A metering box that is easy to disassemble and assemble

Abstract

The present invention relates to the technical field of metering boxes, and specifically to a metering box that is easy to disassemble and assemble, including a metering box body, a limit column, a hinged rod, a locking assembly and a supporting frame. There are four limit columns, which are respectively arranged at the four corners of the back of the metering box body, and there are two hinged rods, which are hinged at the center and arranged at an angle. The present invention is provided with a limit column, a hinged rod, a locking assembly and a supporting frame. When installing metering boxes of different sizes, the staff only needs to adaptively adjust the angle value between the two hinged rods so that the angle value between the two hinged rods is matched with the angle value of the diagonal of the "rectangle" formed by the four limit columns on the back of the metering box body, and then the angle value between the two hinged rods is locked by the locking assembly, so that the metering box body can be fixed on the supporting frame. During the installation process, the staff does not need to carry multiple wrenches of different specifications to fix bolts of corresponding diameters, which is convenient and quick to use.

Description

Technical Field

[0001] The invention relates to the technical field of metering boxes, and in particular to a metering box which is easy to assemble and disassemble. Background Art

[0002] The meter box is a container or housing used to install and protect metering equipment such as electricity meters, water meters, and gas meters. It not only provides physical protection for the metering instruments, ensuring the safety of the working environment of the metering instruments, but also facilitates the management and maintenance of the metering instruments. According to the installation location, the meter box is divided into indoor meter boxes and outdoor meter boxes. Indoor meter boxes are suitable for installation inside buildings, such as basements, corridor walls, etc. Outdoor meter boxes are usually installed on outdoor walls or poles. When installing the meter box, the staff usually first fixes a support frame to the wall or pole with expansion screws, and then fixes the meter box to the support frame with bolts.

[0003] For an outdoor meter box (taking a meter box installed on an outdoor wall as an example), when installing the meter box, the staff needs to align the bolt with the screw hole and then use a wrench to screw the bolt into the screw hole. The larger the meter box, the larger the diameter of the bolt used. The staff needs a wrench with a larger bayonet when installing the meter box. Therefore, the staff must carry multiple wrenches when installing the meter box, which will bring more inconvenience to the staff's work. Summary of the invention

[0004] Based on this, it is necessary to provide a meter box that is easy to disassemble and assemble in order to solve the problem that multiple wrenches must be carried when installing the meter box, which is inconvenient to use.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A metering box that is easy to disassemble and assemble comprises:

[0007] Metering box body;

[0008] Limiting columns, there are four limiting columns, which are respectively arranged at the four corners of the back of the metering box body;

[0009] There are two hinged rods, which are hinged at the center and arranged at an angle, and the two hinged rods are correspondingly abutted against four limit columns;

[0010] A locking assembly is provided between the two hinged rods and is used to lock the angle between the two hinged rods after the two hinged rods are in contact with the four limit posts;

[0011] The supporting frame is fixed on the installation side of the building structure, and the two ends of the two hinged rods are slidably arranged at the matching positions of the supporting frame.

[0012] In one of the embodiments, the support frame includes an outer frame, a vertical support frame and a transverse sliding support frame, the outer frame is fixedly arranged on the installation side of the building structure, the outer frame includes four outer support frames, the four outer support frames are circumferentially enclosed and two adjacent outer support frames are perpendicular to each other, the two ends of the vertical support frame are perpendicular and centrally arranged on any two mutually parallel outer support frames among the four outer support frames, and the two ends of the transverse sliding support frame are perpendicular and slidably arranged on the remaining two mutually parallel outer support frames among the four outer support frames;

[0013] One end of the hinged rod is slidably connected to the transverse sliding support frame, and the other end of the hinged rod is slidably connected to one of the outer support frames parallel to the transverse sliding support frame.

[0014] In one embodiment, the locking assembly comprises an outer rotating ring and an inner rotating ring, the outer rotating ring is arranged at the middle of one of the hinged rods, the inner rotating ring is arranged at the middle of the other hinged rod, the outer rotating ring and the inner rotating ring are nested with each other, a plurality of first ratchet teeth are arranged at equal intervals in the circumferential direction on the outer ring surface of the inner rotating ring, a second ratchet tooth is arranged on the inner ring surface of the outer rotating ring, and the second ratchet tooth is unidirectionally matched with the first ratchet tooth;

[0015] The second ratchet and the first ratchet are configured so that when the inner rotating ring rotates in a first direction relative to the outer rotating ring, the second ratchet and the first ratchet can be displaced from each other so that the angle between the two hinged rods increases; the second ratchet and the first ratchet are also configured so that when the inner rotating ring rotates in a second direction relative to the outer rotating ring, the second ratchet and the first ratchet can abut against each other so as to limit the reduction of the angle between the two hinged rods, and the second direction is opposite to the first direction.

