Hand-held clamp for electricity meter
By designing the sliding fit between the slider and the base frame of the hand-held clamp and the sliding structure of the pull rod, the safe clamping and removal of the meter function module is achieved, which solves the safety hazards of the existing clamp when replacing the meter module and improves the operational safety and efficiency.
Patent Information
- Application Number
- CN202422394999.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-09-30
AI Technical Summary
When replacing the meter function module, the existing clamp cannot effectively prevent problems such as elbows hitting objects behind, people leaning back or falling from a height, and there is a risk of cutting fingers.
A hand-held clamp was designed. Through the sliding cooperation between the slider and the base and the sliding structure of the pull rod, a two-level sliding stroke was formed. The first level was used to clamp the meter functional module, and the second level was used to pull out the functional module. The difference in spring coefficients of different springs was used to achieve graded control of the clamping and pulling out functions.
It effectively avoids the risk of elbows hitting objects behind the back, people falling backward or falling from a height, improves operational safety and efficiency, and avoids finger cuts.
Smart Images
Figure CN223400964U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of clamping devices, in particular to a hand-held clamp for electric meters. Background Art
[0002] An electric meter is an instrument used to measure electricity consumption. When charging electricity bills, the corresponding fees are charged based on the electricity consumption measured by the meter. Electricity meters are mainly divided into mechanical meters and electronic meters. Compared with mechanical meters, electronic meters have higher accuracy levels, stability, anti-interference capabilities, and service life, making them widely used in daily life.
[0003] In terms of specific structure, electronic electricity meters are mainly assembled by integrating multiple modules such as sampling module, power module, display module, metering module, communication module, control module and MCU processing module. The above-mentioned multi-module integrated assembly method enables the electricity meter to be replaced by a single model when it is maintained or upgraded with relevant functional parameters, avoiding the traditional method of replacing the entire electricity meter, thereby reducing the high related costs caused by replacing the entire electricity meter.
[0004] Currently, when replacing a functional module in an electric meter, workers often use their thumb, index finger, or middle finger to grip and hold the module to be replaced, then forcibly pull it out. During the removal process, the worker can easily lean back or hit their elbow with objects behind them due to poor control of force. This operation can also easily cut their fingers and cause bleeding. Furthermore, factors such as a small contact area and limited finger force result in relatively low efficiency. Therefore, workers often use a gripper to replace their fingers to grip the functional module, avoiding finger cuts and increasing the gripping force. However, when pulling the trigger component of an existing gripper, the gripper's gripper components, such as the claws, can only clamp the functional module, but cannot further remove the module. The gripper can only be pulled outward, along with the functional module. Therefore, existing grippers can only alleviate the problems of finger cuts and limited finger force, but still cannot solve the problems of elbow strikes, leaning back, or even falling from height due to improper force. Utility Model Content
[0005] The purpose of the utility model is to provide a hand-held clamp for an electric meter, which enables the clamping component on the clamp to clamp the functional module of the electric meter when triggered, and pull it out after clamping is completed, thereby avoiding operational problems such as elbows hitting objects behind the back, people leaning back, or even falling from a high altitude due to improper force.
[0006] The technical solution provided by the utility model is as follows: a hand-held clamp for an electric meter, comprising a base frame and a clamping assembly for clamping a functional module of the electric meter, a slider being provided on one side of the base frame, the slider slidingly cooperating with the base frame, the clamping assembly being arranged on the moving path of the slider, and being hinged to the slider so as to be opened or closed on the slider; a pull rod that can be pulled back and forth is provided on the base frame, the pull rod sequentially passes through one side of the base frame and the opposite sides of the slider, and extends to the clamping assembly, the clamping assembly is hinged to the pull rod, a first spring is abutted between the clamping assembly and the slider, a second spring is abutted between the slider and the base frame, the spring coefficient of the first spring is smaller than the spring coefficient of the second spring, and the first spring and the second spring are both sleeved on the pull rod.
[0007] In the hand-held clamp for the electric meter, the base frame is provided with two positioning support blocks for abutting against the electric meter, the clamping assembly and the slider are both provided between the two positioning support blocks, and the slider is slidably engaged with the two positioning support blocks.
