Tray assembly and calibrating device

Abstract

The utility model discloses a tray assembly and a calibrating device, the tray assembly is used for bearing an electric energy meter, and the tray assembly comprises a base body, a limiting part, a locking part and at least two first elastic pieces. The base body is provided with a bearing face and a limiting groove. The limiting part is provided with a first position accommodated in the limiting groove and a second position at least partially extending out of the limiting groove. The second position limiting part is used for positioning the electric energy meter. The locking part is used for being detachably connected with the locking part of the limiting part so as to lock the limiting part at the first position. The two first elastic pieces are connected to the base body and the limiting part respectively. And at the first position, the sum of the elastic forces borne by the limiting part is T1. And at the second position, the sum of the elastic forces borne by the limiting part is T2. The gravity of the limiting part is G, and the locking force of the locking part is F. The tray assembly satisfies F > T1 > T2 > G. According to the scheme, the application range of the tray assembly can be expanded, the compatibility of the tray assembly is effectively improved, and the tray assembly is adaptive to various different types of electric energy meters.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric energy meter tray, especially relates to a tray assembly and calibration device. BACKGROUND

[0002] The tray assembly is used for carrying electric energy meters and conducting pipeline detection. The existing tray assembly comprises a base body and a limiting part. The limiting part is arranged on the base body to limit and fix the electric energy meters carried on the base body, thereby ensuring the stability of the electric energy meters. However, the electric energy meters include various types such as single-phase electric meters, three-phase electric meters and terminal electric meters. The limiting part can only be adapted to fix a single type of electric meter. When other types of electric meters need to be carried on the base body, the limiting part will interfere with the electric meters, that is, the compatibility of the existing tray assembly is poor. SUMMARY

[0003] The utility model discloses a tray assembly and calibration device, and aims to solve the technical problem of poor compatibility of the tray assembly.

[0004] To achieve the above-mentioned purpose, the utility model discloses a tray assembly for carrying electric energy meters, which comprises:

[0005] The base body has a carrying surface on one side for carrying the electric energy meters. The base body is provided with a limiting groove penetrating the carrying surface.

[0006] The limiting part is connected to the base body. The limiting part has a first position in which the limiting part is accommodated in the limiting groove and a second position in which the limiting part at least partially protrudes from the limiting groove. In the second position, the limiting part is used to position the electric energy meters carried on the carrying surface. The limiting part is provided with a locking part.

[0007] The locking part is used to detachably connect the locking part to lock the limiting part in the first position.

[0008] At least two first elastic members are arranged on both sides of the locking part, and each first elastic member is connected to the base body and the limiting part.

[0009] In the first position, the sum of the elastic forces of each first elastic member acting on the limiting part is T1, in the second position, the sum of the elastic forces of each first elastic member acting on the limiting part is T2, the gravity of the limiting part is G, and the locking force of the locking part is F. The tray assembly satisfies F>T1>T2>G.

[0010] In some embodiments, the base body is provided with a first guide hole, the first guide hole is in communication with the limiting groove, the limiting part is provided with a first guide piece, and the first guide piece penetrates the first guide hole.

[0011] The second guide is arranged in the limiting groove, and the limiting part is provided with a second guide hole, and the second guide passes through the second guide hole.

[0012] In some embodiments, the base is provided with a first guide hole in communication with the limiting groove, the limiting part is provided with a first guide, and the first guide passes through the first guide hole; the slot of the limiting groove is provided with a positioning part for abutting against the first guide to prevent the limiting part from disengaging from the limiting groove.

[0013] In some embodiments, the tray assembly includes three first elastic members, each of which is arranged around the locking part at intervals, the limiting part has a plurality of connecting grooves with slot openings facing the base, the base has a plurality of connecting blocks arranged to extend towards the limiting part, and each of the first elastic members has one end passing through each of the connecting grooves and the other end sleeved outside each of the connecting blocks.

[0014] In some embodiments, the limiting part includes a first limiting strip, wherein T1 satisfies 10N≤T1≤17N, T2 satisfies 2.5N≤T2≤4N, the gravity of the first limiting strip is G1, G1 satisfies 0.8N≤G1≤1.4N, and F satisfies 19N≤F≤29N; and / or,

[0015] The limiting part includes a second limiting strip, wherein T1 satisfies 16N≤T1≤25N, T2 satisfies 3N≤T2≤6N, the gravity of the second limiting strip is G2, G2 satisfies 1.1N≤G2≤1.8N, and F satisfies 19N≤F≤29N.

[0016] In some embodiments, the locking part is arranged in the limiting groove and connected to the base, the locking part includes a first lock arm and a second lock arm, and the locking part is configured to cause the first lock arm and the second lock arm to approach each other when pressed once and to cause the first lock arm and the second lock arm to move away from each other when pressed twice.

[0017] During the process of moving the limiting part from the second position to the first position, the locking part presses the locking part once to cause the first lock arm and the second lock arm to approach each other to clamp the locking part, thereby keeping the limiting part in the first position; when the limiting part is in the first position and the locking part is pressed twice, the first lock arm and the second lock arm can move away from each other to release the locking part, so that the limiting part moves to the second position.

[0018] In some embodiments, the locking portion comprises a lock body, the first locking arm and the second locking arm are both connected and protrude from the lock body, and the first locking arm and the second locking arm are both configured to be elastically deformed relative to the lock body so that the first locking arm and the second locking arm can move away from each other.

