Electric meter box device for plug-in type installation of electric meter

Abstract

The invention relates to the technical field of electric meter boxes, and discloses an electric meter box device for plug-in installation of an electric meter, the electric meter box device comprises a box body, a cable and an electric meter body, a first wire fixing sheet and a second wire fixing sheet are movably arranged in the box body, and the first wire fixing sheet and the second wire fixing sheet are used in cooperation to fix the cable. A first positioning piece and a second positioning piece are movably arranged in the box body and are used for positioning the end part of the cable, a driving assembly is arranged between the electric meter body and the first positioning piece and between the electric meter body and the second positioning piece, a first electric contact piece and a second electric contact piece are movably arranged in the electric meter body, and the first electric contact piece and the second electric contact piece are electrically connected with the electric meter body. The end portion of the cable is fixed on the wire fixing plate, the first positioning sheet and the second positioning sheet adjust and position the position of the conductive core, the insulating layer of the cable is clamped and fixed again, and the ammeter body slides, so that the cable and the ammeter body are inserted and pulled out, and the ammeter body can be rapidly installed in the box body.

Description

Technical Field

[0001] The invention relates to the technical field of electric meter boxes, in particular to an electric meter box device for installing an electric meter in a plug-in manner. Background Art

[0002] The electric meter box is a protective device specially used for installing electric energy measuring instruments such as electric meters. The electric meter box is a device used to store electric meters. It can protect electric energy measuring instruments and lines and prevent the electric energy measuring instruments from becoming unstable or causing safety hazards due to external factors.

[0003] The electric meter box measures and records the user's electricity consumption in real time through the electric meter, providing a basis for electricity bill settlement; the electric meter box can prevent power failures such as overload and short circuit, and protect the safe operation of power equipment and lines; the electric meter box controls the flow of electric energy through components such as load switches, realizes the power distribution function, and meets the electricity needs of users' different equipment. The electric meter box is mainly composed of three parts: the meter box, the cover and the back plate. The electric meter box usually contains components such as the electric meter, screws, wires, terminal blocks, grounding wires and power switches. The outer shell of the electric meter box is usually made of materials such as iron sheets, stainless steel, aluminum alloy or plastic. New electric meter boxes may also be made of composite materials such as fiber-reinforced polyester materials to improve the insulation, corrosion resistance and service life of the electric meter box.

[0004] Electricity meter boxes are widely used in various power systems for energy metering and protection scenarios, such as residential buildings: used to introduce electricity from the power supply network into households and record the electricity consumption of each household; commercial buildings: such as shopping malls, office buildings, restaurants, etc., due to the large electricity consumption and demand fluctuations, the application of electricity meter boxes is particularly important; industrial facilities: such as factories, workshops, etc., used to monitor and manage large amounts of electricity supply; in addition, there are public facilities, agricultural facilities, new energy applications, etc.

[0005] At present, the existing technology requires that the electric meter be fixed inside the electric meter box first, and then the cable end is inserted into the terminal post of the electric meter, and the cable end is connected to the terminal post by screws, so that the cable is electrically connected to the electric meter. However, the number of cables that need to be connected to the electric meter in the electric meter box is large, and connecting by screws is time-consuming and labor-intensive, which makes it inconvenient to install the electric meter into the electric meter box; therefore, it does not meet the existing needs, and we have proposed a meter box device for plug-in installation of electric meters. Summary of the invention

[0006] The present invention provides an electric meter box device for plugging and unplugging an electric meter, which has the beneficial effect of facilitating the installation of the electric meter into the electric meter box, and solves the problem that the prior art mentioned in the above background technology requires first fixing the electric meter inside the electric meter box, then inserting the cable end into the terminal post of the electric meter, and connecting the cable end to the terminal post by screws, so that the cable is electrically connected to the electric meter, but the number of cables that need to be connected to the electric meter in the electric meter box is large, and connecting by screws is time-consuming and labor-intensive, thereby making it inconvenient to install the electric meter into the electric meter box.

[0007] The present invention provides the following technical solution: an electric meter box device for plug-in installation of an electric meter, comprising a box, a cable arranged inside the box, and an electric meter body arranged inside the box, characterized in that: a first wire fixing piece and a second wire fixing piece are movably arranged inside the box for fixing the ends of the cable; A first positioning piece and a second positioning piece are also movably provided inside the box body for positioning the cable end; A driving assembly is arranged between the meter body and the first positioning piece and the second positioning piece. A first electric contact piece and a second electric contact piece are movably arranged inside the meter body. The first electric contact piece and the second electric contact piece are used to electrically connect the cable. The first electric contact piece and the second electric contact piece are also electrically connected to the meter body through the cable.

[0008] As an optional scheme of a meter box device for plug-in installation of an electric meter described in the present invention, the cable includes an insulating layer and a conductive core wrapped in the insulating layer, a slider is installed on the back side of the meter body, and a slide groove is opened on the inner wall of the box body. The slide groove is used in conjunction with the slider, and the slider is slidably inserted in the slide groove.

