Tray for placing ultrasonic gas meter drainage tube

Abstract

The utility model relates to a tray for placing a drainage tube of an ultrasonic gas meter. The tray comprises a top plate and side plates arranged on the periphery of the top plate, an assembling cavity is formed between the top plate and the side plate, a plurality of rows of containing cavities are formed in the lower surface of the top plate, the containing cavities are embedded in the assembling cavity, and each row of containing cavities comprises a plurality of containing cavity grooves which are formed in parallel and correspond to the drainage pipes; the drainage tube is placed in the cavity groove; the cavity containing groove comprises a pipe body positioning cavity and a pipe body limiting groove; the tray is simple in structure, uniform stress of the bottom of the tube body at the bottom of the drainage tube is guaranteed, the gravity center of the drainage tube is stable, the stability of the drainage tube installed on the tray is improved, the stability of follow-up installation work of the drainage tube is further improved, and the tray is high in attractiveness after being manufactured.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas meter accessories, and in particular relates to a tray for placing a drainage tube of an ultrasonic gas meter. Background Art

[0002] The drainage tube of the ultrasonic gas meter is conventionally connected between the metering module and the gas outlet. It is the core metering component of the ultrasonic gas meter. During the transfer or assembly process, the drainage tube of the ultrasonic gas meter is packaged on a tray and transferred in batches. This requires a specific pallet to be used for packaging the drainage tube.

[0003] The tray used to package the drainage tube of the ultrasonic gas meter is usually a blister tray (i.e., a plastic inner tray) which is easy to produce, low in cost, light in weight, and convenient to use. The tray base of the blister tray has a placement cavity surrounded by a skirt of an inner hollow structure and capable of placing the drainage tube of the ultrasonic gas meter. The drainage tube is placed in the placement cavity on the tray base, which protects, beautifies, and facilitates the transfer of the drainage tube.

[0004] Defects and shortcomings of the existing technology:

[0005] Traditional trays only consider the positioning structure of the drainage tube, but do not consider the enhanced protection structure of the blister tray. Their structural strength is low and their force-bearing performance is poor. In the event of an accidental collision, due to the inaccurate positioning of the surroundings of a single drainage tube, the product is prone to shaking, collapse, and collision, which can easily affect the quality of the product.

[0006] In view of the above technical problems, improvements need to be made. Utility Model Content

[0007] The utility model aims to overcome the defects in the above-mentioned prior art and provides a tray for placing the drainage tube of an ultrasonic gas meter, which has a simple and reasonable structure, accurately positions the drainage tube around, and can avoid problems such as product shaking, collapse and mutual collision.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is: a tray for placing the drainage tube of an ultrasonic gas meter, comprising a top plate and side plates arranged around the top plate; an assembly cavity is formed between the top plate and the side plates, and a plurality of rows of accommodating cavities are arranged on the lower surface of the top plate, and the accommodating cavities are embedded in the assembly cavity, and each row of accommodating cavities includes a plurality of accommodating cavity grooves corresponding to the drainage tubes arranged in parallel; the drainage tube is placed in the accommodating cavity grooves; the accommodating cavity grooves include a tube body positioning cavity and a tube body limiting groove; wherein the tube body positioning cavity is used to place the drainage tube, and the tube body limiting groove is used to limit the placed drainage tube, and the tube body positioning cavity and the tube body limiting groove are connected with the connecting groove; the side plates are arranged obliquely along the height direction of the tray.

[0009] As a preferred embodiment of the utility model, the tube body positioning cavity includes a tube bottom positioning cavity, a tube middle positioning cavity and a tube upper positioning cavity which are arranged in sequence; wherein, the tube bottom positioning cavity is arranged at the center of the bottom of the cavity groove and extends vertically upward to position the bottom of the tube body, and the tube middle positioning cavity is coaxially arranged at the upper end of the tube bottom positioning cavity to be used for positioning the middle part of the tube body when in use; the inner diameter of the tube middle positioning cavity is larger than the inner diameter of the tube bottom positioning cavity, and the tube upper positioning cavity is coaxially arranged at the upper end of the tube middle positioning cavity to be used for placing the upper part of the tube body when in use; the inner diameter of the tube upper positioning cavity is larger than the inner diameter of the tube upper positioning cavity, and the tube upper positioning cavity is arranged parallel to the connecting groove.