[0016] In one embodiment, a first elastic member is further provided between the outer rotating ring and the inner rotating ring, and the first elastic member is configured such that when the inner rotating ring rotates in a first direction relative to the outer rotating ring, the elastic potential energy of the first elastic member increases.

[0017] In one embodiment, the outer rotating ring includes a main rotating ring and a secondary rotating ring, the main rotating ring and the secondary rotating ring are nested with each other, a mounting groove is provided on the inner ring surface of the main rotating ring, and the second ratchet is elastically connected to one side of the mounting groove;

[0018] When the second ratchet is not subjected to elastic force, the second ratchet is located in the mounting groove, and the second ratchet is disengaged from the first ratchet;

[0019] When the second ratchet is subjected to an elastic force of a preset magnitude, the second ratchet is located outside the mounting groove, and the second ratchet is unidirectionally matched with the first ratchet;

[0020] An unlocking assembly is provided between the main rotating ring and the auxiliary rotating ring, and the unlocking assembly is used to adjust the position of the second ratchet relative to the mounting groove, thereby controlling the matching state of the second ratchet and the first ratchet.

[0021] In one embodiment, the unlocking assembly includes a first hydraulic rod and a sliding column, one end of the first hydraulic rod is hinged on the main rotating ring, the other end of the first hydraulic rod is hinged on the auxiliary rotating ring, the sliding column is slidably arranged in the mounting groove and the sliding column can move along the radial direction of the active ring, and a groove is provided on the inner circumference of the auxiliary rotating ring;

[0022] When the telescopic end of the first hydraulic rod changes so that the main rotating ring and the auxiliary rotating ring rotate relative to each other until the groove corresponds to the mounting groove, the sliding column moves into the groove, the second ratchet is located in the mounting groove, and the second ratchet is disengaged from the first ratchet;

[0023] When the telescopic end of the first hydraulic rod changes so that the main rotating ring and the auxiliary rotating ring rotate relative to each other until the groove and the mounting groove are misaligned with each other, the sliding column moves into the mounting groove and the second ratchet is located outside the mounting groove. At this time, the second ratchet cooperates with the first ratchet in one direction.

[0024] In one of the embodiments, the first hydraulic rod includes a cylinder body, a piston rod and a damping ring, an annular cavity is opened at one end of the cylinder body, the piston rod is slidably connected in the annular cavity, a vertical annular groove and a horizontal annular groove are opened in the cylinder body, the vertical annular groove and the horizontal annular groove are perpendicular to each other and form a cross shape, one end of the vertical annular groove is connected with the annular cavity, the damping ring is movably arranged in the horizontal annular groove, the thickness of the damping ring is smaller than the width of the horizontal annular groove, the diameter of the damping ring is larger than the diameter of the vertical annular groove, and a damping hole is opened in the center of the damping ring.

[0025] In one of the embodiments, a limiting baffle is provided at one end of the limiting column away from the metering box body.

[0026] In one embodiment, the outer support frame, the vertical support frame and the transverse sliding support frame are all made of aluminum alloy profiles.

[0027] In one of the embodiments, guide posts are provided at both ends of the hinged rod, and the guide posts are slidably connected in the grooves of the aluminum alloy profile.

[0028] The beneficial effects of the present invention are:

[0029] 1. The present invention is provided with a limit column, a hinged rod, a locking assembly and a support frame. To install meter boxes of different sizes, the staff only needs to adaptively adjust the angle value between the two hinged rods so that the angle value between the two hinged rods is matched with the angle value of the diagonal of the "rectangle" formed by the four limit columns on the back of the meter box body, and then the angle value between the two hinged rods is locked by the locking assembly. In this way, the meter box body can be fixed on the support frame through the mutual cooperation of the limit column and the hinged rod. During the installation process, the staff does not need to carry multiple wrenches of different specifications to fix bolts of corresponding diameters, which is convenient and quick to use.

