Fixing mechanism and measuring pen
By designing a fixing mechanism including threaded cover assembly, fixing assembly, pen needle and pen cap, the problem of inconvenience in installation and storage difficulties of megohmmeter measuring pen needle is solved, and simpler installation and more convenient storage are achieved.
Patent Information
- Application Number
- CN202420809639.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-18
AI Technical Summary
The existing megohmmeters measure every pen needle is small and difficult to operate, difficult to install, and it is inconvenient to carry multiple pen needles with you, which is easy to lose or rust.
A fixing mechanism is designed, including a threaded cover assembly, a fixing assembly, a pen needle and a pen cap. The fixing assembly consists of a fixing base, contact rod, connecting rod, slider and spring. The slider moves to the limit slot of the pen needle, making the pen needle stuck, making the installation easier and more convenient.
The slider moves the pen needle to the snail, which solves the problem of inconvenient installation of the pen needle, and properly stores a variety of pen needles through the storage groove of the pen shell unit, improving the convenience of carrying and storage.
Smart Images
Figure CN222506382U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of insulation megger devices, in particular to a fixing mechanism and a measuring pen. Background Art
[0002] The megohmmeter, which is widely used in the market, is a common measuring instrument for electricians. It usually uses a hand-cranked generator as a power source, so it is also called a megohmmeter, and its scale is in megohms (MΩ). It is mainly used to detect the insulation resistance between electrical equipment, household appliances or electrical lines and the ground or between phases to ensure that these equipment, appliances and lines work properly and avoid accidents such as electric shock injuries and equipment damage.
[0003] However, most of the existing megohmmeters use pen needles. When testing different types of equipment, different types of pen needles need to be replaced and screwed onto the measuring pen. This installation method has some problems, such as the pen needle is small and difficult to operate, and may cause installation difficulties and poor contact due to thread corrosion or dirt. In addition, carrying multiple pen needles for replacement is not only cumbersome, but also detrimental to work efficiency. In addition, there are a series of problems with the storage of pen needles, such as easy loss, corrosion, and excessive dirt.
[0004] Therefore, it is very important to design a measuring pen that can solve the above problems, so as to solve the inconvenience of pen needle installation, the need to carry multiple pen needles for replacement and effective storage. Utility Model Content
[0005] In view of the above or existing problems in the prior art that the pen needle is small and difficult to install in place and has poor contact, the present utility model is proposed.
[0006] Therefore, an object of the present invention is to provide a fixing mechanism.
[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a fixing unit, comprising a threaded cover assembly, a fixing assembly arranged on the surface of the threaded cover assembly, a pen needle installed on the threaded cover assembly, and a pen cap arranged on one side of the fixing assembly;
[0008] The fixing assembly comprises a fixing base, a contact rod installed in the fixing base, a connecting rod movably connected to the contact rod, a sliding block movably connected to the connecting rod, and a spring arranged at the bottom of the contact rod.
[0009] As a preferred solution of the fixing mechanism of the utility model, wherein: the threaded cover assembly includes an insulating cover, a conductor installed in the insulating cover with an interference fit, and a through hole opened on the insulating cover;
[0010] There are two through holes symmetrically provided, the conductor needs to have good conductivity and its material is preferably pure copper, and the insulation cover is made of insulating material, preferably ABS plastic.
[0011] As a preferred solution of the fixing mechanism of the utility model, wherein: the fixing assembly includes a fixing base arranged on the outer surface of the insulating cover, a contact rod installed in the fixing base, a connecting rod movably connected to the contact rod, a sliding block movably connected to the connecting rod, and a spring arranged at the bottom of the contact rod;
[0012] The bottom edge of the slider is chamfered, the fixed base is slidably connected to the contact rod, and the fixed base is slidably connected to the slider, and the material thereof is insulating material, preferably ABS plastic.
[0013] As a preferred solution of the fixing mechanism of the utility model, wherein: the fixing assembly is symmetrically provided with another group, the fixing base is also provided with a connecting hole which is equal to and connected with the through hole, and the spring is installed in the through hole.