[0019] In some embodiments, the locking portion comprises a stop portion, and during the first pressing of the locking portion, the stop portion presses the first locking arm and the second locking arm so that the first locking arm and the second locking arm move close to each other.

[0020] In some embodiments, the locking portion comprises a lock seat having the stop portion, and the locking portion comprises a second elastic member connected to the lock seat and the lock body, respectively, and during the movement of the first locking arm and the second locking arm close to each other, the second elastic member is compressed to drive the first locking arm and the second locking arm to move away from the stop portion when being pressed again.

[0021] The utility model discloses a second aspect embodiment proposes a kind of detecting device, comprising:

[0022] The tray assembly as described in the above embodiments; and,

[0023] Detection assembly is used to detect the electric energy meter carried on the tray assembly.

[0024] Compared with the prior art, the utility model has the beneficial effects including:

[0025] In the technical scheme of the utility model, the tray portion comprises a base body, a limiting portion, a locking portion and at least two first elastic members. The base body has a carrying surface on one side for carrying an electric energy meter, and the base body is provided with a limiting slot penetrating the carrying surface. The limiting portion is connected to the base body. In the prior art, the limiting portion of the tray assembly can only adapt to fixed single type of electric meter, and when other types of electric meter need to be carried on the base body, the limiting portion will interfere with it, that is, the compatibility of the existing tray assembly is poor. The limiting portion of the present scheme can at least partially extend out of the limiting slot when in the second position, i.e. the electric energy meter carried on the carrying surface can be limited and fixed; when in the first position, the limiting portion can be accommodated in the limiting slot, i.e. the limiting portion can be prevented from interfering with other electric energy meters. Therefore, the present scheme can expand the application range of the tray assembly, effectively improve the compatibility of the tray assembly, and adapt to a variety of different types of electric energy meters.

[0026] Further, the locking portion is detachably connected to the locking portion, and the limiting portion can be locked in the first position, that is, the limiting portion can be prevented from being accidentally separated from the first position and interfering with the normal bearing of other electric energy meters. In addition, the tray assembly includes at least two first elastic members, the two first elastic members are respectively arranged on both sides of the locking portion, and each first elastic member is respectively connected to the base body and the limiting portion, that is, the limiting portion can change its position by using the elastic force of each first elastic member, so that the position switching operation of the limiting portion is convenient and fast.

[0027] In addition, in the first position, the sum of the elastic forces of the first elastic members acting on the limiting portion is T1, and in the second position, the sum of the elastic forces of the first elastic members acting on the limiting portion is T2. The gravity of the limiting portion is G, and the locking force of the locking portion is F. The tray assembly satisfies F>T1>T2>G, that is, the locking force of the locking portion is greater than the elastic force acting on the limiting portion in the first position, so that the locking portion can effectively prevent the limiting portion from being separated from the first position, thereby stably maintaining the limiting portion in the first position and improving the stability of the limiting portion on the electric energy meter. And the elastic force acting on the limiting portion in the second position is greater than the gravity of the limiting portion, that is, the limiting portion can be stably lifted to the second position, thereby improving the reliability of the limiting. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to the structures shown in these drawings without creating any creative labor.

[0029] Figure 1 The structure diagram of the tray assembly in an embodiment of the present application is shown, wherein the base body and the limiting portion are shown;

[0030] Figure 2 The exploded view of the tray assembly in an embodiment of the present application is shown, wherein the base body, the first limiting strip, the locking portion, the first elastic member and the cover plate are shown;

[0031] Figure 3 The cross-sectional view of the tray assembly in an embodiment of the present application is shown, wherein the limiting portion is in the second position;

[0032] Figure 4 The cross-sectional view of the tray assembly in an embodiment of the present application is shown, wherein the limiting portion is in the first position, and the locking portion locks the locking portion;

[0033] Figure 5It is the explosion schematic view of the tray assembly in one embodiment of the utility model, wherein the base body, the second limiting strip, the locking part, the first elastic piece and the cover plate are shown;

[0034] Figure 6 It is the structure schematic view of the tray assembly in one embodiment of the utility model;

[0035] Figure 7 It is the structure schematic view of the locking part in one embodiment of the utility model, wherein the lock body, the lock seat, the second elastic piece and the stop part are shown;

[0036] Figure 8 It is the explosion schematic view of the locking part in one embodiment of the utility model, wherein the movable piece, the lock body, the lock seat and the locking groove are shown;

[0037] Figure 9 It is the explosion sectional view of the locking part in one embodiment of the utility model, wherein the guide protrusion and the second elastic piece are shown.

[0038] Explanation of reference numerals:

[0039] Tray assembly 10;

[0040] Base body 100;Carrying surface 110;Limiting groove 120;First guide hole 130;Guide sleeve 140;Positioning part 150;Connection block 160;Cover plate 170;

[0041] Limiting part 200;

[0042] Locking part 210;Clamping groove 211;

[0043] First guide piece 220;Guide block 221;Guide shaft 222;

[0044] Connection groove 230;

[0045] First limiting strip 240;

[0046] Second limiting strip 250;

[0047] Locking part 300;

[0048] First lock arm 310;First clamping convex 311;

[0049] Second lock arm 320;Second clamping convex 321;

[0050] Lock body 330;Movable piece 331;Guide protrusion 332;

[0051] Lock seat 340;Stop part 341;Locking groove 342;Guide groove 343;

[0052] Second elastic piece 350;

[0053] The first elastic member 400.

