Electrician and electronic electricity measuring device

Abstract

The utility model relates to the technical field of electricity measuring equipment, in particular to an electrical and electronic electricity measuring device. Comprising an electricity measuring meter body and a test pencil. The storage back shell is installed on the back of the electricity measuring meter body, the take-up structure is arranged in the storage back shell, the take-up structure comprises a storage control rod slidably connected in the storage back shell, a storage fixing rod is fixedly installed at the bottom of the storage back shell, an elastic assembly is installed on the storage back shell, and a clamping groove is formed in the bottom of the storage back shell; a storage groove for storing the test pencil is formed in the storage back shell; the universal meter test pencil effectively solves the problem that when an existing universal meter test pencil is used, a wire is prone to winding and knotting, and use is inconvenient. The multifunctional test pencil is easy to use and store, the use efficiency is greatly improved, and the protection effect on the test pencil and a user is greatly improved at the same time.

Description

Technical Field

[0001] This utility model relates to the field of electrical measuring equipment technology, specifically to an electrical and electronic measuring device. Background Technology

[0002] In the field of electrical and electronic engineering, the multimeter is a core testing tool, and its matching test pen (probe) is a key component for measuring circuit parameters. A test pen typically includes an insulated body, a metal tip, signal wires, and a connector.

[0003] However, existing multimeter test pens are prone to wire tangling and knotting during actual use, resulting in bulky size when carried. For electricians who need to frequently carry tools, messy wires not only increase the difficulty of tool storage, but may also waste time in emergency repair scenarios by searching for wire ends and untangling wires, thus reducing work efficiency.

[0004] Secondly, the metal tip of existing test pens is exposed and lacks a protection mechanism after use. On the one hand, the sharp metal contacts are easily bent and deformed by external impacts during carrying or storage, affecting their use; on the other hand, the tip can easily puncture tool bags or scratch operators, creating a safety hazard. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, this utility model provides an electrical and electronic measuring device, which effectively solves the problem that the wires of the existing multimeter test pen are prone to tangling and knotting in actual use, resulting in bulky size and inconvenience when carrying and using it; at the same time, the metal tip of the existing test pen is exposed and lacks a protection mechanism after use. The sharp metal contact is easily bent and deformed by external impact during carrying or storage, which affects its use.

[0006] The technical solution provided by this utility model is an electrical and electronic measuring device, including a measuring meter body, which is used to measure voltage, current and resistance in a circuit;

[0007] A test pen, one end of which is connected to a wire, and the other end of the wire is connected to a plug for plugging into the test meter body;

[0008] A back cover is detachably mounted on the back of the meter body;

[0009] A wire-retracting structure is disposed inside the storage back shell. At least one wire-retracting structure is disposed inside the storage back shell. The wire-retracting structure includes a storage control rod that is longitudinally slidably connected inside the storage back shell. A storage fixing rod located below the storage control rod is fixedly installed at the bottom of the storage back shell. An elastic component for pulling the storage control rod to slide away from the storage fixing rod is installed on the storage back shell. The wire of the test pen is coiled between the storage control rod and the storage fixing rod. A slot for limiting the plug is opened at the bottom of the storage back shell. A storage slot for storing the test pen is opened on the storage back shell.

[0010] A one-way locking structure is provided to lock the wire of the test pen in one direction, preventing the test pen from being pulled into the storage slot under the action of the elastic component.

[0011] Preferably, the one-way locking structure includes a clamping block fixedly installed inside the storage slot;

[0012] The storage back cover has an unlocking slot on its side wall that communicates with the storage slot;

[0013] An unlocking slider is slidably connected inside the unlocking slot;

[0014] The storage slot is rotatably connected to a downwardly inclined wire pressing plate. A torsion spring is installed between the wire pressing plate and the storage slot. The torsion spring pushes the wire pressing plate to swing closer to the pressing block, thereby pressing the wire.

[0015] The unlocking slider and one end of the pressure plate are slidably connected.

[0016] Preferably, a rubber clamping sleeve is fixedly installed at one end of the pressure plate near the clamping block;

[0017] The rubber clamping sleeve is provided with multiple longitudinally arranged clamping strips.

