Soil acidity detection device
By designing a wire take-up mechanism and a locking mechanism, the automatic storage of the connecting wire and the detection needle is realized, which solves the problem that the connecting wire and the detection needle cannot be stored in the existing soil acidity detection device, ensuring the normal use of the device and preventing damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG YUQI TESTING CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-02
AI Technical Summary
The existing soil acidity testing device's connecting wires and testing needles cannot be stored, making them prone to damage and affecting the device's normal operation.
The design incorporates a winding mechanism and a locking mechanism. Through the cooperation of the winding drum and the spring, the connecting wire is automatically stored. The detection needle can be detached and placed into the storage slot, where it is secured with a magnetic strip.
This effectively prevents damage to the connecting wires and detection probes when not in use, ensuring the normal operation of the device.
Smart Images

Figure CN224317617U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of acidity detection devices, specifically relating to soil acidity detection devices. Background Technology
[0002] The soil acidity detection device is composed of a numerically indicating ammeter, a metal sensor, and a function value switching device. That is, the hardware system with the metal sensor as the core is used to drive the ammeter to display different pH and humidity values by using the magnitude of the current generated by the redox reaction in the chemical reaction when the metal sensor comes into contact with the soil.
[0003] However, current soil acidity testing devices have certain drawbacks. When in use, the connecting cable cannot be retracted and remains outside the machine. This inability to retract the cable makes it prone to damage, affecting the normal operation of the device. Additionally, in traditional soil acidity testing devices, the detection probe is fixedly connected to the detection adapter and cannot be disassembled or stored, which can easily injure personnel and is also prone to damage when not in use, affecting the normal operation of the device. Utility Model Content
[0004] (1) Technical problems to be solved
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a soil acidity detection device. This device aims to solve the technical problem that the connecting wires and detection needles of the existing soil acidity detection devices cannot be stored and are easily damaged, which affects the normal use of the device.
[0006] (2) Technical solution
[0007] To solve the above-mentioned technical problems, this utility model provides a soil acidity testing device, which includes a device body, a wire take-up mechanism fixedly installed at the rear end inside the device body, a connecting wire wound around the outside of the wire take-up mechanism, a locking mechanism installed at the rear end of the device body and outside the connecting wire, a detection adapter fixedly installed and connected at one end of the connecting wire outside the device body, a detection needle threadedly connected at the end of the detection adapter away from the connecting wire, and a storage groove adapted to the detection needle opened on the outside of the device body.
[0008] The winding mechanism includes a mounting frame fixedly installed inside the main body of the device. A winding drum is rotatably connected to the inner side of the mounting frame. The connecting wire is wound around the outside of the winding drum. A threading tube is installed inside the winding drum. The inside of the winding drum is rotatably connected to the mounting frame via a connecting shaft, and the threading tube is fixedly connected to the outside of the connecting shaft. A guide tube is rotatably connected to the left side of the mounting frame. A power box is fixedly installed on the right side of the mounting frame. A spring is installed inside the power box. One end of the spring is fixedly connected to the outside of the connecting shaft, and the other end of the spring is fixedly connected to the inside of the power box.
[0009] When using the device of this technical solution, during the use of the connecting cable, first pull one end located on the outside of the device body to drive the winding drum to rotate. At this time, the spring inside the power box tightens with the rotation of the connecting shaft and is fixed by the locking mechanism to prevent the connecting cable from automatically retracting, thus ensuring its normal use. When the connecting cable is not in use, it is released, and the spring drives the connecting shaft to rotate, thereby driving the winding drum to store the connecting cable, leaving only the part of the detection adapter exposed. Then, the detection needle is removed and placed into the storage slot for storage. When storing the detection needle, its outer side is snapped into the inner side of the positioning frame for easy fixation. The outer side of the storage slot is rotatably connected to a sealing cover. One end of the sealing cover is magnetically connected to the device body by a magnetic strip. After the detection needle is placed in, the sealing cover is closed and fixed by the magnetic strip.
[0010] Preferably, the front end of the mounting bracket is fixedly connected to a mounting edge, and mounting holes are provided at both the upper and lower ends of the mounting edge.
[0011] Furthermore, the connecting shaft is hollow inside, and the end of the connecting line located inside the main body of the device passes through the conduit, the connecting shaft, and the outlet tube in sequence. The end of the connecting line located inside the main body of the device is connected to the interior of the main body of the device.
