Protective direct-current voltage and current high-precision collector

Abstract

The invention discloses a protective direct-current voltage and current high-precision collector, and relates to the technical field of current and voltage measuring instruments. Comprising a collector shell and a collector body arranged in the collector shell, a first protective cover is arranged at the top of the collector body, a second protective cover and a third protective cover located on one side of the second protective cover are arranged at the bottom of the collector body, a fence is arranged on one side of the second protective cover, and the third protective cover is movably clamped to one side of the second protective cover through the fence. Compared with an existing collector in the market, the collector has the advantages that the measurement interface, the function keys and the display screen on the collector body are protected by unfolding the protection assembly, and the problems that the measurement interface is corroded, the collector body cannot be used and the measurement precision is poor due to the fact that the collector body is corroded by water stains, dust or other pollutants are effectively solved; the collector body is protected through the first protective cover, the second protective cover and the third protective cover, the situation that the collector body is collided is effectively avoided, and the collector is more resistant to falling and collision.

Description

Technical Field

[0001] The invention relates to the technical field of current and voltage measuring instruments, in particular to a protective direct current voltage and current high-precision collector. Background Art

[0002] A desktop digital multimeter is a multifunctional and multi-range measuring instrument, which can generally measure DC current, DC voltage, etc. The current desktop digital multimeter includes a shell and a main display screen, which can directly display the reading of the measured data, but still has the following shortcomings: large size, although it can be moved at will, but it needs AC power supply to use, although the measured readings and power supply curve values ​​can be saved, but the data cannot be uploaded to the cloud database for storage; other handheld multimeters can be moved at will, but in terms of measurement, it is impossible to view the real-time discharge waveform trend chart, or the power supply waveform trend chart. At present, some handheld multimeters can view the real-time discharge waveform trend chart, but there are still the following shortcomings when using them:

[0003] Although a multifunctional handheld multimeter can display a real-time discharge waveform trend graph, it has multiple measurement interfaces that are exposed. When carried around, they are easily corroded by water stains, dust or other contaminants, which may cause the measurement interfaces to short-circuit, resulting in poor measurement accuracy or even inability to measure, and unsatisfactory results. Summary of the invention

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a protective DC voltage and current high-precision collector, comprising a collector housing and a collector body arranged inside the collector housing, a shield 1 is arranged on the top of the collector body, a shield 2 and a shield 3 located on one side of the shield 2 are arranged on the bottom of the collector body, a fence is arranged on one side of the shield 2, the shield 3 is movably connected to one side of the shield 2 through the fence, and an inclined block 1 for locking the shield 3 is arranged on the bottom of one side of the shield 2;

[0005] Slideways are provided at both ends of one side of the collector housing, and a limit channel and an avoidance channel are provided on both sides of the inner wall of the slideway;

[0006] The two sides of the shield are provided with storage chambers 1 corresponding to the two slideways respectively, the middle position of the shield is provided with a storage chamber 2 which is connected with the storage chambers 1 on both sides, and the storage chambers 2 and 1 are provided with a protective component;

[0007] The protection assembly includes a support rib and a connector, a plurality of support ribs are arranged inside the second storage chamber, two ends of the support ribs extend to the inside of the two first storage chambers respectively, and guide pulleys are arranged at both ends of the support ribs;

[0008] Several of the support ribs are connected together by a waterproof cloth, and a rubber band 1 located inside the second storage chamber is further provided between two adjacent support ribs, a positioning groove is provided on the top of one side of the shield 1, and the connector is movably provided inside the positioning groove, one end of the connector extends to the inside of the second storage chamber and is provided with a positioning hoop, and both ends of the positioning hoop extend to the inside of the two first storage chambers respectively and are provided with guide pulleys, the positioning hoop is connected to one of the support ribs by the rubber band 1, and a rubber band 2 is provided on the side of the support rib farthest from the positioning hoop, and an end of the rubber band 2 away from the support rib is connected to one side of the inner wall of the second storage chamber;

[0009] The two sides of the shield two and the shield three are jointly provided with storage cavities three corresponding to the two slide grooves respectively, and one side of the shield three is provided with a storage limit groove connected with the storage cavities three on both sides.

[0010] As a preferred technical solution of the present invention, the centers of shield three and shield two are consistent, shield three and shield two form a semicircle, shield one is semicircular, the outer diameter of shield two is consistent with the outer diameter of shield one, a slope transition is provided between one side of shield one and one side of the collector shell, a slope transition is provided between one side of shield three and one side of the collector shell, and the slope slope is greater than the slope slope between shield one and the collector shell.

[0011] As a preferred technical solution of the present invention, the top of one end of the limiting channel extends to the interior of the storage chamber one and is provided with a limiting folded edge, the bottom of one end of the limiting channel extends to the interior of the storage chamber one and is provided with an arc-shaped limiting portion, and one end of the avoidance channel extends to the interior of the storage chamber one and is provided with an arc-shaped guide portion, and the limiting folded edge and the arc-shaped limiting portion are outwardly expanded.

