Tray assembly and gas meter thermostat

Abstract

The utility model provides a tray assembly and a gas meter thermostat, and relates to the technical field of bearing equipment. The tray assembly comprises a tray body, an elastic piece and a limiting plate. The mounting cavity of the tray main body can be used for accommodating the gas meter to be detected, and the first opening is opposite to the bottom wall of the mounting cavity, so that the gas meter to be detected can be mounted in the mounting cavity from the upper part of the tray assembly through the first opening, and the gas meter to be detected can be conveniently mounted in the mounting cavity. The elastic force of the elastic piece can drive the limiting plate to move towards the second opening of the mounting cavity, so that the limiting plate blocks the second opening, the limiting plate and the tray body are relatively fixed, and the purpose of fixing the gas meter to be detected is achieved. When one side of the to-be-detected gas meter extends out of the mounting cavity through the second opening, the to-be-detected gas meter can push the limiting plate to move in the direction away from the second opening, the elastic restoring force generated due to stress deformation of the elastic piece is increased, and the limiting plate can be driven to be pressed on the gas meter more tightly.

Description

Technical Field

[0001] This application relates to a tray assembly and a gas meter temperature control device, belonging to the technical field of load-bearing equipment. Background Technology

[0002] When a gas meter enters a temperature-controlled factory, its temperature differs from the factory's environment. Therefore, the gas meter needs to be heated or cooled to keep the temperature difference between the gas meter and the factory within a small range.

[0003] Currently, in order to heat up or cool down gas meters, automated temperature control equipment is used to process them. To improve processing efficiency, gas meters can be transported to the temperature control equipment via automated production lines. However, gas meters are prone to shaking during transport through automated production lines, which poses a risk of them falling and tipping over. Utility Model Content

[0004] This application provides a tray assembly and a gas meter temperature control device, which solves the problem of instability of gas meters during conveyor transport on assembly lines in related technologies.

[0005] This application provides a tray assembly for carrying a gas meter to be tested. The tray assembly includes:

[0006] The tray body includes a mounting cavity for accommodating the gas meter to be tested. The tray body also includes a first opening and a second opening communicating with the mounting cavity. The first opening is opposite to the bottom wall of the mounting cavity, and the second opening is perpendicular to the bottom wall of the mounting cavity.

[0007] An elastic element is connected to the tray body;

[0008] A limiting plate is movably disposed on the pallet body and is opposite to the second opening. The limiting plate is connected to the elastic element and is configured to be driven to move toward or away from the second opening.

[0009] The elastic element includes a first state and a second state. When the elastic element is in the first state, the elastic element is deformed by force, and the elastic force of the elastic element pushes the limiting plate closer to the second opening. When the elastic element is in the second state, the limiting plate is separated from the second opening, and the limiting plate is located outside the mounting cavity. The degree of deformation of the elastic element in the second state is greater than the degree of deformation of the elastic element in the first state.

[0010] In some embodiments, the pallet body includes a support plate and a positioning frame;

[0011] The support plate includes a support plate surface, the positioning frame is disposed on the support plate surface, the positioning frame and the support plate form the mounting cavity, the first opening is located on the side of the positioning frame away from the support plate, the second opening is located on the side of the positioning frame, and the limiting plate is movably disposed on the support plate.

[0012] In some embodiments, the positioning frame includes a positioning piece and a fixing piece, the fixing piece being connected to the positioning piece, the fixing piece being stacked and fixed to the bearing plate surface, the positioning piece being perpendicular to the bearing plate surface, and at least a portion of the fixing piece's orthographic projection onto the bearing plate surface being located outside the mounting cavity.

[0013] In some embodiments, the tray assembly further includes a fixing member, wherein the fixing plate and the support plate have corresponding fixing holes, and the fixing member is disposed in the fixing holes to fix the fixing plate and the support plate.

[0014] In some embodiments, the positioning frame further includes a guide plate, which is disposed on the side of the positioning plate opposite to the fixing plate, and extends in a direction opposite to the bearing plate surface, and is folded relative to the positioning plate in a direction opposite to the mounting cavity.

[0015] In some embodiments, the elastic element includes a connecting rod and an elastic portion, the connecting rod being movably disposed on the tray body, the limiting plate being connected to the connecting rod, and the elastic portion being connected to the connecting rod;

[0016] When the limiting plate moves in the direction away from the second opening, the degree of deformation of the elastic part increases.