[0030] 2. The present invention is provided with a limit column, a hinged rod, a locking assembly and a support frame. When disassembling the meter box body, the staff only needs to make the locking assembly cancel the locking angle value between the two hinged rods, and then rotate the hinged rod in the opposite direction so that the two hinged rods are no longer abutted against the four limit columns. At this time, the staff can disassemble the meter box body from the support frame. Compared with the prior art in which the meter box body is installed on the support frame by bolts, the abutting position of the hinged rod and the limit column in the present invention will not cause the meter box body to be unable to be completely removed from the support frame due to rust, which not only facilitates the disassembly of the meter box body, but also effectively prevents the meter box body from being deformed due to improper disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is an overall schematic diagram of a metering box that is easy to disassemble and assemble according to the present invention;

[0032] Figure 2 A second isometric view of a metering box that is easy to disassemble and assemble according to the present invention;

[0033] Figure 3 This is a structural schematic diagram of a metering box main body in a metering box that is easy to disassemble and assemble according to the present invention;

[0034] Figure 4 This is a structural schematic diagram of a support frame in a metering box that is easy to disassemble and assemble according to the present invention;

[0035] Figure 5 A half-section axonometric diagram of a support frame in a metering box that is easy to disassemble and assemble according to the present invention;

[0036] Figure 6 for Figure 5 A schematic diagram of the enlarged structure in the middle;

[0037] Figure 7 This is a schematic structural diagram of an outer rotating ring and an inner rotating ring in a metering box that is easy to disassemble and assemble according to the present invention;

[0038] Figure 8 A half-section axonometric diagram of an inner rotating ring in a metering box that is easy to disassemble and assemble according to the present invention;

[0039] Fig. 9 This is a structural schematic diagram of a main rotating ring in a metering box that is easy to disassemble and assemble according to the present invention;

[0040] Fig.10 for Fig. 9 Schematic diagram of the enlarged structure at B in the middle;

[0041] Fig.11 This is a schematic structural diagram of a secondary rotating ring in a metering box that is easy to disassemble and assemble according to the present invention;

[0042] Fig.12 The present invention is a schematic structural diagram of a first hydraulic rod in a metering box that is easy to assemble and disassemble.

[0043] in:

[0044] 100, metering box body; 110, limit column; 120, limit baffle;

[0045] 200, hinged rod; 210, guide column; 220, center column;

[0046] 300, locking assembly; 310, outer rotating ring; 311, second ratchet; 312, main rotating ring; 3121, mounting groove; 313, auxiliary rotating ring; 3131, groove; 320, inner rotating ring; 321, first ratchet; 330, first elastic member;

[0047] 400, support frame; 410, outer frame; 411, outer support frame; 420, vertical support frame; 430, horizontal sliding support frame;

[0048] 500, unlocking assembly; 510, first hydraulic rod; 511, cylinder body; 5111, annular cavity; 5112, vertical annular groove; 5113, horizontal annular groove; 512, piston rod; 513, damping ring; 5131, damping hole; 520, sliding column. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0050] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] like Figure 1-Figure 12 As shown, a metering box that is easy to disassemble and assemble includes a metering box body 100, a limit column 110, a hinged rod 200, a locking assembly 300 and a support frame 400. There are four limit columns 110, and the four limit columns 110 are respectively arranged at the four corners of the back side of the metering box body 100. There are two hinged rods 200, and the two hinged rods 200 are centrally hinged and arranged at an angle. The two hinged rods 200 are correspondingly abutted against the four limit columns 110. The locking assembly 300 is arranged between the two hinged rods 200. The locking assembly 300 is used to lock the angle value between the two hinged rods 200 after the two hinged rods 200 are correspondingly abutted against the four limit columns 110. The support frame 400 is fixed on the installation side of the building structure, and the two ends of the two hinged rods 200 are slidably arranged at the adaptation position of the support frame 400.

[0053] When in use, the staff first fixes the support frame 400 to the outside of the building structure such as the building wall or the electric pole, and then adjusts the angle between the two hinged rods 200 so that the angle between the two hinged rods 200 matches the angle of the diagonal of the "rectangle" formed by the four limiting columns 110 on the back of the meter box body 100. At the same time, the two ends of the two hinged rods 200 slide to the matching position of the support frame 400, and then the meter box body 100 is hung on the limiting columns 110. The four limit columns 110 on the back of the meter box body 100 pass through the gap between the two hinged rods 200 and abut against the two hinged rods 200 respectively, and finally the angle between the two hinged rods 200 is locked by the locking assembly 300. At this time, the angle between the two hinged rods 200 remains unchanged. At this time, the meter box body 100 cannot move up and down or shake left and right, so that the meter box body 100 is fixed on the support frame 400 through the cooperation of the four limit columns 110 and the two hinged rods 200. It can be understood that for meter boxes of different sizes, the staff only needs to adaptively adjust the angle value between the two hinged rods 200 so that the angle value between the two hinged rods 200 is compatible with the angle value of the diagonal of the "rectangle" formed by the four limit columns 110 on the back of the meter box body 100, and then lock the angle value between the two hinged rods 200 through the locking assembly 300. In this way, the meter box body 100 can be fixed on the support frame 400 through the mutual cooperation of the limit columns 110 and the hinged rods 200. During the installation process, the staff does not need to carry multiple wrenches of different specifications to fix bolts of corresponding diameters, which is convenient and quick to use.

