Gas pipeline limiting device

Abstract

The utility model discloses a gas pipeline limiting device, which belongs to the technical field of pipelines and structurally comprises a base, two side plates fixed on the upper surface of a bottom plate, a top plate fixed on the tops of the two side plates, two clamping plates in sliding fit with the upper surface of the top plate, first connecting rods arranged at the bottoms of the two clamping plates, and driving plates rotationally connected with one sides of the two side plates. A linkage plate is fixed to the bottom of the driving plate, two lifting plates are slidably matched between the top plate and the bottom plate, two second connecting rods are fixed between the two lifting plates, two sliding grooves are formed in the upper surface of the bottom plate, threaded lead screws are rotatably connected into the two sliding grooves, sliding plates are slidably matched into the two sliding grooves, and two swing plates are rotatably connected to the upper surfaces of the sliding plates. The top ends of the two swing plates are rotationally connected with the two lifting plates correspondingly. The limiting device for the gas pipeline can quickly and stably clamp and fix the gas pipeline, and is simple to operate, high in structural strength and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a gas pipeline limiting device. Background Art

[0002] LNG ship refers to a "ship" that is specially used to transport liquefied natural gas. The liquefied gas is stored in the liquid cargo tank of the LNG ship. The main component of liquefied natural gas is methane. When injecting natural gas into the liquid cargo tank, the natural gas needs to undergo a series of ultra-low temperature liquefaction.

[0003] When refueling natural gas, it is necessary to use a bracket to fix the transmission pipeline and limit the position of the natural gas pipeline to prevent the natural gas pipeline from shaking during the gas transmission process, which affects the stable transmission of natural gas. The existing natural gas installation bracket has a simple structure and poor adjustable performance. It cannot quickly clamp and fix the natural gas pipeline and is inconvenient to disassemble. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a gas pipeline limiting device, which can quickly and stably clamp and fix the gas pipeline, is simple to operate, has high structural strength, and is easy to disassemble and install.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Provided is a gas pipeline limiting device, comprising a base and a bottom plate, a support plate is fixed between the base and the bottom plate, two side plates are fixed on the upper surface of the bottom plate, a top plate is fixed on the top of the two side plates, two clamping plates are slidably matched on the upper surface of the top plate, a first connecting rod is provided at the bottom of the two clamping plates, a driving plate is rotatably connected to one side of the two side plates, a linkage plate is fixed at the bottom of the driving plate, a first strip groove is provided on one side of the driving plate, a second strip groove is provided on one side of the linkage plate, and the first connecting rod is slidably matched in the first strip groove;

[0007] Two lifting plates are slidably fitted between the top plate and the bottom plate, two second connecting rods are fixed between the two lifting plates, the second connecting rods are slidably fitted in the second strip grooves, two sliding grooves are opened on the upper surface of the bottom plate, threaded screw rods are rotatably connected in the two sliding grooves, and slide plates are slidably fitted in the two sliding grooves, the threaded screw rods penetrate the slide plates and are threadedly connected to the slide plates, two swing plates are rotatably connected to the upper surface of the slide plates, and the top ends of the two swing plates are rotatably connected to the two lifting plates respectively.

[0008] Furthermore, a pad for supporting the gas pipeline is fixed on the upper surface of the top plate, an arc-shaped surface is provided on the upper surface of the pad, and a clearance groove is provided on the upper surface of the top plate.

[0009] Furthermore, two groups of T-shaped slide rails are fixed on the upper surface of the top plate, and a group of slide seats are fixed on the lower surfaces of the two clamping plates. The slide seats are slidably fitted on the T-shaped slide rails, and the first connecting rod is fixed between the group of slide seats.

[0010] Furthermore, an arc-shaped clamping surface is provided on one side of the clamping plate, a reinforcing rib is fixed between the bottom of the clamping plate and the slide seat, and the top of the driving plate passes through the clearance groove and is slidably matched with the clearance groove.

[0011] Furthermore, transverse plates are fixed at both sides of the lower surfaces of the two lifting plates, four guide columns are fixed between the top plate and the bottom plate, and the lifting plates and the transverse plates are slidably sleeved on the guide columns.

