Adjusting mechanism and meter test pin fixing device

Abstract

The utility model discloses an adjusting mechanism and a meter test pin fixing device, which relates to the technical field of meter test pins, and comprises a positioning unit which comprises a support frame, two groups of slide blocks arranged on the inner side of the support frame, an elastic piece arranged on one side of the support frame, and a connecting piece arranged between the two groups of slide blocks, the limiting pin is arranged on the inner side of the end part of the connecting piece; the sleeve rod unit comprises a hollow sleeve rod and a connecting rod arranged on the inner side of the hollow sleeve rod. The beneficial effects of the utility model are that when the device is used for measurement, two test pins can be used for measurement by a single hand at the same time, other wiring terminals can be prevented from being touched by mistake in the test process, the working efficiency and safety are improved, the relative distance between the two test pins can be flexibly adjusted according to the actual situation on site, and the measurement accuracy is improved. The applicability is higher, and the working efficiency of workers is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of meter test needles, in particular to an adjustment mechanism and a meter test needle fixing device. Background Art

[0002] A meter test needle is a tool used to measure the position of an instrument pointer, and its function is similar to that of a measuring needle. When selecting a meter test needle, you should consider actual needs and ensure that its measuring range and accuracy meet the requirements. Before use, you need to check the condition of the test needle to ensure that it is clean and dry, and make necessary zero adjustments. During the measurement process, the test needle should be protected from external forces to ensure the accuracy of its measurements. When reading the measurement results, you need to ensure accuracy and regularly inspect and maintain the test needle. Like the measuring needle, the meter test needle also needs to be kept clean and dry to ensure its measurement accuracy.

[0003] When we use a meter to measure some electrical quantities, we generally use two positive and negative test needles. This requires holding the meter in one hand and using two separate test needles with the other hand to perform measurements, or placing the meter somewhere and using two test needles with both hands to perform measurements. This will lead to inconvenient operation, increased work difficulty, large measurement errors, and the risk of accidental electric shock. Utility Model Content

[0004] In view of the above-mentioned prior art problems, the present utility model is proposed.

[0005] The utility model aims to provide an adjustment mechanism, which aims to solve the problem that the existing meter test needle needs two hands to operate during use, resulting in inconvenient operation, increased work difficulty, large measurement errors and the risk of accidental electric shock.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an adjustment mechanism, comprising: a positioning unit, including a support frame, two groups of sliders arranged inside the support frame, an elastic member arranged on one side of the support frame, a connecting member arranged between the two groups of sliders, and a limiting pin arranged inside the end of the connecting member;

[0007] The sleeve rod unit comprises a hollow sleeve rod and a connecting rod arranged inside the hollow sleeve rod;

[0008] The support frame is located on the outer surface of the hollow sleeve rod and is fixed thereto; the elastic member is located on the outer surface of the hollow sleeve rod and is fixed thereto.

[0009] As a preferred solution of the adjustment mechanism of the utility model, wherein: the support frame includes a slide groove opened on the side wall, and a return spring arranged on the inner side of the support frame;

[0010] The slider includes a rotating shaft disposed at an end thereof;

[0011] The cross section of the support frame is a "concave"-shaped structure; the sliding block is adapted to the sliding groove; and the sliding block slides inside the sliding groove.

[0012] As a preferred solution of the adjustment mechanism of the utility model, wherein: the elastic member includes a limit rod and a toggle rod arranged on the outer wall of the limit rod;

[0013] The limiting rod comprises a first detour portion arranged on one side of the bottom thereof, and a second detour portion arranged on one side of the top of the limiting rod.

[0014] As a preferred solution of the adjustment mechanism of the utility model, wherein: the limit rod is bent along the bending direction of the first circuitous portion;

[0015] The limiting rod is a "Z"-shaped structure.

[0016] As a preferred solution of the adjustment mechanism of the utility model, wherein: the connecting member includes a fixing plate, and a pressing rod arranged on the outer wall of the fixing plate;

[0017] The fixing plate includes an axial hole passing through one end thereof, and a groove opened at the other end of the fixing plate;

[0018] The rotating shaft passes through the shaft hole and extends into the interior thereof; the rotating shaft rotates inside the shaft hole.

