A charging auxiliary device for soil testing equipment

Abstract

The present invention provides a charging auxiliary device for soil detection equipment, which relates to the field of charging auxiliary technology, and comprises an inner sleeve fixedly mounted on the battery, a fixing block being mounted on the inner wall of the inner sleeve, two compression springs being mounted on the side of the fixing block away from the inner sleeve, a follower plate being mounted on the two compression springs, an intermediate block being mounted in the middle of the follower plate, snake-shaped spring pieces being mounted on both sides of the intermediate block, the two snake-shaped spring pieces being respectively attached to the side surfaces of the follower plate, causing the snake-shaped spring pieces to expand due to heat, and the thermal expansion of the snake-shaped spring pieces will drive the telescopic block to slide along the limiting groove, thereby pushing the conductive spring piece to expand, so that the electrical connection between the conductive head and the conductive block is disconnected, and the power supply is cut off. This design can effectively prevent damage to the battery due to overcurrent, extend the service life of the battery, and improve the safety and reliability of the equipment.

Description

Technical Field

[0001] The present invention relates to the field of charging assistance technology, and more particularly, to a charging assistance device for soil detection equipment. Background Art

[0002] In current soil testing technology, portable soil testing equipment is widely used in agriculture, environmental monitoring and other fields due to its flexibility and convenience. These devices usually rely on battery power to work normally in the field or in an environment without power supply. However, battery power also brings new challenges, especially when the battery is exhausted, the device needs to charge the battery in time to ensure the continuity of the detection work and the accuracy of the data. Current management and battery protection during the charging process have become important links that cannot be ignored in equipment design.

[0003] In actual use, abnormal current increases often occur, which poses a serious threat to the safety of the equipment. If the power connection is not cut off in time under these circumstances, it may cause the battery to overheat, expand or even explode, causing equipment damage and safety hazards. Therefore, modern soil testing equipment must be equipped with an effective current monitoring and protection mechanism to automatically cut off the power supply when the current is abnormal to protect the safety of the battery and equipment. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the present invention provides a charging auxiliary device for soil detection equipment to solve the technical problems mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a charging auxiliary device for soil detection equipment, comprising a fixing frame and a battery mounted on a side of the fixing frame;

[0008] A disconnect mechanism, comprising an inner sleeve fixedly mounted on the battery, a fixed block mounted on the inner wall of the inner sleeve, two compression springs mounted on the side of the fixed block away from the inner sleeve, a follower plate mounted on the two compression springs, an intermediate block mounted in the middle of the follower plate, snake-shaped springs mounted on both sides of the intermediate block, the two snake-shaped springs respectively attached to the side surfaces of the follower plate, conductive springs symmetrically mounted on both sides of the fixed block, a telescopic block mounted on one end of the two snake-shaped springs away from the intermediate block, the telescopic block connected to the conductive spring; and

[0009] The fixing mechanism comprises a stop ring coaxially arranged with the inner sleeve, the stop ring is provided with a plurality of insertion holes at equal intervals, an insertion rod is mounted on the follower plate, and the insertion rod is clamped in the insertion hole.

[0010] Preferably, the disconnect mechanism further comprises two limiting grooves provided on both sides of the follower plate, the telescopic blocks on both sides are respectively slidably connected in the limiting grooves, a supporting sheet is mounted on the telescopic block, and the supporting sheet is connected to the conductive spring sheet.

[0011] Preferably, a support spring is installed on one side of the two conductive spring sheets close to the inner wall of the inner sleeve, the two support springs are respectively connected to the inner wall of the inner sleeve, and a conductive head is respectively installed on each of the conductive spring sheets.

[0012] Preferably, an intermediate rod is slidably provided inside the inner sleeve, two conductive blocks are symmetrically mounted on the intermediate rod, and the sides close to the two conductive blocks are insulated, the plurality of conductive heads are electrically attached to the two conductive blocks respectively, and the stop ring is mounted on the two conductive blocks.

[0013] Preferably, an external disk is installed on the middle block, and the external disk is attached to the internal sleeve. Two positioning strips with different diameters are symmetrically installed on the side wall of the middle rod. Two corresponding positioning grooves are also provided in the internal sleeve. The two positioning strips are respectively slidably connected in the positioning grooves. Two external wires are installed on the external disk, and one end of the two external wires passes through the external disk and the middle block and is electrically connected to the two conductive blocks, and the other end of the two external wires is connected to an external power supply device.