[0054] The purposes, functional features and advantages of the utility model will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the utility model will be clearly and completely described with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0056] The tray assembly is used for carrying electric energy meters and carrying out pipeline detection. The existing tray assembly comprises a base body and a limiting part, the limiting part is arranged on the base body to limit and fix the electric energy meters carried on the base body, thereby guaranteeing the stability of the fixed electric energy meters. The electric energy meters include various types such as single-phase electric meters, three-phase electric meters and terminal electric meters, but the limiting part can only adapt to fixing a single type of electric meter, when other types of electric meters need to be carried on the base body, the limiting part will interfere with them, that is, the compatibility of the existing tray assembly is poor.

[0057] Therefore, the utility model provides a tray assembly 10 in the first aspect of the embodiment, which has good compatibility. The tray assembly 10 is used for carrying electric energy meters. It should be noted that when carrying electric energy meters, a plurality of tray assemblies 10 can be connected and combined to adapt to the carrying requirements of different types of electric energy meters. The tray assembly 10 of the embodiment of the application will be introduced below with reference to Figures 1 to 9 Specifically, the tray assembly 10 comprises a base body 100, a limiting part 200, a locking part 300 and at least two first elastic members 400.

[0058] The base body 100 is used for carrying electric energy meters. Specifically, the base body 100 has a carrying surface 110 on one side for carrying electric energy meters. With reference to Figure 1 , the carrying surface 110 can be located on the upper side of the base body 100. With reference to Figures 1 to 3 , the base body 100 is also provided with a limiting groove 120, and the limiting groove 120 is used for installing the limiting part 200 and the locking part 300. It should be noted that the limiting groove 120 can be arranged through the carrying surface 110. In other words, the limiting groove 120 can be concave on the carrying surface 110.

[0059] With reference to Figure 1 and Figure 6The limiting part 200 is used to limit the movement of the electricity meter. The relative arrangement of the limiting part 200 and the base 100 is described below. The limiting part 200 can be connected to the base 100 and has a first position and a second position relative to the base 100. Specifically, in the first position, the limiting part 200 can be accommodated within the limiting groove 120, meaning the limiting part 200 will not interfere with other electricity meters. In the second position, the limiting part 200 can extend at least partially out of the limiting groove 120, thus limiting the target electricity meter and ensuring the stability of the tray assembly 10 in supporting the electricity meter.

[0060] Reference Figures 2 to 5 The limiting part 200 is provided with a locking part 210, which is used for locking by the locking part 300. Specifically, the locking part 300 is detachably connected to the locking part 210. (Refer to...) Figure 4 When the limiting part 200 is in the first position, that is, the locking part 300 can connect to and lock the locking part 210, so that the limiting part 200 can be stably maintained in the first position. (See reference...) Figure 3 When the limiting part 200 needs to be switched to the second position, that is, the locking part 300 can be separated from the locking part 210, so that the limiting part 200 can perform normal position switching. It can be understood that the number of locking parts 300 can be one or more. This embodiment of the application is described using two locking parts 300 as an example. It should be noted that the locking part 210 can be detachably connected to the limiting part 200.

[0061] Reference Figures 2 to 4 The first elastic element 400 is used to drive the limiting part 200 to switch positions. The number of first elastic elements 400 can be two, three, or four, depending on the actual situation. When the tray assembly 10 has two first elastic elements 400, the two first elastic elements 400 can be respectively provided on both sides of the locking part 300, as shown in the figure. Figure 3 In terms of orientation, the two first elastic elements 400 can be located on the left and right sides of the locking part 300. It should be noted that each of the first elastic elements 400 is connected to the base 100 and the limiting part 200 respectively.

[0062] The force relationships among the components of pallet assembly 10 are described below. (Refer to...) Figure 4 When the limiting part 200 is in the first position, the sum of the elastic forces exerted on the limiting part 200 by each of the first elastic members 400 is T1. It can be understood that when the tray assembly 10 has two first elastic members 400, the sum of the elastic forces exerted on the limiting part 200 by the two first elastic members 400 is T1. (Refer to...) Figure 3When the limiting part 200 is in the second position, the sum of the elastic forces of each first elastic part 400 on the limiting part 200 is T2. It should be noted that the compression degree of the first elastic part 400 when the limiting part 200 is in the first position is greater than the compression degree of the first elastic part 400 when the limiting part 200 is in the second position. Moreover, the gravity of the limiting part 200 is G, and the locking force of the locking part 300 on the locking part 210 is F. The force exertion relationship of each component in the tray assembly 10 satisfies F>T1>T2>G.

[0063] In the technical scheme of the utility model, the tray part includes a base body 100, a limiting part 200, a locking part 300 and at least two first elastic parts 400. The base body 100 has a bearing surface 110 on one side for bearing the electric energy meter, and the base body 100 is provided with a limiting groove 120 penetrating through the bearing surface 110. The limiting part 200 is connected to the base body 100. In the prior art, the limiting part of the tray assembly can only adapt to fixed single type electric meter, and when other types of electric meters need to be borne on the base body, the limiting part will interfere with them, that is, the compatibility of the existing tray assembly is poor. The limiting part 200 of the present scheme can at least partially extend out of the limiting groove 120 when in the second position, that is, it can limit and fix the electric energy meter borne on the bearing surface 110; when in the first position, the limiting part 200 can be accommodated in the limiting groove 120, that is, it can prevent the limiting part 200 from interfering with other electric energy meters. Therefore, the present scheme can expand the application range of the tray assembly 10, effectively improve the compatibility of the tray assembly 10, and adapt to a plurality of different types of electric energy meters.