[0012] As a preferred technical solution of the present invention, the length of the rubber band 2 is greater than that of the rubber band 1, and an anti-pull cloth is provided between two adjacent support bands and between the support band and the positioning hoop. The rubber band 1 and the rubber band 2 are both flat, and the anti-pull cloth is flat, and the width of the anti-pull cloth is greater than the flat shape.

[0013] As a preferred technical solution of the present invention, stabilizing blocks are provided at both ends of the support rib and the positioning hoop, the guide pulley is rotatably arranged on one side of the stabilizing block, the length of one end of the stabilizing block away from the support rib is greater than the diameter of the guide pulley, and the thickness of the stabilizing block is less than the diameter of the guide pulley.

[0014] As a preferred technical solution of the present invention, a card block is provided on one side of the enclosure, a limiting card slot movably engaged with the card block and a locking slot located below the limiting card slot are provided on one side of the shield two, one side of the inner wall of the locking slot is an inclined surface, one end of the inclined block one extends to the interior of the locking slot, and a spring one is provided on the other end of the inclined block one.

[0015] As a preferred technical solution of the present invention, a driving bolt is rotatably provided at the bottom of the second shield, and a threaded sleeve is provided on one end of the driving bolt with a bevel block 2, and one end of the bevel block 2 away from the driving bolt is in conflict with the bevel surface of one end of the bevel block 1, and an elastic pad is provided at the bottom of the second shield, one end of which is connected to the bottom of the third shield.

[0016] As a preferred technical solution of the present invention, a positioning hole is provided inside the connecting head, a storage slot is provided on one side of the shield three, a limiting buckle and a spring two located on one side of the limiting buckle are also provided inside one side of the shield three, one end of the limiting buckle extends to one side of the shield three, and the other end extends to the inside of the storage slot.

[0017] As a preferred technical solution of the present invention, the interior of the shield one is provided with no less than two buffer pads one, and the two buffer pads one are respectively fitted with the top two sides of the collector body, and the interiors of the shields two and three are respectively provided with buffer pads two and three, and the buffer pads two and three are respectively fitted with the bottom two sides of the collector body, a display screen is embedded in the top of one side of the collector body, and a battery cover and a charging port located on one side of the battery cover are provided at the bottom of the other side.

[0018] As a preferred technical solution of the present invention, a bracket storing groove is provided on one side of the collector housing, a main bracket is hingedly connected to the inside of the bracket storing groove, a sub-bracket is hingedly connected to the inside of the main bracket, a buckle one is provided inside the main bracket, a buckle two matching with buckle one is provided at one end of the sub-bracket, buckle three is provided on both sides of the main bracket, buckle grooves matching with buckle three are provided on both sides of the inner wall of the bracket storing groove, a hook hole is provided inside the sub-bracket, and a charging port waterproof plug corresponding to the charging interface is nested on one side of the inner wall of the bracket storing groove.

[0019] Compared with the prior art, the present invention provides a protective DC voltage and current high-precision collector, which has the following beneficial effects:

[0020] 1. Compared with the existing collectors on the market, this protective DC voltage and current high-precision collector protects the measurement interface, function buttons and display screen on the collector body by unfolding the protection components, effectively preventing the collector body from being corroded by water stains, dust or other pollutants, resulting in corrosion of the measurement interface, unusability and poor measurement accuracy. The collector body is protected by protective shields 1, 2 and 3, effectively preventing the collector body from being bumped and collisioned, making it more resistant to falling and collision.

[0021] 2. For this protective DC voltage and current high-precision collector, when the anti-pull cloth is fully pulled open, the waterproof cloth between the two supporting ribs is still a little wrinkled. This design can reduce the pulling of the waterproof cloth and ensure the durability of the waterproof cloth. The elastic band and the anti-pull cloth are both flat. This design can avoid entanglement. The limit fold and the arc-shaped limit part are designed to expand outward, which can guide the stabilizing block and the guide pulley, making it easier for the guide slider and the guide pulley to enter the interior of the slide. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a protective DC voltage and current high-precision collector proposed by the present invention;

[0023] Figure 2 A schematic diagram of the structure of a collector housing of a protective DC voltage and current high-precision collector proposed by the present invention;

[0024] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0025] Figure 4 for Figure 2 A magnified view of the structure at B in the middle;

[0026] Figure 5 A schematic diagram of a protective DC voltage and current high-precision collector in a state where a collector housing and a collector body are separated;

[0027] Figure 6 A cross-sectional view of the collector housing structure of a protective DC voltage and current high-precision collector proposed by the present invention;

[0028] Figure 7 for Figure 6 A magnified view of the structure at center A;

[0029] Figure 8 for Figure 6 A magnified view of the structure at B in the middle;