[0014] Preferably, a plurality of the fixing blocks are equidistantly arranged along the axis of the inner sleeve, a wire is installed on each of the fixing blocks, and the wires are electrically connected to the two conductive spring sheets respectively, a plurality of the wires are electrically connected to the two inner disks respectively, the two inner disks are electrically connected to the internal wires respectively, and the two internal wires are electrically connected to the batteries respectively.

[0015] Preferably, a plurality of guide rods are equidistantly arranged on one side of the intermediate block close to the fixed block, a plurality of guide sleeves are installed on one side of the fixed block close to the intermediate block, and the plurality of guide rods are slidably connected in the guide sleeves.

[0016] Preferably, the fixing mechanism further comprises two pull rods connected to the follower plate, and the two pull rods respectively pass through the fixing block, and top balls are respectively installed on the two pull rods, and the two top balls are fixedly arranged between them.

[0017] Preferably, two unbundling sleeves are symmetrically and slidably installed on the inner sleeve, a plurality of limit springs are installed between the two unbundling sleeves, and the unbundling sleeves are provided with the same number of lateral grooves as the fixed blocks, the top ball is stuck on the side wall of the unbundling sleeve, and the pull rod is slidably connected in the lateral groove.

[0018] Preferably, an electric push rod is provided on the fixing frame, a detection rod is installed on the protruding end of the electric push rod, the detection rod is inserted into the soil, and the electric push rod and the detection rod are electrically connected to the battery respectively.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides a charging auxiliary device for soil detection equipment, which has the following beneficial effects:

[0021] The device has an overcurrent protection function during the charging process. When the charging current increases abnormally, the heat on the conductive block will increase rapidly, causing the serpentine spring to expand due to heat. The thermal expansion of the serpentine spring will drive the telescopic block to slide along the limit groove, thereby pushing the conductive spring to expand, disconnecting the electrical connection between the conductive head and the conductive block, and cutting off the power supply. This design can effectively prevent overcurrent from damaging the battery, extend the battery life, and improve the safety and reliability of the equipment.

[0022] The device ensures the stability of the charging connection through the cooperation of the fixing mechanism and the disconnecting mechanism. When charging is required, the middle rod is inserted into the inner sleeve. The insertion angle is limited by the cooperation of the positioning strip and the positioning groove to ensure the accuracy of the connection. The insertion rod on the follower plate will be snapped into the insertion hole of the stop circle. The pull rod and top ball design of the fixing mechanism can ensure the stability and reliability of the follower plate. This multi-stage fixing mechanism not only improves the stability of the charging connection, but also reduces the problem of poor contact caused by vibration or external interference.

[0023] The device significantly reduces maintenance costs and increases the service life of the equipment through its reliable design and protection mechanism. The overcurrent protection function can effectively prevent the battery from being damaged by overcurrent and extend the service life of the battery. At the same time, through the cooperation of the fixing mechanism and the disconnecting mechanism, the stability and reliability of the charging connection are ensured, reducing failures and maintenance requirements caused by poor contact. This design not only reduces maintenance costs, but also improves the reliability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a charging auxiliary device for soil detection equipment in the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the inner sleeve and the unfastening sleeve in the present invention;

[0026] Figure 3 It is a schematic cross-sectional structural diagram of the inner sleeve in the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the fixed block and the internal disk in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the fixing block in the present invention;

[0029] Figure 6 It is a schematic cross-sectional structural diagram of the follower plate in the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the middle rod in the present invention;

[0031] Figure 8 It is a schematic diagram of the cross-sectional structure of the inner sleeve in the present invention.

