Balancing spring type probe protection mechanism

Abstract

This utility model discloses a balanced spring-type probe protection mechanism, including a mounting plate on which a probe body is suspended. The probe body has a probe at its head end and a tail post at its tail end. A protective cover is provided outside the probe body, comprising an outer cylinder with a front cover at one end and a rear cover at the other. The front cover has a first through hole, and the rear cover has a second through hole. A third through hole is provided on the mounting plate, through which a screw threaded to the rear cover passes. A rear elastic element is fitted onto the screw, and a front elastic element is fitted onto the probe. Side elastic elements are distributed around the probe body and the outer cylinder. At least three third positioning grooves arranged in a ring around an axis are provided at one end of the mounting plate. Each third positioning groove is fitted with a ball-headed plunger whose ball head is embedded within the groove. This probe protection mechanism is a device used on testing instruments to protect the instrument's probe. It has comprehensive functions and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of measuring equipment technology, and more specifically, it relates to a balanced spring type probe protection mechanism. Background Technology

[0002] The probe is a precision device. During operation, errors in the program or operator mistakes can cause collisions with the probe, easily leading to a shift in the probe's center position. In severe cases, this can damage the precision probe device. Currently, most measuring instruments have probes without protection. Therefore, this invention specifically designs a suspended balance spring-type probe protection mechanism for measuring instruments. This mechanism can provide all-round protection for the probe during the operation of the measuring instrument, preventing probe shift and ensuring that the probe protection device can be effectively triggered in the event of the aforementioned situation. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a balanced spring type probe protection mechanism, which is a device used on testing instruments to protect the instrument probe.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The present utility model relates to a balanced spring type probe protection mechanism, including a mounting plate, on which a probe body is suspended. The probe body has a probe at its head end and a tail post connected to the mounting plate at its tail end. The probe body is provided with a protective cover, which includes an outer cylinder arranged coaxially with the probe body. One end of the outer cylinder has a front cover and the other end has a rear cover. The front cover has a first through hole for the probe to extend out and move axially and radially inside, and the rear cover has a second through hole for the tail post to extend out and move axially and radially inside.

[0005] The mounting plate has a third through hole coaxial with the outer cylinder. A screw threaded onto the rear cover passes through the third through hole. A rear elastic element is fitted on the screw, with one end abutting the mounting plate and the other end abutting the rear cover. A front elastic element is fitted on the probe, with one end abutting the probe body and the other end abutting the front cover. Several side elastic elements are arranged around the probe body and the outer cylinder.

[0006] The mounting plate has at least three third positioning grooves arranged in a ring array with equal intervals around the axis at an angle at one end facing the rear cover. Each of the third positioning grooves is matched with a ball plunger threaded to the rear cover, and the ball head of the ball plunger is embedded in the third positioning groove.

[0007] The present invention is further configured such that: the end of the mounting plate facing the rear cover and the end of the rear cover facing the mounting plate are respectively provided with a first positioning groove for the rear elastic element to be embedded.

[0008] The present invention is further configured such that: the end of the probe body facing the front cover and the end of the front cover facing the probe body are respectively provided with a second positioning groove for the front elastic element to be embedded.

[0009] The present invention is further configured such that both the front elastic element and the rear elastic element are compression springs.

[0010] The present invention is further configured such that: an outer tension spring frame fixed to the outer cylinder and an inner tension spring frame fixed to the probe body are provided between the probe body and the outer cylinder, and the side elastic element is a tension spring with one end connected to the outer tension spring frame and the other end connected to the inner tension spring frame.

[0011] The present invention is further configured such that both the outer tension spring frame and the inner tension spring frame are arranged close to the front cover.

[0012] The present invention is further configured such that: the number of the side elastic elements is eight, and the included angle between two adjacent side elastic elements is equal.

[0013] The present invention is further configured such that the number of the third positioning grooves is three.

[0014] The present invention is further configured such that the third positioning groove is conical.

