Guideway metering terminal

Abstract

The application belongs to the technical field of metering equipment, and discloses a guide rail type metering terminal. The metering terminal can be installed on a guide rail, and comprises a terminal body, a first fixed boss, a second fixed boss and a movable buckle assembly. The first fixed boss and the second fixed boss are arranged on the bottom surface of the body in a spaced manner, and a first clamping groove is formed between the first fixed boss and the bottom surface of the body. One side of the guide rail can be clamped into the first clamping groove. The movable buckle assembly comprises a movable boss, an elastic member and a limiting table. A second clamping groove is formed between the end of the movable boss facing the first clamping groove and the bottom surface of the body. The elastic member can be extended or retracted to make the second clamping groove close to or away from the first clamping groove, so that the other side of the guide rail is clamped into the second clamping groove or the second clamping groove avoids the guide rail. The limiting table cooperates with a limiting hole to limit the sliding range of the movable boss. The guide rail type metering terminal proposed by the application does not need to use additional auxiliary tools when being installed and disassembled, and is simple to operate, time-saving and labor-saving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metering equipment, in particular to a guide rail type metering terminal. BACKGROUND

[0002] As Figure 1 shown is a schematic view of a guide rail type electric energy meter installed on a guide rail, one side of the bottom of the electric energy meter is provided with a dovetail groove, and the other side is provided with a movable buckle. When installing, first, the dovetail groove on one side of the bottom of the electric energy meter is clamped on one side of the guide rail, and then the electric energy meter is rotated, so that the inclined surface of the movable buckle on the other side of the bottom of the electric energy meter is pressed on the other side of the guide rail, and a relatively large force is pressed downward, and the guide rail is clamped by the free elasticity of the movable buckle, so as to realize the fixation of the electric energy meter on the guide rail. When disassembling the electric energy meter, a slot head is inserted into the tail groove of the movable buckle, the movable buckle is pried to move away from the electric energy meter, so that the electric energy meter is separated from the guide rail, and the disassembly of the electric energy meter is realized.

[0003] The installation structure of the guide rail type electric energy meter is complicated, time-consuming and laborious, which leads to low work efficiency, and the same problem exists for other guide rail type metering terminals.

[0004] Therefore, there is an urgent need for a guide rail type metering terminal to solve the above problems in the prior art. SUMMARY

[0005] The purpose of the present application is to provide a guide rail type metering terminal which can be installed and disassembled without any tools, and is convenient and reliable in field use.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] A guide rail type metering terminal, the metering terminal can be installed on a guide rail, the metering terminal comprises:

[0008] a terminal body, the terminal body has a body bottom surface;

[0009] a first fixing boss and a second fixing boss are arranged on the body bottom surface, a first clamping groove is formed between the first fixing boss and the body bottom surface, one side of the guide rail can be clamped into the first clamping groove, and a mounting groove is arranged on the second fixing boss, and the opening of the mounting groove faces the first fixing boss;

[0010] The active buckle assembly comprises an active boss and an elastic member, the active boss is slidingly arranged in the mounting groove, two ends of the elastic member abut against the active boss and the bottom of the mounting groove respectively, the active boss and the bottom of the body form a second clamping groove at one end of the active boss, the elastic member can make the second clamping groove close to or away from the first clamping groove, so that the other side of the guide rail is clamped into the second clamping groove or the second clamping groove avoids the guide rail.

[0011] The active buckle assembly further comprises a limiting table, the limiting table is arranged on the top surface of the active boss, a limiting hole is arranged on the wall of the mounting groove, the limiting table can move in the limiting hole, a deformation groove is arranged on the active boss, the deformation groove is arranged on the lower side of the limiting table, so that the limiting table can be deformed towards the deformation groove.

[0012] As an optional solution, the second fixed boss is provided with a plurality of second fixed bosses, each of the second fixed bosses is provided with one of the mounting grooves, and each of the mounting grooves is correspondingly provided with a group of the active buckle assemblies.

[0013] As an optional solution, the bottom of the second clamping groove is a plane matched with the end surface of the guide rail, the wall of the second clamping groove on the active boss is a first inclined surface, the first inclined surface is inclined outward from the bottom of the second clamping groove, so that the width of the bottom of the second clamping groove is smaller than the width of the opening of the second clamping groove.

[0014] As an optional solution, the active boss is provided with a second inclined surface at the end of the second clamping groove, the second inclined surface is arranged on the side away from the bottom of the body, and the distance from the second inclined surface to the bottom of the body gradually decreases from the bottom of the second clamping groove to the opening of the second clamping groove.

