Turnover frame for filling liquefied gas

Abstract

The utility model relates to the technical field of liquefied gas filling, and discloses a turnover frame for liquefied gas filling, which comprises a turnover frame, the turnover frame comprises a base arranged above a filling weighing platform, and a support frame arranged above the base; the rotating part is rotationally connected to the supporting frame, the rotating part is an arc-shaped plate or an arc-shaped frame composed of a steel frame, a top plate and a bottom plate are arranged at the two ends of the rotating part respectively, and a liquefied gas bottle is placed in the rotating part; the clasping structures are connected to the side face of the rotating part in a sliding mode and used for clasping the liquefied gas bottle located in the rotating part, and each clasping structure is in an arc shape; the locking structure comprises a locking plate and a locking groove, the locking plate is arranged on the rotating piece, the locking groove is formed in the supporting frame or the base, and the locking plate is used for being clamped in the locking groove so as to lock the rotating piece and prevent the rotating piece from rotating. According to the turnover frame for filling the liquefied gas, the liquid phase bottle is turned over, so that the turnover frame has two filling modes including a downward feeding mode and an upward feeding mode at the same time under the condition that only one liquid phase opening is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of liquefied gas filling, in particular to a turnover frame for liquefied gas filling. Background Art

[0002] Normally, liquefied gas liquids (propane / butane / liquid ammonia / LNG, etc.) are filled from the top, because under high pressure, the liquid can liquefy the gas in the bottle, reduce the pressure in the bottle, and the filling will be smooth. The original liquid phase bottle has two ports for gas / liquid, but the current liquid phase bottle can only have one liquid phase port. When filling, the liquid enters from the bottom, and the gas in the upper part cannot be liquefied, making filling very difficult.

[0003] In summary, the problem encountered in the existing liquefied gas filling is that when the liquid phase bottle has only one liquid phase port, it cannot simultaneously meet the two filling methods of upper liquid inlet type and lower liquid inlet type. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides a flip rack for filling liquefied gas, which has the advantages of flipping the liquid phase bottle and having both bottom-in and top-in filling methods under the condition of only one liquid phase port, thereby solving the problem that when the liquid phase bottle has only one liquid phase port, both top-in and bottom-in filling methods cannot be satisfied at the same time.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A turnover rack for filling liquefied gas, comprising a turnover rack, the turnover rack comprising:

[0009] A base is arranged above the filling scale platform, and a support frame is arranged above the base;

[0010] A rotating member is rotatably connected to the support frame. The rotating member is an arc-shaped plate or an arc-shaped frame composed of a steel frame. A top plate and a bottom plate are respectively arranged at both ends of the rotating member. The rotating member is used to place a liquefied gas cylinder.

[0011] The clamping structure is slidably connected to the side of the rotating member and is used to clamp the liquefied gas cylinder located inside the rotating member. Each clamping structure is in an arc shape.

[0012] The locking structure comprises a locking plate and a locking groove, wherein the locking plate is arranged on the rotating member, the locking groove is arranged on the supporting frame or the base, and the locking plate is used to be stuck in the locking groove so as to lock the rotating member so that it cannot rotate.

[0013] Preferably, the rotating member comprises two fixed parts and a sliding part which are slidably connected together, the middle position of the fixed part is rotatably connected to the support frame, the top plate is arranged at the top end of the fixed part, the bottom plate is arranged at the bottom end of the sliding part, and the lower half of the fixed part and the upper half of the sliding part are slidably connected together through a sliding structure;

[0014] The sliding connection portion between the fixed portion and the sliding portion is provided with a lifting structure, and the lifting structure comprises:

[0015] Two racks are vertically arranged on the left and right sides, and the teeth of the two racks are arranged inwardly;

[0016] Two driving gears and driven gears of the same size are arranged between the two racks. The driving gear and the driven gear mesh with the teeth of the racks on both sides respectively, and the teeth of the driving gear and the driven gear also mesh with each other. The rotating shafts of the driving gear and the driven gear are fixed on the same plane and rise and fall synchronously.