[0054] When disassembling the meter box body 100, the staff only needs to make the locking assembly 300 cancel the locking angle value between the two hinged rods 200, and then rotate the hinged rod 200 in the opposite direction so that the two hinged rods 200 no longer abut against the four limit columns 110. At this time, the staff can disassemble the meter box body 100 from the support frame 400. Compared with the prior art of installing the meter box body 100 on the support frame 400 by bolts, the abutment position of the hinged rod 200 and the limit column 110 in the present invention will not cause the meter box body 100 to be unable to be completely removed from the support frame 400 due to rust, which not only facilitates the disassembly of the meter box body 100, but also effectively prevents the meter box body 100 from being deformed due to improper disassembly.

[0055] It should also be noted that if Figure 3As shown, a limiting baffle 120 is provided at one end of the limiting column 110 away from the meter box body 100. When the hinge rod 200 passes through the limiting column 110, the end of the limiting baffle 120 away from the limiting column 110 is abutted against the installation side of the building structure, so that when the limiting column 110 abuts against the hinge rod 200, one side of the limiting baffle 120 abuts against the hinge rod 200, and the other side abuts against the building structure, so that the meter box body 100 can be limited to move forward and backward in the front-back direction by the limiting baffle 120, so as to achieve the purpose of completely fixing the meter box body 100.

[0056] In a further embodiment, Figure 1-Figure 5 As shown, the support frame 400 includes an outer frame 410, a vertical support frame 420 and a transverse sliding support frame 430. The outer frame 410 is fixedly arranged on the installation side of the building structure. The outer frame 410 includes four outer support frames 411. The four outer support frames 411 are circumferentially enclosed and two adjacent outer support frames 411 are perpendicular to each other. Both ends of the vertical support frame 420 are perpendicular and centrally arranged on any two mutually parallel outer support frames 411 among the four outer support frames 411. Both ends of the transverse sliding support frame 430 are perpendicular and slidingly arranged on the remaining two mutually parallel outer support frames 411 among the four outer support frames 411. One end of the hinged rod 200 is slidably connected to the transverse sliding support frame 430, and the other end of the hinged rod 200 is slidably connected to one of the outer support frames 411 parallel to the transverse sliding support frame 430.

[0057] It should also be noted that the distance between the inner side surface of the hinged rod 200 and the installation side surface of the building structure should be compatible with the thickness of the limit baffle 120. This is to ensure that when the hinged rod 200 abuts against the limit baffle 120, the meter box body 100 cannot move forward or backward through the joint limiting effect of the installation side surface of the building structure, the limit baffle 120 and the hinged rod 200.

[0058] In the initial state, the angle between the two hinged rods 200 is minimized. Next, the staff allows the limit column 110 to pass through the hinged rod 200 and allows the limit baffle 120 to abut against the installation side of the building structure. Next, the staff pulls the horizontal sliding support frame 430, so that the horizontal sliding support frame 430 moves along the length extension line of the vertical support frame 420 toward the end of the sliding connection between the hinged rod 200 and the outer support frame 411. As a result, the angle between the two hinged rods 200 is increased, so that the two hinged rods 200 gradually abut against the four limit columns 110. At this time, the meter box body 100 cannot move in the up and down directions and the left and right directions. At the same time, the limit baffle 120 abuts against the installation side of the building structure and the hinged rod 200 at the same time. Therefore, the meter box body 100 cannot move in the front and back directions. Next, the angle between the two hinged rods 200 is locked by the locking assembly 300, so that the meter box body 100 is completely fixed on the support frame 400.

[0059] It should also be noted that if Figure 4 As shown, the outer support frame 411, the vertical support frame 420 and the horizontal sliding support frame 430 are all aluminum alloy profiles, because the surface of the aluminum alloy profile has a groove. Figure 4 and Fig. 9 As shown, a central column 220 is provided at the middle hinge point of the two hinge rods 200, and the central column 220 is slidably connected in the groove of the vertical support frame 420. Figure 5 and Figure 7 As shown, guide columns 210 are provided at both ends of the hinged rod 200, and the guide columns 210 are slidably connected in the grooves of the outer support frame 411 and the transverse sliding support frame 430, so that the two ends of the two hinged rods 200 are slidably arranged at the matching position of the support frame 400.