[0015] As an optional solution, the limiting table and the deformation groove are arranged at one end of the active boss towards the bottom of the mounting groove.

[0016] As an optional solution, the limiting table is provided with at least two limiting tables, and the two limiting tables are arranged on the two sides of the active boss along the sliding direction of the active boss.

[0017] As an optional solution, the limiting table is provided with a third inclined surface on the side towards the mounting groove.

[0018] As an optional solution, the active boss is provided with an avoiding groove on the side towards the bottom of the mounting groove, one end of the elastic member is limited in the avoiding groove, and the other end abuts against the bottom of the mounting groove.

[0019] Optionally, a limiting column is arranged in the avoiding groove, and one end of the elastic member is sleeved on the limiting column.

[0020] Optionally, a protrusion is arranged on the groove wall of the mounting groove, the protrusion is located at two sides of the elastic member, the limiting hole is arranged at the protrusion, a sliding plane is correspondingly arranged on the movable boss, the sliding plane can slide relative to the protrusion, the limiting platform is arranged on the sliding plane, and the protrusion extends to the outside of the mounting groove.

[0021] Beneficial effects:

[0022] When the metering terminal needs to be installed on the guide rail, the second baffle of the guide rail is first clamped into the second clamping groove and presses the movable boss, the elastic member is compressed until the first fixed boss is staggered with the first baffle, the first fixed boss is rotated to the direction of the second baffle, the bottom surface of the body is attached to the first baffle, then the first baffle is clamped into the first clamping groove under the elastic recovery of the elastic member, and the second clamping groove keeps the state of clamping with the second baffle under the elastic force of the elastic member, so that the metering terminal is clamped on the first baffle and the second baffle of the guide rail, that is, the metering terminal is firmly installed on the guide rail. When the metering terminal needs to be disassembled, the metering terminal is moved to press the second baffle against the movable boss, the elastic member is compressed, the first fixed boss is moved away from the first baffle, then the metering terminal is rotated away from the first baffle, the metering terminal is separated from the first baffle, and then the metering terminal is moved to separate from the second baffle, that is, the disassembly of the metering terminal is completed. During the installation and disassembly of the metering terminal on the guide rail, no auxiliary tool is needed, the operation is quick, and the work efficiency is greatly improved. In addition, the movable buckle assembly further comprises a limiting platform, the limiting platform limits the sliding range of the movable boss in cooperation with the limiting hole, and a deformation groove is arranged on the movable boss, so that the limiting platform can be deformed to the direction of the deformation groove, so that the limiting platform can more easily enter the mounting groove and be assembled with the limiting hole. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a connection diagram of the metering terminal and the guide rail in the prior art;

[0024] Figure 2 is a schematic diagram of the assembly structure of the metering terminal provided by the application;

[0025] Figure 3 is a schematic diagram of the structure of the movable buckle assembly of the assembly of the metering terminal provided by the application pulled out of the mounting groove;

[0026] Figure 4 is Figure 3 is an enlarged view of the structure at A in FIG.

[0027] Figure 5 is a structure schematic diagram of the metering terminal before installation provided by the present application Figure 1 ;

[0028] Figure 6 is a structure schematic diagram of the metering terminal after installation provided by the present application

[0029] Figure 7 is a structure schematic diagram of the metering terminal after dismounting provided by the present application

[0030] Figure 8 is a structure schematic diagram of the metering terminal before installation provided by the present application Figure 2 .

[0031] in the figure:

[0032] 1', electric energy meter; 2', movable buckle; 3', guide rail;

[0033] 1, metering terminal; 11, terminal body; 111, body bottom surface; 112, front shell; 113, rear shell; 12, first fixing boss; 121, first clamping groove; 13, second fixing boss; 131, mounting groove; 1311, protrusion; 132, limiting hole; 14, movable buckle assembly; 141, movable boss; 1411, second clamping groove; 1412, first inclined surface; 1413, second inclined surface; 1414, deformation groove; 1415, avoiding groove; 1416, limiting column; 1417, sliding plane; 142, elastic piece; 143, limiting table; 1431, third inclined surface;

[0034] 2, guide rail; 21, first baffle; 22, second baffle. DETAILED DESCRIPTION

[0035] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures.

