Telescopic probe protective sleeve

Abstract

The utility model relates to a telescopic probe protective sleeve which is mainly composed of a probe body (1), an outer protective tube (2) and an inner protective tube (3). A plurality of telescopic units (4) are arranged in the outer protection pipe, and each unit comprises an outer telescopic piece (41) and an inner telescopic piece (42) which are made of wear-resistant stainless steel. The driving mechanism (5) is used for controlling the telescopic movement of the inner protection pipe in the outer protection pipe, and stable movement is achieved through the cooperation of the guide pin (44) and the guide groove (45). A driving motor (51) is combined with a gear, a transmission shaft and a spiral guide rod, the length of the inner protection pipe is accurately adjusted, and the automation degree is improved. The front and rear sealing rings ensure that impurities are prevented from entering in the stretching and retracting process, and meanwhile, the anti-pressing assembly (18) effectively avoids deformation of the inner protection pipe through the design of a supporting rod and a spring. In addition, the heat dissipation fan (11) improves the heat dissipation effect through the power source and the controller.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of industrial endoscope probe protective sleeve, specifically to a telescopic probe protective sleeve. BACKGROUND

[0002] With the continuous development of industrial endoscopes and telescopic probe protective sleeves, existing industrial endoscope products have been widely used. However, these products still have some problems in actual use. For example, the existing industrial endoscope probe protective sleeve usually adopts a fixed length design, which leads to poor adaptability in different detection environments, increased operation complexity, and limited probe protection effect.

[0003] To solve these problems, there have been some attempts, such as adding adjustable bending units and rotating heads to the probe part to improve detection accuracy and functionality. Although these methods have improved related aspects to some extent, they still have limitations, such as the lack of a probe protective sleeve that can automatically or manually adjust its length according to actual needs to adapt to different depths and narrow detection environments.

[0004] Specifically, after searching, a kind of industrial endoscope with publication number CN207586541U is disclosed, and the publication date is July 6, 2018. This design adopts the structure of setting visible light camera and infrared thermal imaging sensor in the probe part, which can realize multi-function detection of imaging and temperature measurement, but due to the fixed length of the probe protective sleeve, the operability and protection effect of the probe are limited when facing detection environments with large depth changes. Therefore, this design cannot meet the application requirements of high length adjustability of the probe protective sleeve in high-demand scenarios.

[0005] After searching, a kind of industrial endoscope with publication number CN220356982U is disclosed, and the publication date is January 16, 2024. This product adopts the design of setting thermal imaging sensor and ultrasonic sensor on the side of the probe close to the optical lens, which has enhanced detection function, but due to the lack of length adjustment mechanism in the probe protective sleeve, it shows insufficient adaptability to different depth detection requirements in actual application. Therefore, this design cannot meet the requirements of new industrial endoscopes with high flexibility and adaptability to changing detection environments.

[0006] The above problems show that the industrial endoscope probe protective sleeve on the market cannot effectively respond to the new requirements of length adjustability and protection effect in complex detection environments. Therefore, the utility model provides a telescopic probe protective sleeve to overcome these shortcomings and provide a more flexible, efficient, and adaptable new solution to changing detection environments. UTILITY MODEL CONTENTS

[0007] The utility model provides a telescopic probe protection sleeve, solve the poor adaptability, the operation complexity increases and the probe protection effect is limited etc problem which is caused by the fixed length design of industrial endoscope probe protection sleeve in prior art.

[0008] The utility model discloses a technical scheme as follows: including the probe body, the outside of probe body is equipped with the outer protection tube, the inside of outer protection tube is provided with the inner protection tube, be provided with a plurality of telescopic units between the inner protection tube and outer protection tube, the telescopic unit includes the outer telescopic piece and the inner telescopic piece, one end of outer telescopic piece is fixedly connected on the inner wall of outer protection tube, and the other end is rotatably connected with one end of inner telescopic piece through the pin shaft, the other end of inner telescopic piece is fixedly connected on the outer wall of inner protection tube, the outer telescopic piece and inner telescopic piece are rectangular plate structure, and are made of wear -resisting stainless steel material. The outside of outer protection tube is provided with drive mechanism, and the drive mechanism is used to drive the telescopic movement of inner protection tube in the inside of outer protection tube.