[0015] In summary, this utility model has the following beneficial effects: The balanced spring type probe protection mechanism involved in this utility model uses screws to connect the rear cover to the mounting plate at the center position, forming a center point suspension structure. Eight tension springs are tightened at the front end of the outer cylinder, forming balanced forces in all directions. The two radial compression springs also form a balanced state. This ensures that when the protective cover collides, regardless of the direction of the collision, the protective cover will be displaced, the tension springs will be twisted and deformed, breaking the original balanced force and generating an unbalanced force. This will cause the ball head of the ball plunger to disengage from the tangential positioning position of the third positioning groove. Since the unbalanced force needs to be restored to a balanced state, it will again drive the head positioning stud back to the inclined surface of the original conical groove. Therefore, a balanced spring type probe protection mechanism is realized. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0018] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0019] Example 1

[0020] See Figure 1 As shown, the balanced spring type probe protection mechanism involved in this embodiment includes a mounting plate 1, on which a probe body 2 is suspended. The probe body 2 has a probe 3 at its head end and a tail post 4 connected to the mounting plate 1 at its tail end. The probe body 2 is provided with a protective cover. The protective cover includes an outer cylinder 5 arranged coaxially with the probe body 2. One end of the outer cylinder 5 is provided with a front cover 6 and the other end is provided with a rear cover 7. The front cover 6 has a first through hole 8 for the probe to extend out and move axially and radially inside. The rear cover 7 has a second through hole 9 for the tail post to extend out and move axially and radially inside.

[0021] The mounting plate 1 has a third through hole 10 coaxial with the outer cylinder 5. A screw 11 threadedly connected to the rear cover 7 passes through the third through hole 10. A rear elastic member 12 is fitted on the screw 11, with one end abutting against the mounting plate and the other end abutting against the rear cover. A front elastic member 13 is fitted on the probe 3, with one end abutting against the probe body and the other end abutting against the front cover. Eight adjacent side elastic members 14 with equal included angles are arranged around the probe body 2 and the outer cylinder 5.

[0022] The mounting plate 1 has three conical third positioning grooves 15 arranged in a circular array around the axis with equal intervals and included angles at one end facing the rear cover. Each of the third positioning grooves 15 is matched with a ball plunger 16 threadedly connected to the rear cover 7. The ball head of the ball plunger 16 is embedded in the third positioning groove 15.

[0023] Furthermore, both the front elastic element 13 and the rear elastic element 12 are compression springs.

[0024] Furthermore, an outer tension spring frame 19 fixed to the outer cylinder and an inner tension spring frame 20 fixed to the probe body 2 are provided between the probe body 2 and the outer cylinder 5. The side elastic element 14 is a tension spring with one end connected to the outer tension spring frame and the other end connected to the inner tension spring frame. Both the outer tension spring frame 19 and the inner tension spring frame 20 are arranged close to the front cover 6.

[0025] In this embodiment, when the protective cover is subjected to an axial impact from the front end, the front cover 6, along with the outer cylinder 5 and the rear cover 7, moves backward. The rear cover 7 retracts relative to the probe body 2. The rear elastic element 12 is moderately compressed, and the front elastic element 13 is moderately opened to buffer and dissipate force. When the protective cover is subjected to a lateral impact, the outer cylinder 5 is subjected to a radial force. The outer cylinder 5, along with the front cover 6 and the rear cover 7, moves laterally, and the protective cover moves laterally relative to the probe body 2. The tension spring near the point of impact is stretched, while the rest is compressed to buffer and dissipate force. When subjected to a combined force in both directions, not only is the rear elastic element 12 moderately compressed and the front elastic element 13 moderately opened, but the tension spring near the point of impact is also stretched, while the rest is compressed.

[0026] Specifically, under axial force, the elastic ball head of the ball plunger 16 will retract moderately into the body; under radial force, the elastic ball head of the ball plunger 16 will move laterally within the groove, returning to its original position after the force is released. Under a combination of axial and radial forces, the elastic ball head of the ball plunger 16 will not only retract moderately into the body but also move laterally within the groove, returning to its original position after the force is released.