[0012] Furthermore, a limit plate is provided on the top of the slide, the upper surface of the slide plate is in sliding contact with the lower surface of the limit plate, the threaded screw is provided with two threads in opposite directions, one end of the threaded screw passes through the bottom plate and is fixedly mounted with a handwheel.

[0013] Furthermore, fastening bolts are provided at the four corners of the upper surface of the base, a lifting plate is slidably fitted inside the support plate, the top end of the lifting plate is fixedly connected to the bottom plate, and the lifting plate and the support plate are fixedly connected by pins.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The gas pipeline limiting device of the utility model example adjusts the lifting plate to move vertically downward, so that the second connecting rod drives the linkage plate to rotate downward, and the driving plate rotates in the give way groove. During the rotation, the driving plate pushes the first connecting rod to move horizontally toward the pad, so that the two clamping plates move toward each other synchronously and clamp the gas pipeline quickly and stably. The operation is simple, the structural strength is high, and it is easy to disassemble and install.

[0016] 2. The gas pipeline limiting device of the utility model example can drive the two slides to move closer to or away from each other by rotating the threaded screw, and can drive the lifting plate to rise or fall between the two side plates through the cooperation of the swing plate, thereby realizing rapid regulation of the lifting plate. The threaded screw can stably fix the position of the slide plate by mechanical self-locking, indirectly locking the spatial position of the lifting plate, so that the clamping plate can stably clamp the gas pipeline.

[0017] 3. The gas pipeline limiting device of the utility model example can be fixed on the installation station through the base, and the horizontal height of the top plate can be adjusted by sliding the lifting plate in the support plate, thereby realizing the adjustment of the installation height of the gas pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the top plate of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the clamping plate of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the utility model when two lifting plates are connected;

[0023] Figure 5 It is a cross-sectional view of the bottom plate of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the side plate of the utility model.

[0025] In the figure, 1. base, 2. support plate, 3. bottom plate, 4. side plate, 5. top plate, 6. guide column, 7. lifting plate, 8. clamping plate, 9. make way groove, 10. pad, 11. T-type slide rail, 12. slide seat, 13. first connecting rod, 14. reinforcing rib, 15. second connecting rod, 16. cross plate, 17. slide groove, 18. limit plate, 19. slide plate, 20. swing plate, 21. threaded screw, 22. hand wheel, 23. drive plate, 24. linkage plate, 25. first strip groove, 26. second strip groove. DETAILED DESCRIPTION

[0026] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0028] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the drawings.

[0032] Example: Reference Figure 1-6 A gas pipeline limiting device shown in the figure comprises a base 1 and a bottom plate 3, a support plate 2 is fixed between the base 1 and the bottom plate 3, two side plates 4 are fixed on the upper surface of the bottom plate 3, a top plate 5 is fixed on the top of the two side plates 4, two clamping plates 8 are slidably matched on the upper surface of the top plate 5, a first connecting rod 13 is provided at the bottom of the two clamping plates 8, one side of the two side plates 4 is rotatably connected to a driving plate 23, a linkage plate 24 is fixed at the bottom of the driving plate 23, a first strip groove 25 is opened on one side of the driving plate 23, a second strip groove 26 is opened on one side of the linkage plate 24, and the first connecting rod 13 is slidably matched in the first strip groove 25;

[0033] Two lifting plates 7 are slidably matched between the top plate 5 and the bottom plate 3, two second connecting rods 15 are fixed between the two lifting plates 7, the second connecting rods 15 are slidably matched in the second strip grooves 26, two slide grooves 17 are provided on the upper surface of the bottom plate 3, threaded screws 21 are rotatably connected in the two slide grooves 17, and slide plates 19 are slidably matched in both slide grooves 17, the threaded screws 21 penetrate the slide plates 19 and are threadedly connected with the slide plates 19, two swing plates 20 are rotatably connected on the upper surface of the slide plates 19, and the top ends of the two swing plates 20 are rotatably connected with the two lifting plates 7 respectively;

[0034] Fastening bolts are provided at the four corners of the upper surface of the base 1, a lifting plate is slidably fitted inside the support plate 2, the top of the lifting plate is fixedly connected to the bottom plate 3, and the lifting plate and the support plate 2 are fixedly connected by pins, a clearance groove 9 is opened on the upper surface of the top plate 5, and the top of the driving plate 23 passes through the clearance groove 9 and slidably fits with the clearance groove 9.