[0036] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature is "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0038] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and the like orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0039] As shown in Figure 2 , the present embodiment provides a guide rail type meter terminal, the meter terminal 1 can be installed on the guide rail 2 to fixedly install the meter terminal 1. Specifically, the meter terminal 1 can be an electric energy meter or other electric energy instrument, and the mounting form in the present embodiment can be adopted for terminal instruments that need to be clamped on the guide rail 2.

[0040] Specifically, as shown in Figure 2 , the meter terminal 1 includes a terminal body 11, the terminal body 11 has a body bottom surface 111, when the meter terminal 1 is installed on the guide rail 2, the body bottom surface 111 of the terminal body 11 faces the guide rail 2. The terminal body 11 includes a front shell 112 and a rear shell 113, the front shell 112 and the rear shell 113 are buckled to form an enclosed space, the inside of the enclosed space is installed with parts such as a circuit board, and the front shell 112 and the rear shell 113 are connected by buckle assembly.

[0041] Referring to Figure 5 , the guide rail 2 is provided in a U shape, the two ends of the U shape are respectively bent outward to form a first baffle 21 and a second baffle 22, after the meter terminal 1 is installed on the guide rail 2, the first baffle 21 and the second baffle 22 on the side facing the body bottom surface 111 are parallel planes with the body bottom surface 111, and the first baffle 21 and the second baffle 22 can be fitted with the body bottom surface 111 when the terminal body 11 is installed on the guide rail 2.

[0042] Further, as shown in Figure 3 and Figure 4As shown, the metering terminal 1 also includes a first fixed protrusion 12 and a second fixed protrusion 13. The first fixed protrusion 12 and the second fixed protrusion 13 are spaced apart on the bottom surface 111 of the main body. The first fixed protrusion 12 and the second fixed protrusion 13 are preferably arranged in parallel, and the distance between them is greater than the width of the guide rail 2 to form a space to accommodate the guide rail 2. A first snap-fit ​​groove 121 is formed between the first fixed protrusion 12 and the bottom surface 111 of the main body. The first baffle 21 of the guide rail 2 can be snapped into the first snap-fit ​​groove 121, so that the metering terminal 1 can be hung on the first baffle 21 of the guide rail 2. The second fixed protrusion 13 is provided with a mounting groove 131, and the opening of the mounting groove 131 faces the first fixed protrusion 12.

[0043] To ensure the metering terminal 1 is securely mounted on the guide rail 2, it is also necessary to connect the metering terminal 1 to the second baffle 22 of the guide rail 2. Therefore, as follows... Figure 4 As shown, the metering terminal 1 also includes a movable latching assembly 14, which includes a movable boss 141 and an elastic member 142. The movable boss 141 is slidably disposed in the mounting groove 131. The two ends of the elastic member 142 respectively abut against the bottom of the movable boss 141 and the mounting groove 131. A second latching groove 1411 is formed between the end of the movable boss 141 facing the first latching groove 121 and the bottom surface 111 of the main body. The extension and retraction of the elastic member 142 can make the second latching groove 1411 move closer to or away from the first latching groove 121, so that the other side of the guide rail 2 can be engaged in the second latching groove 1411 or the second latching groove 1411 can avoid the guide rail 2. In this embodiment, the elastic member 142 is a spring, which has good elastic deformation capability.

[0044] like Figure 5-7 The diagram shows the installation process of metering terminal 1 and guide rail 2. When metering terminal 1 needs to be installed on guide rail 2, follow the steps below. Figure 5 Move the metering terminal 1 in the direction of the middle arrow a, first insert the second baffle 22 of the guide rail 2 into the second locking groove 1411, and press against the movable boss 141, so that the movable boss 141 compresses the elastic element 142 until the first fixed boss 12 is misaligned with the first baffle 21, and then press... Figure 5 Rotate the metering terminal 1 in the direction of arrow b, so that the bottom surface 111 of the main body is in contact with the first baffle 21. Then, under the rebound action of the elastic member 142, the first baffle 21 is engaged with the first locking groove 121, and under the elastic force of the elastic member 142, the second locking groove 1411 remains engaged with the second baffle 22. Thus, the metering terminal 1 is engaged with the first baffle 21 and the second baffle 22 of the guide rail 2, which means that the metering terminal 1 is firmly installed on the guide rail 2, as shown in the figure. Figure 6 As shown. When it is necessary to disassemble metering terminal 1, press... Figure 7The middle arrow c direction moves the meter terminal 1, the second baffle 22 presses the movable boss 141, the movable boss 141 compresses the elastic piece 142, the first fixed boss 12 moves to the direction away from the first baffle 21 to avoid the first baffle 21, then, presses Figure 7 The middle arrow d direction rotates the meter terminal 1, the first fixed boss 12 will be separated from the first baffle 21, continues to move and makes the meter terminal 1 separate from the second baffle 22, that is, completes the disassembly of the meter terminal 1. The installation and disassembly of the meter terminal 1 on the guide rail 2, both do not need to use auxiliary tools, the operation is quick, greatly improves the work efficiency.

