A photoelectric measuring instrument probe anti-collision protection structure
The design of the anti-collision protection mechanism, including the snap ring, buffer cover, telescopic rod assembly, and return spring assembly, solves the problem of damage to the photoelectric measurement probe under high-speed impact, achieving efficient protection of the probe and ensuring measurement accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU CHANGSHUNSHENG PRECISION TECHNOLOGY CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-06-26
AI Technical Summary
Existing photoelectric measurement probes' rubber buffer rings are unable to effectively absorb and disperse impact forces under high-speed impacts, leading to probe damage. Furthermore, improper design may result in the inability to cover critical parts, increasing the risk of damage.
The probe employs an anti-collision protection mechanism, which combines a snap-fit ring, a buffer cover, a telescopic rod assembly, a return spring assembly, and a rubber ball. Through snap-fit and bolt connections, the probe's anti-collision capability is enhanced, and the return spring assembly quickly restores the probe to its original shape, ensuring measurement accuracy and stability.
It significantly enhances the probe's impact resistance, extends its service life, ensures measurement accuracy and stability, and also has good sealing performance, making it easy to assemble and maintain.
Smart Images

Figure CN224416136U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-collision technology for measuring instrument probes, and in particular to an anti-collision protection structure for photoelectric measuring instrument probes. Background Technology
[0002] A photoelectric measurement probe is a precision measuring device based on optical sensing technology, widely used in various fields such as industry, manufacturing, and scientific research. The probe mainly consists of a light source, a photoelectric sensor, and a signal processing circuit. Its working principle involves the reflection, transmission, and scattering characteristics of light, as well as the photoelectric effect. When a light beam emitted by the light source illuminates a target object, the beam is reflected, scattered, or transmitted after passing through the object. The photoelectric sensor receives these optical signals and converts them into electrical signals. The signal processing circuit then amplifies, filters, and decodes the electrical signals to obtain measurement parameters related to the target object.
[0003] The structural composition of a photoelectric measurement probe may vary depending on the application scenario and measurement requirements, but it typically includes the following core components: a transmitter, responsible for emitting a light beam, usually using a laser light source, as it can produce a thin beam, thereby improving measurement accuracy; a receiver, responsible for receiving reflected light signals and converting them into electrical signals for processing; and an optical system, containing optical elements such as lenses and mirrors, used to focus, guide, and calibrate the light beam, ensuring that the light beam accurately illuminates the target object and receives the reflected light signals.
[0004] As a high-precision, non-contact measuring tool, photoelectric measuring probes have broad application prospects and development potential. However, in practical applications, although the probe tip is usually connected to a protective cover with a rubber buffer ring installed on it, the latter has limitations in providing cushioning protection and reducing the impact force caused by accidental drops or collisions. When encountering a large impact force, the rubber buffer ring may not be able to effectively absorb and disperse the impact energy, thus damaging the probe.
[0005] Although rubber materials possess certain elasticity and damping properties, their deformation and recovery capabilities may be insufficient to withstand impact forces under high-speed collision conditions, resulting in poor impact protection. Furthermore, improperly designed rubber buffer rings may fail to adequately cover critical areas of the probe, thereby increasing the risk of damage. Utility Model Content
[0006] The main objective of this invention is to provide an anti-collision protection structure for the probe of a photoelectric measuring instrument, which can effectively solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A collision protection structure for a photoelectric measuring instrument probe includes a detection probe and a measuring instrument wire. The measuring instrument wire is located at the tail end of the detection probe, and electrical signals are transmitted through the measuring instrument wire.
[0009] The front end of the detection probe is connected to an anti-collision protection mechanism via a snap-fit connection, which provides buffer protection for the front end of the detection probe.
[0010] The anti-collision protection mechanism includes a snap-fit ring and a buffer protective cover. The front edge of the detection probe has a snap-fit interface, through which the snap-fit ring is connected. The front edge of the snap-fit ring has an inner connecting ring, and the buffer protective cover is connected to the inner connecting ring. The inner end of the inner connecting ring has multiple telescopic rod assemblies, and a return spring assembly is fiber-connected to the telescopic rod assembly. The outer end of the telescopic rod assembly is connected to a rubber ball. The anti-collision protection operation of the detection probe is achieved through the combined action of the telescopic buffer mechanism, the buffer protective cover, and the rubber ball.