[0064] Further, the locking part 300 can be detachably connected to the locking part 210, and can lock the limiting part 200 in the first position, that is, it can prevent the limiting part 200 from accidentally coming off the first position and interfering with the normal bearing of other electric energy meters. Moreover, the tray assembly 10 includes at least two first elastic parts 400, two first elastic parts 400 are respectively arranged on both sides of the locking part 300, and each first elastic part 400 is respectively connected to the base body 100 and the limiting part 200, that is, the limiting part 200 can change its position by using the elastic force of each first elastic part 400, so that the position switching operation of the limiting part 200 is convenient and fast.

[0065] Additionally, the total sum of the elastic force of each first elastic member 400 on the limiting part 200 in the first position is T1, and the total sum of the elastic force of each first elastic member 400 on the limiting part 200 in the second position is T2. The gravity of the limiting part 200 is G, and the locking force of the locking part 300 is F. The tray assembly 10 satisfies F > T1 > T2 > G, that is, the locking force of the locking part 300 is greater than the elastic force of the limiting part 200 in the first position, so the locking part 300 can effectively prevent the limiting part 200 from leaving the first position, thereby stably keeping the limiting part 200 in the first position, and improving the stability of the limiting part 200 in limiting the electric energy meter. And the elastic force of the limiting part 200 in the second position is greater than the gravity of the limiting part 200, that is, it can guarantee that the limiting part 200 is stably lifted to the second position, and improve the reliability of the limiting.

[0066] With reference to Figures 2 to 5 The specific movement of the base 100 and the limiting part 200 will be introduced below. The base 100 can be provided with a first guide hole 130, which can be in communication with the limiting groove 120. It should be noted that in some embodiments, the base 100 can directly have the first guide hole 130. The limiting part 200 can be provided with a first guide 220. The first guide 220 can be a guide block 221, which can be arranged integrally with the limiting part 200. The guide block 221 can pass through the first guide hole 130. In other embodiments, the base 100 can be provided with a guide sleeve 140, which has a first guide hole 130 inside. The limiting part 200 can be provided with a first guide 220, which can be a guide shaft 222, which can be arranged separately from the limiting part 200. The guide shaft 222 can pass through the first guide hole 130. The first guide 220 of the present scheme passes through the first guide hole 130, which can prevent the limiting part 200 from colliding with the base 100, effectively improving the stability of the movement of the limiting part 200 relative to the base 100, so that the limiting part 200 can continuously and stably switch positions.

[0067] It should be noted that in some embodiments, the limiting portion 200 can be directly provided with the second guide hole. The second guide member can be a guide block 221, which can be arranged integrally with the base body 100. The guide block 221 can pass through the second guide hole. In other embodiments, the limiting portion 200 can be connected with a guide sleeve 140, and the guide sleeve 140 has the second guide hole. The second guide member can be a guide shaft 222, which can be arranged separately from the base body 100. The guide shaft 222 can pass through the second guide hole. The specific arrangement of the second guide member and the second guide hole can be determined according to actual conditions. In the present scheme, the second guide member passes through the second guide hole, which can effectively prevent the limiting portion 200 from colliding with the base body 100, further improve the stability of the movement of the limiting portion 200 relative to the base body 100, and enable the limiting portion 200 to continuously and stably switch positions.

[0068] With reference to Figures 1 to 3 In some embodiments, the slot of the limiting slot 120 of the base body 100 can be provided with a positioning portion 150 for positioning the first guide member 220. Specifically, with reference to Figure 3 In some embodiments, the positioning portion 150 can extend into the limiting slot 120 along the left-right direction to abut against the first guide member 220, thereby inhibiting the limiting portion 200 from separating from the limiting slot 120 in the vertical direction. It should be noted that in some embodiments, the positioning portion 150 can be arranged integrally with the base body 100. In other embodiments, the positioning portion 150 can also be arranged separately from the base body 100, and the embodiments of the present application are described by taking the positioning portion 150 arranged separately from the base body 100 as an example. With reference to Figure 2 and Figure 3 The tray assembly 10 includes a cover plate 170, and the cover plate 170 has a positioning portion 150 for limiting the limiting portion 200. The positioning portion 150 of the present scheme can abut against the first guide member 220, and the first guide member 220 is connected with the limiting portion 200, so that the positioning portion 150 can effectively inhibit the limiting portion 200 from separating from the limiting slot 120, prevent the limiting portion 200 from separating from the base body 100 during position switching, and improve the stability of the assembly connection between the limiting portion 200 and the base body 100. That is, the first guide member 220 can guide and position the movement of the limiting portion 200.

[0069] With reference to Figure 5 and Figure 6, the specific connection of the first elastic member 400, the base 100 and the limiting part 200 will be introduced. In some embodiments, the tray assembly 10 comprises three first elastic members 400, and each first elastic member 400 can be arranged at intervals around the locking part 300. The interval between any two adjacent first elastic members 400 can be uniform or non-uniform. Specifically, referring to Figure 5 the orientation, the first first elastic member 400 can be located at the left end of the locking part 300, the second first elastic member 400 can be located at the right end of the locking part 300, and the third first elastic member 400 can be located at the rear end of the locking part 300. The above arrangement of the plurality of first elastic members 400 in the present scheme can adapt to the specific structure of the second limiting strip 250, and ensure the uniformity of the elastic force received by the limiting part 200.