[0060] In a further embodiment, Figure 4-Figure 10As shown, the locking assembly 300 includes an outer rotating ring 310 and an inner rotating ring 320. The outer rotating ring 310 is arranged at the middle of one of the hinged rods 200, and the inner rotating ring 320 is arranged at the middle of the other hinged rod 200. The outer rotating ring 310 and the inner rotating ring 320 are nested with each other. The outer ring surface of the inner rotating ring 320 is circumferentially and evenly spaced with a plurality of first ratchet teeth 321. The inner ring surface of the outer rotating ring 310 is provided with second ratchet teeth 311. The second ratchet teeth 311 are unidirectionally matched with the first ratchet teeth 321. The second ratchet teeth 311 and the first ratchet teeth 321 are unidirectionally matched with each other. The ratchet teeth 321 are configured such that when the inner rotating ring 320 rotates relative to the outer rotating ring 310 about a first direction, the second ratchet teeth 311 and the first ratchet teeth 321 can be offset from each other so that the angle value between the two hinged rods 200 increases. The second ratchet teeth 311 and the first ratchet teeth 321 are also configured such that when the inner rotating ring 320 rotates relative to the outer rotating ring 310 about a second direction, the second ratchet teeth 311 and the first ratchet teeth 321 can abut against each other so as to limit the reduction of the angle value between the two hinged rods 200. The second direction is opposite to the first direction.

[0061] When it is necessary to adjust the angle between the two articulated rods 200, the staff makes the horizontal sliding support frame 430 move along the length extension line of the vertical support frame 420 toward the end where the articulated rod 200 and the outer support frame 411 are slidably connected. At this time, the angle between the two articulated rods 200 increases, and the inner rotating ring 320 rotates around the first direction relative to the outer rotating ring 310, and the second ratchet tooth 311 and the first ratchet tooth 321 are misaligned with each other. When the two articulated rods 200 abut against the four limit columns 110, the angle between the two articulated rods 200 cannot continue to increase. At the same time, since the second ratchet tooth 311 and the first ratchet tooth 321 can abut against each other when the inner rotating ring 320 rotates around the second direction relative to the outer rotating ring 310, the angle between the two articulated rods 200 cannot be reduced. Therefore, the locking assembly 300 locks the angle between the two articulated rods 200.

[0062] In a further embodiment, Figure 6 As shown, a first elastic member 330 is further provided between the outer rotating ring 310 and the inner rotating ring 320. Specifically, the first elastic member 330 is a coil spring, one end of which is fixedly provided on the outer rotating ring 310, and the other end of which is provided on the inner rotating ring 320. The first elastic member 330 is configured such that when the inner rotating ring 320 rotates around a first direction relative to the outer rotating ring 310, the elastic potential energy of the first elastic member 330 increases.

[0063] The first elastic member 330 is provided to increase the abutting force between the hinge rod 200 and the limiting column 110 , thereby enhancing the installation stability of the metering box body 100 .

[0064] In a further embodiment, Figure 6-Figure 11As shown, the outer rotating ring 310 includes a main rotating ring 312 and a secondary rotating ring 313. The main rotating ring 312 and the secondary rotating ring 313 are nested with each other. A mounting groove 3121 is opened on the inner ring surface of the main rotating ring. The second ratchet tooth 311 is elastically connected to one side of the mounting groove 3121. When the second ratchet tooth 311 is not subjected to the elastic force, the second ratchet tooth 311 is located in the mounting groove 3121, and the second ratchet tooth 311 is disengaged from the first ratchet tooth 321. When the second ratchet tooth 311 is subjected to the elastic force of a preset size, the second ratchet tooth 311 is located outside the mounting groove 3121, and the second ratchet tooth 311 is unidirectionally matched with the first ratchet tooth 321. An unlocking component 500 is provided between the main rotating ring 312 and the secondary rotating ring 313. The unlocking component 500 is used to adjust the position of the second ratchet tooth 311 relative to the mounting groove 3121, thereby controlling the matching state of the second ratchet tooth 311 and the first ratchet tooth 321.

[0065] When installing the metering box body 100, the staff adjusts the position of the second ratchet 311 relative to the installation groove 3121 through the unlocking assembly 500, so that the second ratchet 311 is subjected to an elastic force of a preset size. At this time, the second ratchet 311 is located outside the installation groove 3121, and the matching state between the second ratchet 311 and the first ratchet 321 is a one-way match.