[0019] As a preferred solution of the adjustment mechanism of the utility model, wherein: the fixing plate and the pressing rod are integrally formed;

[0020] The pressing rod is a semicircular structure;

[0021] The pressing rod cooperates with the limiting rod;

[0022] An end portion of the pressing rod is in contact with the second detour portion.

[0023] As a preferred solution of the adjustment mechanism of the utility model, wherein: the limit pin includes a connecting plate arranged at the end thereof;

[0024] The connecting plate is located inside the groove; the connecting plate rotates inside the groove.

[0025] As a preferred solution of the adjustment mechanism of the utility model, wherein: the hollow sleeve includes a notch opened on its side wall;

[0026] The connecting rod includes a slot formed on its surface;

[0027] The hollow sleeve rod is matched with the connecting rod;

[0028] The limiting pin passes through the notch and extends to the inner side of the hollow sleeve rod;

[0029] The limiting pin is matched with the clamping slot.

[0030] The beneficial effects of the adjustment mechanism of the utility model are: when using the device for measurement, two test needles can be used for measurement at the same time with one hand, and accidental touching of other wiring terminals during the test can be avoided, thereby improving work efficiency and safety. At the same time, the relative distance between the two test needles can be flexibly adjusted according to the actual situation on site, which has higher applicability and improves the work efficiency of the staff to a certain extent.

[0031] Another object of the utility model is to provide a meter test needle fixing device, which aims to solve the problem that the existing meter test needle is inconvenient to fix during use.

[0032] In order to solve the above technical problems, the utility model also provides the following technical solutions: a meter test needle fixing device, which includes an adjustment mechanism; and a clamping unit, including a first clamping member, a second clamping member arranged at the end of the first clamping member, and a torsion spring arranged on the inner side of one end of the first clamping member;

[0033] The hollow sleeve rod and a section of the connecting rod are both connected to the first clamping member.

[0034] As a preferred solution of the meter test needle fixing device of the utility model, wherein: the second clamping member includes a handle arranged on its side wall;

[0035] The handle is a curved plate-like structure;

[0036] One end of the first clamping member and the second clamping member are hinged and rotated;

[0037] The first clamping member and the second clamping member are brought closer to each other through the torsion spring.

[0038] The beneficial effects of the meter test needle fixing device of the utility model are: two test needles can be fixed, and the two groups of clamping parts are connected by springs, so that the device can be used to clamp test needles of different diameters. The device has high applicability, and the device has a simple structure and operation and is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 It is a structural schematic diagram of the utility model.

[0041] Figure 2 It is a partial cross-sectional view of the present invention.

[0042] Figure 3 For the utility model Figure 2 A is a partial enlarged view of the

[0043] Figure 4 It is a schematic diagram of the connection structure between the positioning unit and the sleeve rod unit in the utility model.

[0044] Figure 5 It is a schematic diagram of the explosion structure in the utility model. DETAILED DESCRIPTION

[0045] 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.

[0046] 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.

[0047] 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 is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0048] Example 1

[0049] Reference Figure 1 to Figure 5 , which is the first embodiment of the utility model, and this embodiment provides an adjustment mechanism, including a positioning unit 100, including a support frame 101, two groups of sliders 102 arranged on the inner side of the support frame 101, an elastic member 103 arranged on one side of the support frame 101, a connecting member 104 arranged between the two groups of sliders 102, and a limiting pin 105 arranged on the inner side of the end of the connecting member 104.

[0050] Furthermore, the support frame 101 is provided to support the slider 102, so that the slider 102 can slide inside the support frame 101; the slider 102 is provided to cooperate with the connecting piece 104, so that the end of the connecting piece 104 can rotate in the opposite direction along the axis of the slider 102, and the connecting piece 104 can move along the vertical direction of the support frame 101; the connecting piece 104 and the end of the limit pin 105 are hinged and rotated, so that the connecting piece 104 drives the limit pin 105 to move in the horizontal direction during the movement of the connecting piece 104 in the vertical direction; the outer side of the end of the connecting piece 104 cooperates with the elastic piece 103, and the elastic deformation of the elastic piece 103 can better fix the connecting piece 104.

