CN220817223U - Explosion-proof cradle head - Google Patents

Abstract

The utility model provides an explosion-proof cradle head. An embodiment is provided, the explosion-proof cradle head comprising: the device comprises a first shell, a second shell, a rotating shaft and a shaft sleeve; one end of the rotating shaft is welded or integrally formed with the first shell, the other end of the rotating shaft is sleeved in the shaft sleeve and is rotationally connected with the shaft sleeve, and the shaft sleeve is welded or integrally formed with the second shell; the other end of the rotating shaft is provided with an explosion-proof outer side wall, and an explosion-proof inner side wall is arranged in the shaft sleeve; the explosion-proof inner side wall is in clearance fit with the explosion-proof outer side wall, and the explosion-proof requirement between the rotating shaft and the shaft sleeve is met. The utility model can reduce the cost of the explosion-proof cradle head and improve the reliability of the explosion-proof cradle head.

Description

Explosion-proof cradle head

Technical Field

The utility model relates to the technical field of cameras, in particular to an explosion-proof cradle head.

Background

In recent years, the requirements of portability and light weight of the camera are increasing, and the functionality of the camera is also increasing. One type of camera is provided with a plurality of shells for meeting the functional requirements of users, and the shells which are connected with each other can realize relative rotation, so that the shooting area of the camera is flexibly regulated and controlled.

Although the existing video camera adopts a double-bearing and straight-cylinder copper sleeve mode at the joint of adjacent shells to perform explosion-proof treatment. However, for the mode of duplex bearing + straight barrel type copper sheathing, need the one end interference pressfitting of straight barrel type copper sheathing on first casing, the other end and the second casing clearance fit of straight barrel type copper sheathing, and the lateral wall of the other end of straight barrel type copper sheathing and the cooperation relation of another casing satisfy the drum requirement of flame proof. The detachable rotating shaft installed on the second shell is sleeved in the straight cylinder type copper sleeve and is connected with the driving module in the first shell so as to drive the second shell to rotate. Meanwhile, the detachable rotating shaft is also rotationally connected with the straight cylinder copper bush through a double bearing. The mounting mode is complex, the machining size requirements on the outer diameter of the straight-cylinder copper sleeve and the inner diameter of the shell are high, the difficulty in manufacturing devices is increased, the straight-cylinder copper sleeve after pressing is easy to squeeze and deform, the explosion-proof performance is affected, the material cost is increased, the explosion-proof performance of the copper sleeve is reduced, and the reliability of a camera is affected.

Disclosure of utility model

In order to solve the problems, the explosion-proof cradle head provided by the utility model is matched with the shaft sleeve through the arrangement of the rotating shaft, so that the first shell and the second shell can relatively rotate, and meanwhile, the explosion-proof requirement of the connection space between the first shell and the second shell is met, and the reliability of the explosion-proof cradle head is improved while the cost of the explosion-proof cradle head is reduced.

The utility model provides an explosion-proof cradle head, comprising: the device comprises a first shell, a second shell, a rotating shaft and a shaft sleeve;

one end of the rotating shaft is welded or integrally formed with the first shell, the other end of the rotating shaft is sleeved in the shaft sleeve and is rotationally connected with the shaft sleeve, and the shaft sleeve is welded or integrally formed with the second shell;

The other end of the rotating shaft is provided with an explosion-proof outer side wall, and an explosion-proof inner side wall is arranged in the shaft sleeve;

the explosion-proof inner side wall is in clearance fit with the explosion-proof outer side wall, and the explosion-proof requirement between the rotating shaft and the shaft sleeve is met.

Optionally, the explosion-proof cradle head further includes: a support bearing;

The support bearing is positioned in the shaft sleeve and sleeved on the rotating shaft.

Optionally, the explosion-proof cradle head further includes: a pressing assembly;

the pressing assembly is fixedly arranged on the outer side of the shaft sleeve and abuts against the support bearing in the axial direction of the rotating shaft.