[0014] As a preferred solution of the fixing mechanism of the utility model, wherein: the pen needle comprises a needle body arranged at one end of the conductor, a limiting boss arranged on the outer surface of the needle body, and a limiting groove opened on the surface of the needle body;
[0015] The limiting boss is chamfered, and the pen needle needs to have high strength, wear resistance and conductivity, and copper alloy is preferably used as the material.
[0016] As a preferred solution of the fixing mechanism of the utility model, the pen cap comprises a cap body arranged on the outer surface of the needle body, a baffle arranged in the cap body, a track arranged in the cap body, a limiting protrusion arranged on the surface of the track, and a pen hole arranged at the top of the cap body;
[0017] Wherein, two of the track and the limiting protrusion are arranged in a circumferential array in the cap body, and the pen cap is made of insulating material, preferably ABS plastic.
[0018] As a preferred solution of the fixing mechanism of the utility model, when the pen cap is pressed down, the contact rod is pushed to move, so that the slider tightens the pen needle.
[0019] The fixing mechanism of the utility model has the beneficial effect that the pen needle is stuck by the slider when the slider moves to the limiting groove of the pen needle, so that the installation is simpler and more convenient.
[0020] In actual use, there is still the problem that the pen needle needs to be carried around and is inconvenient to store.
[0021] Therefore, another object of the utility model is to provide a measuring pen.
[0022] In order to solve the above technical problems, the utility model also provides the following technical solutions: a measuring pen includes a pen housing unit, which includes a pen body arranged outside the threaded cover assembly, a threaded base arranged at one end of the pen body, a receiving groove arranged in the pen body, a boss arranged on the outer surface of the threaded base, and a conductive core arranged inside the pen body;
[0023] Wherein, the conductive core material is preferably pure copper.
[0024] As a preferred solution of the measuring pen of the utility model, wherein: the receiving grooves are arranged in a circular array with eight, and the pen needle can be received in the receiving grooves.
[0025] As a preferred solution of the measuring pen of the utility model, the threaded base cooperates with the threaded cover assembly, and two bosses fixedly connected to the outer surface of the threaded base are symmetrically arranged.
[0026] The boss can move in the track, and when it moves to the limiting boss, it can move to the rear side of the limiting boss through deformation, thereby playing the role of fixing the pen cap.
[0027] The measuring pen of the utility model has the beneficial effect that a plurality of pen needles of different models can be properly stored in the groove, so that the measuring pen can be carried around and properly stored. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:
[0029] Figure 1 It is an overall schematic diagram of the utility model.
[0030] Figure 2 It is an exploded view of the utility model.
[0031] Figure 3 It is a cross-sectional view of the assembly of the fixing component and the pen needle of the utility model.
[0032] Figure 4 It is a cross-sectional view of a pen cap of the utility model.
[0033] Figure 5 It is a schematic diagram of the installation of the pen cap of the utility model.
[0034] Figure 6 It is an overall schematic diagram of the pen housing unit of the utility model. DETAILED DESCRIPTION
[0035] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.
[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.
[0038] Example 1
[0039] Reference Figures 1 to 3 , which is the first embodiment of the utility model, and provides a fixing unit 100, including a threaded cover assembly 101, a fixing assembly 102 arranged on the surface of the threaded cover assembly 101, a pen needle 103 installed on the threaded cover assembly 101, and a pen cap 104 arranged on one side of the fixing assembly 102;
[0040] The fixing assembly 102 includes a fixing base 102a, a contact rod 102b installed in the fixing base 102a, a connecting rod 102c hinged and movable at one end of the contact rod 102b, a sliding block 102d hinged and movable at one end of the connecting rod 102c, and a spring 102e arranged at the bottom of the contact rod 102b.
[0041] The fixing assembly 102 is symmetrically provided with another identical group.
[0042] Specifically, the threaded cover assembly 101 includes an insulating cover 101a, a conductor 101b installed in the insulating cover 101a with interference fit, and a through hole 101c opened on the insulating cover 101a;
[0043] There are two symmetrical through holes 101c.