[0070] Referring to Figure 3 and Figure 4 In some embodiments, the limiting part 200 is provided with a plurality of connecting grooves 230, and the number of connecting grooves 230 can be the same as that of the first elastic member 400. The groove of the connecting groove 230 of the limiting part 200 can be arranged towards the base 100. The base 100 is provided with a plurality of connecting blocks 160, and the number of connecting blocks 160 can be the same as that of the connecting grooves 230. The connecting block 160 can be arranged extending towards the limiting part 200. One end of each first elastic member 400 can be provided in each connecting groove 230 of the limiting part 200, and the other end can be sleeved on each connecting block 160. In other embodiments, the limiting part 200 is provided with a plurality of connecting blocks 160, and the base 100 is provided with a plurality of connecting grooves 230. One end of each first elastic member 400 can be provided in each connecting groove 230 of the base 100, and the other end can be sleeved on the connecting block 160 of the limiting part 200.

[0071] In the present scheme, one end of the first elastic member 400 can be provided in the connecting groove 230, and the other end can be sleeved on the connecting block 160, which can effectively prevent the first elastic member 400 from deflecting during elastic stretching and contraction, improve the reliability of the assembly and connection of each first elastic member 400, and ensure the stability of the position switching of the limiting part 200.

[0072] The specific arrangement of the tray assembly 10 in some embodiments will be introduced. Referring to Figure 2The limiting portion 200 includes a first limiting strip 240, which can limit the electric energy meter. T1 satisfies 10N≤T1≤17N. For example, T1 can be 10N, 12.5N, 13.63N, 14N, 14.4N, 16N, 16.2N or 17N. In this embodiment, T1 is 13.63N. T2 satisfies 2.5N≤T2≤4N. For example, T2 can be 2.5N, 2.7N, 2.85N, 3N, 3.19N, 3.5N, 3.8N or 4N. In this embodiment, T2 is 3.19N. The gravity of the first limiting strip 240 is G1, which satisfies 0.8N≤G1≤1.4N. For example, G1 can be 0.8N, 0.9N, 0.96N, 1.12N, 1.2N, 1.34N or 1.4N. In this embodiment, G1 is 1.12N. F satisfies 19N≤F≤29N. For example, F can be 19N, 20.6N, 22N, 24.8N, 26.3N or 29N. In this embodiment, F is 23.52N. The locking force of the locking portion 300 is greater than the elastic force that the limiting portion 200 receives at the first position. Therefore, the locking portion 300 can effectively prevent the limiting portion 200 from moving away from the first position, and the limiting portion 200 can be stably kept at the first position, thereby improving the stability of the limiting portion 200 in limiting the electric energy meter. In addition, the elastic force that the limiting portion 200 receives at the second position is greater than the gravity of the limiting portion 200, which can ensure that the limiting portion 200 is stably lifted to the second position, thereby improving the reliability of the limiting portion 200.

[0073] The specific configuration of the tray assembly 10 in some embodiments is described below. The limiting portion 200 includes a second limiting strip 250, which is described with reference to Figure 5The second limiting strip 250 can limit the electric energy meter. For example, the second limiting strip 250 can be in the shape of a T. T1 satisfies 16N≤T1≤25N. For example, T1 can be 16N, 17.5N, 18N, 19.4N, 20.445N, 24N or 25N, and the like. In this embodiment, T1 is taken as 20.445N for example. T2 satisfies 3N≤T2≤6N. For example, T2 can be 3N, 3.4N, 4.785N, 5N, 5.4N or 6N, and the like. In this embodiment, T2 is taken as 4.785N for example. The gravity of the second limiting strip 250 is G2, and G2 satisfies 1.1N≤G2≤1.8N. For example, G2 can be 1.1N, 1.18N, 1.25N, 1.34N, 1.45N, 1.5N, 1.72N or 1.8N, and the like. In this embodiment, G2 is taken as 1.45N for example. F satisfies 19N≤F≤29N. For example, F can be 19N, 19.5N, 22N, 23.52N, 24.4N, 26N, 27.4N or 29N, and the like. In this embodiment, F is taken as 23.52N for example. The locking force of the locking part 300 is greater than the elastic force that the limiting part 200 receives at the first position, so that the locking part 300 can effectively prevent the limiting part 200 from moving away from the first position, and further make the limiting part 200 stably keep at the first position, thereby improving the stability of the limiting part 200 in limiting the electric energy meter. Moreover, the elastic force that the limiting part 200 receives at the second position is greater than the gravity of the limiting part 200, that is, the limiting part 200 can be stably lifted to the second position, thereby improving the reliability of the limiting.

[0074] Referring to Figure 2 and Figure 5 , the specific configuration of the locking part 300 will be described below. In some embodiments, the locking part 300 can be arranged in the limiting groove 120, and the limiting part 200 can be connected to the base 100. The locking part 300 comprises a first locking arm 310 and a second locking arm 320 arranged oppositely. In some embodiments, the structure of the first locking arm 310 can be the same as that of the second locking arm 320. In other embodiments, the structure of the first locking arm 310 is different from that of the second locking arm 320, and in this embodiment, the structure of the first locking arm 310 is taken as the same as that of the second locking arm 320 for example. Figure 4 The locking part 300 can be arranged to be locked by the first locking arm 310 and the second locking arm 320 moving close to each other when being pressed once. Figure 3 The locking part 300 can be arranged to be unlocked by the first locking arm 310 and the second locking arm 320 moving away from each other when being pressed twice.