[0009] As an optional scheme of an electric meter box device for plug-in installation of an electric meter described in the present invention, wherein: a wire fixing plate is installed on the inner wall of the box body, the first wire fixing plate and the second wire fixing plate are both slidably arranged in the wire fixing plate, the first wire fixing plate and the second wire fixing plate together form a circular ring, the number of the first wire fixing plate, the second wire fixing plate and the cables are all set to be several, a first spring is installed on the outer side of the first wire fixing plate, the end of the first spring is connected to the inner wall of the wire fixing plate, a paddle is also installed on the outer side of the first wire fixing plate, and the middle part of the paddle is slidably inserted into the lower side of the wire fixing plate.

[0010] As an optional scheme of the meter box device for plug-in installation of an electric meter described in the present invention, wherein: a plurality of the side portions of the second wire fixing plates are commonly connected with a connecting rod, one of the side portions of the second wire fixing plates is rotatably plugged with a clamping bolt, and the middle portion of the clamping bolt is threadedly connected to the side portion of the wire fixing plate.

[0011] As an optional scheme of a meter box device for plug-in installation of an electric meter described in the present invention, wherein: the first positioning plate and the second positioning plate together form a circular ring, the number of the first positioning plates and the second positioning plates is the same as the number of the cables, the inner ring of the first positioning plate and the inner ring of the second positioning plate are both installed with elastic plates, an installation shell is slidably arranged inside the box body, sliding blocks are installed at both ends of the installation shell, the sliding blocks are slidably arranged in the inner wall of the box body, a second spring is installed on the lower side of the sliding block, and the end of the second spring is connected to the box body.

[0012] As an optional scheme of an electric meter box device for plug-in installation of an electric meter described in the present invention, wherein: a first screw is arranged inside the installation shell, first bearings are installed at both ends of the first screw, two first bearings are respectively installed on both sides of the installation shell, the inner ring of the first bearing is in contact with the outer side of the first screw, and the outer ring of the first bearing is in contact with the inner wall of the installation shell, a first thread sleeve and a second thread sleeve are threadedly connected to the outer side of the first screw, the number of the first thread sleeves is the same as the number of the first positioning pieces, the first positioning pieces are respectively connected to the first thread sleeves, the number of the second thread sleeves is the same as the number of the second positioning pieces, the second positioning pieces are respectively connected to the second thread sleeves, limiting slides are installed on the outer sides of the first thread sleeves and the second thread sleeves, a groove body used in conjunction with the limiting slide is opened on the inner wall of the installation shell, the limiting slide is slidably inserted in the groove body opened on the inner wall of the installation shell, and the first positioning piece and the second positioning piece are both arranged outside the installation shell.

[0013] As an optional solution of the plug-in installation meter box device of the present invention, wherein: one end of the first screw rod is arranged outside the installation shell, and the driving assembly includes a gear installed at the end of the first screw rod located outside the installation shell, a first rack and a second rack installed on the outer wall of the meter body, and a first push rod installed on the upper side of one of the sliding blocks; The first rack and the second rack are intermittently meshed with the gear, the first rack includes a lower tooth segment and an upper tooth segment, and the lower tooth segment, the upper tooth segment and the second rack are intermittently meshed with the gear respectively, the first push rod is slidably arranged in the inner wall of the box body, a sliding rod is slidably inserted at the upper end of the first push rod, a third spring is arranged inside the first push rod, two ends of the third spring are respectively connected to the sliding rod and the first push rod, the rigidity of the third spring is greater than that of the second spring, and the upper end of the sliding rod intermittently conflicts with the slider.

[0014] As an optional scheme of an electric meter box device for plug-in installation of an electric meter described in the present invention, wherein: a first wedge block is slidably provided on the inner wall of the box body, and a second wedge block used in conjunction with the first wedge block is also slidably provided on the inner wall of the box body, a fourth spring is installed on the outer side of the first wedge block, and the end of the fourth spring is connected to the box body, and an insertion rod is installed on the outer side of the first wedge block, and one of the sides of the sliding block is provided with a slot slidably matched with the insertion rod, and the end of the insertion rod is slidably inserted into the slot provided on the side of the sliding block, and a second push rod is installed on the outer side of the second wedge block, and the second push rod is slidably provided in the inner wall of the box body, and the upper end of the second push rod also intermittently interferes with the sliding block, and a fifth spring is installed on the lower side of the second push rod, and the lower end of the fifth spring is connected to the inner wall of the box body.

[0015] As an optional scheme of a meter box device for a plug-in installation of an electric meter described in the present invention, wherein: the first wedge block and the second wedge block are both configured as triangular blocks, so that when the second wedge block moves downward, the upper inclined surface of the first wedge block slides with the lower inclined surface of the second wedge block; when the second wedge block moves upward and resets, the lower inclined surface of the first wedge block slides with the upper inclined surface of the second wedge block.

