Wiring clamp of metering test instrument
By designing movable components and adjustment components, the problem of insufficient clamping force of existing metrological testing instrument wiring fixtures is solved, and the stable clamping and application scope of wiring posts of different shapes is achieved to ensure the stability and practicality of the test.
Patent Information
- Application Number
- CN202420830190.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The clamping force of the existing metering and testing instruments is insufficient, making it difficult to stably clamp the wiring posts with larger sizes, which can easily cause the wiring to fall and affect the testing work.
A wiring fixture including a main seat, a movable assembly and an adjustment assembly is designed. The movable assembly adjusts the position of the clamp through a screw, bevel gear, pulley set and gear transmission, and the adjustment assembly is convenient for use through a turntable, handle, stop ring and spring structure. The clamping position is adjusted and locked to expand the clamping range and stability.
By expanding the contact area between the clamp and the terminal and adjusting the position of the clamp, the clamping force is improved and the scope of application is expanded to ensure the stability and practicality of the test.
Smart Images
Figure CN222280717U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wiring clamps, in particular to a wiring clamp for a measuring and testing instrument. Background Art
[0002] A wiring clamp is a tool used for cable wiring, also known as a cable wiring clamp. It is also often used in the field of electric energy metering. Measuring and testing instruments are connected to the metering circuit with the help of a wiring clamp for detection.
[0003] However, most of the wiring clamps actually used for measuring and testing instruments are of a clamp structure. Although such a structure is convenient for clamping, its operating stroke is small. When encountering the wiring posts of larger-sized measuring and testing instruments, the clamping force that can be provided by the existing clamp structure is limited. During the actual testing process, the wiring clamp is prone to fall off, affecting the actual testing work. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a wiring fixture for a measuring and testing instrument, which solves the problems mentioned in the above background.
[0005] The utility model provides the following technical solution: a wiring fixture for a measuring and testing instrument, comprising: a main body seat, on which two clamping plates in contact with wiring posts of the measuring and testing instrument are slidably arranged, and on which a wiring tube for connecting cables is also arranged; a movable component, which is movably arranged on the main body seat, and is used to adjust the positions of the two clamping plates at the same time; an adjusting component, which is also movably arranged on the main body seat, and the adjusting component can facilitate a user to adjust the state of the movable component according to actual usage conditions.
[0006] Preferably, the movable component includes a screw, a first bevel gear, a second bevel gear, a pulley group, a transmission shaft, a first gear and a second gear. The screw is rotatably set on the main body seat and is threadedly connected to the clamp plate, and there are two screws in total. The second gear is fixedly installed on the end face of one of the screws. The transmission shaft is connected to the other screw through a pulley group. The second bevel gear is fixedly installed on the end face of the screw connected to the pulley group. The transmission shaft is rotatably set inside the main body seat and fixedly connected to the first gear. The first bevel gear is also rotatably set on the main body seat and meshes with the second bevel gear.
[0007] Preferably, the adjusting assembly includes a turntable, a handle, a stop ring, a connecting shaft, a first spring, a connecting rod, a connecting rope, an insert block, a first pulley, a second spring, a second pulley and a slider, the turntable is fixedly mounted on the top surface of the connecting shaft, the handle is slidably arranged on the clamping plate, the stop ring is located below the turntable and contacts with the main body seat, the connecting shaft is rotatably arranged on the main body seat and fixedly connected to the first bevel gear, the two ends of the first spring are respectively fixedly connected to the stop ring and the turntable, the two ends of the connecting rod are respectively fixedly connected to the handle and the stop ring, the connecting rope is movably arranged inside the handle, the insert block is slidably arranged on the handle, the first pulley and the second pulley are both movably arranged inside the clamping plate, the two ends of the second spring are respectively fixedly connected to the insert block and the handle, the slider is slidably arranged on the handle, and the two ends of the connecting rope pass around the first pulley and the second pulley and are fixedly connected to the insert block and the slider.
[0008] Preferably, the first gear is located below the second gear and meshes with the second gear, and the size of the first gear is consistent with that of the second gear.
[0009] Preferably, the pulley set is located on the side of the second bevel gear, and the pulley set does not contact the second bevel gear.