[0075] It should be noted that the locking portion 210 of the limiting portion 200 can be locked by the locking portion 300. Specifically, when the limiting portion 200 is not required to limit, the limiting portion 200 can be switched from the second position to the first position, and in the process of position switching of the limiting portion 200, the locking portion 210 can press the locking portion 300 once to make the first locking arm 310 and the second locking arm 320 close to each other to clamp the locking portion 300, so that the limiting portion 200 is stably kept in the first position, that is, the interference of the limiting portion 200 extending out of the limiting groove 120 with other electric energy meters can be effectively inhibited. When the limiting portion 200 is in the first position, the first locking arm 310 and the second locking arm 320 can be away from each other to release the locking portion 210, so that the limiting portion 200 moves to the second position to realize the limiting and fixing of the target electric energy meter. It should be noted that in other embodiments, the locking portion 300 can also include a third locking arm, and each locking arm can cooperate with each other to clamp or release the locking portion 210, and the specific structure of the locking portion 300 can be determined according to the actual situation.

[0076] The first locking arm 310 and the second locking arm 320 cooperate to clamp or release the locking portion 210, so that the limiting portion 200 can be reliably kept in the target position, and the stability of the position switching of the limiting portion 200 is improved. And by making the locking portion 210 press the locking portion 300 once or twice, the limiting portion 200 can be switched between the first position and the second position, which is convenient and fast, and the position switching efficiency of the limiting portion 200 can be improved.

[0077] Reference Figures 7 to 9, the following describes the driving arrangement of the first locking arm 310 and the second locking arm 320 moving away from each other. In some embodiments, the locking portion 300 comprises a locking body 330, the first locking arm 310 can be connected to the locking body 330 and protrude from the locking body 330, and the second locking arm 320 can be connected to the locking body 330 and protrude from the locking body 330. The first locking arm 310 and the second locking arm 320 can be elastically deformed relative to the locking body 330, so that the first locking arm 310 and the second locking arm 320 can move away from each other. In other embodiments, the locking portion 300 can be provided with a driving portion, the first locking arm 310 and the second locking arm 320 are both slidingly connected to the locking body 330, and the driving portion can drive the first locking arm 310 and the second locking arm 320 to move away from each other. It should be noted that, in some embodiments, the position of the first locking arm 310 can be fixed, and the second locking arm 320 can move away from the first locking arm 310 to release the lock. In other embodiments, the position of the second locking arm 320 can be fixed, and the first locking arm 310 can move away from the second locking arm 320 to release the lock. The embodiments of the present application take the first locking arm 310 and the second locking arm 320 moving away from each other by relying on elastic deformation as an example for description, and in this scheme, the operation of moving the first locking arm 310 and the second locking arm 320 away from each other is convenient and fast, that is, the locking portion 210 can be accurately and quickly released, and the stability of the position switching of the limiting portion 200 is ensured.

[0078] With reference to Figures 7 to 9 , the following describes the driving arrangement of the first locking arm 310 and the second locking arm 320 moving away from each other. In some embodiments, the locking portion 300 comprises a locking body 330, the first locking arm 310 can be connected to the locking body 330 and protrude from the locking body 330, and the second locking arm 320 can be connected to the locking body 330 and protrude from the locking body 330. The first locking arm 310 and the second locking arm 320 can be elastically deformed relative to the locking body 330, so that the first locking arm 310 and the second locking arm 320 can move away from each other. In other embodiments, the locking portion 300 can be provided with a driving portion, the first locking arm 310 and the second locking arm 320 are both slidingly connected to the locking body 330, and the driving portion can drive the first locking arm 310 and the second locking arm 320 to move away from each other. It should be noted that, in some embodiments, the position of the first locking arm 310 can be fixed, and the second locking arm 320 can move away from the first locking arm 310 to release the lock. In other embodiments, the position of the second locking arm 320 can be fixed, and the first locking arm 310 can move away from the second locking arm 320 to release the lock. The embodiments of the present application take the first locking arm 310 and the second locking arm 320 moving away from each other by relying on elastic deformation as an example for description, and in this scheme, the operation of moving the first locking arm 310 and the second locking arm 320 away from each other is convenient and fast, that is, the locking portion 210 can be accurately and quickly released, and the stability of the position switching of the limiting portion 200 is ensured.

[0079] With reference to Figure 3 and Figure 4It should be noted that the locking portion 210 of the limiting portion 200 can be provided with a clamping groove 211. The first locking arm 310 can be provided with a first clamping protrusion 311, and the second locking arm 320 can be provided with a second clamping protrusion 321. The first clamping protrusion 311 and the second clamping protrusion 321 can have the same structure, and both the first clamping protrusion 311 and the second clamping protrusion 321 can be arranged in the clamping groove 211. When the first locking arm 310 and the second locking arm 320 are close to each other to clamp the locking portion 210, the first clamping protrusion 311 can pass through the clamping groove 211 of the locking portion 210, and the second clamping protrusion 321 can pass through the clamping groove 211 of the locking portion 210, so as to improve the stability of the connection between the locking portion 300 and the limiting portion 200, and to stably keep the limiting portion 200 in the first position.