[0066] When it is necessary to disassemble the metering box body 100, the staff adjusts the position of the second ratchet 311 relative to the mounting groove 3121 through the unlocking assembly 500, so that the second ratchet 311 is not affected by the elastic force. At this time, the second ratchet 311 is located in the mounting groove 3121, and the second ratchet 311 is disengaged from the first ratchet 321. At this time, the two hinged rods 200 are subjected to the elastic reset force of the first elastic member 330, so that the angle between the two hinged rods 200 is reduced to the point where the two hinged rods 200 no longer abut against the four limit columns 110. At the same time, the limit baffle 120 and the hinged rod 200 are also misaligned in the front and rear directions. At this time, the staff can more conveniently disassemble the metering box body 100 from the support frame 400.

[0067] In a further embodiment, Figure 7-Figure 11As shown, the unlocking assembly 500 includes a first hydraulic rod 510 and a sliding column 520. One end of the first hydraulic rod 510 is hinged on the main rotating ring 312, and the other end of the first hydraulic rod 510 is hinged on the secondary rotating ring 313. The sliding column 520 is slidably arranged in the installation groove 3121 and the sliding column 520 can move along the radial direction of the active ring. A groove 3131 is provided on the inner circumference of the secondary rotating ring 313. When the telescopic end of the first hydraulic rod 510 changes so that the main rotating ring 312 and the secondary rotating ring 313 rotate relative to each other until the groove 3131 and the installation groove 3121 are aligned. When the mounting groove 3121 corresponds, the sliding column 520 moves into the groove 3131, and the second ratchet 311 is located in the mounting groove 3121. At this time, the second ratchet 311 is disengaged from the first ratchet 321. When the telescopic end of the first hydraulic rod 510 changes to make the main rotating ring 312 and the auxiliary rotating ring 313 rotate relative to each other until the groove 3131 and the mounting groove 3121 are misaligned with each other, the sliding column 520 moves into the mounting groove 3121, and the second ratchet 311 is located outside the mounting groove 3121. At this time, the second ratchet 311 is unidirectionally matched with the first ratchet 321.

[0068] During installation, the staff makes the extension length of the telescopic end of the first hydraulic rod 510 extend or shorten (here, the telescopic end of the first hydraulic rod 510 extending outward is taken as an example). At this time, the main rotating ring 312 and the auxiliary rotating ring 313 rotate relative to each other until the installation groove 3121 and the groove 3131 are misaligned with each other, and the sliding column 520 pushes the second ratchet tooth 311 outward. At this time, due to the elastic deformation of the connection between the second ratchet tooth 311 and the installation groove 3121, the second ratchet tooth 311 is subjected to a preset elastic force. At this time, the second ratchet tooth 311 and the first ratchet tooth 321 cooperate in unidirectional transmission.

[0069] During disassembly, the staff retracts the telescopic end of the first hydraulic rod 510. At this time, the main rotating ring 312 and the auxiliary rotating ring 313 rotate relative to each other until the mounting groove 3121 corresponds to the position of the groove 3131. At this time, the sliding column 520 is not sufficient to overcome the elastic force between the second ratchet tooth 311 and the groove 3131, so the sliding column 520 is located in the groove 3131, and the second ratchet tooth 311 is located in the mounting groove 3121. At this time, the second ratchet tooth 311 and the first ratchet tooth 321 are disengaged from the one-way transmission cooperation.

[0070] In a further embodiment, Fig.12As shown, the first hydraulic rod 510 includes a cylinder body 511, a piston rod 512 and a damping ring 513. An annular cavity 5111 is provided at one end of the cylinder body 511. The piston rod 512 is slidably connected in the annular cavity 5111. A vertical annular groove 5112 and a horizontal annular groove 5113 are provided in the cylinder body 511. The vertical annular groove 5112 and the horizontal annular groove 5113 are perpendicular to each other and form a cross shape. One end of the vertical annular groove 5112 is connected to the annular cavity 5111. The damping ring 513 is movably arranged in the horizontal annular groove 5113. The thickness of the damping ring 513 is smaller than the width of the horizontal annular groove 5113. The diameter of the damping ring 513 is larger than the diameter of the vertical annular groove 5112. A damping hole 5131 is provided in the center of the damping ring 513.