[0018] Preferably, the elastic component uses a tension spring to provide tension, and one end of the tension spring is fixed to the bottom of the storage back cover;

[0019] The upper end of the storage back cover is rotatably connected to a guide wheel;

[0020] The other end of the tension spring is fixedly connected to one end of the pull rope, and the other end of the pull rope is fixedly connected to the storage control rod. The pull rope is wrapped around the outer edge of the guide wheel.

[0021] Preferably, both the storage control rod and the storage fixing rod are rotatably connected to a sliding wheel, and the outer edge of the sliding wheel is provided with a V-shaped rope groove;

[0022] The conductor is located inside the V-shaped rope groove.

[0023] Preferably, a pen holder is installed inside the storage slot, and a circular guide groove is provided at one end of the pen holder.

[0024] Preferably, a protective sleeve for protecting the test pen is slidably connected to the bottom of the test pen.

[0025] Preferably, a magnet is provided inside the protective sleeve, and an iron block that cooperates with the magnet is fixedly installed on the test pen.

[0026] Preferably, the bottom of the pen holder is provided with a sliding control groove, and a control ring that cooperates with the sliding control groove is fixedly connected to the protective sleeve.

[0027] Preferably, both the storage slot and the pen holder have a pen-taking slot.

[0028] The beneficial effects of this utility model are as follows:

[0029] This invention addresses the problem of existing multimeter test pens where the wires easily become tangled and knotted during actual use, resulting in bulky and inconvenient carrying. By adding a pressure block, unlocking slot, unlocking slider, wire clamping plate, and torsion spring, the invention controls the wires to be pulled out from inside the storage back cover. The wire clamping plate and pressure block restrict the wires from retracting them into the storage back cover under the action of the elastic component. Simultaneously, the elastic component tensions the wires inside the storage back cover. Furthermore, by adding a protective sleeve, magnet, and iron block, the invention solves the problem of the exposed metal tip of existing test pens lacking a protection mechanism after use. On the one hand, sharp metal contacts are easily bent and deformed by external impacts during carrying or storage, affecting their use; on the other hand, the pen tip can easily pierce tool bags or scratch operators, creating safety hazards. This utility model is easy to store, greatly improving usage efficiency, and at the same time greatly improving the protection of the test pen and the user. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0032] Figure 2 This is a schematic diagram of the internal structure of the storage back cover of this utility model;

[0033] Figure 3 This is a schematic diagram of the back of the storage back cover of this utility model;

[0034] Figure 4 This is a utility model Figure 3 Enlarged view of a portion of point A in the middle;

[0035] Figure 5 This is a schematic diagram of the installation position of the sliding wheel in this utility model;

[0036] Figure 6 This is a schematic diagram of the pressure plate of this utility model;

[0037] Figure 7 This is a schematic diagram of the sliding wheel of this utility model;

[0038] Figure 8 This is a schematic diagram showing the usage status of the test pen of this utility model;

[0039] Figure 9 This is a schematic diagram of the protective sleeve of this utility model;

[0040] Figure 10 This is a schematic diagram showing the combination of the test pen and the pen holder of this utility model;

[0041] Figure 11 This is a schematic diagram of a pen holder for this utility model.

[0042] In the diagram: 1. Meter body; 2. Test pen; 3. Wire; 4. Plug; 5. Storage back cover; 6. Storage control rod; 7. Storage fixing rod; 8. Slot; 9. Storage slot; 10. Clamping block; 11. Unlocking slot; 12. Unlocking slider; 13. Wire clamping plate; 14. Rubber clamping sleeve; 15. Clamping strip; 16. Tension spring; 17. Guide wheel; 18. Pull rope; 19. Sliding wheel; 20. V-shaped rope groove; 21. Pen holder; 22. Guide groove; 23. Protective cover; 24. Magnet; 25. Iron block; 26. Sliding control groove; 27. Control ring; 28. Pen retrieval slot. Detailed Implementation

[0043] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0044] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. This utility model can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0045] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this invention, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using other structures and / or functionalities besides one or more of the aspects set forth herein.