[0035] When the gas pipeline limiting device is used to clamp the limited gas pipeline, the base 1 is fixed to the preset installation position by tightening the bolts, the lifting plate is slid to lift the bottom plate 3, and the lifting plate and the support plate 2 are fixed with pins to prevent the lifting plate from sliding in the support plate 2, and the gas pipeline is placed on the top plate 5, and the threaded screw 21 is rotated so that the threaded screw 21 drives the slide plate 19 to move away from each other. At this time, the top of the swing plate 20 will swing downward, and under the pull of the swing plate 20, the two lifting plates 7 will slide vertically between the bottom plate 3 and the top plate 5. During the sliding of the lifting plate 7, the second connecting rod 15 will move along the second strip When the groove 26 descends and the groove wall of the second strip groove 26 is squeezed, the linkage plate 24 will swing downward. At this time, the driving plate 23 will swing toward the gas pipeline on the inner side of the yield groove 9. The first connecting rod 13 in the first strip groove 25 slides synchronously toward the gas pipeline under the push of the driving plate 23. The first connecting rod 13 slides in the first strip groove 25, so that the two clamping plates 8 move toward each other synchronously and clamp the gas pipeline. The threaded screw 21 can stabilize the position of the slide plate 19 by mechanical self-locking, and indirectly lock the spatial position of the lifting plate 7, so that the clamping plate 8 can stably clamp the gas pipeline.

[0036] In order to enable the clamping plate 8 to clamp and fix the gas pipeline more stably, in this embodiment, an arc-shaped clamping surface is provided on one side of the clamping plate 8, and a pad 10 for supporting the gas pipeline is fixed on the upper surface of the top plate 5, and an arc-shaped surface is provided on the upper surface of the pad 10. The setting of the pad 10 plays a role in supporting the gas pipeline, and the arc-shaped surfaces provided on the clamping plate 8 and the pad 10 can make the gas pipeline be clamped more stably.

[0037] In order to enable the two clamping plates 8 to slide stably on the upper surface of the top plate 5, in this embodiment, two groups of T-shaped slide rails 11 are fixed on the upper surface of the top plate 5, and a group of slide seats 12 are fixed on the lower surface of the two clamping plates 8. The slide seats 12 slide and fit on the T-shaped slide rails 11, and the first connecting rod 13 is fixed between a group of slide seats 12. A reinforcing rib 14 is fixed between the bottom of the clamping plate 8 and the slide seat 12. The sliding cooperation between the slide seat 12 and the T-shaped slide rail 11 can enable the slide seat 12 to slide stably on the surface of the top plate 5, and the provision of the reinforcing rib 14 improves the structural strength of the connection between the clamping plate 8 and the slide seat 12.

[0038] In order to enable the two lifting plates 7 to stably slide vertically between the top plate 5 and the bottom plate 3, in this embodiment, horizontal plates 16 are fixed at both sides of the lower surface of the two lifting plates 7, four guide columns 6 are fixed between the top plate 5 and the bottom plate 3, and the lifting plates 7 and the horizontal plates 16 are slidably sleeved on the guide columns 6. The two lifting plates 7 are fixed together by the horizontal plates 16, so that the two lifting plates 7 are synchronously lifted and lowered vertically, which improves the structural strength. The provision of the guide columns 6 allows the lifting plates 7 to slide vertically along the guide columns 6, which improves the stability of the lifting plates 7 when moving.