[0010] As a preferred embodiment of the utility model, the tube body limiting groove also includes a tube body bracket limiting groove and a tube body connecting plate limiting groove; the tube body bracket limiting groove is located in the cavity groove and is symmetrically arranged along the transverse direction of the cavity groove, and the tube body bracket limiting groove is penetrated through the side walls of the positioning cavity on the tube and the positioning cavity in the tube, and is used to clamp the tube body bracket.

[0011] As a preferred embodiment of the utility model, the tube body connecting plate limiting groove is located in the cavity groove and is symmetrically arranged along the longitudinal direction of the cavity groove. The bottom of the tube body connecting plate limiting groove is arranged on the side wall of the positioning cavity in the tube. The top of the tube body connecting plate limiting groove is formed with a shelf groove for placing the tube body connecting plate. The shelf groove and the tube body connecting plate limiting groove are in a step-like structure. One end of the shelf groove is against the side wall of the cavity groove, and the other end of the shelf groove is connected to the positioning cavity on the tube.

[0012] As a preferred embodiment of the present invention, the width of the shelf groove is greater than the width of the limiting groove of the tube body connecting plate.

[0013] As a preferred embodiment of the present invention, the inclination angle between the side plate and the top plate is 95° to 105°.

[0014] As a preferred embodiment of the utility model, a plurality of inner grooves are formed on the surrounding side panels, and the plurality of inner grooves are equidistantly arranged along the length direction of the side panels, the tops of the inner grooves extend upward, and the bottoms of the inner grooves form support seats on the inner sides of the side panels, and a spacing is left between the support seats and the bottoms of the side panels. When two pallets are stacked, the support seats are placed on the top panel to connect the two pallets.

[0015] As a preferred embodiment of the present invention, the width of the inner groove gradually increases from top to bottom, and an arc structure is formed between the two sides of the inner groove and the side panels.

[0016] As a preferred embodiment of the utility model, a plurality of guide grooves are symmetrically arranged on both sides of the longitudinal side panels of the pallet, the guide grooves are located at the outer ends between the two cavity grooves, the tops of the guide grooves extend upward, and the bottoms of the guide grooves are located on the side panels; the height of the guide grooves is greater than the height between the support seat and the bottom of the side panels.

[0017] As a preferred embodiment of the present invention, a fool-proof notch is formed at a connection point of one of the adjacent side panels, and the fool-proof notch is arranged along the height direction of the side panel.

[0018] The beneficial effects of the utility model are:

[0019] 1. The utility model has a simple structure. By arranging a tube bottom positioning cavity, a tube middle positioning cavity and a tube upper positioning cavity in the tube body positioning cavity, the drainage tube can be fixed through the tube bottom positioning cavity, the tube middle positioning cavity and the tube upper positioning cavity to achieve a stable connection between the drainage tube and the tube body positioning cavity. The tube bottom positioning cavity is arranged at the bottom center of the cavity groove and extends vertically upward to ensure that the force on the bottom of the tube body at the bottom of the drainage tube is uniform, so that the center of gravity of the drainage tube is stable, the stability of the drainage tube installation on the tray is improved, and the stability of the subsequent installation work of the drainage tube is further improved. The tray has a high degree of aesthetics after manufacturing.

[0020] 2. The utility model is cleverly designed. A plurality of guide grooves are symmetrically arranged on both sides of the longitudinal side panels of the pallet. The guide grooves are located at the outer ends between the two cavities. The tops of the guide grooves extend upward, and the bottoms of the guide grooves are located on the side panels. The height of the guide grooves is greater than the height between the support base and the bottom of the side panels. The guide grooves are arranged so that when two pallets are stacked, a spacing is formed between the bottom of the side panels of the upper pallet and the bottom of the guide grooves of the lower pallet, which is convenient for the operator to carry.