Optionally, the rotating shaft includes: a supporting shaft body and an explosion-proof shaft body;

The support shaft body and the explosion-proof shaft body are coaxial, one end of the support shaft body is fixedly connected with one end of the explosion-proof shaft body, the radius of the support shaft body is different from that of the explosion-proof shaft body, and the explosion-proof outer side wall is arranged on the explosion-proof shaft body;

The support shaft body and the first shell are welded or integrally formed, and the support bearing is sleeved on the support shaft body or/and the explosion-proof shaft body.

Optionally, when the support bearing is sleeved on the support shaft body, the end face of the explosion-proof shaft body is abutted against the inner ring of the support bearing, the pressing assembly is located at one side, far away from the explosion-proof shaft body, of the support bearing, and the pressing assembly is abutted against the outer ring of the support bearing in the axial direction of the rotating shaft;

and/or when the support bearing is sleeved on the explosion-proof shaft body, the pressing assembly is positioned at one side, far away from the explosion-proof shaft body, of the support bearing, and the pressing assembly is in contact with the outer ring of the support bearing.

Optionally, the support bearing comprises: first and second bearings, the support shaft body includes: the first axis body and the second axis body, pressfitting subassembly includes: a first press fitting and a second press fitting;

the first shaft body and the second shaft body are respectively positioned at two ends of the explosion-proof shaft body, the radius of the first shaft body is larger than that of the explosion-proof shaft body, and the radius of the explosion-proof shaft body is larger than that of the second shaft body;

the first bearing is sleeved on the explosion-proof shaft body, the first press fitting part is positioned on one side, far away from the explosion-proof shaft body, of the first bearing, the first press fitting part is in contact with the outer ring of the first bearing, and one side, far away from the outer ring of the first bearing, of the first press fitting part is in contact with the shaft sleeve;

the second bearing is sleeved on the second bearing body, the end face of the explosion-proof shaft body is abutted against the inner ring of the second bearing, the second press fitting is positioned on one side of the second bearing away from the explosion-proof shaft body, the second press fitting is abutted against the outer ring of the second bearing, and one side of the outer ring of the second bearing away from the second press fitting is abutted against the shaft sleeve;

Optionally, the first press fitting includes: the first pressing ring, the sealing ring and the pressing ring;

The first clamping ring, the sealing ring and the pressing ring are all sleeved on the first shaft body, the sealing ring is located between the first clamping ring and the pressing ring and respectively collides with the first clamping ring and the pressing ring, the first clamping ring is located on one side, deviating from the first bearing, of the sealing ring, the first clamping ring is fixedly connected with the first shaft body or the shaft sleeve, and the pressing ring is in contact with the outer ring of the first bearing.

Optionally, the explosion-proof cradle head further includes: a drive assembly;

the driving assembly is connected with the rotating shaft so as to drive the first shell to rotate through the rotating shaft.

Optionally, the drive assembly comprises: a gear and a drive motor;

The gear is fixedly connected with the rotating shaft, the driving motor is connected with the gear, and the driving motor is used for driving the gear to rotate.

Optionally, the explosion-proof cradle head further includes: a pressing piece;

The top casting die is located the gear is towards one side of explosion-proof axis body, the gear with top casting die fixed connection, top casting die with second axis body fixed connection, top casting die orientation the one end of second bearing with the inner circle of second bearing is inconsistent, the inner circle of second bearing deviate from the one end of top casting die with explosion-proof axis is inconsistent.

Optionally, the rotating shaft is provided with a wire passing through hole;

The through wire through hole penetrates through the rotating shaft along the length direction of the rotating shaft, and the through wire through hole is communicated with the cavity in the first shell and the cavity in the second shell.

According to the explosion-proof cradle head provided by the embodiment of the utility model, the rotating shaft is arranged on the first shell in a welding or integrally-formed connection mode, the shaft sleeve is arranged on the second shell in a welding or integrally-formed connection mode, and the explosion-proof outer side wall and the explosion-proof inner side wall are respectively arranged on the matching surface of the rotating shaft and the shaft sleeve, so that the cost of the explosion-proof cradle head is reduced, and the reliability of the explosion-proof cradle head is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present application, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is an exploded view of an explosion proof cradle head according to an embodiment of the present application;

FIG. 2 is a partial cross-sectional view of an explosion-proof cradle head according to an embodiment of the present application;

FIG. 3 is a partial cross-sectional view of an explosion-proof cradle head according to an embodiment of the present application;

FIG. 4 is a schematic block diagram of an explosion-proof cradle head according to an embodiment of the present application;

fig. 5 is a schematic block diagram of a section of an explosion-proof cradle head according to an embodiment of the present application.