[0051] Furthermore, the sleeve rod unit 200 includes a hollow sleeve rod 201 and a connecting rod 202 arranged inside the hollow sleeve rod 201; the support frame 101 is located and fixed on the outer surface of the hollow sleeve rod 201; and the elastic member 103 is located and fixed on the outer surface of the hollow sleeve rod 201.

[0052] Preferably, the hollow sleeve rod 201 cooperates with the connecting rod 202 , and the hollow sleeve rod 201 and the connecting rod 202 are slidably connected; the support frame 101 and the hollow sleeve rod 201 are welded and fixed; and the elastic member 103 is arranged at one side of the support frame 101 .

[0053] When in use, when it is necessary to adjust the telescopic length between the hollow sleeve rod 201 and the connecting rod 202, the connecting piece 104 is pushed to make the connecting piece 104 flip along the axial direction of the slider 102. As the connecting piece 104 flips, the connecting piece 104 compresses the return spring 101b; as the connecting piece 104 rotates, the connecting piece 104 drives the limit pin 105 to leave the inside of the hollow sleeve rod 201, and then the connecting piece 104 is clamped with the elastic member 103, and then the limit pin 105 no longer limits the position of the hollow sleeve rod 201; then the distance between the hollow sleeve rod 201 and the connecting rod 202 is adjusted to After the length is appropriate, the elastic member 103 is pushed to one side so that the elastic member 103 is away from the end of the connecting member 104. Then, when the connecting member 104 is no longer squeezed, the reset spring 101b is used to push the connecting member 104 to move. The movement of the connecting member 104 drives the slider 102 to slide inside the support frame 101. While the connecting member 104 moves, it flips along the axial direction of the slider 102. While the connecting member 104 flips, it pushes the limit pin 105 to move, so that the limit pin 105 passes through the hollow sleeve rod 201 and is inserted into the inside of the connecting rod 202, so that the position between the hollow sleeve rod 201 and the connecting rod 202 is fixed.

[0054] In summary, the positioning unit 100 can flexibly adjust the telescopic length between the hollow sleeve rod 201 and the connecting rod 202, so as to flexibly adjust the distance between the two groups of clamps, so as to better facilitate the use of the staff.

[0055] Example 2

[0056] Reference Figures 1 to 5 , which is the second embodiment of the utility model, includes: the support frame 101 includes a slide groove 101a opened on the side wall, and a return spring 101b arranged on the inner side of the support frame 101; the slider 102 includes a rotating shaft 102a arranged at its end; the cross section of the support frame 101 is a "concave" shape structure; the slider 102 is adapted to the slide groove 101a; the slider 102 slides inside the slide groove 101a.

[0057] Furthermore, the slider 102 cooperates with the slide groove 101a, and the slider 102 slides inside the slide groove 101a; the slider 102 moves along the vertical direction inside the slide groove 101a; and the support frame 101 is provided to support the slider 102.

[0058] Furthermore, the elastic member 103 includes a limiting rod 103a, and a toggle rod 103b arranged on the outer wall of the limiting rod 103a; the limiting rod 103a includes a first detour portion 103a-1 arranged on one side of its bottom, and a second detour portion 103a-2 arranged on one side of the top of the limiting rod 103a; the limiting rod 103a is bent along the bending direction of the first detour portion 103a-1; the limiting rod 103a is a "Z" shaped structure.

[0059] Preferably, the limiting rod 103a is a "Z"-shaped structure, and the first detour portion 103a-1 is a curved structure. The end of the limiting rod 103a is squeezed by the connecting member 104 so that the limiting rod 103a can be bent along the direction of the first detour portion 103a-1; the second detour portion 103a-2 is matched with the pressing rod 104b, which can better fix the position between the connecting member 104 and the elastic member 103; the position of the connecting member 104 is fixed so that the position of the limiting pin 105 is fixed.