[0021] 3. In the utility model, multiple cavities are equidistantly arranged on the pallet, and a spacing is left between the upper part of the tube body and the side wall of the cavity to form a grasping space for the robot claws; the grasping space can facilitate the grasping of the robot, and the drainage tube can be accurately positioned in the material pallet by the robot, and the quality of long-distance transportation and turnover of the drainage tube can also be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a diagram showing the drainage tube of the utility model embodiment being assembled on a tray in use;

[0023] Figure 2 This is a top view of the drainage tube of an embodiment of the utility model assembled on a tray;

[0024] Figure 3 This is a schematic diagram of the structure of the drainage tube of an embodiment of the utility model;

[0025] Figure 4 A diagram showing a tray in use according to an embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of a tray according to an embodiment of the utility model;

[0027] Figure 6 For the utility model embodiment Figure 4 A partial enlarged view of the A direction;

[0028] Figure 7 This is a front view of a tray according to an embodiment of the utility model;

[0029] Figure 8 A side view of a tray according to an embodiment of the present utility model;

[0030] Fig. 9 A top view of a tray according to an embodiment of the present utility model;

[0031] The figure numerals are as follows: top plate 1, side plate 2, assembly cavity 3, connecting groove 4, arc structure 5, inner groove 6, support seat 7, fool-proof notch 8, guide groove 9, accommodating cavity 10, accommodating cavity groove 11, tube body positioning cavity 12, tube bottom positioning cavity 12-1, tube middle positioning cavity 12-2, tube upper positioning cavity 12-3, tube body limiting groove 13, tube body bracket limiting groove 13-1, tube body connecting plate limiting groove 13-2, shelf groove 13-3, drainage tube 40, tube body bottom 41, tube body middle 42, tube body upper 43, tube body bracket 44, tube body connecting plate 45. DETAILED DESCRIPTION

[0032] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0033] Example:

[0034] like Figure 1-3 The figure shows the state of the tray used to place the drainage tube in this scheme, where: Figure 1 This is a diagram showing the drainage tube of the utility model embodiment being assembled on a tray in use; Figure 2 This is a top view of the drainage tube of an embodiment of the utility model assembled on a tray; Figure 3 Schematic diagram of the structure of the drainage tube of an embodiment of the utility model; a tray for placing the drainage tube of an ultrasonic gas meter, comprising a top plate 1 and side plates 2 arranged around the top plate 1; an assembly cavity 3 is formed between the top plate 1 and the side plates 2, a plurality of rows of accommodating cavities 10 are arranged on the lower surface of the top plate 1, the accommodating cavities 10 are embedded in the assembly cavity 3, each row of accommodating cavities 10 includes a plurality of cavity grooves 11 arranged in parallel and corresponding to the drainage tube 40; the drainage tube 40 is placed in the cavity groove 11.

[0035] Alternatively, if Figure 1-2As shown, a plurality of rows of accommodating cavities 10 are arranged on the lower surface of the top plate 1, and the accommodating cavities 10 are embedded in the assembly cavity 3, and the drainage tube 40 is placed in the accommodating cavity groove 11. On the one hand, the accommodating cavity groove 11 can protect the drainage tube 40. When the pallet is hit, the accommodating cavity groove 11 collapses to absorb energy, and the pallet can absorb part of the impact force by its own strength and rigidity, thereby reducing the damage to the drainage tube 40 caused by the impact force; on the other hand, the accommodating cavity groove 11 provides an installation space for the drainage tube 40 and limits the maximum moving position of the drainage tube 40, thereby ensuring that when the pallet is hit, the drainage tube 40 will not be dislocated and moved to other parts of the pallet to cause damage to other parts.