[0017] In some embodiments, the elastic part is a spring, which is sleeved on the connecting rod, with one end of the elastic part abutting against the connecting rod and the other end of the elastic part abutting against the tray body.

[0018] In some embodiments, the pallet body further includes a connecting piece, and the number of positioning frames is multiple. The multiple positioning frames are spaced apart along a preset direction so that the number of mounting cavities, the first opening, and the second opening is multiple. The connecting piece is connected to adjacent positioning frames, and the connecting piece and the multiple positioning frames are an integral structure.

[0019] The connecting rod is movably inserted through the connecting piece, and one end of the elastic part abuts against the connecting piece.

[0020] In some embodiments, the orientation of the multiple second openings corresponding to the multiple positioning frames is consistent, and the limiting plate extends along the preset direction so that the limiting plate can move simultaneously toward or away from the multiple second openings.

[0021] Secondly, based on the tray assembly described above, this application provides a gas meter thermostat device, including the tray assembly described above.

[0022] In the pallet assembly provided in this application, the mounting cavity of the pallet body can be used to accommodate the gas meter to be tested. The first opening is opposite to the bottom wall of the mounting cavity, allowing the gas meter to be tested to be installed into the mounting cavity from above the pallet assembly through the first opening, thus facilitating its installation. The elastic force of the elastic element drives the limiting plate to move toward the second opening of the mounting cavity, causing the limiting plate to seal the second opening. This fixes the limiting plate relative to the pallet body, allowing the limiting plate and the pallet body to cooperate in confining the gas meter to be tested within the mounting cavity, achieving the purpose of fixing the gas meter. When one side of the gas meter to be tested extends out of the mounting cavity through the second opening, the gas meter can push the limiting plate to move in a direction away from the second opening. The elastic restoring force generated by the deformation of the elastic element increases, driving the limiting plate to press more tightly against the gas meter. This also fixes the gas meter to the pallet assembly, ensuring its stability during transportation.

[0023] The gas meter temperature control device provided in this application includes the aforementioned tray assembly, which makes the gas meter under test more efficient when it undergoes temperature control processing. Attached Figure Description

[0024] The above and other objects, features, and advantages of embodiments of this application will become more readily understood through the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application will be described by way of example and non-limitation, wherein:

[0025] Figure 1 This is a schematic diagram of the tray assembly according to an embodiment of this application;

[0026] Figure 2 This is an illustration of the tray body of the tray assembly in an embodiment of this application;

[0027] Figure 3 for Figure 2 A magnified view of area A in the middle;

[0028] Figure 4 This is a top view of the tray assembly according to an embodiment of this application;

[0029] Figure 5 for Figure 4 A magnified view of area B in the middle.

[0030] Figure label:

[0031] 100 - Pallet body, 110 - Load-bearing plate, 111 - Load-bearing plate surface, 120 - Positioning frame, 121 - Positioning piece, 122 - Fixing piece, 123 - Guide piece, 124 - Fixing hole, 130 - Connecting piece, 140 - Mounting cavity, 150 - First opening, 160 - Second opening

[0032] 200-Elastic element, 210-Connecting rod, 211-Rod body, 212-Limit cap, 220-Elastic part.

[0033] 300-Limit Plate,

[0034] 400 - Gas meter to be tested. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0041] When a gas meter enters a temperature-controlled factory, its temperature differs from the factory's environment. Therefore, the gas meter needs to be heated or cooled to keep the temperature difference between the gas meter and the factory within a small range.

[0042] Currently, automated temperature control equipment is used to process gas meters in order to heat or cool them. To improve processing efficiency, gas meters can be transported to the temperature control equipment via automated production lines. However, gas meters are prone to shaking during transport through automated production lines, posing a risk of falling and tipping over. If a gas meter falls or tipps over, it needs to be inspected for damage and then properly placed back on the production line, resulting in low efficiency in the temperature control process.