[0060] Furthermore, the connecting member 104 includes a fixing plate 104a and a pressing rod 104b arranged on the outer wall of the fixing plate 104a; the fixing plate 104a includes an axial hole 104a-1 passing through one end thereof, and a groove 104a-2 opened at the other end of the fixing plate 104a; the rotating shaft 102a passes through the axial hole 104a-1 and extends into the interior thereof; the rotating shaft 102a rotates inside the axial hole 104a-1; the fixing plate 104a and the pressing rod 104b are integrally formed; the pressing rod 104b is a semicircular structure; the pressing rod 104b cooperates with the limiting rod 103a; the end of the pressing rod 104b contacts the second detour portion 103a-2.

[0061] Preferably, the fixing plate 104a is a "?"-shaped structure, and the pressing rod 104b and the fixing plate 104a are integrally formed, and the fixing plate 104a can cooperate with the second detour portion 103a-2, and the two are mutually clamped, so that the position between the connecting member 104 and the elastic member 103 can be fixed; the position of the connecting member 104 is fixed, so that the position between the limit pin 105 and the hollow sleeve rod 201 is fixed; the rotating shaft 102a rotates along the inside of the shaft hole 104a-1, so that the end of the connecting member 104 is located in the slide groove 101a and can be flipped at a certain angle while moving; the flipping of the fixing plate 104a can drive the limit pin 105 to move.

[0062] Furthermore, the limit pin 105 includes a connecting plate 105a arranged at its end; the connecting plate 105a is on the inner side of the groove 104a-2; the connecting plate 105a rotates on the inner side of the groove 104a-2; the hollow sleeve rod 201 includes a notch 201a opened on its side wall; the connecting rod 202 includes a slot 202a opened on its surface; the hollow sleeve rod 201 cooperates with the connecting rod 202; the limit pin 105 passes through the notch 201a and extends to the inner side of the hollow sleeve rod 201; the limit pin 105 is adapted to the slot 202a.

[0063] Preferably, the connecting plate 105a is hinged and rotated with the groove 104a-2; the connecting member 104 is hinged and rotated with the connecting plate 105a, so that the connecting member 104 can rotate to drive the limit pin 105 to move; the limit pin 105 is matched with the slot 202a, and the limit pin 105 is engaged with the slot 202a; the limit pin 105 matches with the notch 201a, and the limit pin 105 passes through the notch 201a and extends to the inside of the hollow sleeve rod 201; the hollow sleeve rod 201 cooperates with the connecting rod 202, and the hollow sleeve rod 201 and the connecting rod 202 are slidably connected; the limit pin 105 passes through the notch 201a and extends to the inside of the hollow sleeve rod 201; the limit pin 105 is engaged with the slot 202a, so that the position between the hollow sleeve rod 201 and the connecting rod 202 can be fixed.

[0064] When in use, when the staff needs to adjust the length between the hollow sleeve rod 201 and the connecting rod 202; by toggling the pressing rod 104b, the pressing rod 104b drives the fixing plate 104a to rotate, so that the end of the fixing plate 104a rotates along the axial direction of the rotating shaft 102a. As the pressing rod 104b is continuously pressed down, the slider 102 slides along the fixing plate 104a inside the support frame 101, and the fixing plate 104a moves along the vertical direction of the inner side of the support frame 101 while the reset spring 102 is pressed. 01b is squeezed; as the fixing plate 104a is turned over, the fixing plate 104a drives the limit pin 105 hinged at the other end to move, so that the limit pin 105 moves along the inner wall of the notch 201a; while the fixing plate 104a drives the limit pin 105 to move, the pressing rod 104b squeezes the end of the limit rod 103a, so that the limit rod 103a is bent along the arc of the first detour portion 103a-1; as the pressing rod 104b is continuously turned over, the end of the pressing rod 104b is hinged to the first detour portion 103a-1, and the end of the pressing rod 104b is pressed against the first detour portion 103a-2. The two detours 103a-2 are connected to each other, so that the position between the pressing rod 104b and the limiting rod 103a is fixed. At this time, the end of the limiting pin 105 moves to a position flush with the inner wall of the hollow sleeve rod 201, and then the telescopic distance between the hollow sleeve rod 201 and the connecting rod 202 is adjusted. When it is adjusted to a suitable length; push the toggle rod 103b to one side, so that the limiting rod 103a is turned along the first detour 103a-1, so that the second detour 103a-2 is away from the pressing rod 104 b, so that the limiting rod 103a no longer limits the pressing rod 104b; at this time, the reset spring 101b is reset, and the reset spring 101b lifts the end of the fixing plate 104a, so that the fixing plate 104a moves inside the sliding groove 101a and flips at a certain angle. As the fixing plate 104a flips, the limiting pin 105 is inserted into the hollow sleeve rod 201, and the limiting pin 105 is snapped with the slot 202a, so that the position between the hollow sleeve rod 201 and the connecting rod 202 can be fixed.