[0032] In the figure: 11, fixing frame; 12, battery; 21, inner sleeve; 22, fixing block; 23, compression spring; 24, follower plate; 25, middle block; 26, serpentine spring; 27, conductive spring; 28, telescopic block; 29, limiting groove; 31, stop circle; 32, insertion hole; 33, insertion rod; 34, pull rod; 35, top ball; 36, release sleeve; 37, limiting spring; 38, lateral groove; 41, electric push rod; 42, detection rod; 210, support spring; 211, conductive head; 212, middle rod; 213, conductive block; 214, outer disk; 215, positioning strip; 216, positioning groove; 217, outer wire; 218, wire; 219, inner disk; 220, inner wire; 221, guide rod; 222, guide sleeve; 255, support sheet. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0035] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0036] See also Figures 1 to 8A charging auxiliary device for soil detection equipment includes a fixing frame 11 and a battery 12 installed on the side of the fixing frame 11, an electric push rod 41 is provided on the fixing frame 11, a detection rod 42 is installed at the protruding end of the electric push rod 41, the detection rod 42 is inserted into the soil, the electric push rod 41 and the detection rod 42 are respectively electrically connected to the battery 12, and a disconnection mechanism includes an inner sleeve 21 fixedly installed on the battery 12, a fixing block 22 is installed on the inner wall of the inner sleeve 21, two compression springs 23 are installed on the side of the fixing block 22 away from the inner sleeve 21, a follower plate 24 is installed on the two compression springs 23, an intermediate block 25 is installed in the middle position of the follower plate 24, and snake-shaped springs 26 are installed on both sides of the intermediate block 25, and the two snake-shaped springs 26 are respectively installed. The conductive springs 27 are symmetrically installed on the sides of the fixed block 22, which are fitted on the side of the follower plate 24. A telescopic block 28 is installed on the end of the two snake-shaped springs 26 away from the middle block 25, and the telescopic block 28 is connected to the conductive spring 27. The disconnection mechanism also includes two limit grooves 29 opened on both sides of the follower plate 24. The telescopic blocks 28 on both sides are respectively slidably connected in the limit grooves 29. A support sheet 255 is installed on the telescopic block 28, and the support sheet 255 is connected to the conductive spring 27. A support spring 210 is installed on one side of the two conductive springs 27 close to the inner wall of the inner sleeve 21. The two support springs 210 are respectively connected to the inner wall of the inner sleeve 21, and a conductive head 211 is respectively installed on each conductive spring 27. The inner sleeve 21 is provided with a sliding The middle rod 212 has two conductive blocks 213 symmetrically mounted on it, and the sides of the two conductive blocks 213 close to each other are in an insulated state, a plurality of conductive heads 211 are electrically attached to the two conductive blocks 213, a stop ring 31 is mounted on the two conductive blocks 213, an outer disk 214 is mounted on the middle block 25, the outer disk 214 is attached to the inner sleeve 21, two positioning bars 215 with different diameters are symmetrically mounted on the side wall of the middle rod 212, two corresponding positioning grooves 216 are also provided in the inner sleeve 21, the two positioning bars 215 are slidably connected in the positioning grooves 216, two external wires 217 are mounted on the external disk 214, and one end of the two external wires 217 passes through the external disk 214 and the middle block 25 to electrically The inner sleeve 21 is electrically connected to two conductive blocks 213, and the other ends of the two external wires 217 are connected to an external power supply device. A plurality of fixed blocks 22 are equidistantly arranged along the axis of the inner sleeve 21, and each fixed block 22 is respectively installed with a wire 218, and the wire 218 is respectively electrically connected to two conductive springs 27. The plurality of wires 218 are respectively electrically connected to two internal disks 219, and the two internal disks 219 are respectively electrically connected with an internal wire 220, and the two internal wires 220 are respectively electrically connected to the battery 12. A plurality of guide rods 221 are equidistantly arranged on one side of the middle block 25 close to the fixed block 22, and a plurality of guide sleeves 222 are installed on one side of the fixed block 22 close to the middle block 25, and the plurality of guide rods 221 are slidably connected in the guide sleeves 222.