[0012] Furthermore, protective rubber blocks are fixedly connected to both the front and rear ends of the upper and lower sides of the main body of the device, and a storage hook is fixedly connected to the front end of the main body of the device.
[0013] Furthermore, the locking mechanism includes a movable frame fixedly connected to the rear end of the device body. A first guide wheel frame is fixedly installed at the bottom inside the movable frame, and a second guide wheel frame is movably installed at the top inside the movable frame. Wire blocks are fixedly connected to the inner sides of both the first and second guide wheel frames. A locking stud is threadedly connected to the top of the movable frame. The bottom end of the locking stud is rotatably connected to the top of the second guide wheel frame. An operating knob is fixedly connected to the top of the locking stud, which is located at the top of the device body.
[0014] Furthermore, the storage slot is designed in a trapezoidal shape, and both the front and rear ends of the storage slot are fixedly connected with positioning frames that are compatible with the detection needle.
[0015] Furthermore, a rotatable cover is connected to the outside of the storage slot, and one end of the rotatable cover is magnetically connected to the main body of the device via a magnetic strip.
[0016] (3) Beneficial effects
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] This invention utilizes a coordinated design of a winding mechanism, a connecting wire, and a locking mechanism. During use, pulling one end of the connecting wire located on the outside of the device body rotates the winding drum. The spring inside the power box tightens as the connecting shaft rotates, and the locking mechanism secures the wire, preventing automatic retraction and ensuring normal operation. When the connecting wire is not in use, it is released, and the spring rotates the connecting shaft, causing the winding drum to retract the wire, exposing only the detection adapter portion. This prevents damage to the connecting wire when not in use and ensures the normal operation of the device body.
[0019] This invention features a design that integrates a detection adapter, a detection needle, and a storage slot. The detection needle can be detached from the adapter and then placed into the storage slot for safekeeping. When storing the needle, its outer side is secured by inserting it into the inner side of the positioning frame. A sealing cover is rotatably connected to the outer side of the storage slot. One end of the sealing cover is magnetically connected to the main body of the device via a magnetic strip. After the detection needle is placed in, the sealing cover is closed and secured by the magnetic strip, preventing damage or accidental injury to the detection needle when not in use and ensuring the normal operation of the main body of the device. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0022] Figure 3 This is a schematic diagram of the wire take-up mechanism and locking mechanism of this utility model;
[0023] Figure 4 for Figure 3 Enlarged view at point B in the middle;
[0024] Figure 5 This is a schematic diagram of the outlet tube structure of this utility model;
[0025] Figure 6 This is a schematic diagram of the internal structure of the power box of this utility model.
[0026] The markings in the attached diagram are as follows: 1. Main body of the device; 101. Protective rubber block; 102. Storage hook; 2. Reel-in mechanism; 201. Mounting frame; 202. Winding drum; 203. Cable guide tube; 204. Connecting shaft; 205. Outlet tube; 206. Power box; 207. Spring; 208. Mounting edge; 3. Connecting line; 4. Locking mechanism; 401. Movable frame; 402. First guide wheel frame; 403. Second guide wheel frame; 404. Wire block; 405. Locking stud; 406. Operating knob; 5. Detection adapter; 6. Detection needle; 7. Storage slot; 701. Positioning frame; 702. Sealing cover; 703. Magnetic strip. Detailed Implementation
[0027] This specific embodiment is a soil acidity detection device, the structural diagram of which is shown below. Figure 1-6 As shown, the device includes a main body 1. A wire take-up mechanism 2 is fixedly installed at the rear end inside the main body 1. A connecting wire 3 is wound around the outside of the wire take-up mechanism 2. A locking mechanism 4 is installed at the rear end of the main body 1 and outside the connecting wire 3. A detection adapter 5 is fixedly installed and connected to one end of the connecting wire 3 outside the main body 1. A detection needle 6 is threadedly connected to the end of the detection adapter 5 away from the connecting wire 3. A storage groove 7 adapted to the detection needle 6 is opened on the outside of the main body 1.
