LNG (Liquefied Natural Gas) filling device

Abstract

The utility model discloses an LNG (Liquefied Natural Gas) filling device and relates to the technical field of gas filling devices. Comprising a mounting base, a mounting mechanism for LNG filling is arranged on the mounting base, and the mounting mechanism comprises that when a gas filling seat is placed, the gas filling seat is positioned and inserted along a slide rail bracket through a slide block, so that the gas filling seat can accurately and quickly reach a preset position; a connecting plate is compressed and lifted on the inner wall of the fixing plate through a connecting shaft and a compression spring, after the gas filling seat is inserted, the connecting plate is loosened, so that a stop block at the lower end of the connecting plate and a clamping groove block at the upper end of the gas filling seat are correspondingly mounted, the gas filling seat is placed, and therefore stable mounting of the gas filling seat is achieved; and then the rubber ring at the front end of the protective sleeve is tightly attached to the gas filling seat, the sealing performance of the gas outlet pipe is improved after the gas filling seat is placed, and dust is prevented from entering the gas filling seat.

Description

Technical Field

[0001] The utility model relates to the technical field of gas filling devices, in particular to an LNG gas filling device. Background Art

[0002] LNG stands for liquefied natural gas. Natural gas is a combustible gas extracted naturally from gas fields, primarily composed of methane. LNG is produced by cooling natural gas at atmospheric pressure to -162°C, condensing it into a liquid. Liquefied natural gas significantly reduces storage and transportation space and offers high calorific value and superior performance.

[0003] The reference patent (publication number: CN215522872U; publication date: 2022-01-14) relates to an LNG industrial natural gas filling device, including a filling device and an air storage box. The filling device is provided with an air outlet pipe, and an air outlet channel is provided on the inner side of the air outlet pipe. A sealing base is provided on the inner side of the filling device, and an air outlet plug is provided on the right side of the sealing base. A connecting rod is provided on the left side of the sealing base, and a pull rod is provided on the left side of the connecting rod. An anti-slip groove is provided on the pull rod, and an elastic part is provided on the outside of the connecting rod. Elastic sealing parts are provided between the connecting rod, the sealing base, the air outlet plug and the filling device, and a conical sealing ring is provided on the outside of the air outlet pipe. An air supply pipe is provided below the filling device, and the filling device is connected to the air storage box through the air supply pipe.

[0004] Traditional gas filling devices often lack effective support and protection mechanisms for the gas filling pipes, which causes the gas filling pipes to easily drag and rub against the ground or other hard objects during use, thereby causing wear and potential damage. In addition, simple suspension is usually used when placing the gas filling seat, which is easy to fall off due to vibration or external force. In addition, the gas outlet is not easy to seal and protect after placement, causing dust to enter. For this reason, the utility model provides an LNG gas filling device. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides an LNG filling device, which solves the problem that traditional filling devices often lack an effective support and protection mechanism for the gas filling pipe, which causes the gas filling pipe to easily drag and rub against the ground or other hard objects during use, thereby causing wear and potential damage, and the gas filling seat is usually placed with a simple suspension, which is easy to fall off due to vibration or external force, and the gas outlet is not easy to seal and protect after placement, causing dust to enter.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an LNG filling device includes a mounting base, on which a mounting mechanism for LNG filling is provided, the mounting mechanism including:

[0007] The support assembly includes a first support shell fixedly connected to the right side wall of the mounting base, a telescopic assembly is provided inside the first support shell and connected to a third support shell, the upper end of the third support shell is fixedly connected to a support rod, and the upper end of the support rod is fixedly connected to a support ring;

[0008] The locking assembly includes an LNG filling body provided at the upper end of the mounting base, a connecting shaft provided on the right side wall of the LNG filling body, a connecting plate provided on the outer wall of the connecting shaft, a stop block provided on the lower end of the connecting plate, a slide rail bracket fixedly connected to the right side wall of the LNG filling body, and a protective shell connected by an elastic assembly provided on the outer walls of the LNG filling body.