[0043] In the pallet assembly proposed in this application, the mounting cavity of the pallet body can be used to accommodate the gas meter to be tested. The first opening is opposite to the bottom wall of the mounting cavity, allowing the gas meter to be tested to be installed into the mounting cavity from above the pallet assembly through the first opening, thus facilitating its installation. The elastic force of the elastic element drives the limiting plate to move toward the first opening of the mounting cavity, causing the limiting plate to seal the first opening. This fixes the limiting plate relative to the pallet body, allowing the limiting plate and the pallet body to cooperate in confining the gas meter to be tested within the mounting cavity, achieving the purpose of fixing the gas meter. When one side of the gas meter to be tested extends out of the mounting cavity through the first opening, the gas meter can push the limiting plate to move in a direction away from the first opening. The elastic restoring force generated by the deformation of the elastic element increases, driving the limiting plate to press more tightly against the gas meter. This also fixes the gas meter to the pallet assembly, ensuring its stability during transportation.

[0044] The gas meter constant temperature device proposed in this application includes the aforementioned tray assembly, which makes the gas meter under test more efficient when it undergoes constant temperature processing by the gas meter constant temperature device.

[0045] The tray assembly and gas meter constant temperature device provided in this application will be described in detail below with reference to specific embodiments.

[0046] This application discloses a tray assembly, with reference to... Figure 1 As shown, the assembly includes a tray body 100, an elastic element 200, and a limiting plate 300. This tray assembly can be used in gas meter temperature control devices.

[0047] The pallet body 100 is the basic component of the pallet assembly of this application. The pallet body 100 provides a mounting base for at least some other components of the pallet assembly and serves to protect those components. The pallet body 100 can be made of metal, giving it better structural strength, thus improving its durability and reliability. Alternatively, the pallet body 100 can be made of polymer materials, allowing it to maintain a certain structural strength while remaining relatively lightweight.

[0048] The tray body 100 includes a mounting cavity 140, which is a hollow structure within the tray body 100. The mounting cavity 140 can be used to mount a gas meter 400 to be tested. When the gas meter 400 is located within the mounting cavity 140, it can be fixed to the tray body. The tray body 100 also includes a first opening 150, which is an opening on the surface of the tray body 100. The first opening 150 communicates with the mounting cavity 140, allowing the mounting cavity 140 to communicate with the outside through the first opening 150. The first opening 150 is located opposite the bottom wall of the mounting cavity 140, and correspondingly, it is located on one side of the top of the mounting cavity 140. When it is necessary to install the gas meter 400 to be tested into the mounting cavity 140, the gas meter 400 to be tested can be placed into the mounting cavity 140 from above through the first opening 150, making the process of placing the gas meter 400 to be tested into the mounting cavity 140 simpler and more convenient.

[0049] The pallet body 100 also includes a second opening 160, which is an opening on the surface of the pallet body 100. The second opening 160 communicates with the mounting cavity 140 of the pallet body 100, allowing the mounting cavity 140 to communicate with the outside through the second opening 160. The second opening 160 is located on one side of the mounting cavity 140, such that the second opening 160 is perpendicular to the bottom wall of the mounting cavity 140, that is, the orientation of the second opening 160 is parallel to the bottom wall of the mounting cavity 140. Correspondingly, the orientation of the second opening 160 intersects with the orientation of the first opening 150. Specifically, the opening of the second opening 160 is... Figure 1 The X-axis direction in the diagram.

[0050] When the gas meter 400 to be tested is located within the mounting cavity 140 of the tray body 100, at least a portion of the opposite outer walls of the gas meter 400 can abut against the inner walls of the mounting cavity 140 located on both sides of the second opening 160. Specifically, the mounting cavity 140 includes a first inner wall and a second inner wall, which are arranged opposite to each other and located on both sides of the second opening 160. The opposite outer walls of the gas meter 400 to be tested can abut against the first inner wall and the second inner wall respectively, thus limiting the gas meter 400 to be tested in a direction parallel to the bottom wall of the mounting cavity 140 and intersecting with the orientation of the second opening 160. Figure 1 The Y direction is used to prevent the gas meter 400 under test from shifting in the above direction after being subjected to external force, thus keeping the gas meter 400 under test stable.