[0037] When the battery 12 of the soil detection device needs to be charged, the middle rod 212 is first inserted into the inner sleeve 21. Since the diameters of the two positioning strips 215 are different, they can only be inserted according to the positions where the two positioning grooves 216 are opened, thereby limiting the angle. At this time, the distance between the multiple insertion rods 33 is greater than the diameter of the stop ring 31, and then the two conductive blocks 213 are respectively inserted into the inner sleeve 21 for fixing. At this time, the multiple release sleeves 36 are loosened, and the multiple follower plates 24 are driven to move toward the conductive block 213 under the action of the multiple compression springs 23, and the multiple conductive heads are made to move in the direction of the conductive block 213 under the action of the support springs 210. 211 are electrically connected to the two conductive blocks 213 respectively, and the multiple snake-shaped springs 26 are also attached to the conductive blocks 213. Since the two conductive blocks 213 are insulated, the multiple conductive heads 211 at both ends are electrically connected to the two conductive blocks 213 respectively, and then the multiple conductive springs 27 at the upper and lower ends are electrically connected to the conductive heads 211. Since the wires 218 are electrically connected to the conductive springs 27 and the two internal disks 219 respectively, and the two internal wires 220 are electrically connected to the battery 12 and the two internal disks 219 respectively, a loop is formed, and then the power supply can be charged.

[0038] When the current is abnormally large during the charging process, the two conductive blocks 213 will generate more heat due to the large current and then the temperature will rise. The multiple snake-shaped springs are attached to the conductive blocks 213 at both ends, so the temperature will rise accordingly. Since the multiple snake-shaped springs 26 are made of materials with a high thermal expansion coefficient, such as polyethylene and polypropylene, and are insulating materials, the thermal expansion coefficient of polyethylene and polypropylene can reach 100-200 × 10^-6 / °C, then after the serpentine spring piece 26 is heated, the serpentine setting will increase the expansion amount of thermal expansion, and the telescopic block 28 is limited in the limit groove 29, so the serpentine spring piece 26 will drive the telescopic block 28 to slide along the limit groove 29, and under the limiting action between the guide rod 221 and the guide sleeve 222, the middle block 25 will always be in the middle position, so the positions of the serpentine spring pieces 26 on both sides will not move relative to the fixed block 22, only the two ends will move, so the support pieces 255 on both sides can be pushed synchronously, because the support pieces 255 are installed on the telescopic block 28 and the conductive spring piece 27, the conductive spring piece 27 will be pushed upward to expand, and then the support spring 210 is compressed, so that the conductive head 211 is disconnected from the electrical connection with the conductive block 213, thereby disconnecting the power supply, so that the battery 12 can be protected from damage, and when the heat is reduced, the electrical connection can be restored to ensure normal use.

[0039] See also Figure 2 and Figure 5The fixing mechanism includes a stop ring 31 coaxially arranged with the inner sleeve 21, and a plurality of insertion holes 32 are equidistantly provided on the stop ring 31. An insertion rod 33 is installed on the follower plate 24, and the insertion rod 33 is clamped in the insertion hole 32. The fixing mechanism also includes two pull rods 34 connected to the follower plate 24, and the two pull rods 34 pass through the fixed block 22 respectively, and top balls 35 are respectively installed on the two pull rods 34, and the two top balls 35 are fixedly arranged between each other. Two unfastening sleeves 36 are symmetrically and slidably installed on the inner sleeve 21, and a plurality of limit springs 37 are installed between the two unfastening sleeves 36, and the unfastening sleeve 36 is provided with the same number of lateral grooves 38 as the fixed block 22, the top balls 35 are clamped on the side wall of the unfastening sleeve 36, and the pull rod 34 is slidably connected in the lateral groove 38.

[0040] When it is necessary to release the connection between the conductive block 213 and the inner sleeve 21, first pinch the two release sleeves 36, and then drive the top ball 35 to slide along the inclined surface of the release sleeve 36. Since the forces on both sides are the same, the two top balls 35 will slide upward synchronously, and then the follower plate 24 will move upward. At this time, the connection between the insertion rod 33 and the insertion hole 32 will be released, and the follower plate 24 will also move upward. At this time, the support sheet 255 will press on the conductive spring sheet 27, so that the conductive spring sheet 27 is in an expanded state to release the electrical connection with the conductive block 213, and then the conductive block 213 can be pulled out, thereby completing the use process.