[0016] As an optional scheme for an electric meter box device for plug-in installation of an electric meter described in the present invention, wherein: a second screw is arranged inside the electric meter body, and both ends of the second screw are rotatably arranged in the electric meter body through second bearings respectively, a third screw sleeve and a fourth screw sleeve are threadedly connected to the outer side of the second screw, the first electric contact is connected to the third screw sleeve, the second electric contact is connected to the fourth screw sleeve, and the third and fourth screw sleeves are also installed with the limiting slide on the outer side, the limiting slide is slidably inserted into the inner side of the electric meter body, a twist is rotatably inserted into the side of the electric meter body, the end of the twist is connected to one end of the second screw, a positioning bolt is inserted into the side of the electric meter body, and a thread groove matching the thread of the positioning bolt is opened on the inner wall of the box.

[0017] The present invention has the following beneficial effects: 1. The meter box device for plug-in installation of the meter fixes the cable end from bottom to top on the wire fixing plate, and through the driving component, during the downward movement of the meter body, the first positioning piece and the second positioning piece first approach each other to adjust and position the position of the conductive core, and then the first positioning piece and the second positioning piece move away from each other and then descend to the outside of the insulating layer, and finally, the first positioning piece and the second positioning piece close together again to clamp the insulating layer to prevent the cable from loosening and falling off as much as possible; the end of the cable is inserted into the meter body, and the first electric contact piece and the second electric contact piece are brought close to each other to clamp and fix the conductive core through the cooperation of the second screw rod with the third wire sleeve and the fourth wire sleeve. In summary, by sliding the meter body, the cable and the meter body can be inserted and pulled out, so that the meter body can be quickly installed in the box.

[0018] 2. In the plug-in type electric meter box device, the electric meter body drives the first rack and the second rack to descend, the lower tooth segment first meshes with the gear, and the first screw rod cooperates with the first wire sleeve and the second wire sleeve to clamp the conductive core for positioning, and then the lower tooth segment is disengaged from the gear, and at the same time, the second rack meshes with the other side of the gear, so that the first positioning piece and the second positioning piece move away from each other and the second rack is disengaged from the gear; the slider pushes the mounting shell downward through the first push rod, so that the first positioning piece and the second positioning piece move down to the side of the insulating layer, and the slider continues to move downward. At this time, the mounting shell moves down to the lowest position and stops, so that the third spring begins to be compressed. Not only that, through the meshing of the upper tooth segment and the gear, the first positioning piece and the second positioning piece are close to each other again, and the insulating layer is clamped and fixed, which is convenient for controlling the opening and closing of the first positioning piece and the second positioning piece, so that the cable can be accurately inserted into the electric meter body.

[0019] 3. In the meter box device for plug-in installation of electric meters, when the lower tooth segment and the second rack are respectively engaged with the gear, the insertion rod keeps the sliding block and the mounting shell stationary, thereby improving the positioning effect of the first positioning piece and the second positioning piece on the conductive core. When the second rack is disengaged from the gear, the slider moves the second wedge block downward through the second push rod, so that the first wedge block drives the insertion rod to be pulled out of the sliding block, and then the slider pushes the sliding block downward through the first push rod, thereby facilitating the first positioning piece and the second positioning piece to clamp the insulating layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the internal three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the back structure of the electric meter body of the present invention.

[0022] Figure 3 It is a schematic diagram of the installation structure of the electric meter body and the box body of the present invention.

[0023] Figure 4 It is a schematic diagram of the box structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure of the wire fixing plate of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the second wire fixing sheet of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the first wire fixing sheet of the present invention.

[0027] Figure 8 It is a schematic diagram of the explosion of the slide bar of the present invention.

[0028] Fig. 9 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the first screw rod of the present invention.

[0030] Fig.11 It is a schematic diagram of the three-dimensional structure of the first wedge block of the present invention.

[0031] Fig.12 It is a schematic diagram of the three-dimensional structure of the second screw rod of the present invention.