[0011] As an optional solution of this application, the snap ring and the inner end connecting ring are connected by bolts, and a sealing ring is provided at the connection between the snap ring and the inner end connecting ring. The side wall of the inner end connecting ring is provided with a recessed groove, and the groove wall is provided with a round hole.
[0012] As an optional solution of this application, the cross-section of the buffer protective cover is U-shaped, the overall design of the buffer protective cover is a cylindrical ring, the outer end of the buffer protective cover is a ring, the side wall of the buffer protective cover is provided with a mating hole, the mating hole is aligned with the circular hole on the inner end connecting ring, and the buffer protective cover is fixed to the inner end connecting ring with bolts. The buffer protective cover and the inner end connecting ring are also connected by wrapping iron wire.
[0013] As an optional solution of this application, the telescopic rod assembly includes a telescopic base tube and a telescopic rod. The telescopic base tube is threadedly connected to the inner end connecting ring. The telescopic rod is inserted into the telescopic base tube. The inner end of the telescopic rod is a limiting ring, which is placed in the limiting base tube. The outer end of the limiting base tube is threadedly connected to a retaining ring to prevent the telescopic rod from falling off.
[0014] As an optional solution of this application, the reset spring assembly includes a reset spring and a limiting ring. The two ends of the reset spring are connected to the limiting ring, which is sleeved on the telescopic rod of the telescopic rod assembly. The limiting ring is restricted by the telescopic base tube and the rubber ball.
[0015] As an optional solution of this application, the rubber ball has a cavity inside and a circular hole on its side wall. The telescopic rod of the telescopic rod assembly is inserted into the circular hole and connected to it by an adhesive.
[0016] As an optional solution in this application, multiple telescopic rod assemblies and return spring assemblies are arranged in a ring on the inner end connecting ring.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] The anti-collision protection mechanism significantly enhances the detection probe's impact resistance. Through the combined action of the buffer protective cover, telescopic rod assembly, return spring assembly, and rubber ball, it effectively absorbs the impact force generated by collisions, preventing damage to the detection probe and thus extending its service life.
[0019] The anti-collision protection mechanism ensures that the detection probe can quickly return to its original shape after a collision. The reset spring assembly allows the telescopic rod assembly to quickly return to its original position after a collision, ensuring the normal operation of the measuring instrument and improving measurement accuracy and stability.
[0020] The anti-collision protection mechanism also boasts excellent sealing performance. Sealing rings are installed at the connection points of the snap-fit ring and the inner end connecting ring, preventing dust and moisture from entering the internal structure. This ensures the stability and lifespan of the internal components, further improving the reliability and durability of the equipment. The anti-collision protection mechanism is designed for easy assembly and maintenance. The various components are securely connected via snap-fit and bolt connections, while wire wrapping further enhances the strength of the connections. This design not only makes the anti-collision protection mechanism easy to assemble and disassemble but also facilitates daily maintenance and replacement, reducing maintenance costs. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a side view of the overall structure of this utility model;
[0023] Figure 3 This is an exploded view of the overall structure of this utility model;
[0024] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.
[0025] In the diagram: 1. Detection probe; 2. Measuring instrument wires; 3. Anti-collision protection mechanism; 31. Snap-in interface; 32. Snap-in ring; 33. Buffer protective cover; 34. Docking hole; 35. Inner end connecting ring; 36. Telescopic rod assembly; 37. Return spring assembly; 38. Rubber ball. Detailed Implementation
[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0027] like Figure 1 - Figure 4 As shown, a collision protection structure for a photoelectric measuring instrument probe is designed to effectively protect the probe during use and prevent damage from collisions. The structure mainly comprises the following parts: a detection probe 1, a measuring instrument lead wire 2, and a collision protection mechanism 3. The measuring instrument lead wire 2 is located at the tail end of the detection probe 1, and electrical signals are transmitted through it, ensuring that measurement data is accurately transmitted to the main body of the measuring instrument.
[0028] The front end of the detection probe 1 is connected to an anti-collision protection mechanism 3 via a snap-fit connection. The main function of this mechanism is to prevent damage to the front end of the detection probe 1 upon impact. The anti-collision protection mechanism 3 consists of two main parts: a snap-fit ring 32 and a buffer protective cover 33. A snap-fit interface 31 is provided on the front edge of the detection probe 1, through which the snap-fit ring 32 is connected. The front edge of the snap-fit ring 32 has an inner connecting ring 35, and the buffer protective cover 33 is connected at the inner connecting ring 35, thereby achieving buffer protection for the front end of the detection probe 1.