[0028] First, in this embodiment, the specific structure of the take-up mechanism 2 is as follows:
[0029] The take-up mechanism 2 includes a mounting frame 201 fixedly installed inside the main body 1. A winding drum 202 is rotatably connected to the inner side of the mounting frame 201. The connecting wire 3 is wound around the outside of the winding drum 202. A threading tube 203 is installed inside the winding drum 202. The inside of the winding drum 202 is rotatably connected to the mounting frame 201 via a connecting shaft 204, and the threading tube 203 is fixedly connected to the outside of the connecting shaft 204. A guide tube 205 is rotatably connected to the left side of the mounting frame 201. A power box 206 is fixedly installed on the right side of the mounting frame 201. A spring 207 is installed inside the power box 206. One end of the spring 207 is fixedly connected to the outside of the connecting shaft 204. The other end is fixedly connected to the inside of the power box 206. When the connecting wire 3 is in use, pulling one end located on the outside of the main body 1 will drive the winding drum 202 to rotate. At this time, the spring 207 inside the power box 206 will tighten as the connecting shaft 204 rotates. When the connecting wire 3 is not in use, it will be loosened. The spring 207 will drive the connecting shaft 204 to rotate, thereby driving the winding drum 202 to store the connecting wire 3, leaving only the part of the detection adapter 5 exposed. Then the detection needle 6 will be removed and placed in the storage slot 7 for storage, avoiding damage to the connecting wire 3 and the detection needle 6 when not in use, and preventing accidental injury to the detection needle 6, thus ensuring the normal use of the main body 1 of the device.
[0030] Furthermore, the front end of the mounting bracket 201 is fixedly connected to a mounting edge 208. Mounting holes are provided at both the upper and lower ends of the mounting edge 208. Mounting holes for screws to be screwed into the mounting edge 208 are provided to install and fix the mounting bracket 201.
[0031] Then, the connecting shaft 204 is hollow inside. One end of the connecting wire 3 inside the device body 1 passes through the threading tube 203, the connecting shaft 204 and the outlet tube 205 in sequence. The end of the connecting wire 3 inside the device body 1 is connected to the inside of the device body 1. One end of the connecting wire 3 can be stretched and wound up, while the other end passes through the threading tube 203, the connecting shaft 204 and the outlet tube 205 in sequence and is connected to the inside of the device body 1 to ensure normal use.
[0032] Furthermore, protective rubber blocks 101 are fixedly connected to both the front and rear ends of the upper and lower sides of the main body 1, and a storage hook 102 is fixedly connected to the front end of the main body 1. The storage hook 102 can be tied with a rope loop to make it convenient to use while preventing it from slipping out of the hand for protection. It is also convenient to hang and store it. The multiple sets of protective rubber blocks 101 can protect it when it falls.
[0033] Secondly, the locking mechanism 4 includes a movable frame 401 fixedly connected to the rear end of the device body 1. A first guide wheel frame 402 is fixedly installed at the bottom inside the movable frame 401, and a second guide wheel frame 403 is movably installed at the top inside the movable frame 401. Wire blocks 404 are fixedly connected to the inner sides of both the first guide wheel frame 402 and the second guide wheel frame 403. A locking stud 405 is threadedly connected to the top of the movable frame 401. The bottom end of the locking stud 405 is rotatably connected to the top end of the second guide wheel frame 403. The top end of the locking stud 405 is located at the top of the device body 1. The device is fixedly connected to an operating knob 406. When the connecting wire 3 is pulled out from the inside of the device body 1, the operating knob 406 is first turned to drive the locking stud 405 to rotate upward, so that the second guide wheel frame 403 rises and the two sets of wire blocks 404 are released, so that the connecting wire 3 can be easily pulled out in the grooves on the inner side of the two sets of wire blocks 404. After the connecting wire 3 is pulled out, the operating knob 406 is reversed to make the two sets of wire blocks 404 come close together to clamp and fix the outside of the connecting wire 3, thereby preventing the connecting wire 3 from automatically retracting and ensuring its normal use.
[0034] Finally, the storage slot 7 has a trapezoidal structure design. Both the front and rear ends of the storage slot 7 are fixedly connected to positioning frames 701 that are compatible with the detection needle 6. The storage slot 7 makes it easy for fingers to insert and remove the detection needle 6. When storing the detection needle 6, its outer side is inserted into the inner side of the positioning frame 701 for easy fixation. The outer side of the storage slot 7 is rotatably connected to a sealing cover 702. One end of the sealing cover 702 is magnetically connected to the main body 1 of the device through a magnetic strip 703. After the detection needle 6 is placed in, the sealing cover 702 is closed and fixed by the magnetic strip 703, thus facilitating the storage and protection of the detection needle 6.