[0051] A limiting plate 300 is movably disposed on the pallet body 100, allowing it to move relative to the pallet body 100. The limiting plate 300 faces the second opening 160 of the pallet body 100 and can be driven to move towards or away from the second opening 160. When the limiting plate 300 moves towards the second opening 160, it can eventually block the second opening 160. At this time, if the gas meter 400 to be tested is located within the mounting cavity 140, the limiting plate 300 can be aligned with the outer wall of the gas meter 400 facing the second opening 160. The limiting plate 300, in conjunction with the pallet body 100, can confine the gas meter 400 to the mounting cavity 140, thereby preventing the gas meter from detaching from the second opening 160 within the mounting cavity 140 to a certain extent. Furthermore, since the first opening 150 is located on the top side of the mounting cavity 140, the gas meter 400 to be tested inside the mounting cavity 140 will not move out of the mounting cavity 140 due to its own gravity. In this way, the gas meter 400 to be tested can be stably fixed inside the mounting cavity 140.

[0052] When the gas meter 400 to be tested is large, causing part of it to extend beyond the mounting cavity 140 from the second opening 160, the gas meter 400 can push the limiting plate 300 to move in the direction opposite to the second opening 160. The limiting plate 300 can limit the gas meter 400 to be tested in the orientation of the second opening 160, thereby preventing the gas meter 400 from moving out of the mounting cavity 140 under external force. Thus, the gas meter 400 can be limited in multiple directions when installed in the mounting cavity 140, maintaining its stability.

[0053] The elastic element 200 is connected to both the tray body 100 and the limiting plate 300. When the limiting plate 300 moves, it can cause the elastic element 200 to deform, resulting in a first state and a second state. When the elastic element 200 is in the first state, it is in a deformed state. The elastic force of the elastic element 200, i.e., the restoring deformation force, acts on the limiting plate 300, allowing the limiting plate 300 to press against the portion of the tray body 100 located around the second opening 160. This allows the limiting plate 300 to be close to the second opening 160, enabling the limiting plate 300 and the tray body 100 to enclose the gas meter 400 to be tested within the mounting cavity 140. Specifically, the limiting plate 300 can seal the second opening 160.

[0054] When the limiting plate 300 moves in the direction away from the second opening 160, the elastic element 200 can be further deformed under force, and the elastic element 200 switches to the second state, increasing the degree of deformation and elastic force. The restoring deformation force of the elastic element 200 can drive the limiting plate 300 to move toward the second opening 160. Therefore, when the volume of the gas meter 400 to be tested is large, causing part of the gas meter 400 to extend out of the mounting cavity 140 from the second opening 160, the gas meter 400 to be tested can push the limiting plate 300 to move in the direction away from the second opening 160, thereby increasing the degree of deformation of the elastic element 200. The elastic force of the elastic element 200, i.e., the restoring deformation force of the elastic element 200, drives the limiting plate 300 to move toward the second opening 160, so that the limiting plate 300 can be pressed against one outer wall of the gas meter 400 to be tested, thereby fixing the gas meter 400 to be tested in the direction of the second opening 160, making the gas meter 400 to be tested more stable when it is placed in the mounting cavity 140. In this way, when the tray assembly of this application is applied to the gas meter constant temperature device, the stability of the tray assembly when moving on the production line is better, and the gas meter 400 to be tested can always be confined within the mounting cavity 140, thereby improving the operating efficiency of the gas meter constant temperature device of this application.

[0055] When the gas meter 400 to be tested needs to be installed in the mounting cavity 140 of the tray body 100, the limiting plate 300 can be pushed to move away from the second opening 160 first, and then the gas meter 400 to be tested can be placed into the mounting cavity 140 through the first opening 150, ensuring that the opposite outer walls of the gas meter 400 abut against the first and second inner walls of the mounting cavity 140. Then the limiting plate 300 is released, so that the limiting plate 300 can block the second opening 160 under the elastic restoring force of the elastic member 200, or press the limiting plate 300 against the gas meter 400 to be tested.

[0056] In some implementations, reference Figure 2 As shown, in order to enable the pallet body 100 of this application to form an installation cavity 140, a first opening 150, and a second opening 160, the pallet body 100 may be provided with a support plate 110 and a positioning frame 120. The support plate 110 is the basic component of the pallet body 100 of this application. The support plate 110 can provide an installation base for at least some other components of the pallet body 100 and serves to protect at least some of these other components.