[0046] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0047] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0048] Refer to the instruction manual appendix Figure 1-11 An electrical and electronic measuring device includes a measuring meter body 1, which is used to measure voltage, current and resistance in a circuit;

[0049] Test pen 2, one end of test pen 2 is connected to wire 3, and the other end of wire 3 is connected to plug 4 for plugging into the test meter body 1; when in use, plug 4 is inserted into the interface on the test meter body 1, thereby fixing plug 4 to the test meter body 1.

[0050] Storage back cover 5, which is detachably installed on the back of the meter body 1;

[0051] In the actual installation process, the storage back cover 5 can be fixed to the back of the meter body 1 using bolts.

[0052] The cable winding structure is located inside the storage back cover 5. In this embodiment, there are two cable winding structures to store the two frequently used test pens inside the storage back cover 5.

[0053] The cable winding structure includes a storage control rod 6 that is longitudinally slidably connected inside the storage back cover 5. The storage back cover 5 has a longitudinal groove. One end of the storage control rod 6 is fixedly connected to a slider that is slidably connected to the groove, thereby controlling the storage control rod 6 to slide longitudinally in the storage back cover 5. A storage fixing rod 7 located below the storage control rod 6 is fixedly installed at the bottom of the storage back cover 5. An elastic component is installed on the storage back cover 5 for pulling the storage control rod 6 to slide away from the storage fixing rod 7.

[0054] The elastic component uses a tension spring 16 to provide tension, with one end of the tension spring 16 fixed to the bottom of the storage back cover 5;

[0055] The upper end of the storage back cover 5 is rotatably connected to a guide wheel 17;

[0056] The other end of the tension spring 16 is fixedly connected to one end of the pull rope 18, and the other end of the pull rope 18 is fixedly connected to the storage control rod 6. The pull rope 18 is wrapped around the outer edge of the guide wheel 17.

[0057] Initial state, reference Figure 2 Under the action of the tension spring 16, the pull rope 18 is pulled, and under the action of the guide wheel 17, the storage control rod 6 is pulled away from the storage fixing rod 7 to the limit position.

[0058] The wire 3 of the test pen 2 is coiled between the storage control rod 6 and the storage fixing rod 7, and the bottom of the storage back cover 5 is provided with a slot 8 for limiting the plug 4;

[0059] The back cover 5 has a storage slot 9 for storing the test pen 2;

[0060] Initially, plug 4 is located inside slot 8, and test pen 2 is inserted into storage slot 9. At this time, test pen 2 cannot move. When in use, plug 4 is pulled out from slot 8, and under the action of the wire, storage control lever 6 is pulled towards storage fixing lever 7 to reduce the distance between storage control lever 6 and storage fixing lever 7. Plug 4 is then inserted into the interface on the test meter body 1. Then, test pen 2 is removed from storage slot 9, and wire 3 is pulled out from storage back cover 5 through test pen 2. Then, under the action of wire 3, storage control lever 6 is pulled to its limit towards storage fixing lever 7. At the same time, tension spring 16 is pulled under the action of pull rope 18 until the length of stretched wire 3 is appropriate.

[0061] After use, pull the plug 4 out of the interface on the tester body 1. At this time, under the action of the tension spring 16, pull the storage control rod 6 to move away from the storage fixing rod 7, so that the plug 4 enters the slot 8 and the test pen 2 enters the storage slot 9.

[0062] The one-way locking structure is used to lock the wire 3 of the test pen 2 in one direction, preventing the test pen 2 from being pulled into the storage slot 9 under the action of the elastic component.

[0063] The one-way locking structure includes a clamping block 10 fixedly installed inside the storage slot 9;

[0064] The side wall of the storage back cover 5 has an unlocking slot 11 that communicates with the storage slot 9;

[0065] An unlocking slider 12 is slidably connected inside the unlocking slot 11;

[0066] The storage slot 9 is rotatably connected to a downwardly inclined pressure plate 13. A torsion spring is installed between the pressure plate 13 and the storage slot 9. In the initial state, the torsion spring pushes the pressure plate 13 to swing closer to the clamping block 10, thereby clamping the wire 3.