[0030] Fig. 9This is a cross-sectional view of the structure of the second storage chamber of a protective DC voltage and current high-precision collector proposed by the present invention;

[0031] Fig.10 A schematic diagram of the supporting rib structure of a protective DC voltage and current high-precision collector proposed by the present invention;

[0032] Fig.11 A cross-sectional view of the connection state of the slideway and the stabilizing block of a protective DC voltage and current high-precision collector proposed by the present invention;

[0033] Fig.12 A cross-sectional view of a storage cavity and a slideway structure of a protective DC voltage and current high-precision collector proposed by the present invention;

[0034] Fig.13 A cross-sectional view of the connection state between the support ribs and the slideway of a protective DC voltage and current high-precision collector proposed by the present invention;

[0035] Fig.14 This is a cross-sectional view of the connection state between the storage chamber 3 and the slideway of a protective DC voltage and current high-precision collector proposed by the present invention;

[0036] Fig.15 A schematic diagram of the unfolded state of the protection component of a protection type DC voltage and current high-precision collector proposed by the present invention;

[0037] Fig.16 A schematic diagram of the connection state between the connector and the limit buckle of a protective DC voltage and current high-precision collector proposed by the present invention;

[0038] Fig.17 This is a main system block diagram of a protective DC voltage and current high-precision collector proposed by the present invention;

[0039] Fig.18 This is a system block diagram of a data reading method of a collector body of a protective DC voltage and current high-precision collector proposed by the present invention.

[0040] In the figure: 1. Collector housing; 101. Slide; 102. Limiting channel; 1021. Limiting folding edge; 1022. Arc-shaped limiting part; 103. Avoiding channel; 1031. Arc-shaped guiding part; 11. Collector body; 111. Display screen; 112. Battery cover; 113. Charging port; 12. Shield 1; 121. Storage chamber 1; 122. Storage chamber 2; 123. Buffer pad 1; 124. Positioning slot; 13. Shield 2; 131. Enclosure; 132. Block; 133. Oblique block 1; 134. Spring 1; 135. Oblique block 2; 136. Driving bolt; 137. Elastic pad; 138. Buffer pad 2; 14. Shield 3; 141. Limiting card slot ;142, storage limit slot;143, storage card slot;144, limit buckle;145, spring two;146, buffer pad three;147, locking slot;15, protection component;151, support rib;1511, stabilizer block;1512, guide pulley;152, waterproof cloth;153, rubber band one;154, anti-pull cloth;155, rubber band two;156, connector;1561, positioning hole;1562, positioning hoop;16, bracket storage slot;161, main bracket;162, auxiliary bracket;163, buckle one;164, buckle two;165, buckle three;166, buckle slot;167, charging port waterproof plug;168, hook hole;17, storage cavity three. DETAILED DESCRIPTION

[0041] 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.

[0042] See also Figure 1-18 A protective DC voltage and current high-precision collector comprises a collector housing 1 and a collector body 11 arranged inside the collector housing 1, a shield 12 is arranged on the top of the collector body 11, a shield 2 13 and a shield 3 14 located on one side of the shield 2 13 are arranged on the bottom of the collector body 11, a baffle 131 is arranged on one side of the shield 2 13, the shield 3 14 is movably connected to one side of the shield 2 13 through the baffle 131, and a bevel block 133 for locking the shield 3 14 is arranged on the bottom of one side of the shield 2 13.

[0043] Slideways 101 are provided at both ends of one side of the collector housing 1 , and a limiting channel 102 and an avoidance channel 103 are provided on both sides of the inner wall of the slideway 101 .

[0044] The two sides of the protective cover 12 are provided with storage chambers 121 corresponding to the two slideways 101 respectively, and the middle position of the protective cover 12 is provided with a storage chamber 122 connected with the storage chambers 121 on both sides. The storage chambers 122 and 121 are provided with a protective component 15. When dust enters the storage chambers 1 121, 122 and 17, it can be blown out with a hair dryer.

[0045] The protective component 15 includes support ribs 151 and a connector 156. A plurality of support ribs 151 are disposed inside the second storage cavity 122. Both ends of the support ribs 151 extend to the inside of the two first storage cavities 121 respectively. Both ends of the support ribs 151 are disposed with guide pulleys 1512.

[0046] Several of the support ribs 151 are connected together by a waterproof cloth 152, and an elastic band 153 located inside the second storage chamber 122 is also arranged between two adjacent support ribs 151. A positioning groove 124 is arranged on the top of one side of the protective cover 12, and the connecting head 156 is movably arranged inside the positioning groove 124. One end of the connecting head 156 extends to the inside of the second storage chamber 122 and is provided with a positioning hoop 1562. The two ends of the positioning hoop 1562 extend to the inside of the two storage chambers 121 respectively and are provided with a guide pulley 1512. The positioning hoop 1562 is connected to one of the support ribs 151 through the elastic band 153, and the side of the support rib 151 farthest from the positioning hoop 1562 is provided with an elastic band 2 155, and the end of the elastic band 2 155 away from the support rib 151 is connected to one side of the inner wall of the second storage chamber 122.