[0057] The support plate 110 includes a support plate surface 111, which is one side surface of the support plate 110. A positioning frame 120 is disposed on the support plate surface 111 of the support plate 110. The positioning frame 120 is a frame structure, and the positioning frame 120 and the support plate 110 can enclose and form an installation cavity 140. Correspondingly, the support plate surface 111 of the support plate 110 constitutes the bottom wall of the installation cavity 140, and the side wall of the positioning frame 120 can constitute the inner side wall of the installation cavity 140. A first opening 150 is located on the side of the positioning frame 120 opposite to the support plate 110, and a second opening 160 is located on the side of the positioning frame 120.

[0058] Specifically, the sidewalls of the positioning frame 120 can form the first and second inner walls of the mounting cavity 140. Correspondingly, when the gas meter 400 to be tested is placed in the mounting cavity 140, the opposite sides of the gas meter 400 can respectively abut against the positioning frame 120, and the positioning frame 120 can restrict the gas meter 400 to be tested. The side of the positioning frame 120 and the supporting plate 110 can form a second opening 160. The limiting plate 300 is movably disposed on the supporting plate 110, and the limiting plate 300 is located on one side of the positioning frame 120. The limiting plate 300 can move toward or away from the positioning frame 120, so that the limiting plate 300 can move toward or away from the second opening 160.

[0059] When the elastic element 200 is in the first state, the elastic force of the elastic element 200 can drive the limiting plate 300 to abut against the portion of the positioning frame 120 located on both sides of the second opening 160, so that the limiting plate 300 can be pressed onto the positioning frame 120, thus the limiting plate 300 can better block the second opening 160.

[0060] When preparing the pallet body 100 of this application, the supporting plate 110 and the positioning frame 120 can be prepared separately, and then the supporting plate 110 and the positioning frame 120 can be connected, thereby reducing the difficulty of the preparation process of the pallet body 100.

[0061] In some implementations, reference Figure 2 and Figure 3 As shown, in order to enable the positioning frame 120 of this application to be connected to the support plate 110, the positioning frame 120 may be configured to include a positioning piece 121 and a fixing piece 122. The fixing piece 122 is connected to the positioning piece 121, and the fixing piece 122 is stacked and fixed on the support plate surface 111. The positioning piece 121 is perpendicular to the support plate surface 111, and the fixing piece 122 is located outside the mounting cavity 140.

[0062] Both the positioning piece 121 and the fixing piece 122 are sheet-mounted structural components. When the fixing piece 122 is stacked on the bearing plate surface 111 of the bearing plate 110, the thickness direction of the fixing piece 122 is perpendicular to the bearing plate surface 111. This increases the contact area between the fixing piece 122 and the bearing plate surface 111, making the connection between the fixing piece 122 and the bearing plate 110 more stable and reliable. The positioning piece 121 can be connected to the fixing piece 122, allowing the positioning piece 121 and the bearing plate 110 to be relatively fixed. The positioning piece 121 is perpendicular to the bearing plate surface 111, making it also perpendicular to the fixing piece 122. The outer wall of the positioning piece 121 can form the inner wall of the mounting cavity 140, and the first opening 150 can be located on the side of the positioning piece 121 opposite to the fixing piece 122.

[0063] At least a portion of the fixing plate 122's orthographic projection onto the support plate surface 111 lies outside the mounting cavity 140, allowing a portion of the fixing plate 122 to be located outside the mounting cavity 140. This reduces the space occupied by the fixing plate 122 within the mounting cavity 140. When the orthographic projection of the fixing plate 122 onto the support plate surface 111 is completely outside the mounting cavity 140, the bottom wall of the mounting cavity 140 becomes a plane entirely formed by the support plate surface 111. Thus, when the gas meter 400 to be tested is placed inside the mounting cavity 140, the bottom wall of the gas meter 400 can fully contact the inner wall of the mounting cavity 140, making the gas meter 400 more stable when placed inside the mounting cavity 140.

[0064] In some implementations, reference Figure 2 As shown, to enable the fixing plate 122 to be fixedly connected to the support plate 110, corresponding fixing holes 124 can be provided in the fixing plate 122 and the support plate 110. By installing the fastener in the fixing hole 124, the fixing plate 122 and the support plate 110 can be fixed together. Specifically, the fixing hole 124 can be a screw hole, and the fastener can be a screw. This also allows the fixing plate 122 and the support plate 110 to be detachably connected, thereby facilitating the maintenance of the pallet assembly of this application. Of course, the fixing plate 122 and the support plate 110 can also be fixed by riveting or bonding.