[0036] like Figure 4-5 As shown, the cavity groove 11 includes a tube body positioning cavity 12 and a tube body limiting groove 13; wherein, the tube body positioning cavity 12 is used to place the drainage tube 40, and the tube body limiting groove 13 is used to limit the drainage tube 40 after placement, and the tube body positioning cavity 12 and the tube body limiting groove 13 are connected to the connecting groove 4.

[0037] like Fig. 9 As shown, it can be known from the above structure that the tray of the drainage tube in the embodiment of the utility model places the drainage tube 40 in the cavity groove 11 by arranging a plurality of cavity grooves 11 in the tray, and the tube body positioning cavity 12 and the tube body limiting groove 13 limit the circumference of the drainage tube 40 to ensure that the position of the drainage tube 40 in the cavity groove 11 is stable, and prevent the drainage tube 40 from sliding back and forth in the cavity groove 11 during transportation or movement.

[0038] like Figure 6 As shown, the tube body positioning cavity 12 includes a tube bottom positioning cavity 12-1, a tube middle positioning cavity 12-2 and a tube upper positioning cavity 12-3 which are arranged in sequence; wherein, the tube bottom positioning cavity 12-1 is arranged at the bottom center of the cavity groove 11 and extends vertically upward to position the tube body bottom 41, and the tube middle positioning cavity 12-2 is coaxially arranged at the upper end of the tube bottom positioning cavity 12-1 to be used for positioning the tube body middle part 42 when in use; the inner diameter of the tube middle positioning cavity 12-2 is larger than the inner diameter of the tube bottom positioning cavity 12-1, and the tube upper positioning cavity 12-3 is coaxially arranged at the upper end of the tube middle positioning cavity 12-2 to be used for placing the tube body upper part 43 when in use; the inner diameter of the tube upper positioning cavity 12-3 is larger than the inner diameter of the tube upper positioning cavity 12-3, and the tube upper positioning cavity 12-3 is arranged parallel to the connecting groove 4.

[0039] By setting a tube bottom positioning cavity 12-1, a tube middle positioning cavity 12-2 and a tube upper positioning cavity 12-3 in the tube body positioning cavity 12, the drainage tube 40 can be fixed by the tube bottom positioning cavity 12-1, the tube middle positioning cavity 12-2 and the tube upper positioning cavity 12-3, so as to realize a stable connection between the drainage tube 40 and the tube body positioning cavity 12, and the tube bottom positioning cavity 12-1 is set at the bottom center of the cavity groove 11 and extends vertically upward, so as to ensure that the force on the tube body bottom 41 at the bottom of the drainage tube 40 is uniform, so that the center of gravity of the drainage tube 40 is stable, the stability of the drainage tube 40 installed on the tray is improved, and the stability of the subsequent installation work of the drainage tube 40 is further improved, and the tray has a high degree of aesthetics after manufacturing.

[0040] It can be understood that the tray of the present application has sufficient strength and high stability, and will not shake during the use and assembly process, and the drainage tube 40 will not be subjected to strong vibrations, thereby improving the safety of the drainage tube 40.

[0041] Multiple cavity grooves 11 are equidistantly arranged on the pallet, and a spacing is left between the upper part 43 of the tube body and the side wall of the cavity groove 11 to form a grasping space for the robot claw; the grasping space can facilitate the grasping of the robot, and the drainage tube 40 can be accurately positioned in the material pallet by the robot, and the quality of long-distance transportation and turnover of the drainage tube 40 can also be achieved.

[0042] At the same time, by placing the drainage tube 40 in the cavity groove 11, shaking during movement is avoided, and the top of the drainage tube 40 and the top plate 1 are located on the same horizontal plane, so that when adjacent pallets are stacked, the contact area between the two is increased, and the stability is better.