[0029] To further enhance the anti-collision protection effect, multiple telescopic rod assemblies 36 are provided at the inner end of the inner connecting ring 35. A return spring assembly 37 is fiber-connected to the telescopic rod assembly 36, and a rubber ball 38 is connected to the outer end of the telescopic rod assembly 36. Through the combined action of the telescopic buffer mechanism, the buffer protective cover 33, and the rubber ball 38, the anti-collision protection operation of the detection probe 1 is achieved. This design not only absorbs the impact force generated by a collision but also quickly returns to its original shape after a collision, ensuring the normal operation of the measuring instrument.
[0030] The snap-fit ring 32 and the inner end connecting ring 35 are connected by bolts, ensuring a secure connection. A sealing ring is provided at the connection point between the snap-fit ring 32 and the inner end connecting ring 35 to prevent dust and moisture from entering, ensuring the stability and service life of the internal structure. A recessed groove is formed on the side wall of the inner end connecting ring 35, and the groove wall has a round hole for fixing the telescopic rod assembly 36.
[0031] The buffer cover 33 has a U-shaped cross-section and an overall cylindrical design with a circular outer end. The side wall has mating holes 34. These holes align with the circular holes on the inner connecting ring 35, and bolts are used to secure the buffer cover 33 to the inner connecting ring 35, ensuring the stability and reliability of the buffer cover 33. To further enhance the connection's strength, the buffer cover 33 and the inner connecting ring 35 are also connected by wire wrapping.
[0032] The telescopic pole assembly 36 includes a telescopic base tube and a telescopic pole. The telescopic base tube is threadedly connected to an inner end connecting ring 35, and the telescopic pole is inserted into the telescopic base tube. The inner end of the telescopic pole is a limiting ring, which is placed inside the limiting base tube. The outer end of the limiting base tube is threadedly connected to a retaining ring to prevent the telescopic pole from falling out. This design ensures that the telescopic pole assembly 36 can freely extend and retract upon impact without losing its position.
[0033] The return spring assembly 37 includes a return spring and a limiting ring. The two ends of the return spring are connected to the limiting ring, which is fitted onto the telescopic rod of the telescopic rod assembly 36. The limiting ring is secured by the telescopic base tube and the rubber ball 38. This design ensures that the telescopic rod assembly 36 can quickly return to its original position after a collision, guaranteeing the normal operation of the measuring instrument.
[0034] The rubber ball 38 has an internal cavity and a circular hole on its side wall. The telescopic rod of the telescopic rod assembly 36 is inserted into the circular hole and connected to it by adhesive. This design not only enhances the cushioning effect but also ensures that the rubber ball 38 can quickly return to its original shape after impact, avoiding permanent deformation.
[0035] Multiple telescopic rod assemblies 36 and reset spring assemblies 37 are arranged in a ring on the inner end connecting ring 35. This design ensures that the anti-collision protection mechanism 3 can provide uniform protection in all directions, thereby comprehensively protecting the safety of the detection probe 1.
[0036] Prepare the detection probe 1, ensuring the locking interface 31 at the front edge is intact. Next, take the anti-collision protection mechanism 3, where the locking ring 32 engages with the front end of the detection probe 1 via the locking interface 31, ensuring a secure engagement. Then, connect the inner connecting ring 35 to the locking ring 32 with bolts, paying attention to the installation of the sealing ring during the connection process to prevent dust and moisture from entering. Fix the telescopic rod assembly 36 through the round hole in the recessed groove on the side wall of the inner connecting ring 35, ensuring the telescopic rod assembly 36 can extend and retract freely. Next, place the limiting ring of the return spring assembly 37 onto the telescopic rod of the telescopic rod assembly 36, and restrict it using the telescopic base tube and rubber ball 38. The rubber ball 38 is connected to the telescopic rod of the telescopic rod assembly 36 with adhesive, ensuring its stability. Finally, align the mating hole 34 of the buffer protective cover 33 with the round hole on the inner connecting ring 35, fix it with bolts, and further enhance the connection's strength by wrapping it with wire. At this point, the anti-collision protection structure for the probe of the photoelectric measuring instrument is assembled.