[0032] In the figure: 1, box; 2, cable; 21, insulation layer; 22, conductive core; 100, meter body; 101, slider; 102, slide groove; 110, first fixed wire piece; 120, second fixed wire piece; 121, fixed wire plate; 122, first spring; 123, pick; 124, connecting rod; 125, clamping bolt; 130, first positioning piece; 140, second positioning piece; 141, elastic piece; 150, mounting shell; 151, sliding block; 152, second spring; 160, first screw rod; 161, first bearing; 162, first thread sleeve; 163, second thread sleeve; 164, limit slide Plate; 170, drive assembly; 171, gear; 172, first rack; 1721, lower tooth segment; 1722, upper tooth segment; 173, second rack; 174, first push rod; 175, slide rod; 176, third spring; 180, first wedge block; 181, second wedge block; 182, fourth spring; 183, plug rod; 184, second push rod; 185, fifth spring; 190, first electric contact piece; 200, second electric contact piece; 210, second screw rod; 211, second bearing; 212, third thread sleeve; 213, fourth thread sleeve; 214, twist; 215, positioning bolt. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1: This embodiment is intended to promote the solution of the problem that the prior art requires that the electric meter be fixed inside the electric meter box first, and then the cable end is inserted into the terminal post of the electric meter, and the cable end is connected to the terminal post by screws, so that the cable is electrically connected to the electric meter. However, the number of cables that need to be connected to the electric meter in the electric meter box is large, and connecting by screws is time-consuming and labor-intensive, making it inconvenient to install the electric meter in the electric meter box. Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.12 A meter box device for plug-in installation of an electric meter includes a box body 1, a cable 2 arranged inside the box body 1, and an electric meter body 100 arranged in the box body 1. The cable 2 here is connected to an electrical appliance outside the box body 1, and then the cable 2 is connected to the electric meter body 100 in the box body 1, so that the electric meter body 100 detects the power consumption of the electrical appliance, etc. The cable 2 includes an insulating layer 21 and a conductive core 22 wrapped in the insulating layer 21, and the conductive core 22 is set as a metal wire. A slider 101 is fixedly installed on the back side of the electric meter body 100, and a slide groove 102 is opened on the inner wall of the box body 1. The slide groove 102 is used in conjunction with the slider 101. The slider 101 is slidably inserted in the slide groove 102, so that the electric meter body 100 is slidably set on the inner wall of the box body 1.

[0035] See Figure 1 and Figure 5 The box 1 is provided with a first fixed wire sheet 110 and a second fixed wire sheet 120, which are used together to fix the end of the cable 2. The inner wall of the box 1 is fixedly provided with a fixed wire plate 121, and the first fixed wire sheet 110 and the second fixed wire sheet 120 are both slidably arranged in the fixed wire plate 121. Figure 6 and Figure 7The first wire fixing piece 110 and the second wire fixing piece 120 together form a circle, and the number of the first wire fixing piece 110, the second wire fixing piece 120 and the cable 2 are all set to be several. A first spring 122 is fixedly installed on the outer side of the first wire fixing piece 110, and the end of the first spring 122 is fixedly connected to the inner wall of the wire fixing plate 121. A paddle 123 is also fixedly installed on the lower side of the first wire fixing piece 110, and the middle part of the paddle 123 is slidably inserted in the lower side of the wire fixing plate 121. A connecting rod 124 is fixedly connected to the sides of several second wire fixing pieces 120, and a clamping bolt 125 is rotatably inserted in the side of the leftmost second wire fixing piece 120, and the middle part of the clamping bolt 125 is threadedly connected to the side of the wire fixing plate 121.

[0036] A first positioning piece 130 and a second positioning piece 140 are also movably provided inside the box body 1. The first positioning piece 130 and the second positioning piece 140 are used together to position the end of the cable 2. A section of the conductive core 22 at the end of the cable 2 is exposed outside the insulating layer 21. The first positioning piece 130 and the second positioning piece 140 are both insulated, and the first positioning piece 130 and the second positioning piece 140 position the exposed conductive core 22 at the end of the cable 2, so as to facilitate the accurate insertion of the end of the cable 2 into the meter body 100. A driving assembly 170 is provided between the meter body 100 and the first positioning piece 130 and the second positioning piece 140.

[0037] See Fig.12 The first electric contact 190 and the second electric contact 200 are movably arranged inside the electric meter body 100. The first electric contact 190 and the second electric contact 200 also form a ring together. The first electric contact 190 and the second electric contact 200 are used to electrically connect the cable 2 inserted into the electric meter body 100. The first electric contact 190 and the second electric contact 200 are also electrically connected to the electric meter body 100 through the cable 2.

[0038] A second screw rod 210 is rotatably arranged inside the meter body 100. The second screw rod 210 is arranged as a multi-section bidirectional screw rod. Both ends of the second screw rod 210 are rotatably arranged in the meter body 100 through second bearings 211 respectively. The second bearing 211 is arranged as a damping bearing. The damping bearing is a technical means well known to technicians in this field and will not be elaborated here. The outer side of the second screw rod 210 is threadedly connected with a third thread sleeve 212 and a fourth thread sleeve 213, and the third thread sleeve 212 and the fourth thread sleeve 213 are respectively threadedly connected to the reverse thread of the second screw rod 210. The first electric contact piece 190 is fixedly connected to the third thread sleeve 212, and the second electric contact piece 200 is fixedly connected to the fourth thread sleeve 213.