[0008] In the above-mentioned hand-held clamp for an electric meter, the thickness of the positioning support block gradually decreases from an end adjacent to the base frame to an end away from the base frame.
[0009] In the above-mentioned hand-held clamp for an electric meter, a bayonet is provided on the end of the positioning support block away from the end of the base frame.
[0010] In the above-mentioned hand-held clamp for electric meters, a pull ring is provided on the end of the pull rod away from the clamping assembly.
[0011] In the above-mentioned hand-held clamp for electric meters, a gripping hole for hand gripping is provided on the base frame, the pull ring is arranged in the gripping hole, and slides with the edge of the gripping hole in a manner of reciprocating along the axial direction of the pull rod.
[0012] In the hand-held clamp for an electric meter, the pull ring is provided with a clamping groove arranged along its outer circumference, and the two opposite sides of the clamping groove, separated by the pull rod, are respectively clamped and slidably engaged with the adjacent edges of the grip hole;
[0013] The side of the clamping slot away from the clamping assembly and the side adjacent to the clamping assembly are respectively used to be clamped on the opposite edges of the gripping hole.
[0014] In the above-mentioned hand-held clamp for electric meters, the gripping hole and the pull ring are both rectangular structures.
[0015] In the above-mentioned hand-held clamp for electric meters, the clamping assembly includes two clamping arms symmetrically arranged with the pull rod as the symmetry axis, the middle parts of the two clamping arms are hinged on the base frame, the pull rod is hinged to one end of the two clamping arms adjacent to the pull rod respectively, and the first spring abuts against the two clamping arms.
[0016] In the hand-held clamp for the electric meter, the ends of the two clamp arms away from the pull rod are each provided with an arm hook for embedding in the slot or the slit, and the two arm hooks are opposite to each other.
[0017] After adopting the above technical solution, the utility model has the following beneficial effects:
[0018] This technical solution sets a sliding fit between the slider and the base and between the slider and the pull rod, so that the slider can slide on the base and the pull rod can slide on the slider. The three together form a sliding structure with two levels of sliding stroke. The first level of sliding stroke drives the clamping component to clamp the functional module of the electric meter, and the second level of sliding stroke drives the clamping component to pull out the functional module of the electric meter.
[0019] When the first spring is compressed, the first spring is compressed, and the second spring is compressed. When the first spring is compressed, the friction between the pull rod and the slider is parallel to the pulling direction of the pull rod, and the pulling force is not transmitted to the slider, so the slider cannot be pushed to overcome the obstruction caused by the reaction force transmitted by the second spring. At this time, the slider and the base are relatively stationary, and the pull rod slides on the slider and is in a first-level sliding state. In this state, it can only drive the clamping assembly to retract and clamp the functional module of the electric meter.
[0020] When the second spring is compressed, the first spring has been completely compressed and can no longer convert and absorb the extrusion force. At this time, the extrusion force is completely transmitted to the slider, overcoming the resistance caused by the reaction force exerted by the second spring, and then pushing the slider. The pull rod and the slider are relatively stationary, and the slider slides on the base and is in the second-level sliding state. The role of the pull rod is changed from only driving the clamping component to retract to driving the clamping component and the slider to move together, thereby pulling out the functional module of the electric meter, so that the clamping component on the clamp can clamp the functional module of the electric meter when triggered, and pull it out after clamping is completed, thereby avoiding operational problems such as elbows hitting objects behind, people leaning back, or even falling from a high altitude due to improper force. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a perspective view of a hand-held clamp for an electric meter according to Example 1 of the present utility model;
[0022] Figure 2 It is a front view of a hand-held clamp for an electric meter according to embodiment 1 of the present utility model;
[0023] Figure 3 It is a cross-sectional view of a hand-held clamp for an electric meter according to Example 1 of the present utility model.
[0024] Reference numerals: 1, base frame; 2, grip hole; 3, pull ring; 4, clamping assembly; 5, first spring; 6, slider; 7, second spring; 8, pull rod;
[0025] 11. Positioning support block; 111. Chamfer; 112. Bayonet;
[0026] 31. Card slot; 41. Clamp arm; 411. Arm hook. DETAILED DESCRIPTION
[0027] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods, but this does not constitute any limitation to the present invention.