[0065] In summary, when using the device for measurement, two test needles can be used for measurement at the same time with one hand, and accidental touching of other wiring terminals during the test can be avoided, thereby improving work efficiency and safety. At the same time, the relative distance between the two test needles can be flexibly adjusted according to the actual situation on site, which is more applicable and improves the work efficiency of the staff to a certain extent.

[0066] Example 3

[0067] Reference Figure 1 to Figure 5, which is the third embodiment of the utility model, this embodiment further provides a meter test needle fixing device, including; a clamping unit 300, including a first clamping piece 301, a second clamping piece 302 arranged at the end of the first clamping piece 301, and a torsion spring 303 arranged on the inner side of one end of the first clamping piece 301; the hollow sleeve rod 201 and a section of the connecting rod 202 are both connected to the first clamping piece 301.

[0068] Preferably, there are two groups of clamping units 300, which are respectively located at one end of the hollow sleeve rod 201 and the connecting rod 202; the first clamping member 301 and the second clamping member 302 are both semicircular structures, and rubber pads are arranged inside them to provide certain protection for the hands; the first clamping member 301 and the hollow sleeve rod 201 are welded and fixed; the first clamping member 301 and the connecting rod 202 are welded and fixed.

[0069] Furthermore, the second clamping member 302 includes a handle 302a arranged on its side wall; the handle 302a is a curved plate-like structure; one end of the first clamping member 301 and the second clamping member 302 are hinged and rotated; the first clamping member 301 and the second clamping member 302 are brought closer to each other through the torsion spring 303.

[0070] Preferably, the handle 302a is a curved arc structure, so that the staff can better match the finger grip 302a, so as to flip the first clamp 301 and the second clamp 302 open; the torsion force of the torsion spring 303 can make the first clamp 301 and the second clamp 302 close to each other, so that the meter test needle can be fixed; the first clamp 301 and the second clamp 302 are both made of elastic metal material, which can better fit the outside of meter test needles of different sizes, thereby completing the fixation of meter test needles of different sizes.

[0071] When in use, when the staff needs to fix the meter test needle, they press the handle 302a to make the end of the second clamping piece 302 located inside the end of the first clamping piece 301 and flip it over. While the second clamping piece 302 flips over, the torsion spring 303 is compressed; the second clamping piece 302 flips its open end away from the first clamping piece 301; there is a large gap between the first clamping piece 301 and the second clamping piece 302; thereby, it is convenient for the staff to place the meter test needle between the first clamping piece 301 and the second clamping piece 302, and then slowly release the hand pressing on the handle 302a, at which time the torsion spring 303 slowly releases its elastic force; the torsion spring 303 drives the second clamping piece 302 to flip over, so that the inner walls of the first clamping piece 301 and the second clamping piece 302 complete the clamping of the meter test needle.

[0072] In summary, the two test needles can be fixed, and the two sets of clamps are connected by springs, so that the device can be used to clamp test needles of different diameters. The device has high applicability, simple structure and operation, and is easy to carry.

