Explosion-proof laser radar

Abstract

The utility model discloses an explosion-proof laser radar, which comprises an upper shell, a lower shell, an explosion-proof cover, a laser radar and a cable entry device, the explosion-proof cover is a cylindrical transparent ceramic cover, and the lower shell and the upper shell are respectively connected with the upper end and the lower end of the explosion-proof cover in a sealing manner. The laser radar is installed in a cavity formed by the upper shell, the explosion-proof cover and the lower shell. And the cable lead-in device is arranged on the lower shell. The explosion-proof laser radar provided by the utility model is good in sealing performance and high in precision, and can completely meet the requirement of precise navigation of intelligent carrying equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of radars, and more specifically, to an explosion-proof laser radar. Background Art

[0002] At present, with the rapid development of manufacturing and logistics industries at home and abroad, the demand for intelligent handling is increasing. The demand for explosion-proof intelligent handling equipment in industries such as petroleum, chemical, pharmaceutical, brewing, and food processing is also increasing. These handling equipment are engaged in the handling of flammable and explosive materials in hazardous places with explosive gases and dust. Explosion-proof laser radar is a very advanced environmental perception sensor. Accurate explosion-proof laser radar is the basis for these devices to achieve high-precision positioning, and it has very important applications in explosion-proof intelligent vehicle systems.

[0003] The accuracy of ordinary laser radar can meet the navigation accuracy requirements of intelligent handling equipment, but its shell material is PP polymer material, which does not meet the explosion-proof requirements. The explosion-proof type of explosion-proof laser radar generally adopts flameproof type. The existing explosion-proof laser radar uses tempered glass to make laser radar explosion-proof cover, and its light refractive index is only about 1.5, and the light transmittance is only 80%, which greatly reduces the accuracy of explosion-proof laser radar and cannot meet the requirements of precise navigation of intelligent handling equipment. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an explosion-proof laser radar with high precision, which can fully meet the requirements of precise navigation of intelligent handling equipment.

[0005] The technical solution provided by the utility model is as follows:

[0006] An explosion-proof laser radar,

[0007] It includes upper shell, lower shell, explosion-proof cover, laser radar and cable entry device.

[0008] The explosion-proof cover is a cylindrical transparent ceramic cover, the lower shell and the upper shell are sealed and connected to the upper and lower ends of the explosion-proof cover respectively, and the laser radar is installed in the cavity formed by the upper shell, the explosion-proof cover and the lower shell;

[0009] The cable entry device is mounted on the lower housing.

[0010] Wherein, the upper shell and the lower shell are connected by fixing bolts.

[0011] Among them, the upper shell and the lower shell are connected by four vertical fixing bolts, the axis of the fixing bolts is parallel to the axis of the explosion-proof cover, and the four fixing bolts are symmetrically distributed around the laser radar.

[0012] Wherein, a circle of first annular groove is provided on the lower surface of the upper shell, and the upper end of the explosion-proof cover is sealed and connected to the first annular groove.

[0013] Wherein, a circle of second annular groove is provided on the upper surface of the lower shell, and the lower end of the explosion-proof cover is sealed and connected to the second annular groove.

[0014] Wherein, the upper shell is made of one of aluminum alloy, cast steel or cast iron.

[0015] Wherein, the lower shell is made of one of aluminum alloy, cast steel or cast iron.

[0016] Wherein, the thickness of the upper shell and the lower shell is greater than 5 mm.

[0017] Wherein, the upper end of the explosion-proof cover is connected to the first annular groove by means of sealant, and the lower end of the explosion-proof cover is connected to the second annular groove by means of sealant.

[0018] The explosion-proof cover is made of a transparent ceramic material with a light refractive index of 1.762-1.770 and a light transmittance of more than 93%.