[0071] The device also has an anti-vibration effect. When the building structure is subjected to a small vibration, the first hydraulic rod 510 is slightly reciprocated and extended or shortened by the vibration force. When the first hydraulic rod 510 is extended, the piston rod 512 moves in a direction away from the damping ring 513, and the hydraulic oil in the vertical ring groove 5112 pushes the damping ring 513 to move upward. At this time, part of the vibration energy is converted into the gravitational potential energy of the damping ring 513, thereby achieving the purpose of absorbing the vibration energy and reducing the vibration force. When the first hydraulic rod 510 is shortened, the first hydraulic rod 510 moves in a direction close to the damping ring 513, and the hydraulic oil in the annular cavity 5111 pushes the damping ring 513 to move downward, thereby converting part of the vibration energy into the kinetic energy of the damping ring 513, so that the damping ring 513 reciprocates up and down in the horizontal ring groove 5113, thereby absorbing the kinetic energy of the vibration through the change of the potential energy of the damping ring 513, thereby reducing the destructive force of the vibration and preventing the wire connection inside the metering box from loosening. When the building structure is subjected to a large vibration, the first hydraulic rod 510 is reciprocated and extended or shortened to a large extent under the action of the vibration force. When the first hydraulic rod 510 is extended, the hydraulic oil in the vertical annular groove 5112 first pushes the damping ring 513 to move upward. After the damping ring 513 abuts against the upper surface of the horizontal annular groove 5113, the hydraulic oil can only flow into the annular cavity 5111 through the damping hole 5131, so the friction between the hydraulic oil and the surrounding wall of the damping hole 5131 is significantly increased, thereby converting the vibration energy into heat energy through the friction between the hydraulic oil and the surrounding wall of the damping hole 5131. The temperature of the lubricating oil rises after absorbing heat. When the first hydraulic rod 510 contracts, the same reason is not repeated. In this way, the intensity of the vibration force transmitted to the meter box body 100 can be significantly reduced, and the power facilities inside the meter box body 100 can be protected from damage as much as possible.

[0072] It is understandable that the damping ring 513 is provided to prevent the staff from actively changing the length of the hydraulic rod and causing inconvenience in use due to excessive damping force. Such a setting can ensure that when the staff operates normally, the damping ring 513 does not abut against the surface of the horizontal ring groove 5113. At this time, the hydraulic oil can flow normally through the vertical ring groove 5112, and the damping effect is relatively small. When the vibration effect is significant, the damping ring 513 abuts against the surface of the horizontal ring groove 5113. At this time, the hydraulic oil can only flow between the cylinder body 511 and the vertical ring groove 5112 through the damping hole 5131, and the damping force is significant.

[0073] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A metering box that is easy to disassemble and assemble, characterized in that: include: Metering box body; Limiting columns, there are four limiting columns, which are respectively arranged at the four corners of the back of the metering box body; There are two hinged rods, which are hinged at the center and arranged at an angle, and the two hinged rods are correspondingly abutted against four limit columns; A locking assembly is provided between the two hinged rods and is used to lock the angle between the two hinged rods after the two hinged rods are in contact with the four limit posts; A support frame, the support frame is fixed on the installation side of the building structure, and the two ends of the two hinged rods are slidably arranged at the matching positions of the support frame; the support frame includes an outer frame, a vertical support frame and a transverse sliding support frame, the outer frame is fixedly arranged on the installation side of the building structure, the outer frame includes four outer support frames, the four outer support frames are circumferentially enclosed and two adjacent outer support frames are perpendicular to each other, the two ends of the vertical support frame are perpendicular and centrally arranged on any two mutually parallel outer support frames among the four outer support frames, and the two ends of the transverse sliding support frame are perpendicular and slidably arranged on the remaining two mutually parallel outer support frames among the four outer support frames; One end of the hinged rod is slidably connected to the transverse sliding support frame, and the other end of the hinged rod is slidably connected to one of the outer support frames parallel to the transverse sliding support frame; the locking assembly includes an outer rotating ring and an inner rotating ring, the outer rotating ring is arranged in the middle of one of the hinged rods, the inner rotating ring is arranged in the middle of the other hinged rod, the outer rotating ring and the inner rotating ring are nested with each other, a plurality of first ratchet teeth are arranged at equal intervals on the outer ring surface of the inner rotating ring in the circumferential direction, and a second ratchet tooth is arranged on the inner ring surface of the outer rotating ring, and the second ratchet tooth is unidirectionally matched with the first ratchet tooth; The second ratchet and the first ratchet are configured so that when the inner rotating ring rotates in a first direction relative to the outer rotating ring, the second ratchet and the first ratchet can be displaced from each other so that the angle between the two hinged rods increases; the second ratchet and the first ratchet are also configured so that when the inner rotating ring rotates in a second direction relative to the outer rotating ring, the second ratchet and the first ratchet can abut against each other so as to limit the reduction of the angle between the two hinged rods, and the second direction is opposite to the first direction.