[0009] Preferably, the telescopic assembly includes a limit groove opened inside the first support shell, the limit groove is internally slidably connected to a limit block, a second support shell is provided at the right end of the limit block, and the second support shell is located inside the first support shell and is slidably connected, and the third support shell is located inside the second support shell and is slidably connected.

[0010] Preferably, a gas filling pipe is provided at the lower right end of the LNG filling body, a gas filling seat is provided at the end of the gas filling pipe, an air outlet pipe is provided at the front end of the gas filling seat, sliders are provided on both sides of the gas filling seat, a slot block is provided at the upper end of the gas filling seat, and the size of the block is consistent with that of the slot block, a compression spring is provided on the upper end surface of the connecting plate, a fixed plate is provided at the upper end of the compression spring, and the fixed plate is fixedly connected to the right side wall of the LNG filling body.

[0011] Preferably, the lower end surface of the connecting plate is located at a support block fixedly connected to the right side wall of the LNG filling body, and a slide rail bracket is provided on the right side wall of the LNG filling body below the support block.

[0012] Preferably, the elastic component includes a shock-absorbing spring fixedly connected at four ends to the outer wall of the LNG filling body, the inner ring of the shock-absorbing spring is located on the outer wall of the LNG filling body and a damping support rod is provided, the protective shell is located at the end of the shock-absorbing spring, and a U-shaped cavity groove is opened at the right end of the protective shell.

[0013] Preferably, the right side wall of the LNG filling body is fixedly connected to a protective sleeve with a cylindrical structure, the front end of the protective sleeve is fixedly connected to a rubber ring, the top of the LNG filling body is fixedly connected to a rain shield bracket, and the outer wall of the rain shield bracket is provided with a drainage groove.

[0014] Beneficial effects

[0015] The utility model provides an LNG refueling device. Compared with the existing technology, it has the following advantages:

[0016] First, when the present invention places the gas filling seat, the gas filling seat is positioned and inserted along the slide rail bracket through the slider, ensuring that the gas filling seat can reach the predetermined position accurately and quickly, and the connecting plate is compressed and lifted on the inner wall of the fixed plate through the connecting shaft and the compression spring. When the gas filling seat is inserted, the connecting plate is loosened so that the stop block at the lower end of the connecting plate is installed correspondingly with the slot block at the upper end of the gas filling seat, thereby realizing the placement of the gas filling seat, thereby achieving a stable installation of the gas filling seat and preventing the gas filling seat from falling off due to vibration or external force, and the air outlet pipe at the front end of the gas filling seat is engaged with the inside of the protective sleeve on the right side wall of the LNG filling body, and then the rubber ring at the front end of the protective sleeve is tightly fitted with the gas filling seat, which improves the sealing of the air outlet pipe after placement and prevents the entry of dust.

[0017] Secondly, the second support shell provided in the utility model can telescope and slide with the interior of the first support shell through the limit block and the limit groove, and the third support shell can be telescoped inside the second support shell, so as to realize the telescopic support rod and support ring on the third support shell. Through the multi-stage telescopic structure, it can be flexibly adjusted according to the length of the gas filling pipe, making the gas filling operation more convenient. The support ring is used to support the gas filling pipe. As the gas filling pipe is used, it cooperates with the support ring to support it, effectively avoiding the gas filling pipe from dragging and friction with the ground or other hard objects during use, thereby reducing the wear and potential damage risk of the gas filling pipe. Then the protective shell uses shock-absorbing springs and damping support rods to perform a certain shock-absorbing and buffering effect on the outer walls of the four ends of the LNG filling body to prevent damage when it is collided outdoors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the protective housing connection structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure of the gas filling seat of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the first supporting shell and the second supporting shell of the present invention.