[0017] A rotating disk, a driving shaft fixedly connected to the central axis of the driving gear is provided, and the other end of the driving shaft is fixedly connected to the rotating disk;

[0018] When the rotating disk drives the driving gear to rotate, the driving gear and the meshing rack thereof move up and down relatively, the driving gear drives the driven gear to rotate in the opposite direction, and the driven gear drives the meshing rack thereof to move up and down in the same direction as the driving gear.

[0019] Preferably, the driving gear, the driven gear and the two racks are arranged in the back box, the two racks are fixed on the two side walls in the back box, the back box is provided with an inner groove at the rotating shaft of the driving gear and the driven gear, the inner groove is located on the side of the back box facing away from the turntable, the rotating shaft of the driving gear and the driven gear slides in the inner groove, the back box is provided with a back box cover plate on one side of the rotating shaft direction of the driving gear and the driven gear, and the back box cover plate is provided with two slide grooves for sliding of the rotating shaft;

[0020] A driven shaft front section sliding along the central axis direction is provided at the central axis of the driven gear, and a driven shaft rear section is connected to the end of the driven shaft front section away from the driven gear, and the end of the driven shaft rear section is stuck in the annular groove on the back of the turntable and slides, and when the turntable is pulled inward or outward, the driven shaft rear section and the driven shaft front section are driven to move.

[0021] Preferably, the width of the slide groove on the back box cover corresponding to the driven gear shaft exceeds the diameter of the rear section of the driven shaft and is smaller than the diameter of the front section of the driven shaft, and a plurality of fixing holes are evenly arrayed on the slide groove, and the diameter of the fixing holes exceeds the diameter of the front section of the driven shaft.

[0022] Preferably, the turntable is provided with scales evenly distributed around the circumference, the rotating member is provided with a pointer on the side wall close to the turntable, the distance between two adjacent fixed holes is equal to the displacement generated by the driving gear or the driven gear and the rack after rotating the angle between two adjacent scales, and the turntable is also provided with a handle and a pull ring.

[0023] Preferably, the back box is fixed to the back of the fixed part, and the rear sections of the driving shaft and the driven shaft are fixed to the sliding part, or the back box is fixed to the sliding part, and the rear sections of the driving shaft and the driven shaft are fixed to the fixed part.

[0024] Preferably, the locking plate is slidably connected to the top of the fixing portion, and the locking groove is located directly below the locking plate after the rotating member is flipped 180 degrees.

[0025] Preferably, at least two mutually symmetrical sliding structures are arranged between the fixed part and the sliding part, and any sliding structure includes a vertical sliding groove and a plurality of protrusions, wherein the vertical sliding groove is arranged on the sliding part, and the protrusion is arranged on the back side of the fixed part, the protrusion is stuck in the vertical sliding groove and slides, and a cap connected by a thread is arranged on the top of the protrusion.

[0026] Preferably, reinforcing ribs are provided between the top plate and the fixing portion, and between the bottom plate and the sliding portion.

[0027] (III) Beneficial effects

[0028] Compared with the prior art, the utility model provides a turnover rack for filling liquefied gas, which has the following beneficial effects:

[0029] 1. The turning frame for filling liquefied gas is provided with a turning frame above the filling scale platform. The liquefied gas cylinder is placed in the rotating part and then clamped by the clamping structure. After rotating 180 degrees, the locking plate is inserted into the locking groove and locked before filling. This realizes the purpose of having both bottom-in and top-in filling modes under the condition of only one liquid phase port.

[0030] 2. The turning frame for filling liquefied gas has a rotating part which is arranged as two relatively sliding fixed parts and a supporting frame. The sliding part slides down before use so that the bottom plate is located on the upper surface of the base, thereby facilitating the placement of the liquefied gas cylinder above the bottom plate. The driving gear, the driven gear and the rack are driven by rotating the turntable in the lifting structure to cooperate with each other to make the sliding part rise to the position where the top of the liquefied gas cylinder is against the lower surface of the top plate. The top plate and the bottom plate clamp the liquefied gas cylinder at the upper and lower ends, thereby making the turning frame adaptable to liquefied gas cylinders of different heights.