[0028] Example 1:
[0029] like Figure 1-3 As shown, the hand-held clamp for the electric meter includes a base frame 1 and a clamping assembly 4 for clamping the functional module of the electric meter. A slider 6 is provided on one side of the base frame 1, and the slider 6 slides with the base frame 1. The clamping assembly 4 is provided on the moving path of the slider 6 and is hinged to the slider 6 so as to open or close on the slider 6; a pull rod 8 that can be pulled back and forth is provided on the base frame 1, and the pull rod 8 passes through one side of the base frame 1 and the opposite sides of the slider 6 in sequence, and extends to the clamping assembly 4, and the clamping assembly 4 is hinged to the pull rod 8. A first spring 5 is abutted between the clamping assembly 4 and the slider 6, and a second spring 7 is abutted between the slider 6 and the base frame 1. The spring coefficient of the first spring 5 is smaller than the spring coefficient of the second spring 7, and the first spring 5 and the second spring 7 are both sleeved on the pull rod 8.
[0030] The specific working principle is as follows: the present technical solution sets a sliding fit between the slider 6 and the base 1 and a sliding fit between the slider 6 and the pull rod 8, so that the slider 6 can slide on the base 1 and the pull rod 8 can slide on the slider 6. The three together form a sliding structure with a two-level sliding stroke. The first level of sliding stroke drives the clamping component 4 to clamp the functional module of the electric meter, and the second level of sliding stroke drives the clamping component 4 to pull out the functional module of the electric meter.
[0031] During specific operation, the pull rod 8 is pulled, and the pull rod 8 slides on the base frame 1 and the slider 6, and at the same time drives the clamping assembly 4 hinged on the slider 6 to close, and generates an extrusion force on the first spring 5. The extrusion force is transmitted to the base frame 1 through the first spring 5, the slider 6 and the second spring 7 in sequence. The base frame 1 also gives a reaction force to the second spring 7 and the first spring 5. The spring coefficient of the first spring 5 is smaller than the spring coefficient of the second spring 7, that is, the first spring 5 is softer than the second spring 7. Under the action of the extrusion force and the reaction force, the first spring 5 is compressed first, and only after reaching the maximum elastic deformation is the second spring 7 compressed. When the first spring 5 is compressed, the direction of the friction force between the pull rod 8 and the slider 6 is parallel to the pulling direction of the pull rod 8, and the pulling force is not transmitted to the slider 6, so the slider 6 cannot be pushed to overcome the resistance caused by the reaction force transmitted by the second spring 7. At this time, the slider 6 and the base frame 1 are relatively stationary, and the pull rod 8 slides on the slider 6, in the first level sliding state. In this state, it can only drive the clamping assembly 4 to retract and clamp the functional module of the electric meter;
[0032] When the second spring 7 is compressed, the first spring 5 has been completely compressed and cannot continue to convert and absorb the extrusion force. At this time, the extrusion force is completely transmitted to the slider 6, overcoming the obstruction caused by the reaction force applied by the second spring 7 to the slider 6, and then pushing the slider 6. The pull rod 8 and the slider 6 are relatively stationary. The slider 6 slides on the base 1 and is in the second-level sliding state. The role of the pull rod 8 is changed from only driving the clamping component 4 to retract to driving the clamping component 4 and the slider 6 to move together, thereby pulling out the functional module of the electric meter, realizing that the clamping component 4 on the clamp clamps the functional module of the electric meter when triggered, and pulls it out after completing the clamping, thereby avoiding operational problems such as elbows hitting objects behind, people leaning back, or even falling from a high altitude due to improper force.
[0033] In this embodiment, two positioning support blocks 11 for contacting the electric meter are provided on the base frame 1 , the clamping assembly 4 and the slider 6 are both provided between the two positioning support blocks 11 , and the slider 6 is slidably engaged with the two positioning support blocks 11 .