[0022] In the figure: 1. Mounting base; 2. LNG filling body; 201. Shock-absorbing spring; 202. Damping support rod; 203. Protective shell; 3. Cavity groove; 4. First support shell; 401. Limit groove; 402. Limit block; 403. Second support shell; 404. Third support shell; 405. Support rod; 406. Support ring; 5. Filling pipe; 501. Filling seat; 502. Outlet pipe; 503. Slider; 6. Protective cover; 601. Rubber ring; 7. Slide rail bracket; 8. Connecting shaft; 801. Connecting plate; 802. Block; 803. Slot block; 804. Fixing plate; 805. Compression spring; 806. Support block; 9. Rain shield bracket; 901. Drainage groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] See also Figure 1-4 The utility model provides a technical solution: an LNG filling device, comprising a mounting base 1, on which a mounting mechanism for LNG filling is provided, the mounting mechanism comprising:

[0026] The support assembly includes a first support shell 4 fixedly connected to the right side wall of the mounting base 1, a telescopic assembly is provided inside the first support shell 4 to connect to the third support shell 404, the upper end of the third support shell 404 is fixedly connected to a support rod 405, and the upper end of the support rod 405 is fixedly connected to a support ring 406;

[0027] The locking assembly includes an LNG filling body 2 provided at the upper end of the mounting base 1, a connecting shaft 8 provided on the right side wall of the LNG filling body 2, a connecting plate 801 provided on the outer wall of the connecting shaft 8, a stop block 802 provided on the lower end of the connecting plate 801, a slide rail bracket 7 fixedly connected to the right side wall of the LNG filling body 2, and a protective shell 203 connected by an elastic assembly provided on the outer walls around the LNG filling body 2.

[0028] In a preferred embodiment, the telescopic assembly includes a limiting groove 401 opened inside the first support shell 4, the internal sliding connection of the limiting groove 401 is a limiting block 402, the right end of the limiting block 402 is provided with a second support shell 403, and the second support shell 403 is located inside the first support shell 4 and is slidably connected, and the third support shell 404 is located inside the second support shell 403 and is slidably connected, and the second support shell 403 is provided to perform telescopic sliding work with the interior of the first support shell 4 through the limiting block 402 and the interior of the limiting groove 401, so as to The third support shell 404 can be telescoped inside the second support shell 403, so as to realize the telescopic operation of the support rod 405 and the support ring 406 on the third support shell 404. Through the multi-stage telescopic structure, it can be flexibly adjusted according to the length of the gas filling pipe 5, making the gas filling operation more convenient. The support ring 406 is used to support the gas filling pipe 5. As the gas filling pipe 5 is used, the support ring 406 is used to support it, which effectively avoids the gas filling pipe 5 from dragging and friction with the ground or other hard objects during use, thereby reducing the wear and potential damage risk of the gas filling pipe 5.

[0029] In a preferred embodiment, a gas filling pipe 5 is provided at the lower right end of the LNG filling body 2, a gas filling seat 501 is provided at the end of the gas filling pipe 5, an air outlet pipe 502 is provided at the front end of the gas filling seat 501, sliders 503 are provided on both sides of the gas filling seat 501, a slot block 803 is provided at the upper end of the gas filling seat 501, and the size of the stop block 802 is consistent with that of the slot block 803, a compression spring 805 is provided on the upper end face of the connecting plate 801, a fixed plate 804 is provided at the upper end of the compression spring 805, and the fixed plate 804 is fixedly connected to the right side wall of the LNG filling body 2.