[0043] like Figure 6 As shown, the tube body limiting groove 13 also includes a tube body bracket limiting groove 13-1 and a tube body connecting plate limiting groove 13-2; the tube body bracket limiting groove 13-1 is located in the cavity groove 11 and is symmetrically arranged along the transverse direction of the cavity groove 11. The tube body bracket limiting groove 13-1 passes through the side walls of the positioning cavity 12-3 on the tube and the positioning cavity 12-2 in the tube, and is used to clamp the tube body bracket 44.

[0044] The tube body connecting plate limiting groove 13-2 is located in the cavity groove 11 and is symmetrically arranged along the longitudinal direction of the cavity groove 11. The bottom of the tube body connecting plate limiting groove 13-2 is arranged on the side wall of the positioning cavity 12-2 in the tube. The top of the tube body connecting plate limiting groove 13-2 is formed with a shelf groove 13-3 for shelf the tube body connecting plate 45. The shelf groove 13-3 and the tube body connecting plate limiting groove 13-2 are in a step-like structure. One end of the shelf groove 13-3 abuts against the side wall of the cavity groove 11, and the other end of the shelf groove 13-3 is connected to the positioning cavity 12-3 on the tube.

[0045] Specifically, the tube body bracket limiting groove 13-1 and the tube body connecting plate limiting groove 13-2 have a certain limiting effect relative to the drainage tube 40. On the one hand, they ensure the stability of the placement of the drainage tube 40. After the drainage tube 40 is placed in the tube body bracket limiting groove 13-1 and the tube body connecting plate limiting groove 13-2, it is easier to clamp it by a robot arm, thereby improving production efficiency. On the other hand, the shelf groove 13-3 can play a guiding role, and the shelf tube body connecting plate of the drainage tube 40 can be placed in the cavity groove 11 along the shelf groove 13-3.

[0046] The width of the shelf groove 13 - 3 is greater than the width of the tube body connecting plate limiting groove 13 - 2 ; the shelf groove 13 - 3 is used to shelf the tube body connecting plate 45 .

[0047] The side panels 2 are arranged obliquely along the height direction of the pallet, and the inclination angle between the side panels 2 and the top panel 1 is 95° to 105°; in this embodiment, the inclination angle between the side panels 2 and the top panel 1 is 95°, and the side panels 2 on all sides are arranged obliquely, so that the force-bearing area of ​​the base and the shelf of the entire pallet is larger, and the placement is more stable.

[0048] like Figure 4 , Figure 5 and Figure 7 As shown, a plurality of inner grooves 6 are formed on the side panels 2 on all sides, and the plurality of inner grooves 6 are equidistantly arranged along the length direction of the side panels 2, the tops of the inner grooves 6 extend upward, and the bottoms of the inner grooves 6 form support seats 7 on the inner sides of the side panels 2, and a spacing is left between the support seats 7 and the bottoms of the side panels 2. When two pallets are stacked, the support seats 7 are placed on the top panel 1 to connect the two pallets. The utility model provides a plurality of inner grooves 6 on the side panels 2 on all sides, and a support seat 7 is formed at the bottoms of the inner grooves 6, which can both reduce the weight of the pallet and ensure a certain supporting strength.

[0049] like Figure 7-8 As shown, the width of the inner groove 6 gradually increases from top to bottom, and an arc structure 5 is formed between the two sides of the inner groove 6 and the side plate 2; optionally, the width of the inner groove 6 gradually increases from top to bottom; because the inner groove 6 is embedded in the side plate 2, the inner groove 6 forms a support seat 7 inside the side plate 2, so in order to ensure the support strength of the support seat 7, and at the same time, to maintain a certain height with the inclined side plate 2, an arc structure 5 is formed between the two sides of the inner groove 6 and the side plate 2. Prepare for the subsequent stacking positioning and fixing of the two pallets, and the gradually increasing height of the inner groove 6 can ensure the structural strength of the support seat 7, so that the stability and safety of the two pallets when stacked.