[0073] It is important to note that the above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art 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. An adjustment mechanism, characterized in that: include, A positioning unit (100) comprises a support frame (101), two groups of sliders (102) arranged inside the support frame (101), an elastic member (103) arranged on one side of the support frame (101), a connecting member (104) arranged between the two groups of sliders (102), and a limiting pin (105) arranged inside an end of the connecting member (104); A sleeve rod unit (200) comprises a hollow sleeve rod (201) and a connecting rod (202) arranged inside the hollow sleeve rod (201); The support frame (101) is located on and fixed to the outer surface of the hollow sleeve rod (201); and the elastic member (103) is located on and fixed to the outer surface of the hollow sleeve rod (201).

2. The adjustment mechanism according to claim 1, characterized in that: The support frame (101) comprises a slide groove (101a) opened on a side wall, and a return spring (101b) arranged on the inner side of the support frame (101); The slider (102) includes a rotating shaft (102a) arranged at an end thereof; The cross section of the support frame (101) is a "concave"-shaped structure; the sliding block (102) is adapted to the sliding groove (101a); and the sliding block (102) slides inside the sliding groove (101a).

3. The adjustment mechanism according to claim 2, characterized in that: The elastic member (103) comprises a limiting rod (103a) and a toggle rod (103b) arranged on the outer wall of the limiting rod (103a); The limiting rod (103a) comprises a first detour portion (103a-1) arranged on one side of the bottom thereof, and a second detour portion (103a-2) arranged on one side of the top of the limiting rod (103a).

4. The adjustment mechanism according to claim 3, characterized in that: The limiting rod (103a) is bent along the bending direction of the first detour portion (103a-1); The limiting rod (103a) is a "Z"-shaped structure.

5. The adjustment mechanism according to claim 4, characterized in that: The connecting member (104) comprises a fixing plate (104a) and a pressing rod (104b) arranged on the outer wall of the fixing plate (104a); The fixing plate (104a) comprises an axial hole (104a-1) penetrating one end thereof, and a groove (104a-2) opened at the other end of the fixing plate (104a); The rotating shaft (102a) passes through the shaft hole (104a-1) and extends into the interior thereof; the rotating shaft (102a) rotates inside the shaft hole (104a-1).

6. The adjustment mechanism according to claim 5, characterized in that: The fixing plate (104a) and the pressing rod (104b) are integrally formed; The pressing rod (104b) is a semicircular structure; The pressing rod (104b) cooperates with the limiting rod (103a); The end of the pressing rod (104b) is in contact with the second detour portion (103a-2).

7. The adjustment mechanism according to claim 6, characterized in that: The limiting pin (105) comprises a connecting plate (105a) arranged at an end thereof; The connecting plate (105a) is located inside the groove (104a-2); the connecting plate (105a) rotates inside the groove (104a-2).

8. The adjustment mechanism according to any one of claims 2 to 7, characterized in that: The hollow sleeve rod (201) comprises a notch (201a) formed on a side wall thereof; The connecting rod (202) comprises a slot (202a) formed on its surface; The hollow sleeve rod (201) matches the connecting rod (202); The limiting pin (105) passes through the notch (201a) and extends to the inner side of the hollow sleeve rod (201); The limiting pin (105) is matched with the clamping slot (202a).

9. A meter test needle fixing device, characterized in that: comprising the adjustment mechanism according to any one of claims 1 to 8; and A clamping unit (300) comprising a first clamping member (301), a second clamping member (302) arranged at the end of the first clamping member (301), and a torsion spring (303) arranged on the inner side of one end of the first clamping member (301); The hollow sleeve rod (201) and a section of the connecting rod (202) are both connected to the first clamping member (301).

10. The meter test needle fixing device according to claim 9, characterized in that: The second clamping member (302) comprises a handle (302a) arranged on a side wall thereof; The handle (302a) is a curved plate-shaped structure; One end of the first clamping member (301) and one end of the second clamping member (302) are hinged and rotatable; The first clamping member (301) and the second clamping member (302) are brought closer together via the torsion spring (303).

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