[0044] Furthermore, the fixing assembly 102 includes a fixing base 102a disposed on the outer surface of the insulating cover 101a, a contact rod 102b installed in the fixing base 102a, a connecting rod 102c movably connected to the contact rod 102b, a sliding block 102d movably connected to the connecting rod 102c, and a spring 102e disposed at the bottom of the contact rod 102b;
[0045] The fixed base 102a is slidably connected to the contact rod 102b, and the fixed base 102a is slidably connected to the slider 102d.
[0046] Preferably, the fixed base 102a is further provided with a connecting hole which is equal to and connected with the through hole 101c, and the spring 102e is installed in the through hole 101c.
[0047] When the contact rod 102b is pressed down, the spring 102e is compressed, and when the contact rod 102b is not pressed down, the spring 102e can reset the contact rod 102b.
[0048] Furthermore, the pen needle 103 includes a needle body 103a disposed at one end of the conductor 101b, a limiting boss 103b disposed on the outer surface of the needle body 103a, and a limiting groove 103c opened on the surface of the needle body 103a.
[0049] It should be noted that, because the slider 102d is chamfered, the limiting boss 103b on the stylus 103 is also chamfered. When the needle body 103a is not installed in place, the chamfering allows the slider to enter the limiting groove, thereby better fastening the stylus.
[0050] In summary, when in use, the pen needle 103 is inserted into the conductor 101b, and then the contact rod 102b is pressed down to move the connecting rod 102c downward, and the slider 102d at the other end of the connecting rod 102c is pushed and embedded into the limiting groove 103c. Because the fixed base 102a can limit the slider 102d, the needle body 103a is fastened to the conductor 101b. When the contact rod 102b is not pressed down, the needle body 103a fastened to the conductor 101b by the slider 102d can be removed.
[0051] Example 2
[0052] Reference Figures 4-5 , which is the second embodiment of the utility model. Different from the previous embodiment, this embodiment provides a pen cap 104, which solves the problem that two sets of fixing components cannot fix the needle body at the same time and are exposed to the outside. It includes a cap body 104a arranged on the outer surface of the needle body 103a, a baffle 104b arranged in the cap body 104a, a track 104c opened inside the cap body 104a, a limiting protrusion 104d arranged on the surface of the track 104c, and a pen hole 104e opened at the top of the cap body 104a;
[0053] There are two groups of rails 104c and limiting protrusions 104d arranged in an array on the inner circumference of the cap body 104a.
[0054] Furthermore, when the pen cap 104 is pressed down, the built-in baffle 104b will push the contact rod 102b to move, so that the slider 102d moves and is embedded in the limiting groove 103c.
[0055] In summary, when in use, insert the needle body 103a into the conductor 101b, then pass the pen cap 104 through the needle body 103a through the pen hole 104e and install it in place, then press the pen cap 104 downward to make the baffle 104b touch the two contact rods 102b, so that the two sliders 102d are moved and embedded in the limiting groove 103c, and the needle body 103a is fastened to the conductor 101b and installed in the pen cap 104. The pen cap 104 plays the role of linking the two groups of fixing components 102 at the same time, and can also effectively protect the fixing components 102.
[0056] Example 3
[0057] Reference Figures 1 to 6 , which is the third embodiment of the utility model. Different from the previous embodiment, this embodiment provides a pen housing unit 200, which includes a pen body 201 arranged outside the threaded cover assembly 101, a threaded base 202 opened at one end of the pen body 201, a storage groove 203 opened in the pen body 201, a boss 204 arranged on the outer surface of the threaded base 202, and a conductive core 205 arranged inside the pen body 201.
[0058] The boss 204 can slide freely in the track 104c.
[0059] Specifically, eight receiving grooves 203 are arranged in a circular array, and various types of styluses 103 can be received in the receiving grooves 203 , thereby protecting the stylus 103 and reducing the problems of rust and loss.
[0060] Furthermore, the threaded base 202 is threadedly matched with the threaded cover assembly 101 , and two bosses 204 fixedly connected to the outer surface of the threaded base 202 are symmetrically arranged.