[0050] A connecting groove 4 is provided between two transversely adjacent accommodating cavity grooves 11 in each row of accommodating cavities 10 , and the connecting groove 4 passes through the side plate 2 ; the height of the connecting groove 4 is 1 / 2 to 1 / 3 of the height of the side plate 2 ; specifically, the height of the connecting groove 4 is 1 / 3 of the height of the side plate 2 .

[0051] In some embodiments of the present invention, Figure 4 , Figure 5 and Figure 7 As shown, a plurality of connecting grooves 4 are provided on the side plate 2, and the plurality of connecting grooves 4 are equidistantly arranged on the side plate 2. The connecting grooves 4 can reduce the weight of the pallet and realize lightweight of the pallet. In addition, by providing the connecting grooves 4, the materials used in manufacturing the pallet can be reduced, thereby reducing the production cost and improving the production efficiency.

[0052] A plurality of guide grooves 9 are symmetrically arranged on both sides of the longitudinal side panels 2 of the pallet, and the guide grooves 9 are located at the outer ends between the two cavities 11, the tops of the guide grooves 9 extend upward, and the bottoms of the guide grooves 9 are located on the side panels 2; the height of the guide grooves 9 is greater than the height between the support seat 7 and the bottom of the side panels 2; the guide grooves 9 are arranged so that when two pallets are stacked, a spacing is formed between the bottom of the side panels 2 of the upper pallet and the bottom of the guide grooves 9 of the lower pallet, which is convenient for the operator to carry.

[0053] like Figure 4 and Figure 6 As shown, a foolproof notch 8 is formed at the connection of one of the adjacent side panels 2, and the foolproof notch 8 is arranged along the height direction of the side panel 2. In this embodiment, the structural design of the foolproof notch 8 prevents the trays from being stacked incorrectly, thereby ensuring safety in use.

[0054] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0055] Although this article uses more of the figure marks: top plate 1, side plate 2, assembly cavity 3, connecting groove 4, arc structure 5, inner groove 6, support seat 7, fool-proof notch 8, guide groove 9, accommodating cavity 10, accommodating cavity groove 11, tube body positioning cavity 12, tube bottom positioning cavity 12-1, tube middle positioning cavity 12-2, tube upper positioning cavity 12-3, tube body limiting groove 13, tube body bracket limiting groove 13-1, tube body connecting plate limiting groove 13-2, shelf groove 13-3, drainage tube 40, tube body bottom 41, tube body middle 42, tube body upper 43, tube body bracket 44, tube body connecting plate 45 and other terms, but does not exclude the possibility of using other terms; these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A tray for placing the drainage tube of an ultrasonic gas meter, characterized in that: The tray comprises a top plate (1) and side plates (2) arranged around the top plate (1); an assembly cavity (3) is formed between the top plate (1) and the side plates (2); a plurality of rows of accommodating cavities (10) are arranged on the lower surface of the top plate (1); the accommodating cavities (10) are embedded in the assembly cavity (3); each row of accommodating cavities (10) comprises a plurality of accommodating cavity grooves (11) arranged in parallel and corresponding to the drainage tubes (40); the drainage tubes (40) are placed in the accommodating cavity grooves (11); the accommodating cavity grooves (11) comprise a tube body positioning cavity (12) and a tube body limiting groove (13); wherein the tube body positioning cavity (12) is used for placing the drainage tube (40), and the tube body limiting groove (13) is used for limiting the position of the placed drainage tube (40); the tube body positioning cavity (12) and the tube body limiting groove (13) are connected to the connecting groove (4); and the side plates (2) are arranged obliquely along the height direction of the tray.