It will be appreciated that the structure illustrated in fig. 2 is part of the structure illustrated in fig. 5.

Reference numerals:

1. A first housing; 2. a second housing; 3. a rotation shaft; 31. a support shaft body; 311. a first shaft body; 312. a second shaft body; 32. an explosion-proof shaft body; 321. an explosion-proof outer sidewall; 33. a wire passing through hole; 4. a shaft sleeve; 41. a first stepped hole; 42. a second stepped hole; 43. a third stepped hole; 44. a fourth stepped hole; 45. a fifth step hole; 46. a sixth stepped hole; 47. an explosion-proof inner sidewall; 5. a support bearing; 51. a first bearing; 52. a second bearing; 6. a pressing assembly; 61. a first press fitting; 611. a first clamping ring; 612. a seal ring; 613. a compression ring; 62. a second press fitting; 621. a second clamping ring; 7. a drive assembly; 71. a gear; 72. a driving motor; 8. a pressing piece; 91. a lens housing; 92. a transmission housing; 93. a power supply housing; 94. a horizontal rotating shaft; 95. a vertical rotating shaft; 96. a horizontal sleeve; 97. and (5) a vertical shaft sleeve.

Detailed Description

In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Embodiments of the application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Spatially relative terms, such as "under", "below", "beneath", "under", "above", "over" and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "below" and "under" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.

It will be understood that when an element is referred to as being "fixedly connected" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

In a first aspect, an embodiment of the present utility model provides an explosion-proof pan-tilt camera, referring to fig. 1 and 2, the explosion-proof pan-tilt camera includes: a first housing 1, a second housing 2, a rotary shaft 3 and a sleeve 4.

One end of the rotating shaft 3 is welded or integrally formed with the first shell 1, the other end of the rotating shaft 3 is sleeved in the shaft sleeve 4 and is rotationally connected with the shaft sleeve 4, and the shaft sleeve 4 is welded or integrally formed with the second shell 2.

Wherein the other end of the rotating shaft 3 is provided with an explosion-proof outer side wall 321; an explosion-proof inner side wall 47 is provided in the sleeve 4.

The explosion-proof inner side wall 47 is in clearance fit with the explosion-proof outer side wall 321, and meets the explosion-proof requirement between the rotating shaft 3 and the shaft sleeve 4. The requirements for explosion isolation between the rotating shaft 3 and the sleeve 4 include, but are not limited to: the gap between the explosion-proof inner side wall 47 and the explosion-proof outer side wall 321 is 0.2 mm to 0.25 mm, and the width of the joint surface of the explosion-proof inner side wall 47 and the explosion-proof outer side wall 321 is not less than 9.5 mm, which is not particularly limited in this embodiment.

According to the explosion-proof tripod head camera provided by the utility model, the rotating shaft 3 is arranged on the first shell 1 in a welding or integrally-formed connection mode, the shaft sleeve 4 is arranged on the second shell 2 in a welding or integrally-formed connection mode, and the explosion-proof outer side wall 321 and the explosion-proof inner side wall 47 are respectively arranged on the matching surfaces of the rotating shaft 3 and the shaft sleeve 4, so that the cost of the explosion-proof tripod head camera is reduced, and the reliability of the explosion-proof tripod head camera is improved. In the present embodiment, the rotation shaft 3 is welded to the first housing 1, and the boss 4 is welded to the second housing 2.

Further, the rotary shaft 3 includes: a support shaft 31 and an explosion-proof shaft 32.

The supporting shaft body 31 and the explosion-proof shaft body 32 are coaxial, one end of the supporting shaft body 31 is fixedly connected with one end of the explosion-proof shaft body 32 in an integrated forming mode, the radius of the supporting shaft body 31 is different from that of the explosion-proof shaft body 32, and the explosion-proof outer side wall 321 is arranged on the explosion-proof shaft body 32.