[0037] When using the photoelectric measuring instrument, first install the assembled probe anti-collision protection structure onto the instrument's detection probe 1. Ensure the measuring instrument's wires 2 are connected correctly and the electrical signal transmission is normal. When the measuring instrument is working, the front end of the detection probe 1 will encounter various collisions. At this time, the anti-collision protection mechanism 3 begins to function. The buffer protective cover 33 first contacts the colliding object, providing initial cushioning. Simultaneously, the telescopic rod assembly 36 extends and retracts under the impact force, absorbing the impact. The return spring assembly 37 resets the telescopic rod assembly 36 during its extension and retraction, ensuring that the telescopic rod assembly 36 quickly returns to its original position after a collision. The rubber ball 38 not only enhances the cushioning effect but also prevents permanent deformation. Through the combined action of the anti-collision protection mechanism 3, comprehensive protection of the detection probe 1 is achieved, ensuring the normal operation of the measuring instrument. During use, regularly check the stability and integrity of the anti-collision protection structure to ensure it maintains its good anti-collision effect at all times.
[0038] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A photoelectric measuring instrument probe anti-collision protection structure, comprising a detection probe (1) and a measuring instrument lead wire (2), the measuring instrument lead wire (2) is located at the tail end of the detection probe (1), and transmission of an electrical signal is realized through the measuring instrument lead wire (2), characterized in that: The front end of the detection probe (1) is connected to an anti-collision protection mechanism (3) by a snap-fit method, and the anti-collision protection mechanism (3) prevents the front end of the detection probe (1) from being buffered and protected. The anti-collision protection mechanism (3) includes a snap ring (32) and a buffer protective cover (33). The front edge of the detection probe (1) is provided with a snap interface (31), and the snap ring (32) is connected through the snap interface (31). The front edge of the snap ring (32) is provided with an inner end connecting ring (35). The buffer protective cover (33) is connected to the inner end connecting ring (35). The inner end of the inner end connecting ring (35) is provided with multiple telescopic rod assemblies (36). The telescopic rod assembly (36) is fiber connected to a reset spring assembly (37). The outer end of the telescopic rod assembly (36) is connected to a rubber ball (38). The anti-collision protection operation of the detection probe (1) is realized through the joint action of the telescopic buffer mechanism, the buffer protective cover (33), and the rubber ball (38).
2. The anti-collision protection structure of a photoelectric measuring instrument probe according to claim 1, characterized in that: The snap ring (32) and the inner end connecting ring (35) are connected by bolts, and a sealing ring is provided at the connection between the snap ring (32) and the inner end connecting ring (35). The side wall of the inner end connecting ring (35) is provided with a recessed groove, and the groove wall is provided with a round hole.
3. The anti-collision protection structure of a photoelectric measuring instrument probe according to claim 2, characterized in that: The buffer cover (33) has a U-shaped cross-section and a cylindrical overall design. The outer end of the buffer cover (33) is a ring. The side wall of the buffer cover (33) has a docking hole (34) which is aligned with the round hole on the inner end connecting ring (35). The buffer cover (33) is fixed to the inner end connecting ring (35) with bolts. The buffer cover (33) and the inner end connecting ring (35) are also connected by wire wrapping.
4. The anti-collision protection structure of a photoelectric measuring instrument probe according to claim 3, characterized in that: The telescopic rod assembly (36) includes a telescopic base tube and a telescopic rod. The telescopic base tube is threadedly connected to the inner end connecting ring (35). The telescopic rod is inserted into the telescopic base tube. The inner end of the telescopic rod is a limiting ring. The limiting ring is placed in the limiting base tube. The outer end of the limiting base tube is threadedly connected to a retaining ring to prevent the telescopic rod from falling off.
5. The anti-collision protection structure of a photoelectric measuring instrument probe according to claim 4, characterized in that: The reset spring assembly (37) includes a reset spring and a limiting ring. The two ends of the reset spring are connected to the limiting ring, which is sleeved on the telescopic rod of the telescopic rod assembly (36). The limiting ring is restricted by the telescopic base tube and the rubber ball (38).
6. The anti-collision protection structure of a photoelectric measuring instrument probe according to claim 5, characterized in that: The rubber ball (38) has a cavity inside and a circular hole on its side wall. The telescopic rod of the telescopic rod assembly (36) is inserted into the circular hole and connected to it by an adhesive.
7. The anti-collision protection structure of a photoelectric measuring instrument probe according to claim 6, characterized in that: Multiple telescopic rod assemblies (36) and return spring assemblies (37) are arranged in a ring on the inner end connecting ring (35).