[0067] The unlocking slider 12 and the pressure plate 13 are slidably connected at one end. The pressure plate 13 has a waist-shaped groove at one end near the unlocking slider 12. The unlocking slider 12 is fixedly connected to a push shaft that is slidably connected to the waist-shaped groove, so that when the unlocking slider 12 slides inside the unlocking groove 11, it drives the pressure plate 13 to swing.

[0068] In use, remove the test pen 2 from the storage slot 9 and pull the wire 3 out from the storage back cover 5. When pulling the wire 3, the wire 3 pushes the wire clamping plate 13 to swing away from the clamping block 10, thereby allowing the wire 3 to be pulled out from the storage back cover 5. After the wire 3 is pulled out from the storage back cover 5 to a suitable length, the pull rope 18 is pulled under the action of the tension spring 16. Under the action of the guide wheel 17, the storage control rod 6 is pulled away from the storage fixing rod 7. At this time, the wire 3 moves towards the storage back cover. 5. When the wire is pulled internally, the pressure plate 13 is pushed towards the pressure block 10 under the action of the torsion spring, so that the pressure plate 13 presses the wire 3 between the pressure plate 13 and the pressure block 10. When the wire 3 is pulled into the storage back shell 5, the pressure plate 13 is driven to swing towards the pressure block 10 under the action of friction until the wire 3 is locked in the current position. At this time, the pressure plate 13 restricts the wire 3 to the current position, so that the wire 3 cannot be retracted into the storage back shell 5 under the action of the tension spring 16.

[0069] After use, push the unlocking slider 12 towards the storage back cover 5, causing the unlocking slider 12 to push the pressure plate 13 to swing. At this time, the end of the pressure plate 13 near the pressure block 10 swings away from the pressure block 10. Under the action of the extension spring 16, the wire 3 pulls the storage control rod 6 to slide away from the storage fixing rod 7, thereby retracting it into the storage back cover 5.

[0070] A rubber clamping sleeve 14 is fixedly installed at one end of the pressure plate 13 near the clamping block 10;

[0071] The rubber clamping sleeve 14 is provided with a plurality of longitudinally arranged clamping strips 15;

[0072] The friction of the wire clamping plate 13 is increased by setting the rubber clamping sleeve 14 and the clamping strip 15, while further protecting the wire 3.

[0073] Both the storage control rod 6 and the storage fixing rod 7 are rotatably connected to sliding wheels 19. By setting the sliding wheels 19, the friction between the wire 3 and the storage control rod 6 and the storage fixing rod 7 is reduced, and the storage control rod 6 and the storage fixing rod 7 are prevented from wearing the wire 3. The outer edge of the sliding wheel 19 is provided with a V-shaped rope groove 20.

[0074] The wire 3 is located inside the V-shaped rope groove 20. This arrangement helps to confine the wire 3 inside the V-shaped rope groove 20 and prevent the wire 3 from coming off the pulley 19.

[0075] The storage slot 9 is equipped with a pen holder 21. One end of the pen holder 21 has a circular guide groove 22. When in use, the test pen 2 is inserted into the guide groove 22 under the action of the wire 3 and the tension spring 16, thereby restricting the test pen 2 inside the guide groove 22.

[0076] The bottom of the test pen 2 is slidably connected to a protective sleeve 23 for protecting the test pen 2. Track plates are fixedly connected to both sides of the test pen 2. The protective sleeve 23 has a track groove that is slidably connected to the guide plate. This setting allows the protective sleeve 23 to slide on the test pen 2.

[0077] When in use, push the protective cover 23 so that it covers the tip of the test pen 2.

[0078] The protective sleeve 23 has a magnet 24 inside, and the test pen 2 has an iron block 25 that cooperates with the magnet 24.

[0079] When using the test pen 2, push the protective cover 23 away from the tip of the test pen 2 so that the magnet 24 and the iron block 25 overlap. The magnet 24 attracts the iron block 25, thus restricting the protective cover 23 to its current position, allowing the tip of the test pen 2 to protrude without affecting the use of the test pen 2.

[0080] The bottom of the pen holder 21 is provided with a sliding control groove 26, and a control ring 27 that cooperates with the sliding control groove 26 is fixedly connected to the protective cover 23.