[0039] A limiting slide 164 is also fixedly installed on the outside of the third thread sleeve 212 and the fourth thread sleeve 213. A groove body used in conjunction with the limiting slide 164 is opened on the inner wall of the meter body 100. The limiting slide 164 is slidably inserted in the groove body opened on the inner wall of the meter body 100 to prevent the third thread sleeve 212 and the fourth thread sleeve 213 from rotating together with the second screw rod 210. A turning knob 214 is rotatably inserted on the side of the meter body 100, and the end of the turning knob 214 is fixedly connected to one end of the second screw rod 210. A positioning bolt 215 is inserted on the side of the meter body 100, and a threaded groove that threads with the positioning bolt 215 is opened on the inner wall of the box body 1.

[0040] In this embodiment: when the electric meter body 100 is installed in the box body 1, the left hand holds the end of the cable 2, and the right hand moves the paddle 123 to the right, the first spring 122 is compressed, so that the first fixed wire piece 110 is away from the second fixed wire piece 120, and the end of the cable 2 passes through the fixed wire plate 121 from bottom to top, so that the conductive core 22 is located between the first positioning piece 130 and the second positioning piece 140, and then the right hand releases the paddle 123, so that the first fixed wire piece 110 is reset under the action of the rebound force of the first spring 122, and the insulating layer 21 of the end of the cable 2 is preliminarily clamped and fixed together with the second fixed wire piece 120, and then the clamping bolt 125 is screwed, so that the second fixed wire piece 120 is close to the first fixed wire piece 110, and the first spring 122 is further compressed, so that the insulating layer 21 of the end of the cable 2 is clamped more firmly; The electric meter body 100 is lowered downward, and the driving assembly 170 is used to make the first positioning piece 130 and the second positioning piece 140 first approach each other to adjust and position the conductive core 22 during the sliding process of the electric meter body 100, so that the conductive core 22 is located directly below the socket of the electric meter body 100, and then the first positioning piece 130 and the second positioning piece 140 move away from each other and then descend to the outside of the insulating layer 21, and finally, the first positioning piece 130 and the second positioning piece 140 are again close to each other to clamp the insulating layer 21 to prevent the cable 2 from loosening and falling off as much as possible, and at this time the electric meter body 100 is lowered to the lowest position; At the same time, the end of the cable 2 is inserted into the meter body 100, and the conductive core 22 is located between the first electric contact piece 190 and the second electric contact piece 200. The knob 214 is turned to drive the second screw rod 210 to rotate. The first electric contact piece 190 and the second electric contact piece 200 are clamped and fixed by the cooperation of the second screw rod 210 with the third wire sleeve 212 and the fourth wire sleeve 213. The meter body 100 is fixed to the inner wall of the box body 1 by the positioning bolt 215. In summary, by sliding the electric The meter body 100 enables the cable 2 to be inserted and removed from the meter body 100, thereby facilitating the rapid installation of the meter body 100 in the box body 1, and solving as much as possible the problem in the prior art that the meter must first be fixed inside the meter box, and then the cable end must be inserted into the terminal post of the meter, and the cable end must be connected to the terminal post by screws, so that the cable is electrically connected to the meter. However, a large number of cables need to be connected to the meter in the meter box, and connecting by screws is time-consuming and labor-intensive, making it inconvenient to install the meter in the meter box.

[0041] Embodiment 2: This embodiment is intended to solve the problem that it is difficult to control the opening and closing of the first positioning piece 130 and the second positioning piece 140, which easily affects the accurate insertion of the cable 2 into the meter body 100. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 , Figure 3 , Figure 8 , Fig. 9 , Fig.10 The first positioning piece 130 and the second positioning piece 140 together form a circular ring. The number of the first positioning piece 130 and the second positioning piece 140 is the same as that of the cable 2. The inner ring of the first positioning piece 130 and the inner ring of the second positioning piece 140 are fixedly installed with an elastic piece 141. A mounting shell 150 is slidably arranged inside the box body 1. Sliding blocks 151 are fixedly installed at both ends of the mounting shell 150. A groove body used in conjunction with the sliding block 151 is opened on the inner wall of the box body 1. The sliding block 151 is slidably inserted in the groove body opened on the inner wall of the box body 1. A second spring 152 is installed on the lower side of the sliding block 151, and the end of the second spring 152 is fixedly connected to the box body 1.

[0042] See Figure 1 , Fig. 9 and Fig.10A first screw rod 160 is rotatably arranged inside the mounting shell 150, and first bearings 161 are installed at both ends of the first screw rod 160. The first bearings 161 are arranged as damping bearings. Two first bearings 161 are respectively installed on both sides of the mounting shell 150, and the inner ring of the first bearing 161 is fixedly fitted with the outer side of the first screw rod 160, and the outer ring of the first bearing 161 is fixedly fitted with the inner wall of the mounting shell 150. The outer side of the first screw rod 160 is threadedly connected with a first thread sleeve 162 and a second thread sleeve 163. The first screw rod 160 is arranged as a multi-section bidirectional screw rod, and the third thread sleeve 212 and the fourth thread sleeve 213 are respectively threadedly connected to the reverse threads of the second screw rod 210, so that the third thread sleeve 212 and the fourth thread sleeve 213 can be close to or away from each other.

