A crash protection structure for a probe

Abstract

The utility model discloses a kind of anti-collision structures of protection measuring head, it is related to gauge block comparator field, the technical scheme of the utility model includes measuring head seat, vertical linear module, pedestal, measuring head, inner shield and outer shield;The measuring head seat is provided with measuring head and inner shield, the measuring head is located the inside of the inner shield;The outer shield is set to the outer portion of the inner shield, stroke limiting piece is set between the inner shield and the outer shield;The inner shield is correspondingly provided with trigger switch downwards the outer shield, the trigger switch is used to control the start-stop of the vertical linear module, the outer shield is slid upwards relative to inner shield, will touch the limit switch, the limit switch stops the vertical linear module. By setting outer shield, inner shield and limit switch, whether with gauge block collision can be very sensitive detection, and then avoid measuring head and gauge block collision.

Description

Technical Field

[0001] This utility model relates to the field of gauge block comparators, and in particular to an anti-collision structure for protecting the probe. Background Technology

[0002] A gauge block comparator is a measuring instrument used to compare the lengths of gauge blocks. Current related solutions include a semi-automatic gauge block comparator disclosed in patent document CN120141373A, which achieves measurement and comparison of gauge blocks by having a probe contact the gauge blocks downwards.

[0003] However, if the probe moves the wrong distance during the contact process with the gauge block, it may collide with the gauge block and cause damage to it. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an anti-collision structure for protecting the probe. By setting an outer protective cover, an inner protective cover, and a limit switch, it can very sensitively detect whether there is a collision with the gauge block, thereby avoiding collision between the probe and the gauge block.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an anti-collision structure for protecting the probe, including a probe base, a vertical linear module, a base, a probe, an inner protective cover and an outer protective cover;

[0006] The probe holder is connected to the base via the vertical linear module;

[0007] The probe holder is provided with a probe and an inner protective cover, and the probe is located inside the inner protective cover;

[0008] The outer cover is fitted over the inner cover, and the outer cover slides vertically relative to the inner cover. A travel limiter is provided between the inner cover and the outer cover.

[0009] The lower parts of the inner and outer protective covers are respectively provided with windows for the probe to extend downwards;

[0010] The inner cover is provided with a trigger switch facing downwards relative to the outer cover. The trigger switch is used to control the start and stop of the vertical linear module. When the outer cover slides upwards relative to the inner cover, it will touch the limit switch, and the limit switch will shut down the vertical linear module.

[0011] The outer and inner protective covers are used to protect the probe and prevent it from colliding directly with the object being measured.

[0012] Before use, the outer cover slides relative to the inner cover, and there is a travel limit component between them. Therefore, the outer cover will be located at the lowest limit of the travel limit component relative to the inner cover.

[0013] During use, driven by the vertical linear module, the probe moves downward with the probe holder and approaches the object being measured. During this process, the outer and inner protective covers will move downward together with the probe holder.

[0014] Since the outer shield is located outside the inner shield, and the inner shield is located outside the probe, the lower surface area of ​​the outer shield is significantly larger than that of the probe. Therefore, it is more likely to come into contact with the object being measured. In other words, the outer shield is more likely to come into contact with the non-measuring area of ​​the object being measured. When the outer shield comes into contact with the gauge block, the outer shield moves upward relative to the inner shield within the range of the travel limit device until it reaches the top of the travel limit device. During this process, the outer shield approaches the inner shield, and the outer shield will trigger the limit switch. The limit switch shuts off the vertical linear module and stops the probe from continuing to move downward, thus preventing the probe from colliding with the gauge block.

[0015] Since the limit switch is triggered by the proximity of the outer and inner protective covers, any collision occurring on the underside of the outer protective cover can trigger the limit switch, significantly improving the detection range of the limit switch and making the early warning effect more sensitive.

[0016] Preferably, the vertical linear module includes a slide rail portion and a moving portion that are adapted to each other. The slide rail portion is vertically fixed relative to the base, and the probe holder is disposed on the moving portion. This facilitates the guiding and driving of the probe and probe holder.

[0017] Preferably, the probe holder is provided with several extension rods pointing downwards, and the lower ends of the extension rods are connected to the inner bottom of the inner protective cover. This improves the fixing strength of the inner protective cover.

[0018] Preferably, the travel limiting component includes a strip-shaped guide hole and a guide support rod. The strip-shaped guide hole is vertically disposed on the side wall of the outer protective cover. The inner end of the guide support rod is fixed to the inner protective cover, and the outer end of the guide support rod extends to the strip-shaped guide hole. During the process of the outer protective cover sliding up and down relative to the inner protective cover, the outer end of the guide support rod slides up and down within the strip-shaped guide hole.

[0019] The guide support rod is adapted to the strip guide hole. On the one hand, it can guide the outer cover. On the other hand, when the guide support rod slides to the top of the strip guide hole, it can provide support.

