on the two first U-shaped frames 54. Two first strip-shaped plates 56 are sleeved on the outer sides of the first connecting rods 55. Two second U-shaped frames are fixedly installed on the T-shaped shell 41. Two second connecting rods are fixedly installed on the two second U-shaped frames. Two second strip-shaped plates are sleeved on the outer sides of the second connecting rods. The overlapping ends of the first strip-shaped plate 56 and the second strip-shaped plate are provided with a third connecting rod 57 through which, and the third connecting rod 57 is fixedly installed on the square block 53.

[0036] Specifically, through the connection outer shell 51, the positioning rods 52, the square blocks 53, the first U-shaped frames 54, the first connecting rods 55, the first strip-shaped plates 56, the third connecting rod 57, the second U-shaped frames, the second connecting rods and the second strip-shaped plates, the connection effect and stability between the T-shaped shell 41 and the L-shaped shell 42 can be improved.

[0037] Further, two second springs 7 are arranged on the outer side of the positioning rod 52, and the two second springs 7 are located on both sides of the square block 53.

[0038] Specifically, when the T-shaped shell 41 or the L-shaped shell 42 is stressed and presses the first spring 44, the L-shaped shell 42 or the T-shaped shell 41 drives the first strip plate 56 and the second strip plate through the first U-shaped frame 54, the first connecting rod 55, or the second U-shaped frame and the second connecting rod, so that the third connecting rod 57 is used to push the square block 53 on the positioning rod 52 to move and press the second spring 7, and then the second spring 7 buffers the square block 53, thereby improving the buffer and shock absorption effect of the shock absorption assembly 4.

[0039] Embodiment 2

[0040] Based on Embodiment 1, this embodiment includes: two positioning components 6 are arranged on the base 2, and the two positioning components 6 are oppositely arranged. The positioning component 6 includes a screw rod 61 penetrating through the base 2, and the screw rod 61 is threadedly connected to the base 2. The bottom of the screw rod 61 is rotatably connected to a support column 62. A limiting rod 63 penetrates through the base 2, and the limiting rod 63 is movably inserted into the base 2. The bottom of the limiting rod 63 is connected to the support column 62.

[0041] The technical solution provided by this embodiment is: by manually rotating the screw rod 61 threadedly connected to the base 2, it can stably drive the support column 62 rotatably connected to its bottom to descend and contact the ground under the cooperation of the limiting rod 63 and the base 2, thereby positioning the base 2 when it is not moving, ensuring the stability of the base 2 when it is not moving, and avoiding the displacement phenomenon that is likely to occur accidentally when the loading and unloading arm 1 of the articulated pipe and the base 2 are in use, preventing the use process of the loading and unloading arm 1 of the articulated pipe from being affected.

[0042] Further, insertion slots 8 are opened on both sides of the support column 62. Blocking shells 9 are inserted into the two insertion slots 8. Third springs 10 are arranged in the two blocking shells 9, and the third springs 10 are located in the insertion slots 8 and the blocking shells 9. Two strip-shaped slots are opened at the top of the support column 62, and T-shaped plates 11 are inserted into the two strip-shaped slots.

[0043] Specifically, after the support column 62 contacts the ground, manually pull up the T-shaped plate 11 inserted in the strip-shaped slot and make the bottom of the T-shaped plate 11 away from the blocking shell 9. Then, due to the lack of blocking by the T-shaped plate 11, the contracted third spring 10 can expand, and the expanded third spring 10 can drive the blocking shell 9 to extend out of the insertion slot 8, so that one end of the blocking shell 9 can contact and block the roller on the万向轮3 (it seems there is a mistake here, assuming it should be a normal wheel name), which is beneficial to improving the support and positioning effect of the positioning component 6 and the stability performance of the base 2.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquefied natural gas tank truck unloading device, comprising a crane loading and unloading arm (1), characterized in that: A base (2) is provided below the crane pipe loading and unloading arm (1), and the crane pipe loading and unloading arm (1) is fixedly mounted on the base (2); Four universal wheels (3) are arranged below the base (2), four shock absorbing components (4) are arranged at the bottom of the base (2), connecting components (5) are arranged on the outer sides of the four shock absorbing components (4), and the universal wheels (3) are fixedly mounted on the shock absorbing components (4); Two positioning components (6) are arranged on the base (2), and the two positioning components (6) are arranged opposite to each other.

2. A liquefied natural gas tank truck unloading device according to claim 1, characterized in that: The positioning assembly (6) comprises a screw rod (61) which is arranged through the base (2), and the screw rod (61) is threadedly connected to the base (2); the bottom of the screw rod (61) is rotatably connected to a support column (62); a limiting rod (63) is arranged through the base (2), and the limiting rod (63) is movably plugged into the base (2); the bottom of the limiting rod (63) is connected to the support column (62).

3. The liquefied natural gas tank truck unloading device according to claim 2, characterized in that: Both sides of the support column (62) are provided with plug-in slots (8), and blocking shells (9) are inserted into the two plug-in slots (8). The two blocking shells (9) are provided with third springs (10), and the third springs (10) are located in the plug-in slots (8) and the blocking shells (9).

4. The liquefied natural gas tank truck unloading device according to claim 3, characterized in that: The top of the support column (62) is provided with two strip-shaped grooves, and T-shaped plates (11) are inserted into the two strip-shaped grooves.

5. The liquefied natural gas tank truck unloading device according to claim 1, characterized in that: The shock absorbing assembly (4) comprises a N-shaped shell (41) fixedly mounted on the bottom of the base (2); a N-shaped shell (42) is arranged below the N-shaped shell (41); a damper (43) is fixedly mounted on the inner bottom wall of the N-shaped shell (42); the top of the damper (43) is connected to the N-shaped shell (41); a first spring (44) is arranged on the outer side wall of the damper (43); and the first spring (44) is located on the inner side of the N-shaped shell (41) and the N-shaped shell (42); and the universal wheel (3) is fixedly mounted on the bottom of the N-shaped shell (42).

6. The liquefied natural gas tank truck unloading device according to claim 5, characterized in that: The connecting assembly (5) comprises a connecting shell (51) sleeved on the N-shaped shell (41) and the N-shaped shell (42); positioning rods (52) are fixedly installed in rectangular frames on both sides of the connecting shell (51); square blocks (53) are arranged on the outer sides of the two positioning rods (52); two first U-shaped frames (54) are fixedly installed on the N-shaped shell (42); a first connecting rod (55) is fixedly installed on the two first U-shaped frames (54); two first strip plates (56) are sleeved on the outer sides of the first connecting rod (55); two second U-shaped frames are fixedly installed on the N-shaped shell (41); two second connecting rods are fixedly installed on the two second U-shaped frames; two second strip plates are sleeved on the outer sides of the second connecting rod; a third connecting rod (57) is arranged through the overlapping ends of the first strip plate (56) and the second strip plate; and the third connecting rod (57) is fixedly installed on the square blocks (53).

7. The liquefied natural gas tank truck unloading device according to claim 6, characterized in that: Two second springs (7) are arranged on the outer side of the positioning rod (52), and the two second springs (7) are located on both sides of the square block (53).

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