[0047] The two sides of the shield 2 13 and the shield 3 14 are jointly provided with storage cavities 3 17 corresponding to the two slide grooves respectively, and one side of the shield 3 14 is provided with a storage limit groove 142 connected with the storage cavities 3 17 on both sides.

[0048] See also Figure 17-18The collector body 11 is a high-precision DC voltage and current collector with display screen 111 and Wi F i function based on ESP32S3. It needs to be used with a measuring pen. The main control MCU part adopts Espressif Technology ESP32S3 chip, which integrates 2.4G Wi F i. The collector body 11 can collect input and output voltage, current, and power, and can detect voltage, current, and power status in real time. It can also record the power consumption waveform of the device. It has an automatic saving function for recorded files. The recorded files can be deleted when they are not needed. The recorded files can be uploaded to the cloud service, and the data can be previewed remotely. When uploading files to the cloud service, it is necessary to connect and pair with WiFi in advance. Cloud data can be uploaded only when there is a network. Compared with traditional handheld measuring instruments, the collector body 11 is smaller in size, easy to carry, and has high measurement accuracy. ESP32 integrates the communication module into the MCU. SP32 adopts low power consumption design and supports multiple sleep modes. The input voltage supply range is 5V-24V / 5A, and the output power supply range and measurement range are 5V-24V / 5A. In addition to USB power supply, it is equipped with a plug-in power supply terminal for power supply. A mobile power supply can be used for power supply when going out. In addition to the USB interface output, the output end is equipped with a plug-in terminal for output power supply. The buzzer responds twice when powered on. The LCD display 111 initializes to display the product name. There are four function options in the Menu interface: power monitoring, waveform trend, file storage, function setting, etc. Turn the rotary switch left and right to switch the Menu interface. Press the rotary switch to enter the selected Menu interface. Press the reset button once to reset to the device initialization state.The power monitoring interface can view voltage, current and power parameters in real time. When entering the waveform trend interface, click the wave wheel switch waveform to start recording. The waveform trend can view the voltage and current curves. The sliding curve can view the voltage value and current value. If you need to record the current waveform curve, you need to set the recording curve time. The recorded waveform is automatically saved inside the device. There is 8MB-FLASH storage inside ESP32S3. In addition to storing the factory equipment engineering code, the waveform trend recording file is stored inside ESP32S3-FLASH. After the recording is completed and saved, the interface will jump to prompt you to open the current recording curve, or upload the recorded waveform curve to the cloud data for storage. When uploading files, you must pair the WiFi connection in advance in the setting interface to upload. You can delete it when you don’t need it. After uploading the file, scan the QR code on the device interface to read the device waveform curve. You can also view the waveform trend by connecting to the computer, and record and print the voltage and current values ​​in real time. The data acquisition is done by INA226. The setting interface can upgrade the device and adjust the boot interface animation. Language selection currently only supports three languages, English, Chinese and Japanese. In addition, it has device calibration and network connection.

[0049] As a specific technical solution of this embodiment, the centers of the shield three 14 and the shield two 13 are consistent, the shield three 14 and the shield two 13 form a semicircle, the shield one 12 is semicircular, the outer diameter of the shield two 13 is consistent with the outer diameter of the shield one 12, a slope transition is provided between one side of the shield one 12 and one side of the collector shell 1, and a slope transition is provided between one side of the shield three 14 and one side of the collector shell 1, and the slope slope is greater than the slope slope between the shield one 12 and the collector shell 1.

[0050] In the present embodiment, the semicircular shield 12 can fully protect the top of the collector body 11, the semicircular shield 2 13 and the shield 3 14 can fully protect the bottom of the collector body 11, and the shield 12, the shield 2 13 and the shield 3 14 can prevent the collector body 11 from detaching from the inside of the collector shell 1. A slope transition is provided between one side of the shield 3 14 and one side of the collector shell 1, and the slope is greater than the slope between the shield 12 and the collector shell 1, thereby preventing the shield 12 from blocking the display screen 111 and facilitating the user to observe the display screen 111.

[0051] As a specific technical solution of this embodiment, the top of one end of the limiting channel 102 extends to the interior of the storage cavity 121 and is provided with a limiting folded edge 1021, the bottom of one end of the limiting channel 102 extends to the interior of the storage cavity 121 and is provided with an arc-shaped limiting portion 1022, and one end of the avoidance channel 103 extends to the interior of the storage cavity 121 and is provided with an arc-shaped guide portion 1031, and the limiting folded edge 1021 and the arc-shaped limiting portion 1022 are outwardly expanded.