[0065] In some implementations, reference Figure 3 As shown, to facilitate the installation of the gas meter 400 to be tested into the mounting cavity 140 through the first opening 150 of the tray body 100, the positioning frame 120 may also include a guide plate 123. The guide plate 123 is located on the side of the positioning plate 121 opposite to the fixing plate 122, and the guide plate 123 extends in a direction opposite to the bearing plate surface 111, and the guide plate 123 is folded relative to the positioning plate 121 in a direction opposite to the mounting cavity 140.

[0066] The guide plate 123 is disposed on the side of the positioning plate 121 opposite to the fixing plate 122, such that the first opening 150 is located on the side of the guide plate 123 opposite to the positioning plate 121. The guide plate 123 extends in the direction opposite to the bearing plate surface 111, and the guide plate 123 is folded relative to the positioning plate 121 in the direction opposite to the mounting cavity 140, so that the guide plate can be bent relative to the positioning plate 121. Thus, the surface of the guide plate 123 can form an inclined surface, so that the guide plate 123 has an outward expansion structure in the direction opposite to the bearing plate surface 111. When the gas meter 400 to be tested is installed in the mounting cavity 140 through the first opening 150, the outer wall of the guide plate 123 can guide the gas meter 400 to be tested, so that the gas meter 400 to be tested can be installed in the mounting cavity 140 more conveniently through the first opening 150.

[0067] In some embodiments, the positioning frame 120 of this application can be an integral structure. Correspondingly, when the material of the positioning frame 120 is metal, the metal sheet can be bent through sheet metal process to form a structure in which the two sides of the positioning piece 121 are respectively connected to the bent fixing piece 122 and the guide piece 123, which can make the structural integrity and stability of the positioning frame 120 better.

[0068] In some implementations, reference Figure 4 and Figure 5 As shown, in order to enable the elastic element 200 of this application to deform when the limiting plate 300 moves away from the second opening 160, the elastic element 200 may be provided with a connecting rod 210 and an elastic part 220. The connecting rod 210 is movably disposed on the tray body 100, the limiting plate 300 is connected to the connecting rod 210, and the elastic part 220 is connected to the connecting rod 210. When the limiting plate 300 moves away from the second opening 160, it can drive the connecting rod 210 to move together in the direction away from the second opening 160. The connecting rod 210 is connected to the elastic part 220, so that when the connecting rod 210 moves, it can drive the end of the elastic part 220 connected to the connecting rod 210 to move together, thereby increasing the degree of deformation of the elastic part 220, and thus increasing the elastic force of the elastic part 220.

[0069] In some implementations, reference Figure 5As shown, the elastic part 220 of this application can specifically be configured as a spring, so that the elastic part 220 can be sleeved on the connecting rod 210. One end of the elastic part 220 can abut against the tray body 100, thereby allowing the tray body 100 to limit the elastic part 220 in one direction, and the other end of the elastic part 220 abuts against the connecting rod 210. When the limiting plate 300 abuts against the positioning frame 120 and blocks the second opening 160, the elastic part 220 is compressed by the connecting rod 210 and the tray body 100. When the connecting rod 210 moves away from the second opening 160 with the limiting plate 300, the connecting rod 210 can further compress the elastic part 220, thereby increasing the degree of deformation of the elastic part 220 and further increasing the elastic force of the elastic part 220. The elastic part 220 sleeved on the connecting rod 210 can make the connection between the elastic part 220 and the connecting rod 210 tighter, preventing the elastic part 220 from separating from the connecting rod 210 during the deformation process under force. In addition, the connecting rod 210 can guide the deformation of the elastic part 220, prevent the elastic part 220 from bending during the deformation process, and play a role in protecting the elastic part 220.

[0070] When the limiting plate 300 abuts against the positioning frame 120 to block the second opening 160, the elastic part 220 is pressed by one end of the connecting rod 210 and the tray body 100, thereby compressing the elastic part 220. The restoring deformation force of the elastic part 220 can push the limiting plate 300 to tightly abut against the positioning frame 120. When the limiting plate 300 moves in a direction away from the second opening 160, one end of the connecting rod 210 can further press the elastic part 220, increasing the degree of compression of the elastic part 220, thereby further increasing the restoring deformation force of the elastic part 220. In this way, the elastic part 220 can drive the limiting plate 300 to press against the gas meter 400 to be tested with a greater force, and the limiting plate 300 can better fix the gas meter 400 to be tested.