[0027] Example 2

[0028] See Figure 1 As shown, the balanced spring type probe protection mechanism involved in this embodiment is further configured, based on embodiment 1, that the end of the mounting plate 1 facing the rear cover and the end of the rear cover 7 facing the mounting plate are respectively provided with a first positioning groove 17 for the rear elastic element to be embedded.

[0029] Furthermore, the probe body 2 facing the front cover and the front cover 6 facing the probe body are respectively provided with a second positioning groove 18 for the front elastic element to be embedded.

[0030] In this embodiment, first positioning grooves 17 are provided on the mounting plate 1 and the rear cover 7 respectively, which serve as the mounting and positioning function of the rear elastic member 12; second positioning grooves 18 are provided on the probe body 2 and the front cover 6 respectively, which serve as the mounting and positioning function of the front elastic member 13.

[0031] The balanced spring type probe protection mechanism involved in this utility model uses screws to connect the rear cover to the mounting plate at the center position, forming a center point suspension structure. Eight tension springs are tightened at the front end of the outer cylinder, forming balanced forces in all directions. The two radial compression springs also form a balanced state. This ensures that when the protective cover collides, regardless of the direction of the collision, the protective cover will be displaced, the tension springs will twist and deform, breaking the original balanced forces and generating unbalanced forces. This will cause the ball head of the ball plunger to disengage from the tangential positioning position of the third positioning groove. Since the unbalanced force needs to be restored to a balanced state, it will drive the head positioning stud back to the inclined surface of the original conical groove. Thus, a balanced spring type probe protection mechanism is realized.

[0032] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0033] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A balanced spring-type probe protection mechanism, comprising a mounting plate, on which a probe body is suspended, the probe body having a probe at its head end and a tail post connected to the mounting plate at its tail end, characterized in that: The probe body is provided with a protective cover. The protective cover includes an outer cylinder arranged coaxially with the probe body. One end of the outer cylinder is provided with a front cover and the other end is provided with a rear cover. The front cover is provided with a first through hole for the probe to extend out and move axially and radially inside. The rear cover is provided with a second through hole for the tail column to extend out and move axially and radially inside. The mounting plate has a third through hole coaxial with the outer cylinder. A screw threaded onto the rear cover passes through the third through hole. A rear elastic element is fitted on the screw, with one end abutting the mounting plate and the other end abutting the rear cover. A front elastic element is fitted on the probe, with one end abutting the probe body and the other end abutting the front cover. Several side elastic elements are arranged around the probe body and the outer cylinder. The mounting plate has at least three third positioning grooves arranged in a ring array with equal intervals around the axis at an angle at one end facing the rear cover. Each of the third positioning grooves is matched with a ball plunger threaded to the rear cover, and the ball head of the ball plunger is embedded in the third positioning groove.

2. The balanced spring type probe protection mechanism according to claim 1, characterized in that: The mounting plate has a first positioning groove at the end facing the rear cover, and the rear cover has a first positioning groove at the end facing the mounting plate, for the rear elastic element to be embedded.

3. The counterbalance spring stylus protection mechanism of claim 2, wherein: The probe body has a second positioning groove at the end facing the front cover and the front cover has a second positioning groove at the end facing the probe body, which is used to embed the front elastic element.

4. The counterbalance spring stylus protection mechanism of claim 3, wherein: Both the front and rear elastic elements are compression springs.

5. A counter spring stylus protection mechanism according to any one of claims 1-4, characterized in that: The probe body and the outer cylinder are provided with an outer tension spring frame fixed to the outer cylinder and an inner tension spring frame fixed to the probe body. The side elastic element is a tension spring with one end connected to the outer tension spring frame and the other end connected to the inner tension spring frame.

6. The counterbalance spring stylus protection mechanism of claim 5, wherein: Both the outer and inner tension spring frames are arranged close to the front cover.

7. The counterbalancing spring stylus protection mechanism of claim 1, wherein: The number of side elastic elements is eight, and the included angle between any two adjacent side elastic elements is equal.

8. The counterbalancing spring stylus protection mechanism of claim 1, wherein: The number of the third positioning grooves is three.

9. The counterbalancing spring stylus protection mechanism of claim 1, wherein: The third positioning groove is conical.

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