[0010] Preferably, a plurality of tiny protrusions for enhancing friction are provided on the contact between the stop ring and the main body seat, and the plurality of protrusions are arranged in a circular array on the bottom surface of the stop ring, and the protrusions also cooperate with the main body seat.
[0011] Preferably, a slot is provided on the turntable, and the slot cooperates with the insert block.
[0012] Preferably, the clamping plate is provided with an arc surface and a plane surface, wherein the arc surface contacts the cylindrical terminal, and the plane surface contacts the square terminal.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1. The wiring clamp of the measuring and testing instrument is provided with a clamping plate that slides on the main body seat. The clamping plate is provided with an arc surface and a flat surface respectively, so as to be applicable to the application of the wiring posts of the measuring and testing instrument with different shapes, thereby expanding the contact area between the clamping plate and the wiring post. Then, the position of the clamping plate is adjusted by using a movable component to clamp the wiring post. At the same time, the establishment of the movable component can increase the travel range of the clamping plate, thereby expanding the application range of the overall device and improving the actual practicability.
[0015] 2. The wiring clamp of the measuring and testing instrument facilitates the user to adjust the device of the movable component by setting an adjustment component, so that the overall structure is more in line with the actual use scenario, and the adjustment component has a locking function to improve the stability of the overall device, while limiting the position of the clamp holding the terminal of the measuring and testing instrument to ensure the stability of subsequent tests. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic cross-sectional view of the main seat structure of the utility model;
[0018] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;
[0019] Figure 4 It is a schematic diagram of the partial structure of the turntable of the utility model;
[0020] Figure 5 for Figure 4 A magnified schematic diagram of the structure at B in the middle;
[0021] Figure 6 This is a schematic cross-sectional view of the structure of the handle portion of the utility model;
[0022] Figure 7 This is a schematic diagram of the structure of the stop ring of the utility model.
[0023] In the figure: 1. main body; 2. clamping plate; 3. wiring tube; 4. adjustment component; 41. turntable; 42. handle; 43. stop ring; 44. connecting shaft; 45. first spring; 46. connecting rod; 47. connecting rope; 48. plug-in block; 49. first pulley; 410. second spring; 411. second pulley; 412. slider; 5. movable component; 51. screw rod; 52. first bevel gear; 53. second bevel gear; 54. pulley group; 55. transmission shaft; 56. first gear; 57. second gear. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-7A wiring fixture for a measuring and testing instrument comprises: a main body seat 1, on which two clamping plates 2 in contact with the wiring posts of the measuring and testing instrument are slidably arranged, and a wiring tube 3 for connecting cables is also arranged on the main body seat 1; an arc surface and a plane surface are arranged on the clamping plate 2, wherein the arc surface contacts with the cylindrical wiring post, and the plane surface contacts with the square wiring post, thereby expanding the application scope of the overall device and improving practicality.
[0026] The movable component 5 is movably arranged on the main body seat 1, and the movable component 5 is used to adjust the positions of the two clamping plates 2 at the same time; the movable component 5 includes a screw rod 51, a first bevel gear 52, a second bevel gear 53, a pulley group 54, a transmission shaft 55, a first gear 56 and a second gear 57. The screw rod 51 is rotatably arranged on the main body seat 1 and is threadedly connected to the clamping plate 2. There are two screw rods 51 in total. The second gear 57 is fixedly installed on the end face of one of the screw rods 51. The transmission shaft 55 is connected to the other screw rod 51 through the pulley group 54. The second bevel gear 53 is fixedly installed on the On the end face of the screw rod 51 connected to the pulley group 54, the transmission shaft 55 is rotatably set inside the main body seat 1 and fixedly connected with the first gear 56. The first bevel gear 52 is also rotatably set on the main body seat 1 and meshes with the second bevel gear 53. The first gear 56 is located below the second gear 57 and meshes with the second gear 57. The size of the first gear 56 is consistent with that of the second gear 57. The pulley group 54 is located on the side of the second bevel gear 53, and the pulley group 54 does not contact the second bevel gear 53, ensuring that the established structure can operate stably and reasonably, thereby achieving the pre-established purpose.