[0019] Compared with the prior art, the explosion-proof laser radar provided by the utility model includes an upper shell, a lower shell, an explosion-proof cover, a laser radar and a cable introduction device, wherein the explosion-proof cover is a cylindrical transparent ceramic cover, the lower shell and the upper shell are respectively sealed and connected to the upper and lower ends of the explosion-proof cover, the laser radar is installed in the cavity formed by the upper shell, the explosion-proof cover and the lower shell; the cable introduction device is installed on the lower shell. The explosion-proof laser radar of the utility model has good sealing performance and high precision, and can fully meet the requirements of precise navigation of intelligent handling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of the explosion-proof laser radar of the utility model;

[0022] Figure 2 This is a top view of the utility model explosion-proof laser radar with the upper shell removed;

[0023] In the figure, there are an upper shell 1, a lower shell 2, an explosion-proof cover 3, a laser radar 4, a cable introduction device 5, a fixing bolt 6, a first annular groove 11, and a second annular groove 21. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the utility model, the technical solutions in the embodiments of the utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0028] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present utility model can be implemented, so they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present utility model without affecting the effects and purposes that can be achieved by the present utility model.

[0029] The embodiments of the present invention are written in a progressive manner.

[0030] like Figure 1 and Figure 2 As shown, an explosion-proof laser radar 4,

[0031] It includes an upper shell 1, a lower shell 2, an explosion-proof cover 3, a laser radar 4 and a cable entry device 5.

[0032] The explosion-proof cover 3 is a cylindrical transparent ceramic cover, the lower shell 2 and the upper shell 1 are sealed and connected to the upper and lower ends of the explosion-proof cover 3 respectively, and the laser radar 4 is installed in the cavity formed by the upper shell 1, the explosion-proof cover 3 and the lower shell 2;

[0033] The cable entry device 5 is mounted on the lower housing 2 .

[0034] Compared with the prior art, the upper shell 1 has four windows and four flat tempered glasses, and the window frame reflects the laser, thereby reducing the accuracy of the laser radar 4. The explosion-proof cover 3 of the utility model is made of transparent ceramic material and is cylindrical, which can effectively reduce the negative impact of the window frame on the laser radar 4. The explosion-proof laser radar 4 of the utility model can be prepared into an explosion-proof type that meets the explosion-proof type of GB / T3836.1-2021 and GB / T3836.2-2021 standards.

[0035] The upper shell 1 and the lower shell 2 of the utility model are connected by fixing bolts 6. The fixing bolts 6 are at the same height as the explosion-proof cover 3, and the upper and lower ends are respectively connected to the upper shell 1 and the lower shell 2, which reinforce the upper shell 1 and the lower shell 2 and increase the explosion-proof performance of the explosion-proof laser radar 4.

[0036] As a preferred embodiment, the upper shell 1 and the lower shell 2 of the utility model are connected by four vertical fixing bolts 6, the axis of the fixing bolts 6 is parallel to the axis of the explosion-proof cover 3, and the four fixing bolts 6 are symmetrically distributed around the laser radar 4. The fixing bolts 6 can be high-strength M8 bolts, and the four fixing bolts 6 are symmetrically distributed around the laser radar 4, so that the forces on the upper shell 1 and the lower shell 2 are more uniform, the entire explosion-proof laser radar 4 is more stably tightened, and the explosion-proof performance is better.

[0037] The lower surface of the upper shell 1 of the utility model is provided with a circle of first annular grooves 11, and the upper end of the explosion-proof cover 3 is sealed and connected to the first annular grooves 11. The first annular grooves 11 are in contact with both the inner wall and the outer wall of the upper end of the explosion-proof cover 3. This design can increase the contact surface between the explosion-proof cover 3 and the upper shell 1, making it easier to achieve a sealed connection. At the same time, the first annular grooves 11 can position the explosion-proof cover 3, making the explosion-proof laser radar 4 more stable and easier to install.

[0038] Similarly, a circle of second annular groove 21 is provided on the upper surface of the lower shell 2, and the lower end of the explosion-proof cover 3 is sealed and connected to the second annular groove 21. Increasing the contact surface between the explosion-proof cover 3 and the upper shell 1 further increases the stability of the explosion-proof laser radar 4.