[0045] Preferably, please refer back to Figure 3 , the movable buckle assembly 14 in the embodiment is provided with two groups, and the two groups of movable buckle assemblies 14 are arranged at two ends of the bottom surface 111 of the body, so that the terminal body 11 forms two spaced force points on the guide rail 2, thereby being capable of being stably installed on the guide rail 2. It can be understood that only one movable buckle assembly 14 can also be arranged, and the movable buckle assembly 14 is arranged to be relatively wide in size, and the stable support of the terminal body 11 can also be achieved; of course, for the meter terminal 1 with a larger size, more than two movable buckle assemblies 14 can also be arranged, and the number of the movable buckle assemblies 14 is not limited herein.

[0046] Further, please refer to Figure 4 , the end of the movable boss 141 provided with the second clamping groove 1411 is provided with a second inclined surface 1413, the second inclined surface 1413 is arranged on the side of the movable boss away from the bottom surface 111 of the body, and the distance from the second inclined surface 1413 to the bottom surface 111 of the body gradually decreases from the groove bottom of the second clamping groove 1411 to the groove opening of the second clamping groove 1411. When the second baffle 22 presses the movable boss 141, the second baffle 22 slides on the second inclined surface 1413, so that the second baffle 22 can more easily push away the movable boss 141 and clamp into the second clamping groove 1411. When the meter terminal 1 is installed on the guide rail 2, as shown in Figure 8 , the first fixed boss 12 can be clamped on the first baffle 21 first, and then pressed Figure 8 The middle arrow e direction rotates the meter terminal 1, and the end of the terminal body 11 provided with the movable boss 141 is pressed to the guide rail 2, the movable boss 141 will abut against the second baffle 22, and gradually retract to the elastic piece 142 direction to make the second baffle 22 clamp into the second clamping groove 1411. Especially for the guide rail 2 with the first baffle 21 located on the upper side and the second baffle 22 located on the lower side, the meter terminal 1 is hung on the first baffle 21 first, and then rotated and pressed, which is more labor-saving for installation.

[0047] Further, please continue to refer to Figure 4The bottom of the second locking groove 1411 is a plane adapted to the end face of the guide rail 2. The groove wall of the second locking groove 1411 located on the movable boss 141 is set as a first inclined surface 1412. The first inclined surface 1412 slopes outward from the bottom of the second locking groove 1411, so that the width of the bottom of the second locking groove 1411 is smaller than the width of the opening of the second locking groove 1411. During disassembly, refer to... Figure 7 When the end of the metering terminal 1 with the first fixed protrusion 12 is rotated by a certain angle, the second snap-fit ​​groove 1411 needs to rotate relative to the second baffle 22. The setting of the first inclined surface 1412 can provide clearance space for the second baffle 22, so that the groove wall of the second snap-fit ​​groove 1411 will not interfere with the second baffle 22 during the rotation process.

[0048] Similarly, such as Figure 7 As shown, in order to make the first baffle 21 and the first card slot 121 cooperate more smoothly, the first card slot 121 is set with the same structural form as the second card slot 1411, which will not be described again here.

[0049] Furthermore, such as Figure 4 As shown, the movable snap fastener assembly 14 also includes a limiting member, which is configured to limit the sliding range of the movable boss 141 so that the movable boss 141 slides within a certain range, thereby preventing the spring from excessively stretching and contracting and affecting the structural stability of the movable snap fastener assembly 14.