[0009] Further, the drive mechanism includes a drive motor, a drive gear, a driven gear, a transmission shaft and a spiral guide rod, the outer side of the outer protection tube is fixedly connected with the drive motor, the output end of the drive motor is fixedly connected with the drive gear, the outer wall of the inner protection tube is fixedly connected with the driven gear, the driven gear is engagedly connected with the drive gear, the inside of the inner protection tube is provided with the transmission shaft, one end of the transmission shaft is fixedly connected with the driven gear, the other end is fixedly connected with the spiral guide rod, the outer side of the spiral guide rod is threadedly connected with the spiral sleeve, and the spiral sleeve is fixedly connected with the inner wall of the inner protection tube. The drive motor is connected with the external controller through the control circuit, realizing the electric telescopic function of the inner protection tube.

[0010] Further, the telescopic unit further includes a guide pin and a guide groove, one end of the inner telescopic piece is fixedly connected with the guide pin, one end of the outer telescopic piece is provided with the guide groove, the guide pin is slidably connected in the guide groove, both sides of the guide groove are provided with the stop portion, the stop portion is composed of the limiting block fixed on both sides of the outer telescopic piece, for limiting the sliding range of the guide pin, ensuring the stability and reliability of telescopic movement.

[0011] Further, the both ends of the outer protection tube are fixedly connected with the front end fixed ring and the rear end fixed ring respectively, the front end fixed ring and the rear end fixed ring are fixedly connected with the front end and the rear end of the probe body respectively, the front end of the inner protection tube is provided with the front end sealing ring between the front end fixed ring, the rear end of the inner protection tube is provided with the rear end sealing ring between the rear end fixed ring, the front end sealing ring and the rear end sealing ring are made of high-temperature-resistant, corrosion-resistant silicone rubber material, ensuring the sealing performance.

[0012] Furthermore, a protective cover is provided on the outside of the outer protective tube. The front end of the protective cover is fixedly connected to the front fixing ring, and the rear end of the protective cover is fixedly connected to the rear fixing ring. A cooling fan is provided inside the protective cover. The cooling fan is connected to an external power supply through a dedicated interface. The opening and closing of the cooling fan is controlled by an external controller. The cooling fan is a low-noise, high-efficiency axial flow fan to improve the heat dissipation effect of the probe part.

[0013] Furthermore, a front guide sleeve and a rear guide sleeve are respectively provided on the inner side of the front fixing ring and the rear fixing ring, and a front guide groove and a rear guide groove are respectively provided on the inner side of the front guide sleeve and the rear guide sleeve. A front guide block and a rear guide block are respectively fixedly connected to the outer wall of the inner protective tube. The front guide block and the rear guide block are slidably connected in the front guide groove and the rear guide groove, respectively, to ensure the stability and guiding accuracy of the inner protective tube during the extension and retraction process.

[0014] Furthermore, the inner protective tube is equipped with an anti-pressure assembly, which includes multiple support rods and multiple anti-pressure springs. One end of each support rod is fixedly connected to the inner wall of the inner protective tube, and the other end is fixedly connected to an anti-pressure spring. The other end of each anti-pressure spring is fixedly connected to a front or rear sealing ring. Under external pressure, the anti-pressure springs effectively counteract the external pressure through deformation and recovery, preventing the inner protective tube from being deformed by pressure during expansion and contraction, thus ensuring the stability of the probe.

[0015] The working principle and beneficial effects of this utility model are as follows: By setting multiple telescopic units and utilizing the movable connection between the outer and inner telescopic plates, combined with the sliding cooperation of the guide pin and guide groove, this utility model achieves smooth telescopic movement of the inner protective tube inside the outer protective tube. The drive motor, through the cooperation of the drive gear, driven gear, transmission shaft, and spiral guide rod, precisely controls the telescopic movement of the inner protective tube, making the length adjustment of the probe protective sleeve more automated and precise. The front and rear sealing rings ensure the sealing performance of the probe protective sleeve during telescopic movement, preventing external impurities from entering the probe. The anti-pressure assembly, through the design of the support rod and anti-pressure spring, effectively prevents the inner protective tube from deforming under external pressure during telescopic movement, ensuring the stability and safety of the probe. The cooling fan, controlled by an external power supply and controller, improves the heat dissipation effect of the probe section, ensuring the stability and lifespan of the probe during long-term operation. The design of the front and rear guide sleeves further improves the stability and guiding accuracy of the inner protective tube during telescopic movement, enhancing the reliability and practicality of the overall device. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the telescopic unit structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the drive mechanism structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the front and rear fixing rings of this utility model.