[0052] In this embodiment, the width of the storage cavity 121 is greater than the diameter of the support rib 151, so that the two ends of the support rib 151 will not conflict or get stuck when moving inside the storage cavity 121, so as to adapt to the semicircular design of the shield 12. Fig.12 and 13 When the support rib 151 is pulled out from the interior of the storage chamber 121, the bottom of the two ends of the support rib 151 contacts the arc-shaped guide part 1031 through the guide pulley 1512 to reduce jamming. Although the two ends of the support rib 151 have enough space for movement inside the storage chamber 121, the setting of the storage chamber 2 122 limits the left and right swinging of the support rib 151, so that the two ends of the multiple support ribs 151 can be arranged in sequence inside the storage chamber 121, and there will be no left and right misalignment and jamming, and the situation that it cannot be pulled out will not occur. The design of the limiting folding edge 1021 and the arc-shaped limiting part 1022 is outwardly expanded, which can guide the stabilizing block 1511 and the guide pulley 1512, so that the guide slider and the guide pulley 1512 can enter the interior of the slideway 101 more easily. When the connector 156 is pulled, the connector 156 drives the positioning hoop 1562, and the positioning hoop 1562 passes through the rubber band 15 3 Pull the support rib 151, and the support rib 151 pulls the rear support rib 151 in turn through the rubber band 153, and the positioning hoop 1562 and the guide pulley 1512 at the bottom of the support rib 151 slide into the inside of the avoidance channel 103 along the arc-shaped guide portion 1031. At the same time, the stabilizing block 1511 moves to the inside of the limiting channel 102 through the arc-shaped limiting portion 1022. When the stabilizing block 1511 enters the inside of the limiting channel 102, the guide pulley 1512 does not contact the inner wall of the avoidance channel 103, so that the two ends of the support rib 151 contact the inner wall of the limiting channel 102 through the stabilizing block 1511. Compared with the contact between the guide pulley 1512 and the avoidance channel 103, the contact between the stabilizing block 1511 and the limiting channel 102 supports the support rib 151, which can improve the friction force, ensure the stability of the support rib 151, and is not easy to slide, thereby ensuring the stability of the protective component 15 after it is deployed.

[0053] As a specific technical solution of this embodiment, the length of the elastic band 2 155 is greater than that of the elastic band 1 153, and an anti-pull cloth 154 is provided between two adjacent support bands 151 and between the support band 151 and the positioning hoop 1562. The elastic band 1 153 and the elastic band 2 155 are both flat, and the anti-pull cloth 154 is flat, and the width of the anti-pull cloth 154 is greater than the flat shape.

[0054] In this embodiment, the length of the anti-pull cloth 154 is smaller than the waterproof cloth 152 between two adjacent support ribs 151. With this design, when the anti-pull cloth 154 is fully opened, the waterproof cloth 152 between the two support ribs 151 is still slightly wrinkled. This design can reduce the pulling on the waterproof cloth 152 and ensure the durability of the waterproof cloth 152. Both the elastic band 153 and the elastic band 2 155 are flat. This design can avoid entanglement and increase the elasticity. The length of the elastic band 2 155 is larger than the elastic band 153. The elastic band 2 155 is connected to the innermost support rib 151. The innermost support rib 151 will move to a position close to the positioning groove 124 after the protective component 15 is unfolded. The elastic band 2 155 is stretched to a large extent, so the length needs to be increased accordingly. The anti-pull cloth 154 is made of one or a blend of polyester and polytetrafluoroethylene, and the material of the waterproof cloth 152 is one of a polymer waterproof and breathable material, a PVC coated cloth, and a waterproof nylon cloth.

[0055] As a specific technical solution of this embodiment, stabilizing blocks 1511 are provided at both ends of the support rib 151 and the positioning hoop 1562, and the guide pulley 1512 is rotatably provided on one side of the stabilizing block 1511. The length of one end of the stabilizing block 1511 away from the support rib 151 is greater than the diameter of the guide pulley 1512, and the thickness of the stabilizing block 1511 is less than the diameter of the guide pulley 1512.

[0056] In this embodiment, after the stabilizing block 1511 slides into the interior of the limiting channel 102, it can stably support the supporting rib 151, thereby ensuring the stability of the supporting rib 151. The thickness of the stabilizing block 1511 is less than the thickness of the limiting channel 102. This design allows the stabilizing block 1511 to have sufficient room for movement inside the limiting channel 102, making the process of the stabilizing block 1511 sliding into and out of the limiting channel 102 smoother.

[0057] As a specific technical solution of this embodiment, a block 132 is provided on one side of the enclosure 131, and a limiting slot 141 movably engaged with the block 132 and a locking slot 147 located below the limiting slot 141 are provided on one side of the shield 2 13. One side of the inner wall of the locking slot 147 is an inclined surface. One end of the inclined block 133 extends to the interior of the locking slot 147, and the other end of the inclined block 133 is provided with a spring 134. A driving bolt 136 is rotatably provided at the bottom of the shield 2 13, and an inclined block 2 135 is threadedly sleeved on one end of the driving bolt 136. The end of the inclined block 2 135 away from the driving bolt 136 conflicts with the inclined surface of one end of the inclined block 133. An elastic pad 137 having one end connected to the bottom of the shield 3 14 is provided at the bottom of the shield 2 13.