2. The tray for placing the ultrasonic gas meter drainage tube according to claim 1, characterized in that: The tube body positioning cavity (12) comprises a tube bottom positioning cavity (12-1), a tube middle positioning cavity (12-2) and a tube upper positioning cavity (12-3) which are arranged in sequence; wherein the tube bottom positioning cavity (12-1) is arranged at the bottom center of the cavity groove (11) and extends vertically upwards to position the tube body bottom (41); the tube middle positioning cavity (12-2) is coaxially arranged at the upper end of the tube bottom positioning cavity (12-1) to position the middle part (42) of the tube body when in use; the inner diameter of the tube middle positioning cavity (12-2) is larger than the inner diameter of the tube bottom positioning cavity (12-1); the tube upper positioning cavity (12-3) is coaxially arranged at the upper end of the tube middle positioning cavity (12-2) to rest the tube body upper part (43) when in use; the inner diameter of the tube upper positioning cavity (12-3) is larger than the inner diameter of the tube upper positioning cavity (12-3); and the tube upper positioning cavity (12-3) is arranged parallel to the connecting groove (4).

3. The tray for placing the ultrasonic gas meter drainage tube according to claim 1, characterized in that: The tube body limiting groove (13) further comprises a tube body support limiting groove (13-1) and a tube body connecting plate limiting groove (13-2); the tube body support limiting groove (13-1) is located in the cavity groove (11) and is symmetrically arranged along the transverse direction of the cavity groove (11); the tube body support limiting groove (13-1) is penetrated through the side walls of the upper tube positioning cavity (12-3) and the middle tube positioning cavity (12-2) and is used to clamp the tube body support (44).

4. The tray for placing the ultrasonic gas meter drainage tube according to claim 3, characterized in that: The tube body connecting plate limiting groove (13-2) is located in the cavity groove (11) and is symmetrically arranged along the longitudinal direction of the cavity groove (11); the bottom of the tube body connecting plate limiting groove (13-2) is arranged on the side wall of the positioning cavity (12-2) in the tube; the top of the tube body connecting plate limiting groove (13-2) is formed with a resting groove (13-3) for resting the tube body connecting plate (45); the resting groove (13-3) and the tube body connecting plate limiting groove (13-2) are in a stepped structure; one end of the resting groove (13-3) abuts against the side wall of the cavity groove (11), and the other end of the resting groove (13-3) is connected to the positioning cavity (12-3) on the tube.

5. The tray for placing the ultrasonic gas meter drainage tube according to claim 4, characterized in that: The width of the shelf groove (13-3) is greater than the width of the limiting groove (13-2) of the tube body connecting plate.

6. The tray for placing the ultrasonic gas meter drainage tube according to claim 1, characterized in that: The inclination angle between the side plate (2) and the top plate (1) is 95° to 105°.

7. The tray for placing the ultrasonic gas meter drainage tube according to claim 6, characterized in that: A plurality of inner grooves (6) are formed on the side panels (2) on all sides. The plurality of inner grooves (6) are arranged at equal intervals along the length direction of the side panels (2). The top of the inner groove (6) extends upward. The bottom of the inner groove (6) forms a support seat (7) on the inner side of the side panel (2). A gap is left between the support seat (7) and the bottom of the side panel (2). When two pallets are stacked, the support seat (7) is placed on the top panel (1) to connect the two pallets.

8. The tray for placing the ultrasonic gas meter drainage tube according to claim 7, characterized in that: The width of the inner groove (6) gradually increases from top to bottom, and an arc-shaped structure (5) is formed between the two sides of the inner groove (6) and the side plate (2).

9. The tray for placing the ultrasonic gas meter drainage tube according to claim 1, characterized in that: A plurality of guide grooves (9) are symmetrically arranged on both sides of the longitudinal side plate (2) of the tray. The guide groove (9) is located at the outer end between the two cavity grooves (11). The top of the guide groove (9) extends upward, and the bottom of the guide groove (9) is located on the side plate (2). The height of the guide groove (9) is greater than the height between the support seat (7) and the bottom of the side plate (2).

10. The tray for placing the ultrasonic gas meter drainage tube according to claim 1, characterized in that: An anti-mistake notch (8) is formed at a connection point between one of the adjacent side panels (2), and the anti-mistake notch (8) is arranged along the height direction of the side panel (2).

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