[0031] 3. The turning frame for filling liquefied gas is provided with a fixing hole on the slide groove of the back box cover plate on one side of the back box. After the lifting is completed, the front section of the driven shaft is locked in the fixing hole by pulling out the turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The present invention is a schematic structural diagram of a bottom-entry liquefied gas cylinder in the prior art.

[0033] Figure 2 It is a structural schematic diagram of the overturning frame for filling liquefied gas of the utility model.

[0034] Figure 3 This is a rear view of the turning frame of the utility model after removing the sliding part and the back box cover.

[0035] Figure 4 It is a schematic diagram of the partial structure of the slide groove part on the back box cover of the utility model.

[0036] Figure 5 It is a partial structural schematic diagram of the turntable of the utility model.

[0037] Figure 6 It is a structural schematic diagram of the back side of the turntable of the utility model.

[0038] Figure 7 It is a schematic diagram of the structure of placing a liquefied gas cylinder on a turning frame in the utility model.

[0039] Figure 8 It is a schematic diagram of the structure after the liquefied gas cylinder is lifted by the lifting structure in the utility model.

[0040] Fig. 9 It is a schematic diagram of the structure after the liquefied gas cylinder is turned over by the turning frame in the utility model.

[0041] In the figure: 100, liquefied gas cylinder; 110, gas inlet; 200, filling scale;

[0042] 300, flip frame; 350, base; 310, support frame; 320, fixing part; 321, top plate; 330, sliding part; 331, bottom plate; 340, sliding structure; 301, rotating member;

[0043] 400, lifting structure; 410, back box; 411, rack; 413, driving gear; 414, driven gear; 412, inner groove; 415, back box cover; 416, fixing hole; 417, pointer; 421, driving shaft; 422, front section of driven shaft; 423, rear section of driven shaft; 424, turntable; 425, scale; 426, pull ring; 427, handle; 428, ring groove;

[0044] 500, holding structure; 600, locking structure; 610, locking plate; 620, locking groove. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] Embodiment 1:

[0049] This embodiment provides a turnover rack for filling liquefied gas, which has the following technical features.

[0050] See also Figure 1-9 A turnover rack for filling liquefied gas includes a turnover rack 300, and the turnover rack 300 includes:

[0051] A base 350 is disposed above the filling scale platform 200, and a support frame 310 is disposed above the base 350;

[0052] The rotating member 301 is rotatably connected to the support frame 310. The rotating member 301 is an arc-shaped plate or an arc-shaped frame composed of a steel frame. A top plate 321 and a bottom plate 331 are respectively provided at both ends of the rotating member 301. The rotating member 301 is used to place the liquefied gas cylinder 100.

[0053] The clamping structure 500 is slidably connected to the side of the rotating member 301 and is used to clamp the liquefied gas cylinder 100 located inside the rotating member 301. Each clamping structure 500 is arc-shaped.

[0054] The locking structure 600 includes a locking plate 610 and a locking groove 620. The locking plate 610 is arranged on the rotating member 301, and the locking groove 620 is arranged on the support frame 310 or the base 350. The locking plate 610 is used to be stuck in the locking groove 620 to lock the rotating member 301 so that it cannot rotate.

[0055] It should be noted that the gas inlet 110 in the liquefied gas cylinder 100 is located at the bottom or top of the cylinder.

[0056] In an optional embodiment, the rotating member 301 includes two fixed parts 320 and a sliding part 330 that are slidably connected together. The middle position of the fixed part 320 is rotatably connected to the support frame 310. The top plate 321 is arranged at the top of the fixed part 320, and the bottom plate 331 is arranged at the bottom of the sliding part 330. The lower half of the fixed part 320 and the upper half of the sliding part 330 are slidably connected together through a sliding structure 340; the sliding connection between the fixed part 320 and the sliding part 330 is provided with a lifting structure 400, and the lifting structure 400 includes: two racks 411, which are vertically arranged on the left and right sides, and the teeth of the two racks 411 are arranged inwardly; two driving gears 413 and driven gears 414 of the same size are arranged on the two At the position between the racks 411, the driving gear 413 and the driven gear 414 are respectively meshed with the teeth of the racks 411 on both sides, and the teeth of the driving gear 413 and the driven gear 414 are also meshed with each other. The rotating shafts of the driving gear 413 and the driven gear 414 are fixed on the same plane and rise and fall synchronously; the turntable 424, a fixedly connected driving shaft 421 is set at the middle axis of the driving gear 413, and the other end of the driving shaft 421 is fixedly connected to the turntable 424; when the turntable 424 drives the driving gear 413 to rotate, the driving gear 413 and the meshed rack 411 move relatively up and down, the driving gear 413 drives the driven gear 414 to rotate in the opposite direction, and the driven gear 414 drives the meshed rack 411 to rise and fall in the same direction as the driving gear 413.