[0020] Figure 5 This is a schematic diagram of the protective cover and cooling fan structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the anti-pressure component structure of this utility model.

[0022] Figures 1 to 6 The components and sub-components are labeled as follows: Probe body 1, outer protective tube 2, inner protective tube 3, telescopic unit 4, outer telescopic plate 41, inner telescopic plate 42, pin 43, guide pin 44, guide groove 45, stop part 46, drive mechanism 5, drive motor 51, drive gear 52, driven gear 53, transmission shaft 54, spiral guide rod 55, spiral sleeve 56, front end fixing ring 6, rear end fixing ring 7, front end sealing ring 8, rear end sealing ring 9, protective cover 10, cooling fan 11, front end guide sleeve 12, rear end... Guide sleeve 13, front guide groove 14, rear guide groove 15, front guide block 16, rear guide block 17, anti-pressure assembly 18, support rod 181, anti-pressure spring 182, front end of front fixing ring 19, rear end of front fixing ring 20, front end of rear fixing ring 21, rear end of rear fixing ring 22, front end of front sealing ring 23, rear end of front sealing ring 24, front end of rear sealing ring 25, rear end of rear sealing ring 26, front end of protective cover 27, rear end of protective cover 28, cooling fan interface 29, cooling fan control line 30. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1This utility model provides a retractable probe protective sleeve, comprising a probe body 1, an outer protective tube 2, an inner protective tube 3, a telescopic unit 4, a drive mechanism 5, a front fixing ring 6, a rear fixing ring 7, a front sealing ring 8, a rear sealing ring 9, a protective cover 10, a cooling fan 11, a front guide sleeve 12, a rear guide sleeve 13, a front guide groove 14, a rear guide groove 15, a front guide block 16, a rear guide block 17, and an anti-pressure component 18, etc.

[0025] Please see Figure 2 and Figure 3 The telescopic unit 4 includes an outer telescopic plate 41, an inner telescopic plate 42, a pin 43, a guide pin 44, a guide groove 45, and a stop 46. One end of the outer telescopic plate 41 is fixedly connected to the inner wall of the outer protective tube 2, and the other end is movably connected to one end of the inner telescopic plate 42 via the pin 43. The other end of the inner telescopic plate 42 is fixedly connected to the outer wall of the inner protective tube 3. Both the outer telescopic plate 41 and the inner telescopic plate 42 are rectangular plate structures made of wear-resistant stainless steel. One end of the inner telescopic plate 42 is fixedly connected to the guide pin 44, and one end of the outer telescopic plate 41 is provided with a guide groove 45, in which the guide pin 44 is slidably connected. Stops 46 are provided on both sides of the guide groove 45, and the stops 46 are composed of limiting blocks fixed on both sides of the outer telescopic plate 41, used to limit the sliding range of the guide pin 44 and ensure the smoothness and reliability of the telescopic movement.

[0026] Please see Figure 3 The drive mechanism 5 includes a drive motor 51, a drive gear 52, a driven gear 53, a transmission shaft 54, a spiral guide rod 55, and a spiral sleeve 56. The drive motor 51 is fixedly connected to the outer side of the outer protective tube 2, and the output end of the drive motor 51 is fixedly connected to the drive gear 52. The driven gear 53 is fixedly connected to the outer wall of the inner protective tube 3, and the driven gear 53 meshes with the drive gear 52. The transmission shaft 54 ​​is located inside the inner protective tube 3. One end of the transmission shaft 54 ​​is fixedly connected to the driven gear 53, and the other end is fixedly connected to the spiral guide rod 55. The spiral sleeve 56 is threadedly connected to the outer side of the spiral guide rod 55 and is fixedly connected to the inner wall of the inner protective tube 3. The drive motor 51 is connected to an external controller via a control circuit to realize the electric extension and retraction function of the inner protective tube 3.

[0027] Please see Figure 4 The outer protective tube 2 has a front retaining ring 6 and a rear retaining ring 7 fixedly connected to its two ends, respectively. The front retaining ring 6 and the rear retaining ring 7 are fixedly connected to the front and rear ends of the probe body 1, respectively. A front sealing ring 8 is provided between the front end of the inner protective tube 3 and the front retaining ring 6, and a rear sealing ring 9 is provided between the rear end of the inner protective tube 3 and the rear retaining ring 7. The front sealing ring 8 and the rear sealing ring 9 are made of high-temperature resistant and corrosion-resistant silicone rubber material to ensure sealing performance.