2. A metering box that is easy to assemble and disassemble according to claim 1, characterized in that: The locking assembly comprises an outer rotating ring and an inner rotating ring, wherein the outer rotating ring is arranged at the middle of one of the hinged rods, and the inner rotating ring is arranged at the middle of the other hinged rod, the outer rotating ring and the inner rotating ring are nested with each other, a plurality of first ratchet teeth are arranged at equal intervals in the circumferential direction on the outer ring surface of the inner rotating ring, and a second ratchet tooth is arranged on the inner ring surface of the outer rotating ring, and the second ratchet tooth is matched with the first ratchet tooth in one direction; The second ratchet and the first ratchet are configured so that when the inner rotating ring rotates in a first direction relative to the outer rotating ring, the second ratchet and the first ratchet can be displaced from each other so that the angle between the two hinged rods increases; the second ratchet and the first ratchet are also configured so that when the inner rotating ring rotates in a second direction relative to the outer rotating ring, the second ratchet and the first ratchet can abut against each other so as to limit the reduction of the angle between the two hinged rods, and the second direction is opposite to the first direction.

3. A metering box that is easy to assemble and disassemble according to claim 2, characterized in that: A first elastic member is further provided between the outer rotating ring and the inner rotating ring. The first elastic member is configured such that when the inner rotating ring rotates in a first direction relative to the outer rotating ring, the elastic potential energy of the first elastic member increases.

4. The metering box that is easy to assemble and disassemble according to claim 2 is characterized in that: The outer rotating ring comprises a main rotating ring and a secondary rotating ring, the main rotating ring and the secondary rotating ring are nested with each other, a mounting groove is provided on the inner ring surface of the main rotating ring, and the second ratchet is elastically connected to one side of the mounting groove; When the second ratchet is not subjected to elastic force, the second ratchet is located in the mounting groove, and the second ratchet is disengaged from the first ratchet; When the second ratchet is subjected to an elastic force of a preset magnitude, the second ratchet is located outside the mounting groove, and the second ratchet is unidirectionally matched with the first ratchet; An unlocking assembly is provided between the main rotating ring and the auxiliary rotating ring, and the unlocking assembly is used to adjust the position of the second ratchet relative to the mounting groove, thereby controlling the matching state of the second ratchet and the first ratchet.

5. The metering box that is easy to assemble and disassemble according to claim 4 is characterized in that: The unlocking assembly includes a first hydraulic rod and a sliding column, one end of the first hydraulic rod is hinged on the main rotating ring, the other end of the first hydraulic rod is hinged on the auxiliary rotating ring, the sliding column is slidably arranged in the installation groove and the sliding column can move along the radial direction of the active ring, and a groove is provided on the inner circumference of the auxiliary rotating ring; When the telescopic end of the first hydraulic rod changes so that the main rotating ring and the auxiliary rotating ring rotate relative to each other until the groove corresponds to the mounting groove, the sliding column moves into the groove, the second ratchet is located in the mounting groove, and the second ratchet is disengaged from the first ratchet; When the telescopic end of the first hydraulic rod changes so that the main rotating ring and the auxiliary rotating ring rotate relative to each other until the groove and the mounting groove are misaligned with each other, the sliding column moves into the mounting groove and the second ratchet is located outside the mounting groove. At this time, the second ratchet cooperates with the first ratchet in one direction.

6. The metering box that is easy to assemble and disassemble according to claim 5, characterized in that: The first hydraulic rod includes a cylinder body, a piston rod and a damping ring. An annular cavity is provided at one end of the cylinder body. The piston rod is slidably connected in the annular cavity. A vertical annular groove and a horizontal annular groove are provided in the cylinder body. The vertical annular groove and the horizontal annular groove are perpendicular to each other and form a cross shape. One end of the vertical annular groove is connected to the annular cavity. The damping ring is movably arranged in the horizontal annular groove. The thickness of the damping ring is smaller than the width of the horizontal annular groove. The diameter of the damping ring is larger than the diameter of the vertical annular groove. A damping hole is provided in the center of the damping ring.

7. The metering box that is easy to assemble and disassemble according to claim 1 is characterized in that: A limiting baffle is provided at one end of the limiting column away from the metering box body.

8. The metering box that is easy to assemble and disassemble according to claim 1 is characterized in that: The outer support frame, the vertical support frame and the transverse sliding support frame are all made of aluminum alloy profiles.

9. The metering box that is easy to assemble and disassemble according to claim 8, characterized in that: Both ends of the hinged rod are provided with guide columns, and the guide columns are slidably connected in the grooves of the aluminum alloy profiles.

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