[0035] When using the device of this technical solution, during the use of the connecting cable 3, pulling one end located on the outside of the device body 1 will drive the winding drum 202 to rotate. At this time, the spring 207 inside the power box 206 tightens with the rotation of the connecting shaft 204 and is fixed by the locking mechanism 4 to prevent the connecting cable 3 from automatically retracting, thus ensuring its normal use. When the connecting cable 3 is not in use, it is released, and the spring 207 drives the connecting shaft 204 to rotate, thereby driving the winding drum 202 to store the connecting cable 3, leaving only the part of the detection adapter 5 exposed. Then, the detection needle 6 is removed and placed into the storage slot 7 for storage. When storing the detection needle 6, its outer side is easily secured by inserting it into the inner side of the positioning frame 701. A sealing cover 702 is rotatably connected to the outer side of the storage slot 7. One end of the sealing cover 702 is magnetically connected to the main body 1 of the device via a magnetic strip 703. After placing the detection needle 6, the sealing cover 702 is closed and secured by the magnetic strip 703. The entire operation process is simple and convenient. This utility model, through its design, can store the connecting wire 3 and the detection needle 6, avoiding damage to the connecting wire 3 and the detection needle 6 when not in use, as well as the problem of accidental injury to the detection needle 6, thereby ensuring the normal use of the main body 1 of the device.
[0036] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A soil acidity testing device, comprising a main body (1); characterized in that, A wire take-up mechanism (2) is fixedly installed at the rear end inside the main body (1) of the device. A connecting wire (3) is wound around the outside of the wire take-up mechanism (2). A locking mechanism (4) is installed at the rear end of the main body (1) and outside the connecting wire (3). A detection adapter (5) is fixedly installed at one end of the connecting wire (3) outside the main body (1). A detection needle (6) is threadedly connected to the end of the detection adapter (5) away from the connecting wire (3). A storage slot (7) adapted to the detection needle (6) is opened on the outside of the main body (1). The take-up mechanism (2) includes a mounting frame (201) fixedly installed inside the main body (1) of the device. A winding drum (202) is rotatably connected to the inner side of the mounting frame (201). The connecting wire (3) is wound around the outside of the winding drum (202). A threading tube (203) is installed inside the winding drum (202). The inside of the winding drum (202) is rotatably connected to the mounting frame (201) through a connecting shaft (204). The mounting bracket (201) is fixedly connected to the outside of the connecting shaft (204). The left side of the mounting bracket (201) is rotatably connected to the outlet pipe (205). The right side of the mounting bracket (201) is fixedly installed with the power box (206). The power box (206) is installed with a spring (207). One end of the spring (207) is fixedly connected to the outside of the connecting shaft (204), and the other end of the spring (207) is fixedly connected to the inside of the power box (206).
2. The soil acidity detection device according to claim 1, characterized in that, The front end of the mounting bracket (201) is fixedly connected to a mounting edge (208), and mounting holes are provided at both the upper and lower ends of the mounting edge (208).
3. The soil acidity detection device according to claim 1, characterized in that, The connecting shaft (204) is hollow inside. One end of the connecting line (3) located inside the device body (1) passes through the conduit (203), the connecting shaft (204) and the outlet pipe (205) in sequence. One end of the connecting line (3) located inside the device body (1) is connected to the inside of the device body (1).
4. The soil acidity detection device according to claim 1, characterized in that, Protective rubber blocks (101) are fixedly connected to the front and rear ends of the upper and lower sides of the main body (1) of the device, and a storage hook (102) is fixedly connected to the front end of the main body (1).
5. The soil acidity detection device according to claim 1, characterized in that, The locking mechanism (4) includes a movable frame (401) fixedly connected to the rear end of the device body (1). A first guide wheel frame (402) is fixedly installed at the bottom inside the movable frame (401). A second guide wheel frame (403) is movably installed at the top inside the movable frame (401). A wire block (404) is fixedly connected to the inner side of both the first guide wheel frame (402) and the second guide wheel frame (403). A locking stud (405) is threadedly connected to the top of the movable frame (401). The bottom end of the locking stud (405) is rotatably connected to the top end of the second guide wheel frame (403). An operating knob (406) is fixedly connected to the top of the locking stud (405) and located at the top of the device body (1).
6. The soil acidity detection device according to claim 1, characterized in that, The storage slot (7) is designed in a trapezoidal shape, and the front and rear ends of the storage slot (7) are fixedly connected with positioning frames (701) that are compatible with the detection needle (6).
7. The soil acidity detection device according to claim 1, characterized in that, The outer side of the storage slot (7) is rotatably connected to a sealing cover (702), and one end of the sealing cover (702) is magnetically connected to the main body (1) of the device by a magnetic strip (703).