[0028] Please see Figure 5 The outer protective tube 2 is also equipped with a protective cover 10. The front end of the protective cover 10 is fixedly connected to the front fixing ring 6, and the rear end of the protective cover 10 is fixedly connected to the rear fixing ring 7. A cooling fan 11 is installed inside the protective cover 10. The cooling fan 11 is connected to an external power supply through a dedicated interface 29. The opening and closing of the cooling fan 11 is controlled by an external controller. The cooling fan 11 is a low-noise, high-efficiency axial flow fan to improve the heat dissipation effect of the probe part.

[0029] Please see Figure 4 The inner sides of the front fixing ring 6 and the rear fixing ring 7 are respectively provided with a front guide sleeve 12 and a rear guide sleeve 13, and the inner sides of the front guide sleeve 12 and the rear guide sleeve 13 are respectively provided with a front guide groove 14 and a rear guide groove 15. The outer wall of the inner protective tube 3 is respectively fixedly connected to a front guide block 16 and a rear guide block 17, which are slidably connected in the front guide groove 14 and the rear guide groove 15 to ensure the stability and guiding accuracy of the inner protective tube 3 during the extension and retraction process.

[0030] Please see Figure 6 The inner protective tube 3 also contains a pressure-resistant assembly 18, which includes multiple support rods 181 and multiple pressure-resistant springs 182. One end of each support rod 181 is fixedly connected to the inner wall of the inner protective tube 3, and the other end is fixedly connected to a pressure-resistant spring 182. The other end of each pressure-resistant spring 182 is fixedly connected to either the front sealing ring 8 or the rear sealing ring 9. Under external pressure, the pressure-resistant springs 182 effectively counteract the external pressure through deformation and recovery, preventing the inner protective tube 3 from being deformed during expansion and contraction, thus ensuring the stability and safety of the probe.

[0031] The working principle is as follows:

[0032] In practical applications, when the length of the probe protective sleeve needs to be adjusted, an external controller sends a signal to the drive motor 51. The drive motor 51, through the meshing of the drive gear 52 and the driven gear 53, drives the transmission shaft 54 ​​to rotate, which in turn drives the spiral guide rod 55 to rotate. The threaded connection between the spiral guide rod 55 and the spiral sleeve 56 allows the inner protective tube 3 to extend and retract inside the outer protective tube 2. The sliding fit between the guide pin 44 and the guide groove 45 ensures the smooth extension and retraction of the inner protective tube 3. The front fixing ring 6 and the rear fixing ring 7, through the front sealing ring 8 and the rear sealing ring 9, ensure the sealing performance of the probe protective sleeve, preventing external impurities from entering the probe. The anti-pressure assembly 18, through the design of the support rod 181 and the anti-pressure spring 182, effectively prevents the inner protective tube 3 from deforming under external pressure during extension and retraction, ensuring the stability and safety of the probe. The cooling fan 11, controlled by an external power supply and controller, improves the heat dissipation effect of the probe section, ensuring the stability and lifespan of the probe during long-term operation. The design of the front guide sleeve 12 and the rear guide sleeve 13 further improves the stability and guiding accuracy of the inner protective tube 3 during the extension and retraction process, and enhances the reliability and practicality of the overall device.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A retractable probe protective sleeve, comprising a probe body (1), an outer protective tube (2) sleeved on the outside of the probe body (1), an inner protective tube (3) disposed inside the outer protective tube (2), and a plurality of telescopic units (4) disposed between the inner protective tube (3) and the outer protective tube (2), the telescopic unit (4) comprising an outer telescopic piece (41) and an inner telescopic piece (42), one end of the outer telescopic piece (41) being fixedly connected to the inner wall of the outer protective tube (2), and the other end being movably connected to one end of the inner telescopic piece (42) via a pin (43), the other end of the inner telescopic piece (42) being fixedly connected to the outer wall of the inner protective tube (3), both the outer telescopic piece (41) and the inner telescopic piece (42) being rectangular plate-shaped structures made of wear-resistant stainless steel, characterized in that: A drive mechanism (5) is provided on the outside of the outer protective tube (2). The drive mechanism (5) is used to drive the inner protective tube (3) to extend and retract inside the outer protective tube (2).