[0057] In an optional embodiment, the driving gear 413, the driven gear 414 and the two racks 411 are arranged in the back box 410, and the two racks 411 are fixed on the two side walls in the back box 410. The back box 410 is provided with an inner groove 412 at the rotating shaft of the driving gear 413 and the driven gear 414. The inner groove 412 is located on the side of the back box 410 facing away from the turntable 424. The rotating shafts of the driving gear 413 and the driven gear 414 slide in the inner groove 412. The back box 410 is provided with an inner groove 412 at the rotating shaft of the driving gear 413 and the driven gear 414. A back box cover plate 415 is provided on one side of the rotation axis direction of the wheel 414, and two sliding grooves are provided on the back box cover plate 415 for sliding of the rotation axis; a driven shaft front section 422 sliding along the central axis direction is provided at the central axis of the driven gear 414, and a driven shaft rear section 423 is connected to the end of the driven shaft front section 422 away from the driven gear 414, and the end of the driven shaft rear section 423 is stuck in the annular groove 428 on the back side of the turntable 424 and slides, and when the turntable 424 is pulled inward or outward, the driven shaft rear section 423 and the driven shaft front section 422 are driven to move.

[0058] In an optional embodiment, the width of the slide groove corresponding to the rotating shaft of the driven gear 414 on the back box cover 415 is greater than the diameter of the rear section 423 of the driven shaft and smaller than the diameter of the front section 422 of the driven shaft, and a plurality of fixing holes 416 are evenly arrayed on the slide groove, and the diameter of the fixing holes 416 is greater than the diameter of the front section 422 of the driven shaft.

[0059] In an optional embodiment, the turntable 424 is provided with scales 425 evenly distributed on the circumference, and the rotating member 301 is provided with a pointer 417 on the side wall close to the turntable 424. The distance between two adjacent fixed holes 416 is equal to the displacement generated by the driving gear 413 or the driven gear 414 and the rack 411 after rotating the angle between two adjacent scales 425. The turntable 424 is also provided with a handle 427 and a pull ring 426.

[0060] In an optional embodiment, the back box 410 is fixed on the back of the fixed part 320, the driving shaft 421 and the rear section 423 of the driven shaft are fixed on the sliding part 330, or the back box 410 is fixed on the sliding part 330, and the driving shaft 421 and the rear section 423 of the driven shaft are fixed on the fixed part 320.

[0061] In an optional embodiment, the locking plate 610 is slidably connected to the top of the fixing portion 320 , and the locking groove 620 is located directly below the locking plate 610 after the rotating member 301 is flipped 180 degrees.

[0062] In an optional embodiment, at least two symmetrical sliding structures 340 are arranged between the fixed part 320 and the sliding part 330, and any sliding structure 340 includes a vertical sliding groove and a plurality of protrusions, wherein the vertical sliding groove is arranged on the sliding part 330, and the protrusion is arranged on the back side of the fixed part 320. The protrusion is stuck in the vertical sliding groove and slides, and a cap connected by a thread is arranged on the top of the protrusion.

[0063] In an optional embodiment, reinforcing ribs are provided between the top plate 321 and the fixing portion 320 , and between the bottom plate 331 and the sliding portion 330 .