[0080] The stop portion 341 can press the first locking arm 310 and the second locking arm 320 in the process of pressing the locking portion 300 by the locking portion 210, so that the first locking arm 310 and the second locking arm 320 are relatively close to be locked, that is, the first locking arm 310 and the second locking arm 320 can be driven to be relatively close by the pressing force of the locking portion 210, without the need to additionally increase a power source, so that the overall driving structure is simple and the driving process is convenient and fast.

[0081] Referring to Figure 3 , Figure 4 and Figures 7 to 9 , the separate arrangement of the first locking arm 310, the second locking arm 320 and the stop portion 341 will be introduced below. In some embodiments, the locking portion 300 includes a lock seat 340, and the lock seat 340 is provided with the stop portion 341. The locking portion 300 includes a second elastic member 350, and two ends of the second elastic member 350 are connected with the lock seat 340 and the lock body 330 respectively, that is, the lock body 330 can move relative to the lock seat 340 by the elastic force provided by the second elastic member 350, and then the first locking arm 310 and the second locking arm 320 connected with the lock body 330 can move relative to the stop portion 341. Specifically, the second elastic member 350 can be compressed in the process that the first locking arm 310 and the second locking arm 320 are close to each other, so as to drive the first locking arm 310 and the second locking arm 320 to move away from the stop portion 341 when being pressed again, so that the stop portion 341 no longer exerts pressure on the first locking arm 310 and the second locking arm 320, that is, the first locking arm 310 and the second locking arm 320 can be released from the locking of the locking portion 210 by elastic deformation. In other embodiments, the locking portion 300 includes a driving portion, and two ends of the driving portion are connected with the lock seat 340 and the lock body 330 respectively. The driving portion can be provided with a sensor, and the locking portion 210 can be sensed by the sensor when being pressed on the locking portion 300 again, that is, the driving portion can directly drive the first locking arm 310 and the second locking arm 320 to move away from the stop portion 341. The embodiments of the present application take the example that the locking portion 300 moves away from the stop portion 341 by the elastic force of the second elastic member 350 for illustration.

[0082] It should be noted that the tray assembly 10 can be provided with a plurality of second elastic members 350, and the adjacent two second elastic members 350 can be arranged at intervals. Each second elastic member 350 can provide an elastic force for the first and second locking arms 310 and 320 to disengage from the stop portion 341, thereby ensuring the reliability of movement. The first and second locking arms 310 and 320 of the present scheme can disengage from the stop portion 341 by using the elastic force of the second elastic member 350, and the overall structure is simple and the position switching operation is convenient and fast, thereby ensuring the stability of position switching.

[0083] With reference to Figures 7 to 9 The locking and unlocking processes of the locking portion 300 on the limiting portion 200 will be introduced below. In some embodiments, the locking portion 300 includes a movable member 331 which can be connected to the lock body 330 and located between the lock body 330 and the second elastic member 350. The lock seat 340 can be provided with a locking groove 342. The movable member 331 has an unlocking position and a locking position relative to the lock seat 340. Specifically, when the movable member 331 is in the unlocking position, the movable member 331 can disengage from the locking groove 342, that is, the movable member 331 is not fixedly connected to the lock seat 340, so that the second elastic member 350 can push the first and second locking arms 310 and 320 away from the stop portion 341, so that the first and second locking arms 310 and 320 can release the locking portion 210 to achieve unlocking; when the movable member 331 is in the locking position, the movable member 331 can at least partially enter the locking groove 342, that is, the movable member 331 is connected to the lock seat 340 and the lock body 330, so that the stop portion 341 can stably abut against the first and second locking arms 310 and 320 to clamp the locking portion 210 to achieve locking.

[0084] It should be noted that when the locking portion 300 is pressed once, the movable member 331 can be in the locking position. When the locking portion 300 is pressed twice, the movable member 331 can be switched from the locking position to the unlocking position. The switching operation of the locking and unlocking positions of the locking portion 300 of the present scheme is convenient and fast, and can adapt to the position switching process of the limiting portion 200, achieve the pressing locking and unlocking of the limiting portion 200, and improve the compatibility of the tray assembly 10.

[0085] With reference to Figures 7 to 9The cooperation between the lock body 330 and the lock seat 340 is introduced below. In some embodiments, the lock body 330 can be provided with a guide protrusion 332, and the lock seat 340 can be provided with a guide groove 343. When the movable piece 331 is switched from the locked position to the unlocked position, the guide protrusion 332 can slide in the guide groove 343. In other embodiments, the lock body 330 can be provided with a guide groove 343, and the lock seat 340 can be provided with a guide protrusion 332. When the movable piece 331 is switched from the locked position to the unlocked position, the guide protrusion 332 can slide in the guide groove 343. By providing the guide protrusion 332 and the guide groove 343, the lock body 330 can move accurately relative to the lock seat 340, and the reliability of the locking and unlocking process is ensured.

[0086] The second aspect of the utility model discloses a kind of detection devices, and detection device includes the tray assembly 10 and detection component of above-mentioned embodiment.The detection component is used to detect the electric energy meter carried on the tray assembly 10.The detection device of the present scheme can detect a variety of electric energy meter, can satisfy a variety of detection needs.Moreover, limiting portion 200 can change its position using the elastic force of each first elastic member 400, so that the position switching operation of limiting portion 200 is convenient and fast.