[0030] In a preferred embodiment, the lower end face of the connecting plate 801 is located at the support block 806 fixedly connected to the right side wall of the LNG filling main body 2, and the right side wall of the LNG filling main body 2 is located below the support block 806 and is provided with a slide rail bracket 7. The LNG filling main body 2 is used to store natural gas, and then the gas outlet pipe 502 is used for gas filling through the gas filling seat 501 and the gas filling pipe 5 and the LNG filling main body 2. It belongs to the existing technology and will not be elaborated on. Then, when the gas filling seat 501 is placed, the gas filling seat 501 is moved along the slide rail bracket through the slider 503. 7 is positioned and inserted to ensure that the gas filling seat 501 can reach the predetermined position accurately and quickly, and the connecting plate 801 is compressed and lifted on the inner wall of the fixed plate 804 through the connecting shaft 8 and the compression spring 805. When the gas filling seat 501 is inserted, the connecting plate 801 is loosened so that the stop block 802 at the lower end of the connecting plate 801 and the slot block 803 at the upper end of the gas filling seat 501 are installed correspondingly to realize the placement of the gas filling seat 501, thereby realizing the stable installation of the gas filling seat 501 and preventing the gas filling seat 501 from falling off due to vibration or external force.

[0031] Embodiment 2: This embodiment differs from Embodiment 1 in that the technical solution includes:

[0032] In a preferred embodiment, the elastic component includes a shock-absorbing spring 201 fixedly connected to the four ends of the outer wall of the LNG filling body 2. The inner ring of the shock-absorbing spring 201 is located on the outer wall of the LNG filling body 2 and a damping support rod 202 is provided. The protective shell 203 is located at the end of the shock-absorbing spring 201. The right end of the protective shell 203 is provided with a U-shaped cavity groove 3. The cavity groove 3 is used to connect the gas filling pipe 5 with the LNG filling body 2 and place the gas filling seat 501. Then the protective shell 203 performs a certain shock-absorbing and buffering effect on the outer walls of the four ends of the LNG filling body 2 through the shock-absorbing spring 201 and the damping support rod 202 to prevent damage when it is collided outdoors.

[0033] In a preferred embodiment, the right side wall of the LNG filling body 2 is fixedly connected to a protective sleeve 6 with a cylindrical structure, the front end of the protective sleeve 6 is fixedly connected to a rubber ring 601, and the top of the LNG filling body 2 is fixedly connected to a rain shield bracket 9. The outer wall of the rain shield bracket 9 is provided with a drainage groove 901. The rain shield bracket 9 and the drainage groove 901 ensure that rainwater is blocked outdoors and the accumulation of rainwater is avoided. Then the air outlet pipe 502 at the front end of the filling seat 501 is engaged with the inside of the protective sleeve 6 on the right side wall of the LNG filling body 2, and then the rubber ring 601 at the front end of the protective sleeve 6 is tightly fitted with the filling seat 501. After placement, the sealing of the air outlet pipe 502 is improved to prevent the entry of dust.

[0034] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] The LNG filling body 2 is provided for storing natural gas, and then the gas outlet pipe 502 is used for filling with the LNG filling body 2 through the gas filling seat 501 and the gas filling pipe 5, which is a prior art and will not be elaborated on in detail. Then, when the gas filling seat 501 is placed, the gas filling seat 501 is positioned and inserted along the slide rail bracket 7 through the slider 503, ensuring that the gas filling seat 501 can accurately and quickly reach the predetermined position, and the connecting plate 801 is compressed and lifted on the inner wall of the fixed plate 804 through the connecting shaft 8 and the compression spring 805. After the gas filling seat 501 is inserted, the connecting plate 801 is loosened so that the stopper 802 at the lower end of the connecting plate 801 is correspondingly installed with the card slot block 803 at the upper end of the gas filling seat 501, thereby realizing the placement of the gas filling seat 501, thereby realizing the stable installation of the gas filling seat 501 and preventing the gas filling seat 501 from falling off due to vibration or external force.