[0058] In this implementation plan, refer to Figure 8 When installing the collector body 11, place the collector body 11 inside the collector housing 1, and make the limiting card slot 141 on one side of the shield three 14 face the enclosure 131 and the card block 132, and use a screwdriver to rotate the driving bolt 136. The inclined block is in the direction and cannot rotate by itself, and the driving bolt 136 can only rotate by itself and cannot move forward and backward, so that when the driving bolt 136 is rotated, the driving bolt 136 squeezes the inclined block two 135 to contact the inclined block one 133. After the inclined surface of the inclined block one 133 is contacted, a lateral thrust is generated on the inclined block one 133, so that the inclined block one 133 stretches the spring one 134, and the other end is inserted into the interior of the locking groove 147. The inclined surface of the other end of the inclined block one 133 contacts the inclined surface on one side of the locking groove 147, so that the shield three 141 The limiting card slot 141 on the side further presses against the enclosure 131 and the block 132, ensuring the connection stability of the shield three 14 and the shield two 13. When the collector body 11 needs to be removed, the driving bolt 136 is rotated in the opposite direction to make the inclined block two 135 disengage from the interference with the inclined block one 133. The inclined block one 133 is pulled by the spring one 134 to disengage from the interference with the locking slot 147. The user can slide the shield three 14 down to make the limiting card slot 141 disengage from the enclosure 131 and the block 132. The setting of the elastic pad 137, when the limiting card slot 141 is disengaged from the enclosure 131 and the block 132, naturally falls to the bottom of the shield two 13. The elastic pad 137 can suspend the shield three 14, which is more convenient when used again. After the shield three 14 is removed, the collector body 11 can be taken out.

[0059] As a specific technical solution of this embodiment, a positioning hole 1561 is provided inside the connecting head 156, a storage slot 143 is provided on one side of the shield three 14, a limiting buckle 144 and a spring two 145 located on one side of the limiting buckle 144 are also provided inside one side of the shield three 14, one end of the limiting buckle 144 extends to one side of the shield three 14, and the other end extends to the inside of the storage slot 143.

[0060] In this implementation plan, refer to Fig.15 and 16 When the protective assembly 15 is unfolded, one end of the connector 156 is inserted into the interior of the storage slot 143, and at the same time, one end of the connector 156 contacts the limit buckle 144 to compress the second spring 145 and retract. When the positioning hole 1561 is opposite to one end of the limit buckle 144, the limit buckle 144 resets and one end is inserted into the interior of the positioning hole 1561 to achieve the positioning of the connector 156. When unlocking, it is only necessary to press the limit buckle 144 to disengage the positioning air conditioner, and after the positioning hoop 1562 is taken out from the interior of the storage limit slot 142 through the connector 156, the support rib 151 enters the interior of the storage cavity 121 and the storage cavity 2 122 through the sequential contraction of the plurality of elastic bands 153 and the contraction of the elastic band 155. Figure 1 and Figure 3 At the same time, the positioning hoop 1562 is inserted into the storage limit groove 142 and the interior of the storage cavity 17. The positioning hoop 1562 and the storage limit groove 142 are both flat. After being inserted into the interior of the storage limit groove 142, there will be no shaking. Fig.14 The storage cavity three 17 is only used to store the two ends of the positioning hoop 1562, and the positioning hoop 1562 is tilted as a whole after entering the storage cavity three 17 and the storage limit groove 142. The shape of the waterproof cloth 152 between the positioning hoop 1562 and the supporting rib 151 on one side thereof needs to be cut according to the shape of the positioning hoop 1562 and the supporting rib 151 after unfolding, so as to ensure the protective effect of the protective assembly 15.

[0061] As a specific technical solution of this embodiment, the interior of the shield 12 is provided with no less than two buffer pads 123, and the two buffer pads 123 are respectively fitted with the top two sides of the collector body 11, and the interiors of the shield 2 13 and the shield 3 14 are respectively provided with buffer pads 2 138 and buffer pads 3 146, and the buffer pads 2 138 and buffer pads 3 146 are respectively fitted with the bottom two sides of the collector body 11, and a display screen 111 is embedded in the top of one side of the collector body 11, and a battery cover 112 and a charging port 113 located on one side of the battery cover 112 are provided at the bottom of the other side.

[0062] In this embodiment, one of the buffer pads 123 is U-shaped and wraps around the two ends of the collector body 11, and the buffer pad 2 138 is U-shaped and wraps around the two ends of the collector body 11, providing all-round shock-absorbing protection for the collector body 11. The buffer pads 123, 138 and 146 are all made of rubber.