[0087] It should be noted that if the utility model embodiment involves directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly. When introducing directional references in specific embodiments, if there is no special limitation that the direction is unidirectional, the direction can be unidirectional or bidirectional (two parallel and opposite directions), and whether it is unidirectional or bidirectional is based on the ability of ordinary skilled personnel in the art to implement. When the directional reference is bidirectional, it is considered that two different embodiments are introduced simultaneously.

[0088] In addition, if the utility model embodiment involves descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or", or "and / or" appears throughout the text, it means that the three parallel solutions include the A solution, or the B solution, or the A and B solutions are satisfied simultaneously. In addition, the technical solutions of each embodiment can be combined with each other, but must be based on the ability of ordinary skilled personnel in the art to implement, and when the combination of technical solutions appears contradictory or unimplementable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.

[0089] The above are only preferred embodiments of the present application, and do not limit the patent range of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields under the utility model concept of the present application are included in the patent protection range of the present application.

Claims

1. A tray assembly for supporting an electricity meter, characterized in that, The tray assembly includes: The base has a bearing surface on one side for supporting the energy meter, and the base is provided with a limiting groove that penetrates the bearing surface; A limiting part is connected to the base body. The limiting part has a first position that is accommodated in the limiting groove and a second position that extends at least partially out of the limiting groove. In the second position, the limiting part is used to position the energy meter that is supported on the bearing surface. The limiting part is provided with a locking part. A locking part is used to detachably connect the locking part to lock the limiting part in the first position; At least two first elastic elements are provided on both sides of the locking part, and each first elastic element is connected to the base and the limiting part respectively. Wherein, at the first position, the sum of the elastic forces of each of the first elastic elements on the limiting part is T1, at the second position, the sum of the elastic forces of each of the first elastic elements on the limiting part is T2, the gravity of the limiting part is G, the locking force of the locking part is F, and the tray assembly satisfies: F>T1>T2>G.

2. The tray assembly as claimed in claim 1, characterized in that, The substrate is provided with a first guide hole, which communicates with the limiting groove; the limiting portion is provided with a first guide member, which passes through the first guide hole; and / or... The limiting groove is provided with a second guide member, and the limiting part is provided with a second guide hole, through which the second guide member passes.

3. The tray assembly as claimed in claim 1, characterized in that, The base is provided with a first guide hole, which communicates with the limiting groove. The limiting part is provided with a first guide member, which passes through the first guide hole. The opening of the limiting groove is provided with a positioning part, which abuts against the first guide member to prevent the limiting part from disengaging from the limiting groove.

4. The tray assembly as claimed in claim 1, characterized in that, The tray assembly includes three first elastic members, each of which is arranged at intervals around the locking portion. The limiting portion has multiple connecting grooves with the openings facing the base. The base has multiple connecting blocks extending toward the limiting portion. One end of each first elastic member passes through each of the connecting grooves, and the other end is sleeved on each of the connecting blocks.

5. The tray assembly as claimed in claim 1, characterized in that, The limiting part includes a first limiting strip, wherein T1 satisfies: 10N≤T1≤17N, T2 satisfies: 2.5N≤T2≤4N, the weight of the first limiting strip is G1, G1 satisfies: 0.8N≤G1≤1.4N, F satisfies: 19N≤F≤29N; and / or, The limiting part includes a second limiting bar, wherein T1 satisfies: 16N≤T1≤25N, T2 satisfies: 3N≤T2≤6N, the weight of the second limiting bar is G2, G2 satisfies: 1.1N≤G2≤1.8N, and F satisfies: 19N≤F≤29N.

6. The tray assembly as claimed in claim 1, characterized in that, The locking part is disposed in the limiting groove and connected to the base. The locking part includes a first locking arm and a second locking arm. The locking part is configured such that when subjected to a first pressing, the first locking arm and the second locking arm move closer to each other, and when subjected to a second pressing, the first locking arm and the second locking arm move further away from each other. During the process of the limiting part switching from the second position to the first position, the locking part presses against the locking part once, so that the first locking arm and the second locking arm move closer to each other to clamp the locking part, thereby keeping the limiting part in the first position; when the limiting part is in the first position and presses against the locking part a second time, the first locking arm and the second locking arm can move away from each other to release the locking part, so that the limiting part moves to the second position.

7. The tray assembly as claimed in claim 6, characterized in that, The locking part includes a lock body, and the first locking arm and the second locking arm are both connected to and protrude from the lock body. The first locking arm and the second locking arm are both configured to be elastically deformable relative to the lock body so that the first locking arm and the second locking arm can move away from each other.

8. The tray assembly as claimed in claim 7, characterized in that, The locking part includes a stop part. During the process of the locking part pressing against the locking part once, the stop part presses against the first locking arm and the second locking arm so that the first locking arm and the second locking arm move closer to each other.

9. The tray assembly as claimed in claim 8, characterized in that, The locking part includes a lock seat with the stop portion and a second elastic member connected to the lock seat and the lock body respectively. When the first lock arm and the second lock arm approach each other, the second elastic member is compressed so as to drive the first lock arm and the second lock arm away from the stop portion when subjected to secondary pressure.

10. A calibration device, characterized in that, include: The tray assembly as described in any one of claims 1-9; as well as, A detection component for detecting the energy meter carried on the tray assembly.

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