[0034] The setting of the positioning support block 11 allows the base frame 1 to be pressed against the electric meter through the positioning support block 11, and can also prevent the clamping component 4 from being unable to fold and expand due to pressing the clamping component 4 against the surface. When pulling the pull ring 3, the positioning support block 11 of the base frame 1 is pressed against the electric meter, which can not only position the base frame 1 and the electric meter, but also make the electric meter the force point for pulling the pull ring 3. When a card slot 31 or a card position is provided on the electric meter, the positioning support block 11 can also be inserted into it to improve positioning accuracy and positioning stability.
[0035] Preferably, the thickness of the positioning support block 11 gradually decreases from an end adjacent to the base frame 1 to an end away from the base frame 1 .
[0036] The thickness setting of the positioning support block 11 enables the positioning support block 11 to be inserted into the card gaps or card slots 31 with different spacings, and has good compatibility and popular practicality; among them, the thickness changes of the two positioning support blocks 11 can be the same or different, and this embodiment does not impose too many restrictions on this.
[0037] In a specific implementation, a chamfer 111 is provided at one end of the positioning support block 11 away from the base frame 1 , and the chamfer 111 extends toward an end of the positioning support block 11 adjacent to the base frame 1 .
[0038] The positioning support block 11 has a thickness gradient effect by providing a chamfer 111 ; both positioning support blocks 11 may be provided with a chamfer 111 , or one of the positioning support blocks 11 may be provided with the chamfer 111 , and this embodiment does not impose excessive restrictions.
[0039] In another embodiment, a bayonet 112 is provided at an end of the positioning support block 11 away from the base frame 1 .
[0040] The provision of the bayonet 112 enables the positioning support block 11 to be placed directly above the button, which can both press against the electric meter and prevent the button from being pressed.
[0041] The specific structure of the base frame 1 is that a grip hole 2 for hand gripping is opened on the base frame 1, and a pull ring 3 is arranged in the grip hole 2 and slides with the edge of the grip hole 2 in a manner of reciprocating along the axial direction of the pull rod 8.
[0042] The setting of the grip hole 2 allows the hand to grasp the base frame 1 as well as the pull ring 3 located in the grip hole 2. The edge of the grip hole 2 serves as a guide rail for the movement of the pull ring 3, guiding the pull ring 3 to move synchronously with the pull rod 8 along the axial direction of the pull rod 8, playing a positioning and guiding role for the pull ring 3, and restricting the pull ring 3 to move within the grip hole 2, thereby preventing the pull ring 3 and other components that move relative to the base frame 1 from being completely pushed out of the base frame 1, thereby preventing the product from falling apart. In addition, the maximum stroke of the pull ring 3 that can be pulled is also limited, thereby preventing the pull ring 3 and other components that move relative to the base frame 1 from being pulled out or falling off from the base frame 1.
[0043] In actual application, in addition to sliding cooperation with the base frame 1 itself, the pull rod 8 also indirectly slides cooperation with the base frame 1 through the pull ring 3. Under the guidance of the edge of the grip hole 2, the pull rod 8 improves the directionality and stability of the movement of the pull ring 3, and the smoothness and stability of the movement of the clamping assembly 4 and the slider 6 are improved.
[0044] In the specific structure of the pull ring 3, a card slot 31 is provided on the pull ring 3 along its outer circumference. The two opposite sides of the card slot 31, separated by the pull rod 8, are respectively engaged and slidably fitted with the adjacent edges of the gripping hole 2; the side of the card slot 31 away from the clamping component 4 and the side adjacent to the clamping component 4 are respectively used to be clamped on the opposite edges of the gripping hole 2.
[0045] The slot 31 on the outer surface of the pull ring 3 matches the outline of the base frame 1. The grip hole 2 and the pull ring 3 are preferably rectangular structures. In addition, other polygonal structures can also be used, and this embodiment does not impose too many restrictions on this.