[0039] As an optional embodiment, the upper shell 1 of the utility model is made of a material selected from aluminum alloy, cast steel or cast iron, and can withstand a test pressure of 1.5 to 2 MPa. This material is used in the upper shell 1 of the utility model, which can greatly ensure the explosion-proof performance of the explosion-proof laser radar 4.

[0040] Similarly, as an optional implementation, the lower shell 2 of the present invention is also made of a material selected from the group consisting of aluminum alloy, cast steel, and cast iron.

[0041] As an optional implementation, the thickness of the upper shell 1 and the lower shell 2 of the present invention is greater than 5 mm.

[0042] As an optional embodiment, the upper end of the explosion-proof cover 3 of the utility model is connected to the first annular groove 11 by a sealant. At the same time, the thickness of the first annular groove 11 can be 3-5mm, which further increases the sealing of the explosion-proof laser radar 4 and effectively prevents rainwater from intruding.

[0043] Similarly, as an optional implementation, the lower end of the explosion-proof cover 3 of the utility model is connected to the second annular groove 21 by means of a sealant.

[0044] The explosion-proof cover 3 is made of a transparent ceramic material with a light refractive index of 1.762-1.770 and a light transmittance of more than 93%. The transparent ceramic cover can not only ensure the high-precision performance of the explosion-proof laser radar 4, but also fully meet the requirements of precise navigation of intelligent handling equipment.

[0045] The utility model adopts special materials and structures to prepare an explosion-proof laser radar 4 with a protection level not lower than IP65, which conforms to the explosion-proof type specified in GB / T3836.1-2021 and GB / T3836.2-2021 standards, has high precision, and can fully meet the requirements of precise navigation of intelligent handling equipment.

[0046] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An explosion-proof laser radar, characterized in that: It comprises an upper shell (1), a lower shell (2), an explosion-proof cover (3), a laser radar (4) and a cable entry device (5), The explosion-proof cover (3) is a cylindrical transparent ceramic cover, the lower shell (2) and the upper shell (1) are sealedly connected to the upper and lower ends of the explosion-proof cover (3) respectively, and the laser radar (4) is installed in a cavity formed by the upper shell (1), the explosion-proof cover (3) and the lower shell (2); The cable entry device (5) is mounted on the lower housing (2).

2. The explosion-proof laser radar according to claim 1, characterized in that: The upper shell (1) and the lower shell (2) are connected via fixing bolts (6).

3. The explosion-proof laser radar according to claim 2, characterized in that: The upper shell (1) and the lower shell (2) are connected via four vertical fixing bolts (6), the axis of the fixing bolts (6) is parallel to the axis of the explosion-proof cover (3), and the four fixing bolts (6) are symmetrically distributed around the laser radar (4).

4. The explosion-proof laser radar according to claim 3, characterized in that: The lower surface of the upper shell (1) is provided with a circle of first annular grooves (11), and the upper end of the explosion-proof cover (3) is sealedly connected to the first annular groove 11.

5. The explosion-proof laser radar according to claim 4, characterized in that: The upper surface of the lower shell (2) is provided with a circle of second annular grooves (21), and the lower end of the explosion-proof cover (3) is sealedly connected to the second annular grooves (21).

6. The explosion-proof laser radar according to claim 5, characterized in that: The upper shell (1) is made of a material selected from the group consisting of aluminum alloy, cast steel or cast iron.

7. The explosion-proof laser radar according to claim 6, characterized in that: The lower shell (2) is made of a material selected from the group consisting of aluminum alloy, cast steel or cast iron.

8. The explosion-proof laser radar according to claim 7, characterized in that: The thickness of the upper shell (1) and the lower shell (2) is greater than 5 mm.

9. The explosion-proof laser radar according to claim 8, characterized in that: The upper end of the explosion-proof cover (3) is connected to the first annular groove (11) via a sealant, and the lower end of the explosion-proof cover (3) is connected to the second annular groove (21) via a sealant.

10. The explosion-proof laser radar according to claim 9, characterized in that: The explosion-proof cover (3) is made of a transparent ceramic material with a light refractive index of 1.762-1.770 and a light transmittance of more than 93%.

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