[0081] When in use, after the test is completed, push the unlocking slider 12 towards the storage back cover 5. Under the action of the tension spring 16, the wire 3 is pulled back into the storage back cover 5. At this time, the end of the test pen 2 away from the tip enters the guide groove 22. At this time, the control ring 27 is locked at the end of the sliding control groove 26. Then, under the action of the tension spring 16, push the protective cover 23 towards the tip of the test pen 2, so that the protective cover 23 covers the tip of the test pen 2 to prevent the tip from being damaged or puncturing the tool bag and scratching the operator.

[0082] Both the storage slot 9 and the pen holder 21 have pen retrieval slots 28, which facilitates the retrieval of the test pen 2.

[0083] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An electrical and electronic measuring device, characterized in that, include: A voltage meter body, which is used to measure voltage, current and resistance in a circuit; A test pen, one end of which is connected to a wire, and the other end of the wire is connected to a plug for plugging into the test meter body; A back cover is detachably mounted on the back of the meter body; A wire-retracting structure is disposed inside the storage back shell. At least one wire-retracting structure is disposed inside the storage back shell. The wire-retracting structure includes a storage control rod that is longitudinally slidably connected inside the storage back shell. A storage fixing rod located below the storage control rod is fixedly installed at the bottom of the storage back shell. An elastic component for pulling the storage control rod to slide away from the storage fixing rod is installed on the storage back shell. The wire of the test pen is coiled between the storage control rod and the storage fixing rod. A slot for limiting the plug is opened at the bottom of the storage back shell. A storage slot for storing the test pen is opened on the storage back shell. A one-way locking structure is provided to lock the wire of the test pen in one direction, preventing the test pen from being pulled into the storage slot under the action of the elastic component.

2. The electrical and electronic measuring device according to claim 1, characterized in that: The one-way locking structure includes a clamping block fixedly installed inside the storage slot; The storage back cover has an unlocking slot on its side wall that communicates with the storage slot; An unlocking slider is slidably connected inside the unlocking slot; The storage slot is rotatably connected to a downwardly inclined wire pressing plate. A torsion spring is installed between the wire pressing plate and the storage slot. The torsion spring pushes the wire pressing plate to swing closer to the pressing block, thereby pressing the wire. The unlocking slider and one end of the pressure plate are slidably connected.

3. The electrical and electronic measuring device according to claim 2, characterized in that: A rubber clamping sleeve is fixedly installed at one end of the pressure plate near the clamping block; The rubber clamping sleeve is provided with multiple longitudinally arranged clamping strips.

4. The electrical and electronic measuring device according to claim 1, characterized in that: The elastic component uses a tension spring to provide tension, and one end of the tension spring is fixed to the bottom of the storage back shell; The upper end of the storage back cover is rotatably connected to a guide wheel; The other end of the tension spring is fixedly connected to one end of the pull rope, and the other end of the pull rope is fixedly connected to the storage control rod. The pull rope is wrapped around the outer edge of the guide wheel.

5. An electrical and electronic measuring device according to claim 1, characterized in that: Both the storage control rod and the storage fixing rod are rotatably connected to sliding wheels, and the outer edge of the sliding wheels is provided with a V-shaped rope groove. The conductor is located inside the V-shaped rope groove.

6. An electrical and electronic measuring device according to claim 1, characterized in that: The storage slot contains a pen holder, and one end of the pen holder has a circular guide groove.

7. An electrical and electronic measuring device according to claim 6, characterized in that: The bottom of the test pen is slidably connected to a protective sleeve for protecting the test pen.

8. An electrical and electronic measuring device according to claim 7, characterized in that: The protective sleeve contains a magnet, and the test pen has an iron block that cooperates with the magnet.

9. An electrical and electronic measuring device according to claim 8, characterized in that: The pen holder has a sliding control groove at the bottom, and a control ring that cooperates with the sliding control groove is fixedly connected to the protective cover.

10. An electrical and electronic measuring device according to claim 6, characterized in that: Both the storage slot and the pen holder have a pen-taking slot.

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