[0064] Working principle: Figure 7-9 As shown, Figure 7 The liquefied gas cylinder 100 is placed on the bottom plate 331. At this time, the bottom plate 331 is located on the top of the base 350. There is no need to lift the liquefied gas cylinder 100, which is easy and labor-saving. The liquefied gas cylinder 100 is then clamped by the sliding clamping structure 500, and the turntable 424 is rotated to drive the driving gear 413 to rotate, so that the sliding part 330 is lifted under the transmission cooperation of the driving gear 413, the driven gear 414 and the rack 411, so that the top of the liquefied gas cylinder 100 is pressed against the bottom of the top plate 321, and the turntable 424 is pulled outward to make the front section 422 of the driven shaft stuck in the fixing hole 416, thereby locking the lifting structure 400 so that it cannot move, and finally the entire rotating part 301 is rotated to make the liquefied gas cylinder 100 flip 180 degrees, and after the flip is completed, the locking plate 610 is stuck in the locking groove 620 to lock it.

[0065] In summary, the tipping frame for filling liquefied gas is configured by setting a tipping frame 300 that can be flipped above the filling scale 200. After the liquefied gas cylinder 100 is placed in the rotating part 301, it is clamped by the clamping structure 500, and after rotating 180 degrees, the locking plate 610 is inserted into the locking groove 620 to lock it, and then filling is carried out, thereby achieving the purpose of having both bottom-entry and top-entry filling methods under the condition of only one liquid phase port.

[0066] The flip frame for filling liquefied gas is provided with a rotating part 301 as two relatively sliding fixed parts 320 and a supporting frame 310. The front sliding part 330 slides down so that the bottom plate 331 is located on the upper surface of the base 350, so that the liquefied gas cylinder 100 can be placed above the bottom plate 331. The turntable 424 in the lifting structure 400 is rotated to drive the driving gear 413, the driven gear 414 and the rack 411 to cooperate in transmission, so that the sliding part 330 rises to the position where the top of the liquefied gas cylinder 100 is against the lower surface of the top plate 321. The top plate 321 and the bottom plate 331 clamp the liquefied gas cylinder 100 at the upper and lower ends, so that the flip frame 300 can adapt to liquefied gas cylinders 100 of different heights.

[0067] The flip frame for filling liquefied gas is provided with a fixing hole 416 on the slide groove of the back box cover 415 on one side of the back box 410. After the lifting is completed, the front section 422 of the driven shaft is stuck in the fixing hole 416 by pulling out the turntable 424 to complete the locking.

[0068] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A turnover rack for filling liquefied gas, comprising a turnover rack (300), characterized in that: The turning frame (300) comprises: A base (350) is arranged above the filling scale platform (200), and a support frame (310) is arranged above the base (350); A rotating member (301) is rotatably connected to the support frame (310); the rotating member (301) is an arc-shaped plate or an arc-shaped frame composed of a steel frame; a top plate (321) and a bottom plate (331) are respectively provided at two ends of the rotating member (301); and a liquefied gas cylinder (100) is placed inside the rotating member (301); A clamping structure (500) is slidably connected to a side of the rotating member (301) and is used to clamp the liquefied gas cylinder (100) located inside the rotating member (301); each clamping structure (500) is arc-shaped; The locking structure (600) comprises a locking plate (610) and a locking groove (620), wherein the locking plate (610) is arranged on the rotating member (301), and the locking groove (620) is arranged on the support frame (310) or the base (350), and the locking plate (610) is used to be stuck in the locking groove (620) to lock the rotating member (301) so that it cannot rotate.

2. The tipping rack for filling liquefied gas according to claim 1, characterized in that: The rotating member (301) comprises two fixed parts (320) and a sliding part (330) which are slidably connected together. The middle position of the fixed part (320) is rotatably connected to the support frame (310). The top plate (321) is arranged at the top end of the fixed part (320), and the bottom plate (331) is arranged at the bottom end of the sliding part (330). The lower half of the fixed part (320) and the upper half of the sliding part (330) are slidably connected together via a sliding structure (340). The sliding connection between the fixed part (320) and the sliding part (330) is provided with a lifting structure (400). The lifting structure (400) comprises: Two racks (411) are vertically arranged on the left and right sides, and the teeth of the two racks (411) are arranged inwardly; Two driving gears (413) and driven gears (414) of the same size are arranged between the two racks (411), the driving gear (413) and the driven gear (414) are respectively meshed with the teeth of the racks (411) on both sides, and the teeth of the driving gear (413) and the driven gear (414) are also meshed with each other, and the rotating shafts of the driving gear (413) and the driven gear (414) are fixed on the same plane and rise and fall synchronously; A rotating disk (424) is provided at the center axis of the driving gear (413) with a fixedly connected driving shaft (421), and the other end of the driving shaft (421) is fixedly connected to the rotating disk (424).