Wherein the number of the supporting shaft bodies 31 is at least one. When the support shaft 31 is one, one end of the support shaft 31 is fixedly connected to one end of the explosion-proof shaft 32, and the other end of the support shaft 31 is welded to the first housing 1, but the present invention is not limited thereto. When the support shaft 31 is plural, the plural support shafts 31 may be disposed at both ends of the explosion-proof shaft 32, respectively, and the radii of the plural support shafts 31 may be the same or different, but is not limited thereto.

In the present embodiment, with reference to fig. 3, the support shaft body 31 includes: a first shaft body 311 and a second shaft body 312. The first shaft body 311 and the second shaft body 312 are respectively located at both ends of the explosion-proof shaft body 32. The radius of the first shaft body 311 is larger than the radius of the explosion-proof shaft body 32, and the radius of the explosion-proof shaft body 32 is larger than the radius of the second shaft body 312.

Further, the explosion-proof cradle head camera further comprises: supporting the bearing 5. The support bearing 5 is positioned in the shaft sleeve 4 and is sleeved on the explosion-proof shaft body 32 and/or the support shaft body 31. Through setting up the support bearing 5, not only can guarantee that rotation axis 3 can be stable relative axle sleeve 4 rotates, can also avoid simultaneously at pivoted in-process, explosion-proof inside wall 47 and explosion-proof lateral wall 321 take place the friction to influence the explosion-proof performance of explosion-proof cloud platform camera, and then influence the reliability of explosion-proof cloud platform camera.

Wherein the number of support bearings 5 is at least one. When the number of the support bearings 5 is one, the support bearings 5 may be sleeved on the support shaft body 31 or the explosion-proof shaft body 32. When the number of the support bearings 5 is plural, the plurality of support bearings 5 may be all sleeved on the support shaft body 31, may be all sleeved on the explosion-proof shaft body 32, and may be respectively sleeved on the support shaft body 31 and the explosion-proof shaft body 32.

In the present embodiment, the support bearing 5 includes: a first bearing 51 and a second bearing 52. The first bearing 51 is sleeved on the explosion-proof shaft body 32 and faces one end of the first shaft body 311, the second bearing 52 is sleeved on the second shaft body 312 and faces one end of the explosion-proof shaft body 32, and the end face of the explosion-proof shaft body 32 is abutted against the inner ring of the second bearing 52.

Further, the explosion-proof cradle head camera further comprises: and a pressing assembly 6. The pressing assembly 6 is fixedly arranged on the outer side of the shaft sleeve 4 and abuts against the support bearing 5 in the axial direction of the rotating shaft 3. The number of the pressing assemblies 6 is one or two, and is specifically determined by the number of the support bearings 5 and the installation positions. Through setting up pressing assembly 6 can prevent that support bearing 5 from drunkenness on rotation axis 3, improved the stability of explosion-proof cloud platform camera structure.

In the present embodiment, the pressing assembly 6 includes: a first press fitting 61 and a second press fitting 62.

The first press fitting 61 is located on a side of the first bearing 51 away from the explosion-proof shaft body 32, the first press fitting 61 abuts against an outer ring of the first bearing 51, and the side of the outer ring of the first bearing 51 away from the first press fitting 61 abuts against an inner side wall of the sleeve 4.

The second press fitting 62 is located on a side of the second bearing 52 away from the explosion-proof shaft body 32, the second press fitting 62 abuts against an outer ring of the second bearing 52, and a side of the second bearing 52 away from the second press fitting 62 abuts against the sleeve 4.

Further, the first press fitting 61 includes: a first clamping ring 611, a sealing ring 612 and a clamping ring 613.

The first clamping ring 611, the sealing ring 612 and the pressing ring 613 are all sleeved on the first shaft body 311. The sealing ring 612 is located between the first clamping ring 611 and the pressing ring 613, is abutted against the first clamping ring 611 and the pressing ring 613 respectively, and is in interference fit with the first shaft body 311. The first presser 611 is located on the side of the sealing ring 612 facing away from the first bearing 51. The first clamping ring 611 is fixedly connected with the first shaft body 311 or the shaft sleeve 4. The pressing ring 613 abuts the outer ring of the first bearing 51.