[0050] Specifically, such as Figure 4 The limiting member is preferably a limiting platform 143, which is disposed on the top surface of the movable boss 141. A limiting hole 132 is correspondingly provided on the groove wall of the mounting groove 131. The limiting hole 132 extends along the sliding direction of the movable boss 141, and the limiting platform 143 can move within the limiting hole 132. A deformation groove 1414 is provided on the movable boss 141, which is disposed on the lower side of the limiting platform 143, so that the limiting platform 143 can deform in the direction of the deformation groove 1414. To prevent the movable boss 141 from wobbling within the mounting groove 131, a slight gap is maintained between the movable boss 141 and the groove wall of the mounting groove 131. The top of the limiting platform 143 protrudes above the groove wall of the mounting groove 131. When assembling the movable boss 141 and the elastic element 142 into the mounting groove 131, the movable boss 141 needs to deform to allow the limiting platform 143 to be inserted into the mounting groove 131. Specifically, the movable boss 141 is made of a deformable and resilient material, such as rubber or resin. The limiting platform 143 and the deformation groove 1414 are located at the end of the movable boss 141 facing the bottom of the mounting groove 131. The limiting platform 143 can deform towards the deformation groove 1414 to avoid obstructing the groove wall of the mounting groove 131, thereby allowing the movable snap-fit ​​assembly 14 to be inserted into the mounting groove 131.

[0051] The movable range of the movable boss 141 is the length of the limiting hole 132, and the limiting hole 132 can guide the sliding of the movable boss 141. Preferably, at least two limiting platforms 143 are arranged to provide better guiding for the sliding of the movable boss 141. In the embodiment, two limiting platforms 143 are arranged on both sides of the movable boss 141 along the sliding direction of the movable boss 141.

[0052] As shown in Figure 4 Preferably, the limiting platform 143 is provided with a third inclined surface 1431 on the side facing the mounting groove 131. When the movable boss 141 is assembled, the limiting platform 143 abuts against the second fixed boss 13. The second fixed boss 13 presses the limiting platform 143, and the limiting platform 143 moves in the direction of the deformation groove 1414 under the force. The third inclined surface 1431 gradually abuts against the groove wall of the mounting groove 131 from bottom to top until it completely extends into the mounting groove 131. The movable boss 141 is continuously pushed into the mounting groove 131, and the limiting platform 143 is aligned with the limiting hole 132. The limiting platform 143 is pressed into the limiting hole 132 by the deformation and rebound of the movable boss 141. Under the elastic force of the elastic member 142, the limiting platform 143 abuts against the inner wall of the limiting hole 132, thereby preventing the movable boss 141 from being popped out of the mounting groove 131. The elastic member 142 is limited between the movable boss 141 and the groove bottom of the mounting groove 131, and the assembly of the movable boss 141, the elastic member 142 and the mounting groove 131 is achieved.

[0053] Preferably, as shown in Figure 4 The groove wall of the mounting groove 131 is provided with a protrusion 1311, and the limiting hole 132 is arranged at the protrusion 1311. The protrusion 1311 can block the elastic member 142 to prevent the elastic member 142 from deviating and affecting the elastic abutting effect of the movable boss 141. A sliding plane 1417 is correspondingly arranged on the movable boss 141, and the limiting platform 143 is arranged on the sliding plane 1417. The sliding plane 1417 facilitates the relative sliding of the movable boss 141 and the protrusion 1311. Meanwhile, the sliding plane 1417 reduces the thickness of the movable boss 141, which is more conducive to compression deformation.

[0054] Further, the protrusion 1311 extends to the outside of the mounting groove 131, thereby increasing the abutting length of the sliding plane 1417 and the protrusion 1311, and making the movable bayonet assembly 14 more stably installed in the mounting groove 131. The end of the protrusion 1311 extending out of the mounting groove 131 is provided with an inclined surface, which provides a transition for the movement of the second baffle 22 to the bottom surface 111 of the body, so that the second baffle 22 is more easily clamped into the second clamping groove 1411.

[0055] Further, asFigure 4 As shown, the movable boss 141 is provided with an avoiding groove 1415 on the side of the groove bottom of the mounting groove 131, one end of the elastic member 142 is limited in the avoiding groove 1415, and the other end abuts against the groove bottom of the mounting groove 131. The avoiding groove 1415 provides avoiding space for the installation of the elastic member 142, which is beneficial to reduce the design size of the second fixing boss 13 and the movable boss 141.

[0056] Preferably, as shown, Figure 4 As shown, the avoiding groove 1415 is provided with a limiting column 1416, and one end of the elastic member 142 is sleeved on the limiting column 1416. The limiting column 1416 can provide guiding effect for the elastic member 142, which is beneficial to prevent the elastic member 142 from being twisted and deformed.