[0063] As a specific technical solution of this embodiment, a bracket receiving groove 16 is provided on one side of the collector housing 1, and a main bracket 161 is hingedly connected inside the bracket receiving groove 16, and a sub-bracket 162 is hingedly connected inside the main bracket 161, and a buckle 163 is provided inside the main bracket 161, and a buckle 2 164 matching the buckle 163 is provided at one end of the sub-bracket 162, and buckles 165 are provided on both sides of the main bracket 161, and buckle grooves 166 matching the buckle 3 165 are provided on both sides of the inner wall of the bracket receiving groove 16, and a hook hole 168 is provided inside the sub-bracket 162, and a charging port waterproof plug 167 corresponding to the charging interface 113 is nested on one side of the inner wall of the bracket receiving groove 16.

[0064] In this embodiment, the charging port waterproof plug 167 is embedded in the inner wall of the bracket storage groove 16. The charging port waterproof plug 167 can be removed to use the charging interface 113. After the collector body 11 is removed, the battery cover 112 can be opened to replace the battery of the collector body 11. The battery can also be charged and used through the charging interface 113. The main bracket 161 is received in the bracket storage groove 16 through the snap-on three 165 and the snap-on groove 166. The auxiliary bracket 162 is received in the main bracket 161 through the snap-on two 164 and the snap-on one 163. It is more convenient to carry and use outside, and can be hung for use through the hook hole 168.

[0065] To sum up, compared with the existing collectors on the market, the protective DC voltage and current high-precision collector protects the measurement interface, function buttons and display screen 111 on the collector body 11 by unfolding the protection component 15, which effectively prevents the collector body 11 from being corroded by water stains, dust or other pollutants, resulting in corrosion of the measurement interface, unusability and poor measurement accuracy. The collector body 11 is protected by the protective cover 1 12, the protective cover 2 13 and the protective cover 3 14, which effectively prevents the collector body 11 from being bumped and is more resistant to falling and collision.

[0066] In this protective DC voltage and current high-precision collector, when the anti-pull cloth 154 is fully pulled open, the waterproof cloth 152 between the two supporting ribs 151 still has a little wrinkle. This design can reduce the pulling of the waterproof cloth 152 and ensure the durability of the waterproof cloth 152. The elastic band 153 and the anti-pull cloth 154 are both flat. This design can avoid entanglement. The limiting fold 1021 and the arc-shaped limiting portion 1022 are designed to expand outward, which can guide the stabilizing block 1511 and the guide pulley 1512, so that the guide slider and the guide pulley 1512 can more easily enter the interior of the slideway 101.

[0067] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations 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 includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective DC voltage and current high-precision collector, comprising a collector housing (1) and a collector body (11) arranged inside the collector housing (1), characterized in that: A shield 1 (12) is arranged on the top of the collector body (11), a shield 2 (13) and a shield 3 (14) located on one side of the shield 2 (13) are arranged on the bottom of the collector body (11), a baffle (131) is arranged on one side of the shield 2 (13), the shield 3 (14) is movably connected to one side of the shield 2 (13) through the baffle (131), and an inclined block 1 (133) for locking the shield 3 (14) is arranged on the bottom of one side of the shield 2 (13); Slideways (101) are provided at both ends of one side of the collector housing (1), and a limiting channel (102) and an avoidance channel (103) are provided on both sides of the inner wall of the slideway (101); The two sides of the protective cover (12) are provided with storage chambers (121) corresponding to the two slideways (101) respectively, and the middle position of the protective cover (12) is provided with a storage chamber (122) connected with the storage chambers (121) on both sides, and the storage chambers (122) and the storage chambers (121) are provided with a protective component (15) in the interior. The protection assembly (15) comprises a support rib (151) and a connector (156); a plurality of support ribs (151) are arranged inside the second storage cavity (122); two ends of the support rib (151) respectively extend into the interior of the two first storage cavities (121); and guide pulleys (1512) are arranged at both ends of the support rib (151); A plurality of the support ribs (151) are connected together by a waterproof cloth (152), and an elastic band (153) located inside the second storage chamber (122) is further provided between two adjacent support ribs (151). A positioning groove (124) is provided on the top of one side of the shield (12), and the connecting head (156) is movably provided inside the positioning groove (124). One end of the connecting head (156) extends to the inside of the second storage chamber (122) and is provided with a positioning hoop (1562). ), the two ends of the positioning hoop (1562) respectively extend to the inside of the two storage chambers (121) and are provided with guide pulleys (1512), the positioning hoop (1562) is connected to one of the support ribs (151) via a rubber band (153), a rubber band (155) is provided on the side of the support rib (151) farthest from the positioning hoop (1562), and an end of the rubber band (155) away from the support rib (151) is connected to one side of the inner wall of the second storage chamber (122); The two sides of the shield two (13) and the shield three (14) are jointly provided with storage chambers three (17) corresponding to the two slide grooves respectively, and one side of the shield three (14) is provided with a storage limit groove (142) connected with the storage chambers three (17) on both sides.