[0043] The number of the first wire sleeves 162 is the same as the number of the first positioning pieces 130, and the first positioning pieces 130 are fixedly connected to the first wire sleeves 162 respectively. The number of the second wire sleeves 163 is the same as the number of the second positioning pieces 140, and the second positioning pieces 140 are fixedly connected to the second wire sleeves 163 respectively. Limiting slides 164 are fixedly installed on the outsides of the first wire sleeves 162 and the second wire sleeves 163. A groove body used in conjunction with the limiting slide 164 is provided on the inner wall of the mounting shell 150. The limiting slide 164 is slidably inserted in the groove body provided on the inner wall of the mounting shell 150 to prevent the first wire sleeves 162 and the second wire sleeves 163 from rotating together with the first screw rod 160. The first positioning piece 130 and the second positioning piece 140 are both arranged on the outside of the mounting shell 150.

[0044] See Figure 8 and Fig. 9 , one end of the first screw rod 160 is arranged outside the mounting shell 150, and the driving assembly 170 includes a gear 171 fixedly mounted on the end of the first screw rod 160 outside the mounting shell 150, a first rack 172 and a second rack 173 fixedly mounted on the outer wall of the meter body 100, and a first push rod 174 fixedly mounted on the upper side of one of the sliding blocks 151; The first rack 172 and the second rack 173 are intermittently meshed with the gear 171. The first rack 172 includes a lower tooth segment 1721 and an upper tooth segment 1722, and the lower tooth segment 1721, the upper tooth segment 1722 and the second rack 173 are intermittently meshed with the gear 171 respectively. The first push rod 174 is slidably arranged in the inner wall of the box body 1. A sliding rod 175 is slidably inserted at the upper end of the first push rod 174. A third spring 176 is arranged inside the first push rod 174. The two ends of the third spring 176 are respectively connected to the sliding rod 175 and the first push rod 174. The rigidity of the third spring 176 is greater than the rigidity of the second spring 152. The upper end of the sliding rod 175 intermittently conflicts with the slider 101.

[0045] In this embodiment: the meter body 100 drives the first rack 172 and the second rack 173 to descend together, so that the lower tooth segment 1721 of the first rack 172 first meshes with the gear 171, driving the first screw rod 160 to rotate, and the first screw rod 160 cooperates with the first wire sleeve 162 and the second wire sleeve 163 to make the first positioning piece 130 and the second positioning piece 140 approach each other to clamp the conductive core 22, and position the conductive core 22, and then, the lower tooth segment 1721 is disengaged from the gear 171, and at the same time, the second rack 173 is meshed with the other side of the gear 171, so that the first positioning piece 130 and the second positioning piece 140 are moved away from each other, and the second rack 173 is disengaged from the gear 171 after reset; Then the slider 101 contacts the first push rod 174, so that the first push rod 174 pushes the mounting shell 150 and the meter body 100 to move downward together, and the second spring 152 is compressed, so that the first positioning piece 130 and the second positioning piece 140 move down to the side of the insulating layer 21, and the slider 101 continues to move downward. At this time, the mounting shell 150 moves down to the lowest position and stops, so that the third spring 176 begins to be compressed. Moreover, through the engagement of the upper tooth segment 1722 with the gear 171, the first positioning piece 130 and the second positioning piece 140 are brought close to each other again, and the insulating layer 21 is clamped and fixed, which facilitates the control of the opening and closing of the first positioning piece 130 and the second positioning piece 140, so that the cable 2 can be accurately inserted into the meter body 100.

[0046] Embodiment 3: This embodiment is intended to promote the solution of the problem that when the lower tooth segment 1721 and the second rack 173 are respectively engaged with the gear 171, the mounting shell 150 is easily pressed down, thereby easily affecting the positioning effect of the first positioning piece 130 and the second positioning piece 140 on the conductive core 22. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 , Figure 3 , Fig. 9 and Fig.11 A first wedge block 180 is slidably provided on the inner wall of the box body 1, and a second wedge block 181 used in conjunction with the first wedge block 180 is also slidably provided on the inner wall of the box body 1. A fourth spring 182 is installed on the outer side of the first wedge block 180, and the end of the fourth spring 182 is fixedly connected to the box body 1. A plug rod 183 is fixedly installed on the outer side of the first wedge block 180, and a slot slidably matched with the plug rod 183 is opened on the side of one of the sliding blocks 151, and the end of the plug rod 183 is slidably inserted into the slot opened on the side of the sliding block 151. A second push rod 184 is fixedly installed on the outer side of the second wedge block 181, and the second push rod 184 is slidably provided in the inner wall of the box body 1, and the upper end of the second push rod 184 also intermittently conflicts with the slider 101, and a fifth spring 185 is installed on the lower side of the second push rod 184, and the lower end of the fifth spring 185 is fixedly connected to the inner wall of the box body 1.