[0071] Specifically, the connecting rod 210 may include a rod body 211 and a limiting cap 212, with one end of the limiting cap 212 connected to the rod body 211. The outer diameter of the limiting cap 212 is larger than the outer diameter of the rod body 211. Thus, when the elastic part 220 is fitted onto the rod body 211 of the connecting rod 210, one end of the elastic part 220 can abut against the limiting cap 212, thereby allowing one end of the elastic part 220 to abut against the connecting rod 210.

[0072] In some implementations, reference Figure 2 , Figure 4 and Figure 5 As shown, the number of positioning frames 120 in this application can be set to multiple, and the multiple positioning frames 120 are spaced apart along a preset direction. The preset direction is... Figure 1 , Figure 2 and Figure 4In the Y direction. Multiple positioning frames 120 are disposed on the support plate 110, and the multiple positioning frames 120 and the support plate 110 can form multiple mounting cavities 140. Correspondingly, there are also multiple first openings 150 and second openings 160. The gas meters 400 to be tested can be installed in each of the multiple mounting cavities 140, thereby enabling the tray assembly of this application to carry a larger number of gas meters 400 to be tested. Thus, when the tray assembly of this application is applied to a gas meter constant temperature device, multiple gas meters 400 to be tested can be transported to the target position at one time through the tray assembly, thereby improving the working efficiency of the gas meter constant temperature device.

[0073] Multiple positioning frames 120 can be connected by connecting pieces 130. The connecting pieces 130 can fix adjacent positioning frames 120. In this way, multiple positioning frames 120 are fixed to the bearing plate 110 respectively, and adjacent positioning frames 120 are also fixed, which can make the structure of multiple positioning frames 120 more stable.

[0074] The connecting piece 130 can be integrated with the adjacent positioning frame 120, making the connection between the connecting piece 130 and the adjacent positioning frame 120 more stable and reliable. Specifically, the connecting piece 130 and the multiple positioning frames 120 are all made of metal. Multiple positioning frames 120 and connecting pieces 130 can be formed by bending metal sheets through sheet metal processing. This eliminates the need to connect multiple positioning frames 120 separately, reducing the manufacturing process and cost of the pallet assembly in this application.

[0075] The connecting rod 210 is movably inserted through the connecting piece 130, allowing it to move relative to the connecting piece 130. Specifically, the connecting rod 210 has a through hole through which it passes, and the inner diameter of the through hole in the connecting piece 130 is larger than the outer diameter of the connecting rod 210. This allows the connecting rod 210 to be mounted on the connecting piece 130 and to reciprocate relative to the connecting piece 130 along its axial direction. The two ends of the connecting rod 210 are located on opposite sides of the connecting piece 130, with one end connected to the limiting plate 300 and the other end abutting against the elastic part 220.

[0076] In some implementations, reference Figure 1 , Figure 2 and Figure 4As shown, the orientation of the second openings 160 corresponding to the multiple positioning frames 120 in this application can be set to be consistent. Correspondingly, the limiting plate 300 can extend along a preset direction in which the multiple positioning frames 120 are arranged, so that the limiting plate 300 can move simultaneously toward or away from the multiple second openings 160. This allows the limiting plate 300 to simultaneously limit the gas meters 400 to be tested in multiple mounting cavities 140 through a single limiting plate 300. This eliminates the need to set multiple limiting plates 300 separately for the multiple second openings 160, simplifying the structure of the tray assembly in this application.