[0057] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation manners of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the implementation manners. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A guide rail type metering terminal, the metering terminal (1) being capable of being installed on a guide rail (2), characterized in that, The meter terminal (1) comprises: a terminal body (11) having a body bottom surface (111); a first fixed boss (12) and a second fixed boss (13) are arranged on the body bottom surface (111) in a spaced manner, a first clamping groove (121) is formed between the first fixed boss (12) and the body bottom surface (111), one side of the guide rail (2) can be clamped into the first clamping groove (121), and a mounting groove (131) is arranged on the second fixed boss (13), and the opening of the mounting groove (131) faces the first fixed boss (12); a movable clamping assembly (14) comprising a movable boss (141) and an elastic member (142), the movable boss (141) is slidingly arranged in the mounting groove (131), the two ends of the elastic member (142) abut against the movable boss (141) and the groove bottom of the mounting groove (131) respectively, and a second clamping groove (1411) is formed between one end of the movable boss (141) facing the first clamping groove (121) and the body bottom surface (111), and the elastic member (142) can make the second clamping groove (1411) close to or away from the first clamping groove (121), so that the other side of the guide rail (2) is clamped into the second clamping groove (1411) or the second clamping groove (1411) avoids the guide rail (2); the elastic member (142) is a spring; the movable clamping assembly (14) further comprises a limiting table (143), the limiting table (143) is arranged on the top surface of the movable boss (141), a limiting hole (132) is correspondingly arranged on the groove wall of the mounting groove (131), the limiting hole (132) extends along the sliding direction of the movable boss (141), the limiting table (143) can move in the limiting hole (132), the limiting hole (132) can provide a guiding effect for the sliding of the movable boss (141), a deformation groove (1414) is arranged on the movable boss (141), and the deformation groove (1414) is arranged below the limiting table (143), so that the limiting table (143) can be deformed in the direction of the deformation groove (1414); the limiting table (143) and the deformation groove (1414) are arranged at one end of the movable boss (141) facing the groove bottom of the mounting groove (131).

2. The rail-mounted metering terminal of claim 1, wherein, The second fixed boss (13) is provided with a plurality of second fixed bosses (13), one mounting groove (131) is arranged on each second fixed boss (13), and a set of movable clamping assemblies (14) is correspondingly arranged in each mounting groove (131).

3. The rail-mounted metering terminal of claim 1, wherein, The bottom of the second clamping groove (1411) is a plane matched with the end surface of the guide rail (2), the groove wall of the second clamping groove (1411) on the movable boss (141) is provided with a first inclined surface (1412), the first inclined surface (1412) is inclined outward from the bottom of the second clamping groove (1411), so that the width of the bottom of the second clamping groove (1411) is smaller than the width of the opening of the second clamping groove (1411).

4. The rail-mounted metering terminal of claim 3, wherein, The end of the movable boss (141) provided with the second clamping groove (1411) is provided with a second inclined surface (1413), the second inclined surface (1413) is arranged on the side away from the body bottom surface (111), and the distance from the second inclined surface (1413) to the body bottom surface (111) gradually decreases from the bottom of the second clamping groove (1411) to the opening of the second clamping groove (1411).

5. The rail-based metering terminal of claim 1, wherein, The limiting table (143) is provided with at least two, and the two limiting tables (143) are arranged on the two sides of the movable boss (141) along the sliding direction of the movable boss (141).

6. The rail-mounted metering terminal of claim 5, wherein, The limiting table (143) is provided with a third inclined surface (1431) on the side facing the mounting groove (131).

7. The rail-mounted metering terminal according to any of claims 1-4, characterized in that, The movable boss (141) is provided with an avoiding groove (1415) on the side facing the bottom of the mounting groove (131), one end of the elastic member (142) is limited in the avoiding groove (1415), and the other end abuts against the bottom of the mounting groove (131).

8. The rail-mounted metering terminal of claim 7, wherein, The avoiding groove (1415) is provided with a limiting column (1416), and one end of the elastic member (142) is sleeved on the limiting column (1416).

9. The rail-mounted metering terminal of claim 7, wherein, The mounting groove (131) is provided with a protrusion (1311) on the groove wall, the protrusion (1311) is located on the two sides of the elastic member (142), the limiting hole (132) is arranged at the protrusion (1311), the movable boss (141) is correspondingly provided with a sliding plane (1417), the sliding plane (1417) can slide relative to the protrusion (1311), the limiting table (143) is arranged on the sliding plane (1417), and the protrusion (1311) extends to the outside of the mounting groove (131).

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