[0020] Preferably, a guide device is provided between the outer protective cover and the base. This improves the stability of the outer protective cover sliding upwards, allowing the limit switch to more sensitively detect the relative position of the outer and inner protective covers.

[0021] Preferably, the guiding device includes a guide rail and a slider that are adapted to each other. The guide rail is vertically disposed on the base, and the slider is fixed to the outer protective cover. This facilitates stable sliding of the outer protective cover relative to the inner protective cover.

[0022] Preferably, the base is provided with a tension spring connected to the outer protective cover. This allows the outer protective cover to be lifted, thus reducing the impact force when the outer protective cover comes into contact with or collides with gauge blocks or other objects.

[0023] Preferably, the side wall of the base is provided with a hanger, and the two ends of the tension spring are respectively connected to the hanger and the outer protective cover. This facilitates the installation of the tension spring.

[0024] The beneficial effects of this utility model are:

[0025] This solution, by setting an outer protective cover, an inner protective cover, and a limit switch, can very sensitively detect whether there is a collision with the gauge block, thereby avoiding collision between the probe and the gauge block. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only five of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is one of the perspective views of an embodiment of the present utility model;

[0028] Figure 2 This is a second perspective view of an embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of the concealed outer and inner protective covers according to an embodiment of the present utility model;

[0030] Figure 4 This is a cross-sectional view of an embodiment of the present utility model;

[0031] Figure 5 The concealed outer protective cover and inner protective cover are embodiments of this utility model;

[0032] The components include: 1. Base; 2. Vertical linear module; 3. Probe base; 4. Probe; 5. Inner protective cover; 6. Outer protective cover; 7. Extension rod; 8. Strip guide hole; 9. Guide support rod; 10. Guide rail; 11. Slider; 12. Tension spring; 13. Hanger; 14. Limit switch. Detailed Implementation

[0033] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0034] Example

[0035] like Figure 1 and Figure 2 As shown, an anti-collision structure for protecting a probe includes a probe holder 3, a vertical linear module 2, a base 1, a probe 4, an inner protective cover 5, and an outer protective cover 6.

[0036] The probe base 3 is connected to the base 1 via the vertical linear module 2.

[0037] The probe holder 3 is provided with a probe 4 and an inner protective cover 5, with the probe 4 located inside the inner protective cover 5.

[0038] The outer cover 6 is fitted over the inner cover 5. The outer cover 6 slides vertically relative to the inner cover 5. A travel limiter is provided between the inner cover 5 and the outer cover 6.

[0039] Combination Figure 3 and Figure 4 As shown, the lower parts of the inner protective cover 5 and the outer protective cover 6 are respectively provided with windows for the probe 4 to extend downwards.

[0040] The inner cover 5 is provided with a trigger switch facing downwards relative to the outer cover 6. The trigger switch is used to control the start and stop of the vertical linear module 2. The outer cover 6 slides upwards relative to the inner cover 5 and touches the limit switch 14, which shuts off the vertical linear module 2.

[0041] The outer protective cover 6 and the inner protective cover 5 are used to protect the probe 4 and prevent the probe 4 from directly colliding with the object being measured;

[0042] Before use, the outer cover 6 slides relative to the inner cover 5, and a travel limiter is provided between the two. Therefore, the outer cover 6 will be located at the lowest limit of the travel limiter relative to the inner cover 5.

[0043] During use, driven by the vertical linear module 2, the probe 4 moves downward with the probe base 3 and approaches the object being measured. During this process, the outer protective cover 6 and the inner protective cover 5 will move downward together with the probe base 3.

[0044] Since the outer protective cover 6 is located outside the inner protective cover 5, and the inner protective cover 5 is located outside the probe 4, the lower surface area of ​​the outer protective cover 6 is significantly larger than that of the probe 4. Therefore, it is more likely to come into contact with the object being measured. That is, the outer protective cover 6 is more likely to come into contact with the non-measuring area of ​​the object being measured. When the outer protective cover 6 comes into contact with the gauge block, the outer protective cover 6 moves upward relative to the inner protective cover 5 within the range of the travel limit member until it reaches the top of the travel limit member. During this process, the outer protective cover 6 approaches the inner protective cover 5, and the outer protective cover 6 will trigger the limit switch 14. The limit switch 14 shuts down the vertical linear module 2 and stops the probe 4 from continuing to move downward, thus preventing the probe 4 from colliding with the gauge block.

[0045] Since the limit switch 14 is triggered by the proximity of the outer shield 6 and the inner shield 5, any collision occurring on the underside of the outer shield 6 can trigger the limit switch 14, significantly improving the detection range of the limit switch 14 and making the warning effect more sensitive.

[0046] Combination Figure 5 As shown, the vertical linear module 2 includes a sliding rail section and a moving section that are adapted to each other. The sliding rail section is vertically fixed relative to the base 1, and the probe holder 3 is disposed on the moving section. This facilitates the guiding and driving of the probe 4 and the probe holder 3.