[0027] The adjusting component 4 is also movably arranged on the main body seat 1, and the adjusting component 4 can facilitate the user to adjust the state of the movable component 5 according to the actual use situation. The adjusting component 4 includes a turntable 41, a handle 42, a stop ring 43, a connecting shaft 44, a first spring 45, a connecting rod 46, a connecting rope 47, an insert 48, a first pulley 49, a second spring 410, a second pulley 411 and a slider 412. The turntable 41 is fixedly installed on the top surface of the connecting shaft 44, the handle 42 is slidably arranged on the splint 2, the stop ring 43 is located below the turntable 41 and contacts the main body seat 1, the connecting shaft 44 is rotatably arranged on the main body seat 1 and fixedly connected to the first bevel gear 52, the two ends of the first spring 45 are respectively fixedly connected to the stop ring 43 and the turntable 41, and the two ends of the connecting rod 46 are respectively connected to the handle 42 and The stop ring 43 is fixedly connected, the connecting rope 47 is movably arranged inside the handle 42, the plug block 48 is slidably arranged on the handle 42, the first pulley 49 and the second pulley 411 are movably arranged inside the splint 2, the two ends of the second spring 410 are respectively fixedly connected to the plug block 48 and the handle 42, the slider 412 is slidably arranged on the handle 42, the two ends of the connecting rope 47 are respectively passed around the first pulley 49 and the second pulley 411 and are fixedly connected to the plug block 48 and the slider 412, a plurality of small protrusions for enhancing friction are arranged on the contact between the stop ring 43 and the main body 1, and a plurality of protrusions are arranged in a circular array on the bottom surface of the stop ring 43, the protrusion also cooperates with the main body 1, a slot is provided on the turntable 41, and the slot cooperates with the plug block 48 to facilitate the user's actual operation and improve the use efficiency.
[0028] Working principle: two clamping plates 2 are slidably set on the main base 1, and the positions of the two clamping plates 2 are adjusted by using the movable component 5 to clamp the terminal of the measuring tester, and then the cable is inserted into the main base 1 through the wiring tube 3 on the main base 1 to complete the wiring.
[0029] When the positions of the two clamping plates 2 are adjusted by using the movable component 5, the two screw rods 51 rotating inside the main body 1 are respectively threadedly connected to the two clamping plates 2, and the second gear 57 is fixed on one of the screw rods 51, and the transmission shaft 55 is connected to the other screw rod 51 through a pulley set 54, and the second bevel gear 53 meshing with the first bevel gear 52 is also fixed on the screw rod 51 connected to the pulley set 54, and the second gear 57 is also meshed with the first gear 56 fixed on the transmission shaft 55, wherein the first gear 56 and the second gear 57 are of the same size, so when a single screw rod 51 rotates, the other screw rod 51 will rotate in the opposite direction, so that the two clamping plates 2 connected to the two screw rods 51 will synchronously perform mirror sliding motion, and the two clamping plates 2 can cooperate to clamp the main body 1 on the terminal post of the measuring tester.
[0030] When the user actually operates, he pulls the sliding handle 42 on the turntable 41, so that the stop ring 43 fixedly connected to the handle 42 by the connecting rod 46 slides upward without contacting the main body seat 1. Because the contact surface between the stop ring 43 and the main body seat 1 is provided with a plurality of fine protrusions for enhancing friction and cooperates with the main body seat 1, when the stop ring 43 is not in contact with the main body seat 1, the user can drive the turntable 41 to rotate through the handle 42, and the turntable 41 is fixedly connected to the first bevel gear 52 by the connecting shaft 44. Therefore, when the turntable 41 rotates, the screw rod 51 can be driven to rotate and adjust the position of the clamping plate 2. When the handle 42 slides upward, the sliding plug 48 inside the handle 42 is fixedly connected to the second spring 41 0, the insert block 48 will be inserted into the turntable 41, temporarily limiting the position of the handle 42, so that the stop ring 43 is in a state of not contacting the main body 1, so that the user can turn the turntable 41 to make corresponding adjustments, and pull the slider 412 sliding on the handle 42. Under the action of the connecting rope 47 that passes through the first pulley 49 and the second pulley 411 at both ends and is fixedly connected to the insert block 48 and the slider 412, the insert block 48 will slide toward the inside of the handle 42 with the slider 412 and disengage from the turntable 41. At this time, under the action of the first spring 45 fixed to the turntable 41 and the stop ring 43 at both ends, the stop ring 43 is prompted to slide downward and contact the main body 1, thereby limiting the rotation of the turntable 41 and locking the overall structure.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A wiring fixture for a measuring and testing instrument, characterized in that: include: A main body seat (1), on which two clamping plates (2) are slidably arranged for contact with the wiring posts of the measuring and testing instrument, and a wiring tube (3) for connecting cables is also arranged on the main body seat (1); A movable component (5), the movable component (5) being movably arranged on the main body seat (1), and the movable component (5) being used to simultaneously adjust the positions of the two clamping plates (2); The adjusting component (4) is also movably arranged on the main body seat (1), and the adjusting component (4) can facilitate the user to adjust the state of the movable component (5) according to actual usage conditions.