2. The retractable probe protective sleeve according to claim 1, characterized in that: The drive mechanism (5) includes a drive motor (51), a drive gear (52), a driven gear (53), a transmission shaft (54), and a spiral guide rod (55). The drive motor (51) is fixedly connected to the outer side of the outer protective tube (2), and the drive gear (52) is fixedly connected to the output end of the drive motor (51). The driven gear (53) is fixedly connected to the outer wall of the inner protective tube (3), and the driven gear (53) meshes with the drive gear (52). The transmission shaft (54) is provided inside the inner protective tube (3). The driven gear (53) is fixedly connected to one end of the transmission shaft (54), and the spiral guide rod (55) is fixedly connected to the other end. A spiral sleeve (56) is threadedly connected to the outer side of the spiral guide rod (55), and the spiral sleeve (56) is fixedly connected to the inner wall of the inner protective tube (3).

3. The retractable probe protective sleeve according to claim 1, characterized in that: The telescopic unit (4) also includes a guide pin (44) and a guide groove (45). One end of the inner telescopic piece (42) is fixedly connected to the guide pin (44), and one end of the outer telescopic piece (41) is provided with a guide groove (45). The guide pin (44) is slidably connected in the guide groove (45). Stops (46) are provided on both sides of the guide groove (45). The stops (46) are composed of limiting blocks fixed on both sides of the outer telescopic piece (41).

4. The retractable probe protective sleeve according to claim 1, characterized in that: The outer protective tube (2) is fixedly connected to a front fixing ring (6) and a rear fixing ring (7) at both ends. The front fixing ring (6) and the rear fixing ring (7) are fixedly connected to the front and rear ends of the probe body (1) respectively. A front sealing ring (8) is provided between the front end of the inner protective tube (3) and the front fixing ring (6). A rear sealing ring (9) is provided between the rear end of the inner protective tube (3) and the rear fixing ring (7). The front sealing ring (8) and the rear sealing ring (9) are made of high temperature resistant and corrosion resistant silicone rubber material.

5. A retractable probe protective sleeve according to claim 1, characterized in that: The outer protective tube (2) is also provided with a protective cover (10). The front end of the protective cover (10) is fixedly connected to the front fixing ring (6), and the rear end of the protective cover (10) is fixedly connected to the rear fixing ring (7). A cooling fan (11) is provided inside the protective cover (10). The cooling fan (11) is connected to an external power supply through a dedicated interface (29). The opening and closing of the cooling fan (11) is controlled by an external controller.

6. The retractable probe protective sleeve according to claim 1, characterized in that: The inner protective tube (3) is also provided with an anti-pressure component (18). The anti-pressure component (18) includes multiple support rods (181) and multiple anti-pressure springs (182). One end of the support rod (181) is fixedly connected to the inner wall of the inner protective tube (3), and the other end is fixedly connected to the anti-pressure spring (182). The other end of the anti-pressure spring (182) is fixedly connected to the front sealing ring (8) or the rear sealing ring (9).

7. A retractable probe protective sleeve according to claim 4, characterized in that: The front-end fixing ring (6) and the rear-end fixing ring (7) are respectively provided with a front-end guide sleeve (12) and a rear-end guide sleeve (13). The front-end guide sleeve (12) and the rear-end guide sleeve (13) are respectively provided with a front-end guide groove (14) and a rear-end guide groove (15). The outer wall of the inner protective tube (3) is respectively fixedly connected with a front-end guide block (16) and a rear-end guide block (17). The front-end guide block (16) and the rear-end guide block (17) are respectively slidably connected in the front-end guide groove (14) and the rear-end guide groove (15).

8. A retractable probe protective sleeve according to claim 2, characterized in that: The drive motor (51) is connected to an external controller via a control circuit to realize the electric extension and retraction function of the inner protective tube (3).

9. A retractable probe protective sleeve according to claim 5, characterized in that: The cooling fan (11) is a low-noise, high-efficiency axial fan.

10. A retractable probe protective sleeve according to claim 6, characterized in that: The anti-pressure spring (182) can effectively counteract external pressure by deforming and recovering when the inner protective tube (3) is subjected to external pressure, and prevent the inner protective tube (3) from being deformed by pressure during the expansion and contraction process.

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