2. The protective DC voltage and current high-precision collector according to claim 1 is characterized in that: The centers of the shield three (14) and the shield two (13) are consistent, and the shield three (14) and the shield two (13) form a semicircle. The shield one (12) is semicircular, and the outer diameter of the shield two (13) is consistent with the outer diameter of the shield one (12). A slope transition is provided between one side of the shield one (12) and one side of the collector housing (1), and a slope transition is provided between one side of the shield three (14) and one side of the collector housing (1), and the slope gradient is greater than the slope gradient between the shield one (12) and the collector housing (1).

3. The protective DC voltage and current high-precision collector according to claim 1 is characterized in that: The top of one end of the limiting channel (102) extends to the interior of the storage chamber (121) and is provided with a limiting folded edge (1021); the bottom of one end of the limiting channel (102) extends to the interior of the storage chamber (121) and is provided with an arc-shaped limiting portion (1022); one end of the avoidance channel (103) extends to the interior of the storage chamber (121) and is provided with an arc-shaped guiding portion (1031); the limiting folded edge (1021) and the arc-shaped limiting portion (1022) are outwardly expanded.

4. The protective DC voltage and current high-precision collector according to claim 1 is characterized in that: The length of the second elastic band (155) is greater than that of the first elastic band (153), and an anti-pull cloth (154) is provided between two adjacent support bands (151) and between the support band (151) and the positioning hoop (1562). The first elastic band (153) and the second elastic band (155) are both flat, and the anti-pull cloth (154) is flat, and the width of the anti-pull cloth (154) is greater than the flat shape.

5. The protective DC voltage and current high-precision collector according to claim 1, characterized in that: Both ends of the support rib (151) and the positioning hoop (1562) are provided with a stabilizing block (1511); the guide pulley (1512) is rotatably arranged on one side of the stabilizing block (1511); the length of one end of the stabilizing block (1511) away from the support rib (151) is greater than the diameter of the guide pulley (1512); and the thickness of the stabilizing block (1511) is less than the diameter of the guide pulley (1512).

6. The protective DC voltage and current high-precision collector according to claim 1, characterized in that: A clamping block (132) is provided on one side of the enclosure (131), a limiting clamping slot (141) movably clamped with the clamping block (132) and a locking slot (147) located below the limiting clamping slot (141) are provided on one side of the shield (13), one side of the inner wall of the locking slot (147) is an inclined surface, one end of the inclined block (133) extends into the interior of the locking slot (147), and the other end of the inclined block (133) is provided with a spring (134).

7. The protective DC voltage and current high-precision collector according to claim 1, characterized in that: A driving bolt (136) is rotatably provided at the bottom of the second shield (13), and a second inclined block (135) is threadedly sleeved on one end of the driving bolt (136). An end of the second inclined block (135) away from the driving bolt (136) abuts against an inclined surface of one end of the first inclined block (133). An elastic pad (137) is provided at the bottom of the second shield (13) and one end of the elastic pad is connected to the bottom of the third shield (14).

8. The protective DC voltage and current high-precision collector according to claim 1, characterized in that: A positioning hole (1561) is provided inside the connector (156), a receiving card slot (143) is provided on one side of the shield three (14), a limiting buckle (144) and a spring two (145) located on one side of the limiting buckle (144) are also provided inside one side of the shield three (14), one end of the limiting buckle (144) extends to one side of the shield three (14), and the other end extends to the inside of the receiving card slot (143).

9. The protective DC voltage and current high-precision collector according to claim 1, characterized in that: The shield one (12) is provided with at least two buffer pads one (123) inside, and the two buffer pads one (123) are respectively fitted with the top two sides of the collector body (11); the shield two (13) and the shield three (14) are respectively provided with buffer pad two (138) and buffer pad three (146) inside, and the buffer pad two (138) and buffer pad three (146) are respectively fitted with the bottom two sides of the collector body (11); a display screen (111) is embedded in the top of one side of the collector body (11), and a battery cover (112) and a charging interface (113) located on one side of the battery cover (112) are provided at the bottom of the other side.

10. The protective DC voltage and current high-precision collector according to claim 1, characterized in that: A support receiving groove (16) is provided on one side of the collector housing (1), a main support (161) is hingedly connected inside the support receiving groove (16), a sub-support (162) is hingedly connected inside the main support (161), a buckle 1 (163) is provided inside the main support (161), a buckle 2 (164) matching the buckle 1 (163) is provided at one end of the sub-support (162), buckles 3 (165) are provided on both sides of the main support (161), buckle grooves (166) matching the buckle 3 (165) are provided on both sides of the inner wall of the support receiving groove (16), a hook hole (168) is provided inside the sub-support (162), and a charging port waterproof plug (167) corresponding to the charging interface (113) is embedded on one side of the inner wall of the support receiving groove (16).

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