[0036] The LNG filling body 2 is used to store natural gas, and then the gas outlet pipe 502 is used for filling with the LNG filling body 2 through the filling seat 501 and the filling pipe 5, which belongs to the existing technology and will not be elaborated on. Then, when the filling seat 501 is placed, the filling seat 501 is positioned and inserted along the slide rail bracket 7 through the slider 503, ensuring that the filling seat 501 can reach the predetermined position accurately and quickly, and the connecting plate 801 is pressed against the inner wall of the fixed plate 804 through the connecting shaft 8 and the compression spring 805. Compress and lift it. When the gas filling seat 501 is inserted, loosen the connecting plate 801 so that the stop block 802 at the lower end of the connecting plate 801 is installed correspondingly with the slot block 803 at the upper end of the gas filling seat 501 to realize the placement of the gas filling seat 501, and the air outlet pipe 502 at the front end of the gas filling seat 501 is engaged with the inside of the protective sleeve 6 on the right side wall of the LNG filling body 2, and then the rubber ring 601 at the front end of the protective sleeve 6 is tightly fitted with the gas filling seat 501. After placement, the sealing of the air outlet pipe 502 is improved to prevent dust from entering.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An LNG refueling device, comprising a mounting base (1), characterized in that: The mounting base (1) is provided with a mounting mechanism for LNG refueling, and the mounting mechanism comprises: A support assembly comprises a first support shell (4) fixedly connected to the right side wall of the mounting base (1); a telescopic assembly is provided inside the first support shell (4) and connected to a third support shell (404); a support rod (405) is fixedly connected to the upper end of the third support shell (404); and a support ring (406) is fixedly connected to the upper end of the support rod (405); The locking assembly comprises an LNG filling body (2) provided at the upper end of a mounting base (1), a connecting shaft (8) provided on the right side wall of the LNG filling body (2), a connecting plate (801) provided on the outer wall of the connecting shaft (8), a stopper (802) provided on the lower end of the connecting plate (801), a slide rail bracket (7) fixedly connected to the right side wall of the LNG filling body (2), and a protective shell (203) connected via an elastic assembly provided on the outer walls of the LNG filling body (2).

2. The LNG refueling device according to claim 1, characterized in that: The telescopic assembly comprises a limiting groove (401) provided inside a first supporting shell (4); a limiting block (402) is slidably connected inside the limiting groove (401); a second supporting shell (403) is provided at the right end of the limiting block (402); the second supporting shell (403) is located inside the first supporting shell (4) and is slidably connected; and the third supporting shell (404) is located inside the second supporting shell (403) and is slidably connected.

3. The LNG refueling device according to claim 1, characterized in that: A gas filling pipe (5) is provided below the right end of the LNG filling body (2), a gas filling seat (501) is provided at the end of the gas filling pipe (5), an air outlet pipe (502) is provided at the front end of the gas filling seat (501), sliders (503) are provided on both sides of the gas filling seat (501), a slot block (803) is provided at the upper end of the gas filling seat (501), and the size of the stop block (802) is consistent with that of the slot block (803), a compression spring (805) is provided on the upper end surface of the connecting plate (801), a fixing plate (804) is provided at the upper end of the compression spring (805), and the fixing plate (804) is fixedly connected to the right side wall of the LNG filling body (2).

4. The LNG refueling device according to claim 1, characterized in that: The elastic component comprises a shock-absorbing spring (201) fixedly connected at four ends to the outer wall of the LNG filling body (2); the inner ring of the shock-absorbing spring (201) is located on the outer wall of the LNG filling body (2) and is provided with a damping support rod (202); the protective shell (203) is located at the end of the shock-absorbing spring (201); and a U-shaped cavity groove (3) is opened at the right end of the protective shell (203).

5. The LNG refueling device according to claim 1, characterized in that: The lower end surface of the connecting plate (801) is located on a support block (806) fixedly connected to the right side wall of the LNG filling body (2), and a slide rail bracket (7) is provided on the right side wall of the LNG filling body (2) below the support block (806).

6. The LNG refueling device according to claim 1, characterized in that: The right side wall of the LNG filling body (2) is fixedly connected to a protective sleeve (6) with a cylindrical structure, the front end of the protective sleeve (6) is fixedly connected to a rubber ring (601), and the top end of the LNG filling body (2) is fixedly connected to a rain shield bracket (9), and the outer wall of the rain shield bracket (9) is provided with a drainage groove (901).

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