[0077] Based on the tray assembly described above, this application also proposes a gas meter temperature control device, including the tray assembly described above. The gas meter temperature control device may further include a temperature control component and a conveying component. The tray assembly may be disposed on the conveying component, and multiple gas meters 400 to be tested may be disposed in multiple mounting cavities 140 of the tray assembly. The conveying component can convey the tray assembly to the temperature control component, and the temperature control component can perform temperature control on the multiple gas meters 400 to be tested on the tray assembly.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A tray assembly for carrying a gas meter (400) to be tested, characterized in that, The tray assembly includes: The tray body (100) includes a mounting cavity (140) for accommodating the gas meter (400) to be tested. The tray body (100) also includes a first opening (150) and a second opening (160) communicating with the mounting cavity (140). The first opening (150) is opposite to the bottom wall of the mounting cavity (140), and the second opening (160) is perpendicular to the bottom wall of the mounting cavity (140). An elastic element (200) is connected to the tray body (100); A limiting plate (300) is movably disposed on the pallet body (100), and the limiting plate (300) is opposite to the second opening (160). The limiting plate (300) is connected to the elastic member (200), and the limiting plate (300) is configured to be driven to move toward or away from the second opening (160). The elastic element (200) includes a first state and a second state. When the elastic element (200) is in the first state, the elastic element (200) is deformed by force, and the elastic force of the elastic element (200) pushes the limiting plate (300) closer to the second opening (160). When the elastic element (200) is in the second state, the limiting plate (300) is away from the second opening (160), and the limiting plate (300) is located outside the mounting cavity (140). The degree of deformation of the elastic element (200) in the second state is greater than the degree of deformation of the elastic element (200) in the first state.

2. The tray assembly according to claim 1, characterized in that, The pallet body (100) includes a support plate (110) and a positioning frame (120); The support plate (110) includes a support plate surface (111), the positioning frame (120) is disposed on the support plate surface (111), the positioning frame (120) and the support plate (110) surround to form the mounting cavity (140), the first opening (150) is located on the side of the positioning frame (120) away from the support plate (110), the second opening (160) is located on the side of the positioning frame (120), and the limiting plate (300) is movably disposed on the support plate (110).

3. The tray assembly according to claim 2, characterized in that, The positioning frame (120) includes a positioning piece (121) and a fixing piece (122). The fixing piece (122) is connected to the positioning piece (121). The fixing piece (122) is stacked and fixed on the bearing plate surface (111). The positioning piece (121) is perpendicular to the bearing plate surface (111). At least a portion of the orthographic projection of the fixing piece (122) onto the bearing plate surface (111) is located outside the mounting cavity (140).

4. The tray assembly according to claim 3, characterized in that, The tray assembly also includes a fixing member. The fixing plate (122) and the supporting plate (110) have corresponding fixing holes (124). The fixing member is disposed in the fixing hole (124) to fix the fixing plate (122) and the supporting plate (110).

5. The tray assembly according to claim 3, characterized in that, The positioning frame (120) also includes a guide piece (123), which is disposed on the side of the positioning piece (121) away from the fixing piece (122), and the guide piece (123) extends in a direction away from the bearing plate surface (111), and the guide piece (123) is folded relative to the positioning piece (121) in a direction away from the mounting cavity (140).

6. The pallet assembly according to any one of claims 2-5, characterized in that, The elastic element (200) includes a connecting rod (210) and an elastic part (220). The connecting rod (210) is movably disposed on the tray body (100). The limiting plate (300) is connected to the connecting rod (210), and the elastic part (220) is connected to the connecting rod (210). When the limiting plate (300) moves in a direction away from the second opening (160), the elastic part (220) undergoes greater deformation under force.

7. The tray assembly according to claim 6, characterized in that, The elastic part (220) is a spring. The elastic part (220) is sleeved on the connecting rod (210). One end of the elastic part (220) abuts against the connecting rod (210), and the other end of the elastic part (220) abuts against the tray body (100).

8. The tray assembly according to claim 7, characterized in that, The pallet body (100) also includes a connecting piece (130). There are multiple positioning frames (120), which are spaced apart along a preset direction so that there are multiple mounting cavities (140), first openings (150), and second openings (160). The connecting piece (130) is connected to adjacent positioning frames (120), and the connecting piece (130) and the multiple positioning frames (120) are an integral structure. The connecting rod (210) is movably inserted through the connecting piece (130), and one end of the elastic part (220) abuts against the connecting piece (130).

9. The tray assembly according to claim 8, characterized in that, The orientation of the multiple second openings (160) corresponding to the multiple positioning frames (120) is consistent, and the limiting plate (300) extends along the preset direction so that the limiting plate (300) can move towards or away from the multiple second openings (160) at the same time.

10. A gas meter constant temperature device, characterized in that, Includes the tray assembly as described in any one of claims 1-9.

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