[0039] In order to enable the two slide plates 19 to slide stably in the slide groove 17, in this embodiment, a limit plate 18 is provided on the top of the slide groove 17, and the upper surface of the slide plate 19 is in sliding contact with the lower surface of the limit plate 18. The threaded screw 21 is provided with two threads in opposite directions, and one end of the threaded screw 21 passes through the bottom plate 3 and is fixedly installed with a hand wheel 22. The setting of the limit plate 18 can limit the slide plate 19 to slide inside the slide groove 17, and the two threads in opposite directions on the threaded screw 21 can drive the two slide plates 19 to move away from or close to each other during the rotation process, thereby controlling the vertical descent or ascent of the lifting plate 7, and the setting of the hand wheel 22 facilitates the rotation of the threaded screw 21.

[0040] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

[0041] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the other technical features will not be described in detail here.

Claims

1. A gas pipeline limiting device, comprising a base (1) and a bottom plate (3), wherein a support plate (2) is fixed between the base (1) and the bottom plate (3), characterized in that: Two side plates (4) are fixed on the upper surface of the bottom plate (3), a top plate (5) is fixed on the top of the two side plates (4), two clamping plates (8) are slidably matched on the upper surface of the top plate (5), a first connecting rod (13) is provided at the bottom of the two clamping plates (8), one side of the two side plates (4) is rotatably connected to a driving plate (23), a linkage plate (24) is fixed at the bottom of the driving plate (23), a first strip groove (25) is provided on one side of the driving plate (23), a second strip groove (26) is provided on one side of the linkage plate (24), and the first connecting rod (13) is slidably matched in the first strip groove (25); Two lifting plates (7) are slidably engaged between the top plate (5) and the bottom plate (3), two second connecting rods (15) are fixed between the two lifting plates (7), the second connecting rods (15) are slidably engaged in the second strip groove (26), the upper surface of the bottom plate (3) is provided with two sliding grooves (17), the two sliding grooves (17) are rotatably connected with threaded screws (21), and the two sliding grooves (17) are slidably engaged with slide plates (19), the threaded screws (21) penetrate the slide plates (19) and are threadedly connected to the slide plates (19), the upper surface of the slide plates (19) are rotatably connected with two swing plates (20), the top ends of the two swing plates (20) are rotatably connected to the two lifting plates (7) respectively.

2. The gas pipeline limiting device according to claim 1, characterized in that: A backing plate (10) for supporting the gas pipeline is fixed on the upper surface of the top plate (5), the upper surface of the backing plate (10) is provided with an arc surface, and a clearance groove (9) is provided on the upper surface of the top plate (5).

3. The gas pipeline limiting device according to claim 2, characterized in that: Two groups of T-shaped slide rails (11) are fixed on the upper surface of the top plate (5), and a group of slide seats (12) are fixed on the lower surfaces of the two clamping plates (8). The slide seats (12) are slidably fitted on the T-shaped slide rails (11), and the first connecting rod (13) is fixed between the group of slide seats (12).

4. The gas pipeline limiting device according to claim 3, characterized in that: An arc-shaped clamping surface is provided on one side of the clamping plate (8), a reinforcing rib (14) is fixed between the bottom of the clamping plate (8) and the slide seat (12), and the top of the driving plate (23) passes through the clearance groove (9) and is slidably matched with the clearance groove (9).

5. The gas pipeline limiting device according to claim 1, characterized in that: Horizontal plates (16) are fixed at both sides of the lower surfaces of the two lifting plates (7), four guide columns (6) are fixed between the top plate (5) and the bottom plate (3), and the lifting plates (7) and the horizontal plates (16) are slidably sleeved on the guide columns (6).

6. The gas pipeline limiting device according to claim 1, characterized in that: A limit plate (18) is provided at the top of the slide groove (17), the upper surface of the slide plate (19) is in sliding contact with the lower surface of the limit plate (18), the threaded screw (21) is provided with two threads in opposite directions, one end of the threaded screw (21) passes through the bottom plate (3) and is fixedly mounted with a hand wheel (22).

7. The gas pipeline limiting device according to any one of claims 1 to 6, characterized in that: Fastening bolts are provided at the four corners of the upper surface of the base (1); a lifting plate is slidably fitted inside the support plate (2); the top end of the lifting plate is fixedly connected to the bottom plate (3), and the lifting plate and the support plate (2) are fixedly connected via pins.

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