2. A wiring fixture for a measuring and testing instrument according to claim 1, characterized in that: The movable assembly (5) comprises a screw (51), a first bevel gear (52), a second bevel gear (53), a pulley group (54), a transmission shaft (55), a first gear (56) and a second gear (57); the screw (51) is rotatably arranged on the main body seat (1) and is threadedly connected to the clamping plate (2); two screws (51) are provided; the second gear (57) is fixedly mounted on the end face of one of the screws (51); the transmission shaft (55) is transmission-connected to the other screw (51) via the pulley group (54); the second bevel gear (53) is fixedly mounted on the end face of the screw (51) connected to the pulley group (54); the transmission shaft (55) is rotatably arranged inside the main body seat (1) and is fixedly connected to the first gear (56); the first bevel gear (52) is also rotatably arranged on the main body seat (1) and meshes with the second bevel gear (53).
3. A wiring fixture for a measuring and testing instrument according to claim 2, characterized in that: The adjusting assembly (4) comprises a rotating disk (41), a handle (42), a stop ring (43), a connecting shaft (44), a first spring (45), a connecting rod (46), a connecting rope (47), an insert block (48), a first pulley (49), a second spring (410), a second pulley (411) and a slider (412); the rotating disk (41) is fixedly mounted on the top surface of the connecting shaft (44); the handle (42) is slidably disposed on the clamping plate (2); the stop ring (43) is located below the rotating disk (41) and is in contact with the main body seat (1); the connecting shaft (44) is rotatably disposed on the main body seat (1) and is fixedly connected to the first bevel gear (52); two ends of the first spring (45) are respectively connected to the stop ring (410), and the second spring (410) is connected to the second bevel gear (52). The first and second pulleys (49 and 411) are movably arranged inside the clamping plate (2), and the second spring (410) is respectively fixedly connected to the plug block (48) and the handle (42). The slider (412) is slidably arranged on the handle (42). The two ends of the connecting rod (46) are respectively fixedly connected to the handle (42) and the stop ring (43). The connecting rope (47) is movably arranged inside the handle (42). The plug block (48) is slidably arranged on the handle (42). The first pulley (49) and the second pulley (411) are both movably arranged inside the clamping plate (2). The two ends of the second spring (410) are respectively fixedly connected to the plug block (48) and the handle (42). The slider (412) is slidably arranged on the handle (42). The two ends of the connecting rope (47) are respectively passed around the first pulley (49) and the second pulley (411) and are fixedly connected to the plug block (48) and the slider (412).
4. A wiring fixture for a measuring and testing instrument according to claim 2, characterized in that: The first gear (56) is located below the second gear (57) and meshes with the second gear (57); the size of the first gear (56) is consistent with the size of the second gear (57).
5. A wiring fixture for a measuring and testing instrument according to claim 2, characterized in that: The belt pulley set (54) is located on the side of the second bevel gear (53), and the belt pulley set (54) does not contact the second bevel gear (53).
6. A wiring fixture for measuring and testing instruments according to claim 3, characterized in that: A plurality of fine protrusions for enhancing friction are provided on the contact between the stop ring (43) and the main body seat (1), and the plurality of protrusions are arranged in a circular array on the bottom surface of the stop ring (43), and the protrusions also cooperate with the main body seat (1).
7. A wiring fixture for a measuring and testing instrument according to claim 3, characterized in that: The rotating disk (41) is provided with a slot, which cooperates with the insert block (48).
8. A wiring fixture for a measuring and testing instrument according to claim 1, characterized in that: The clamping plate (2) is provided with an arcuate surface and a plane surface, wherein the arcuate surface contacts the cylindrical terminal, and the plane surface contacts the square terminal.