3. The tipping rack for filling liquefied gas according to claim 2, characterized in that: The driving gear (413), the driven gear (414) and the two racks (411) are arranged in the back box (410); the two racks (411) are fixed on two side walls in the back box (410); the back box (410) is provided with an inner groove (412) at the rotating shafts of the driving gear (413) and the driven gear (414); the inner groove (412) is located on the side of the back box (410) facing away from the turntable (424); the rotating shafts of the driving gear (413) and the driven gear (414) slide in the inner groove (412); the back box (410) is provided with a back box cover plate (415) on one side of the rotating shaft direction of the driving gear (413) and the driven gear (414); the back box cover plate (415) is provided with two sliding grooves for sliding the rotating shaft; A driven shaft front section (422) is arranged at the center axis of the driven gear (414) and slides along the center axis direction; an end of the driven shaft front section (422) away from the driven gear (414) is connected to a driven shaft rear section (423); an end of the driven shaft rear section (423) is stuck in a ring groove (428) on the back of the rotating disk (424) and slides; when the rotating disk (424) is pulled inward or outward, the driven shaft rear section (423) and the driven shaft front section (422) are driven to move.

4. The tipping rack for filling liquefied gas according to claim 3, characterized in that: The width of the slide groove on the back box cover (415) corresponding to the rotating shaft of the driven gear (414) is greater than the diameter of the rear section (423) of the driven shaft and smaller than the diameter of the front section (422) of the driven shaft. A plurality of fixing holes (416) are evenly arranged in an array on the slide groove. The diameter of the fixing holes (416) is greater than the diameter of the front section (422) of the driven shaft.

5. The tipping rack for filling liquefied gas according to claim 4, characterized in that: The rotating disk (424) is provided with scales (425) evenly distributed around the circumference, and the rotating member (301) is provided with a pointer (417) on a side wall close to the rotating disk (424). The distance between two adjacent fixing holes (416) is equal to the displacement generated by the driving gear (413) or the driven gear (414) and the rack (411) after the driving gear (413) or the driven gear (414) rotates by the angle between the two adjacent scales (425). The rotating disk (424) is also provided with a rotating handle (427) and a pull ring (426).

6. The tipping rack for filling liquefied gas according to claim 5, characterized in that: The back box (410) is fixed to the back of the fixed part (320), and the driving shaft (421) and the rear section of the driven shaft (423) are fixed to the sliding part (330); or, the back box (410) is fixed to the sliding part (330), and the driving shaft (421) and the rear section of the driven shaft (423) are fixed to the fixed part (320).

7. The tipping rack for filling liquefied gas according to claim 2, characterized in that: The locking plate (610) is slidably connected to the top of the fixing portion (320), and the locking groove (620) is located directly below the locking plate (610) after the rotating member (301) is turned 180 degrees.

8. The tipping rack for filling liquefied gas according to claim 2, characterized in that: At least two mutually symmetrical sliding structures (340) are arranged between the fixed part (320) and the sliding part (330), and any sliding structure (340) includes a vertical sliding groove and a plurality of protrusions, wherein the vertical sliding groove is arranged on the sliding part (330), and the protrusion is arranged on the back of the fixed part (320), the protrusion is stuck in the vertical sliding groove and slides, and a cover cap connected by a thread is arranged on the top of the protrusion.

9. The tipping rack for filling liquefied gas according to claim 2, characterized in that: Reinforcing ribs are provided between the top plate (321) and the fixing portion (320), and between the bottom plate (331) and the sliding portion (330).

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