[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A charging auxiliary device for soil detection equipment, comprising a fixing frame (11) and a battery (12) mounted on a side of the fixing frame (11); A disconnect mechanism, characterized by: The invention comprises an inner sleeve (21) fixedly mounted on the battery (12), a fixing block (22) being mounted on the inner wall of the inner sleeve (21), two compression springs (23) being mounted on the side of the fixing block (22) away from the inner sleeve (21), a follower plate (24) being mounted on the two compression springs (23), an intermediate block (25) being mounted in the middle of the follower plate (24), snake-shaped spring sheets (26) being mounted on both sides of the intermediate block (25), the two snake-shaped spring sheets (26) being respectively attached to the side surfaces of the follower plate (24), conductive spring sheets (27) being symmetrically mounted on both sides of the fixing block (22), and a telescopic block (28) being mounted on the ends of the two snake-shaped spring sheets (26) away from the intermediate block (25). The telescopic block (28) is connected to the conductive spring sheet (27), the disconnection mechanism further comprises two limit slots (29) provided on both sides of the follower plate (24), the telescopic blocks (28) on both sides are respectively slidably connected in the limit slots (29), a support sheet (255) is installed on the telescopic block (28), the support sheet (255) is connected to the conductive spring sheet (27), a support spring (210) is installed on one side of the two conductive spring sheets (27) close to the inner wall of the inner sleeve (21), the two support springs (210) are respectively connected to the inner wall of the inner sleeve (21), and a conductive head (211) is respectively installed on each conductive spring sheet (27), and an intermediate rod (212) is slidably provided in the inner sleeve (21), Two conductive blocks (213) are symmetrically mounted on the middle rod (212), and the sides of the two conductive blocks (213) that are close to each other are in an insulated state. The plurality of conductive heads (211) are electrically attached to the two conductive blocks (213), respectively. An external disk (214) is mounted on the middle block (25), and the external disk (214) is attached to the internal sleeve (21). Two positioning strips (215) with different diameters are symmetrically mounted on the side wall of the middle rod (212), and two corresponding positioning grooves (216) are also provided in the internal sleeve (21). The two positioning strips (215) are slidably connected in the positioning grooves (216), respectively. Two external wires (217) are mounted on the external disk (214), and One end of the two external wires (217) passes through the external disk (214) and the middle block (25) and is electrically connected to the two conductive blocks (213); the other ends of the two external wires (217) are connected to an external power supply device; a plurality of the fixed blocks (22) are equidistantly arranged along the axis of the inner sleeve (21); a wire (218) is respectively installed on each of the fixed blocks (22); and the wire (218) is respectively electrically connected to the two conductive spring sheets (27); the plurality of wires (218) are respectively electrically connected to the two inner disks (219); the two inner disks (219) are respectively electrically connected to an internal wire (220); and the two internal wires (220) are respectively electrically connected to the battery (12); as well as The fixing mechanism comprises a stop ring (31) coaxially arranged with the inner sleeve (21), the stop ring (31) being provided with a plurality of insertion holes (32) at equal intervals, the stop ring (31) being mounted on the two conductive blocks (213), an insertion rod (33) being mounted on the follower plate (24), the insertion rod (33) being clamped in the insertion hole (32), the fixing mechanism further comprising two pull rods (34) connected to the follower plate (24), and the two pull rods (34) respectively passing through the fixing member (213). The fixed block (22) is provided with a top ball (35) on each of the two pull rods (34), and the two top balls (35) are fixedly arranged between each other. Two unlocking sleeves (36) are symmetrically and slidably installed on the inner sleeve (21), a plurality of limit springs (37) are installed between the two unlocking sleeves (36), and the unlocking sleeves (36) are provided with the same number of lateral grooves (38) as the fixed block (22), the top ball (35) is stuck on the side wall of the unlocking sleeve (36), and the pull rod (34) is slidably connected in the lateral groove (38).

2. The charging auxiliary device for soil detection equipment according to claim 1, characterized in that: A plurality of guide rods (221) are equidistantly arranged on one side of the intermediate block (25) close to the fixed block (22), a plurality of guide sleeves (222) are installed on one side of the fixed block (22) close to the intermediate block (25), and the plurality of guide rods (221) are slidably connected in the guide sleeves (222).

3. The charging auxiliary device for soil testing equipment according to claim 1, characterized in that: An electric push rod (41) is provided on the fixing frame (11), a detection rod (42) is installed on the protruding end of the electric push rod (41), the detection rod (42) is inserted into the soil, and the electric push rod (41) and the detection rod (42) are respectively electrically connected to the battery (12).

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