[0047] See Fig.11 The first wedge block 180 and the second wedge block 181 are both set to a triangular block shape, so that when the second wedge block 181 moves downward, the upper inclined surface of the first wedge block 180 slides with the lower inclined surface of the second wedge block 181; when the second wedge block 181 moves upward and resets, the lower inclined surface of the first wedge block 180 slides with the upper inclined surface of the second wedge block 181, thereby facilitating the upward and reset of the second wedge block 181.

[0048] In this embodiment: when the lower tooth segment 1721 and the second rack 173 are respectively engaged with the gear 171, the sliding block 151 and the mounting shell 150 remain stationary due to the restriction of the insertion rod 183 on the sliding block 151, thereby improving the positioning effect of the first positioning piece 130 and the second positioning piece 140 on the conductive core 22. When the second rack 173 is disengaged from the gear 171, the descending slider 101 moves the second wedge block 181 downward through the second push rod 184. Through the cooperation of the second wedge block 181 and the first wedge block 180, the first wedge block 180 drives the insertion rod 183 to be pulled out of the sliding block 151, thereby releasing the restriction on the movable block. Subsequently, the slider 101 pushes the sliding block 151 downward through the first push rod 174, thereby facilitating the first positioning piece 130 and the second positioning piece 140 to clamp the insulating layer 21.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A plug-in type electric meter box device, comprising a box (1), a cable (2) arranged inside the box (1), and an electric meter body (100) arranged inside the box (1), characterized in that: A first wire fixing piece (110) and a second wire fixing piece (120) are movably provided inside the box (1) and are used to fix the ends of the cables (2); A first positioning piece (130) and a second positioning piece (140) are also movably provided inside the box (1) for positioning the end of the cable (2); A driving assembly (170) is arranged between the electric meter body (100) and the first positioning piece (130) and the second positioning piece (140); a first electric contact piece (190) and a second electric contact piece (200) are movably arranged inside the electric meter body (100); the first electric contact piece (190) and the second electric contact piece (200) are used to electrically connect to the cable (2); and the first electric contact piece (190) and the second electric contact piece (200) are also electrically connected to the electric meter body (100) via the cable (2).

2. The plug-in type electric meter box device according to claim 1, characterized in that: The cable (2) comprises an insulating layer (21) and a conductive core (22) wrapped in the insulating layer (21); a slider (101) is installed on the back side of the electric meter body (100); a slide groove (102) is provided on the inner wall of the box body (1); the slide groove (102) is used in conjunction with the slider (101); and the slider (101) is slidably inserted in the slide groove (102).

3. The plug-in type electric meter box device according to claim 1, characterized in that: A wire fixing plate (121) is installed on the inner wall of the box body (1), the first wire fixing piece (110) and the second wire fixing piece (120) are both slidably arranged in the wire fixing plate (121), the first wire fixing piece (110) and the second wire fixing piece (120) together form a circular ring, the number of the first wire fixing piece (110), the second wire fixing piece (120) and the cable (2) is set to be a plurality, a first spring (122) is installed on the outer side of the first wire fixing piece (110), the end of the first spring (122) is connected to the inner wall of the wire fixing plate (121), and a paddle (123) is also installed on the outer side of the first wire fixing piece (110), the middle part of the paddle (123) is slidably inserted into the lower side of the wire fixing plate (121).

4. The plug-in type electric meter box device according to claim 3, characterized in that: The sides of a plurality of the second wire fixing plates (120) are commonly connected to a connecting rod (124), wherein a clamping bolt (125) is rotatably inserted into the side of one of the second wire fixing plates (120), and the middle portion of the clamping bolt (125) is threadedly connected to the side of the wire fixing plate (121).

5. The plug-in type electric meter box device according to claim 2, characterized in that: The first positioning piece (130) and the second positioning piece (140) together form a circular ring. The number of the first positioning piece (130) and the second positioning piece (140) is the same as the number of the cables (2). The inner ring of the first positioning piece (130) and the inner ring of the second positioning piece (140) are both installed with elastic pieces (141). A mounting shell (150) is slidably arranged inside the box body (1). Sliding blocks (151) are installed at both ends of the mounting shell (150). The sliding blocks (151) are slidably arranged in the inner wall of the box body (1). A second spring (152) is installed on the lower side of the sliding block (151), and the end of the second spring (152) is connected to the box body (1).