[0047] The probe base 3 is provided with several extension rods 7 extending downwards, and the lower end of the extension rods 7 is connected to the inner bottom of the inner protective cover 5. This improves the fixing strength of the inner protective cover 5.

[0048] The travel limiting component includes a strip-shaped guide hole 8 and a guide support rod 9. The strip-shaped guide hole 8 is vertically disposed on the side wall of the outer protective cover 6. The inner end of the guide support rod 9 is fixed to the inner protective cover 5, and the outer end of the guide support rod 9 extends to the strip-shaped guide hole 8. During the process of the outer protective cover 6 sliding up and down relative to the inner protective cover 5, the outer end of the guide support rod 9 slides up and down within the strip-shaped guide hole 8.

[0049] The guide support rod 9 is adapted to the strip guide hole 8. On the one hand, it can guide the outer cover 6. On the other hand, when the guide support rod 9 slides to the uppermost end of the strip guide hole 8, it can provide support.

[0050] A guide device is provided between the outer protective cover 6 and the base 1. This improves the stability of the outer protective cover 6 as it slides upward, so that the limit switch 14 can more sensitively detect the relative position of the outer protective cover 6 and the inner protective cover 5.

[0051] The guiding device includes a guide rail 10 and a slider 11 that are adapted to each other. The guide rail 10 is vertically arranged on the base 1, and the slider 11 is fixed to the outer protective cover 6. This facilitates the stable sliding of the outer protective cover 6 relative to the inner protective cover 5.

[0052] The base 1 is provided with a tension spring 12 connected to the outer protective cover 6. The outer protective cover 6 can be lifted to avoid reducing the impact force when the outer protective cover 6 comes into contact with or collides with gauge blocks, etc.

[0053] The base 1 has a hanger 13 on its side wall, and the two ends of the tension spring 12 are respectively connected to the hanger 13 and the outer cover 6. This facilitates the installation of the tension spring 12.

[0054] The beneficial effects of this utility model are:

[0055] This solution, by setting an outer protective cover 6, an inner protective cover 5, and a limit switch 14, can very sensitively detect whether there is a collision with the gauge block, thereby avoiding collision between the probe 4 and the gauge block.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A collision-resistant structure for protecting a probe, characterized in that, It includes a probe holder (3), a vertical linear module (2), a base (1), a probe (4), an inner protective cover (5), and an outer protective cover (6); The probe base (3) is connected to the base (1) through the vertical linear module (2); The probe holder (3) is provided with a probe (4) and an inner protective cover (5), and the probe (4) is located inside the inner protective cover (5); The outer cover (6) is sleeved on the outside of the inner cover (5). The outer cover (6) slides vertically relative to the inner cover (5). A travel limiter is provided between the inner cover (5) and the outer cover (6). The lower parts of the inner protective cover (5) and the outer protective cover (6) are respectively provided with windows for the probe (4) to extend downwards; The inner cover (5) is provided with a trigger switch facing downwards relative to the outer cover (6). The trigger switch is used to control the start and stop of the vertical linear module (2). The outer cover (6) slides upwards relative to the inner cover (5) and touches the limit switch (14). The limit switch (14) shuts down the vertical linear module (2).

2. The anti-collision structure for protecting the probe according to claim 1, characterized in that: The vertical linear module (2) includes a slide rail and a moving part that are adapted to each other. The slide rail is vertically fixed relative to the base (1), and the probe seat (3) is disposed on the moving part.

3. The anti-collision structure for protecting the probe according to claim 1, characterized in that: The probe base (3) is provided with several extension rods (7) downwards, and the lower end of the extension rods (7) is connected to the inner bottom of the inner cover (5).

4. The anti-collision structure for protecting the probe according to claim 1, characterized in that: The travel limiting component includes a strip-shaped guide hole (8) and a guide support rod (9). The strip-shaped guide hole (8) is vertically disposed on the side wall of the outer cover (6). The inner end of the guide support rod (9) is fixed to the inner cover (5). The outer end of the guide support rod (9) extends to the strip-shaped guide hole (8). During the process of the outer cover (6) sliding up and down relative to the inner cover (5), the outer end of the guide support rod (9) slides up and down in the strip-shaped guide hole (8).

5. The anti-collision structure for protecting the probe according to claim 1, characterized in that: A guide device is provided between the outer protective cover (6) and the base (1).

6. The anti-collision structure for protecting the probe according to claim 5, characterized in that: The guiding device includes a guide rail (10) and a slider (11) that are adapted to each other. The guide rail (10) is vertically arranged on the base (1), and the slider (11) is fixed to the outer cover (6).

7. The anti-collision structure for protecting the probe according to claim 1, characterized in that: The base (1) is provided with a tension spring (12) that is connected to the outer cover (6) downwards.

8. The anti-collision structure for protecting the probe according to claim 7, characterized in that: The base (1) has a hanger (13) on its side wall, and the two ends of the tension spring (12) are respectively connected to the hanger (13) and the outer cover (6).

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