[0061] In summary, when in use, various types of pen needles 103 are placed in the storage groove 203, and then the threaded cover assembly 101 is screwed into the threaded base 202. After the pen needles 103 are stored, the track 104c of the pen cap 104 is aligned with the boss 204, and the pen cap 104 is pressed down and rotated to the limiting protrusion 103b, so that the boss 204 moves to the limiting protrusion 104d through deformation, thereby fixing the pen cap 104.
[0062] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values (e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.
[0063] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.
[0064] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.
[0065] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A fixing mechanism, characterized in that: include, A fixing unit (100) comprises a threaded cover assembly (101), a fixing assembly (102) arranged on the surface of the threaded cover assembly (101), a pen needle (103) mounted on the threaded cover assembly (101), and a pen cap (104) arranged on one side of the fixing assembly (102); The fixing assembly (102) includes a fixing base (102a), a contact rod (102b) installed in the fixing base (102a), a connecting rod (102c) movably connected to the contact rod (102b), a sliding block (102d) movably connected to the connecting rod (102c), and a spring (102e) arranged at the bottom of the contact rod (102b).
2. The fixing mechanism according to claim 1, characterized in that: The threaded cover assembly (101) comprises an insulating cover (101a), a conductor (101b) installed inside the insulating cover (101a) for interference fit, and a through hole (101c) provided on the insulating cover (101a); Wherein, two through holes (101c) are symmetrically provided.
3. The fixing mechanism according to claim 2, characterized in that: The fixing assembly (102) comprises a fixing base (102a) arranged on the outer surface of the insulating cover (101a), a contact rod (102b) installed in the fixing base (102a), a connecting rod (102c) movably connected to the contact rod (102b), a sliding block (102d) movably connected to the connecting rod (102c), and a spring (102e) arranged at the bottom of the contact rod (102b); The fixing assembly (102) is symmetrically provided with another group, the fixing base (102a) is slidably connected to the contact rod (102b), and the fixing base (102a) is slidably connected to the slider (102d).
4. The fixing mechanism according to claim 2 or 3, characterized in that: The fixed base (102a) is also provided with a connecting hole which is equal to and connected to the through hole (101c), and the spring (102e) is installed in the through hole (101c).
5. The fixing mechanism according to claim 4, characterized in that: The pen needle (103) comprises a needle body (103a) arranged at one end of the conductor (101b), a limiting boss (103b) arranged on the outer surface of the needle body (103a), and a limiting groove (103c) opened on the surface of the needle body (103a).
6. The fixing mechanism according to claim 5, characterized in that: The pen cap (104) comprises a cap body (104a) arranged on the outer surface of the needle body (103a), a baffle (104b) arranged inside the cap body (104a), a track (104c) opened inside the cap body (104a), a limiting protrusion (104d) arranged on the surface of the track (104c), and a pen hole (104e) opened at the top of the cap body (104a); Wherein, two of the tracks (104c) and the limiting protrusions (104d) are arranged in a circular array inside the cap body (104a).
7. The fixing mechanism according to claim 3 or 6, characterized in that: When the pen cap (104) is pressed down, the contact rod (102b) is pushed to move, so that the slider (102d) tightens the pen needle (103).
8. A measuring pen, characterized in that: comprising the fixing mechanism according to any one of claims 1 to 7, and The pen housing unit (200) comprises a pen body (201) arranged outside the threaded cover assembly (101), a threaded base (202) provided at one end of the pen body (201), a receiving groove (203) provided in the pen body (201), a boss (204) provided on the outer surface of the threaded base (202), and a conductive core (205) provided inside the pen body (201).
9. The measuring pen according to claim 8, characterized in that: The receiving grooves (203) are eight in a circular array, and the pen needles (103) can be received in the receiving grooves (203).
10. The measuring pen according to claim 9, characterized in that: The threaded base (202) cooperates with the threaded cover assembly (101), and two bosses (204) fixedly connected to the outer surface of the threaded base (202) are symmetrically arranged.