6. The plug-in type electric meter box device according to claim 5, characterized in that: A first screw rod (160) is arranged inside the mounting shell (150), and first bearings (161) are installed at both ends of the first screw rod (160). The two first bearings (161) are respectively installed on both sides of the mounting shell (150), and the inner ring of the first bearing (161) is in contact with the outer side of the first screw rod (160), and the outer ring of the first bearing (161) is in contact with the inner wall of the mounting shell (150). The outer side of the first screw rod (160) is threadedly connected with a first thread sleeve (162) and a second thread sleeve (163), and the number of the first thread sleeves (162) is the same as the number of the first positioning pieces (130). The first positioning pieces (130) are divided into The first thread sleeve (162) and the second thread sleeve (163) are connected to the first thread sleeve (162), the number of the second thread sleeve (163) is the same as the number of the second positioning pieces (140), the second positioning pieces (140) are connected to the second thread sleeves (163), the outer sides of the first thread sleeve (162) and the second thread sleeve (163) are both provided with limiting slides (164), the inner wall of the mounting shell (150) is provided with a groove body used in conjunction with the limiting slides (164), the limiting slides (164) are slidably inserted in the groove body provided on the inner wall of the mounting shell (150), and the first positioning piece (130) and the second positioning piece (140) are both provided outside the mounting shell (150).

7. The plug-in type electric meter box device according to claim 6, characterized in that: One end of the first screw rod (160) is arranged outside the mounting shell (150), and the driving assembly (170) comprises a gear (171) mounted on the end of the first screw rod (160) outside the mounting shell (150), a first rack (172) and a second rack (173) mounted on the outer wall of the electric meter body (100), and a first push rod (174) mounted on the upper side of one of the sliding blocks (151); The first rack (172) and the second rack (173) are intermittently meshed with the gear (171); the first rack (172) comprises a lower tooth segment (1721) and an upper tooth segment (1722); and the lower tooth segment (1721), the upper tooth segment (1722) and the second rack (173) are intermittently meshed with the gear (171) respectively; the first push rod (174) is slidably arranged in the inner wall of the box body (1); a sliding rod (175) is slidably inserted at the upper end of the first push rod (174); a third spring (176) is arranged inside the first push rod (174); two ends of the third spring (176) are respectively connected to the sliding rod (175) and the first push rod (174); the rigidity of the third spring (176) is greater than the rigidity of the second spring (152); and the upper end of the sliding rod (175) intermittently contacts the slider (101).

8. The plug-in type electric meter box device according to claim 5, characterized in that: A first wedge block (180) is slidably disposed on the inner wall of the box body (1), and a second wedge block (181) used in conjunction with the first wedge block (180) is also slidably disposed on the inner wall of the box body (1). A fourth spring (182) is installed on the outer side of the first wedge block (180), and the end of the fourth spring (182) is connected to the box body (1). An insertion rod (183) is installed on the outer side of the first wedge block (180), and one of the sliding blocks (151) has a side opening that is slidably engaged with the insertion rod (183). The end of the insertion rod (183) is slidably inserted into a slot provided on the side of the sliding block (151); a second push rod (184) is installed on the outside of the second wedge block (181); the second push rod (184) is slidably arranged in the inner wall of the box body (1), and the upper end of the second push rod (184) also intermittently abuts against the sliding block (101); a fifth spring (185) is installed on the lower side of the second push rod (184); the lower end of the fifth spring (185) is connected to the inner wall of the box body (1).

9. The plug-in type electric meter box device according to claim 8, characterized in that: The first wedge-shaped block (180) and the second wedge-shaped block (181) are both configured as triangular blocks; When the second wedge-shaped block (181) moves downward, the upper inclined surface of the first wedge-shaped block (180) and the lower inclined surface of the second wedge-shaped block (181) are slidably matched; When the second wedge-shaped block (181) moves upward to reset, the lower inclined surface of the first wedge-shaped block (180) and the upper inclined surface of the second wedge-shaped block (181) are slidably matched.

10. The plug-in type electric meter box device according to claim 6, characterized in that: A second screw rod (210) is disposed inside the electric meter body (100); two ends of the second screw rod (210) are rotatably disposed inside the electric meter body (100) via second bearings (211); a third threaded sleeve (212) and a fourth threaded sleeve (213) are threadedly connected to the outer side of the second screw rod (210); the first electric contact piece (190) is connected to the third threaded sleeve (212); the second electric contact piece (200) is connected to the fourth threaded sleeve (213); the third threaded sleeve (212) and the fourth threaded sleeve (213) are connected to the outer side of the second screw rod (210); The limiting slide (164) is also installed on the outside of the fourth thread sleeve (213), and the limiting slide (164) is slidably inserted into the inside of the meter body (100). A twist knob (214) is rotatably inserted into the side of the meter body (100), and the end of the twist knob (214) is connected to one end of the second threaded rod (210). A positioning bolt (215) is inserted into the side of the meter body (100), and a thread groove that is threadably matched with the positioning bolt (215) is provided on the inner wall of the box body (1).

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