[0046] In this embodiment, the length of the gripping hole 2 along the axial direction of the pull rod 8 is greater than the length of the pull ring 3 along the axial direction of the pull rod 8. When the pull ring 3 is pulled to the maximum stroke, the side edge of the gripping hole 2 away from the clamping assembly 4 is also stuck in the slot 31 (the local slot 31 facing the edge), so that the pull ring 3 is also positioned by the base frame 1 at the maximum stroke, avoiding the pull rod 8 from shaking due to the increase in the force arm with the base frame 1. When the pull ring 3 is reset to the initial position, the side edge of the gripping hole 2 adjacent to the clamping assembly 4 is also stuck in the slot 31 (the local slot 31 facing the edge), limiting the pull ring 3, avoiding the pull ring 3 from bending the pull rod 8 under the action of external force, thereby preventing the pull rod 8 from being stuck on the slider 6 and unable to drive the clamping assembly 4 and the slider 6 to move.
[0047] The specific structure of the clamping assembly 4 is that the clamping assembly 4 includes two clamping arms 41 symmetrically arranged with the pull rod 8 as the symmetry axis, the middle parts of the two clamping arms 41 are hinged on the base frame 1, the pull rod 8 is hinged to one end of the two clamping arms 41 adjacent to the pull rod 8, and the first spring 5 abuts against the two clamping arms 41.
[0048] As a further improvement, the two clamping arms 41 are provided with arm hooks 411 on one end away from the pull rod 8 for being embedded in the card slot 31 or the card gap, and the two arm hooks 411 are opposite to each other.
[0049] The above embodiments are preferred implementation methods of the present invention, but the implementation methods of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.
Claims
1. A hand-held clamp for an electric meter, comprising a base frame and a clamping assembly for clamping a functional module of the electric meter, characterized in that: A slider is provided on one side of the base frame, and the slider slides with the base frame. The clamping assembly is provided on the moving path of the slider and is hinged to the slider so as to open or close on the slider; a pull rod that can be pulled back and forth is provided on the base frame, and the pull rod passes through one side of the base frame and the opposite sides of the slider in sequence, and extends to the clamping assembly, the clamping assembly is hinged to the pull rod, a first spring is abutted between the clamping assembly and the slider, and a second spring is abutted between the slider and the base frame, the spring coefficient of the first spring is smaller than the spring coefficient of the second spring, and the first spring and the second spring are both sleeved on the pull rod.
2. The hand-held clamp for an electric meter according to claim 1, characterized in that: The base frame is provided with two positioning support blocks for abutting against the electric meter. The clamping assembly and the slider are both arranged between the two positioning support blocks. The slider is slidably matched with the two positioning support blocks.
3. The hand-held clamp for an electric meter according to claim 2, characterized in that: The thickness of the positioning support block gradually decreases from an end adjacent to the base frame to an end away from the base frame.
4. The hand-held clamp for an electric meter according to claim 2, characterized in that: A bayonet is provided on the end of the positioning support block away from the base frame.
5. The hand-held clamp for an electric meter according to any one of claims 1 to 4, characterized in that: A pull ring is provided on one end of the pull rod away from the clamping assembly.
6. The hand-held clamp for an electric meter according to claim 5, characterized in that: The base frame is provided with a gripping hole for a hand to pass through and grip. The pull ring is arranged in the gripping hole and is slidably matched with the edge of the gripping hole in a manner of reciprocating along the axial direction of the pull rod.
7. The hand-held clamp for an electric meter according to claim 6, characterized in that: The pull ring is provided with a clamping groove arranged around its outer circumference, and the two opposite sides of the clamping groove, separated by the pull rod, are respectively clamped and slidably engaged with the adjacent edges of the grip hole; The side of the clamping slot away from the clamping assembly and the side adjacent to the clamping assembly are respectively used to be clamped on the opposite edges of the gripping hole.
8. The hand-held clamp for an electric meter according to claim 6, characterized in that: The grip hole and the pull ring are both rectangular structures.
9. The hand-held clamp for an electric meter according to any one of claims 1 to 4, characterized in that: The clamping assembly includes two clamping arms symmetrically arranged with the pull rod as the symmetry axis, the middle parts of the two clamping arms are hinged on the base frame, the pull rod is hinged to one end of the two clamping arms adjacent to the pull rod respectively, and the first spring abuts against the two clamping arms.
10. The hand-held clamp for an electric meter according to claim 9, characterized in that: An arm hook for being embedded in a clamping groove or a clamping slit is provided on one end of the two clamping arms away from the pull rod, and the two arm hooks are directly opposite to each other.