It should be noted that, the first pressing ring 611 may be fixedly connected with the side wall of the first shaft body 311 or the end surface of the shaft sleeve 4 through a screw, and also be sleeved on the first shaft body 311 or the shaft sleeve 4 through a hoop. In the present embodiment, the first clamping ring 611 is fixedly connected with the end surface of the sleeve 4 by a screw. Can effectually play waterproof dirt-proof effect to explosion-proof cloud platform camera through setting up the sealing washer.

The second press fitting 62 includes a second press ring 621. The second pressing ring 621 is located at a side of the second bearing 52 facing away from the first bearing 51, abuts against an outer ring of the second bearing 52, and is fixedly connected with the other end face of the sleeve 4 through a screw.

Further, the explosion-proof cradle head camera further comprises: and a drive assembly 7. The driving assembly 7 is fixedly connected with one end of the second shaft body 312, which is away from the first shaft body 311, so as to drive the first housing 1 to rotate relative to the second housing 2 through the rotating shaft 3.

Wherein the drive assembly 7 may be wholly or partially located within the second housing 2; the driving assembly 7 may be a gear transmission mechanism or a pulley transmission mechanism, etc., but is not limited thereto.

In this embodiment, the drive assembly 7 is located entirely within the second housing 2. The drive assembly 7 includes: a gear 71 and a drive motor 72. Wherein, the gear 71 is fixedly connected with one end of the second shaft 312, which is away from the first shaft 311; the driving motor 72 is fixed in the second housing 2 and connected with the gear 71; the driving motor 72 is used to drive the gear 71 to rotate.

Further, the explosion-proof cradle head camera further comprises: and a pressing member 8. The presser 8 is located on the side of the gear 71 facing the explosion-proof shaft 32. The gear 71 is fixedly connected with the pressing piece 8 by a screw. The pressing piece 8 is sleeved on one side of the second shaft body 312, which is away from the first shaft body 311, and the pressing piece 8 is fixedly connected with the end surface of the second shaft body 312 through a screw, one end of the pressing piece 8, which faces the second bearing 52, is abutted against the inner ring of the second bearing 52, and one end of the inner ring of the second bearing 52, which is away from the pressing piece 8, is abutted against the explosion-proof shaft body 32. By providing the pressing member 8, the second bearing 52 can be further prevented from moving on the rotation shaft 3, and the stability of the explosion-proof pan-tilt camera structure is improved.

In the present embodiment, an end of the inner ring of the first bearing 51 facing the first shaft body 311 is in clearance fit with the end surface of the first shaft body 311, and an end of the inner ring of the second bearing 52 facing the second shaft body 312 is in clearance fit with the sleeve 4. Thus, the machining error between the rotating shaft 3 and the supporting bearing 5 is absorbed, the first bearing 51 and the second bearing 52 are ensured not to be compressed at the same time, and the problem that the supporting bearing 5 is prevented from rotating and blocking due to locking is avoided.

Further, the rotation shaft 3 is provided with a wire passing through hole 33. The through-wire hole 33 penetrates the rotary shaft 3 in the longitudinal direction of the rotary shaft 3. The wire passing through hole 33 communicates the cavity in the first housing 1 and the cavity in the second housing 2. Wherein, the pressing piece 8 and the gear 71 are hollow structures so as to avoid blocking the wire passing through hole 33.

The arrangement of the through-line holes 33 facilitates the wired connection between the electronic devices inside the first casing 1 and the electronic devices inside the second casing 2, thereby facilitating the realization of corresponding circuit control, such as the acquisition of a real-time image.

In this embodiment, the inner cavity of the sleeve 4 is adapted to the rotation shaft 3, the support bearing 5 and the press-fit assembly 6. Specifically, the inner cavity of the shaft sleeve 4 is designed into a 6-section stepped hole. Wherein, the first step hole 41 is used for placing a sealing ring and a compression ring 613; the second step hole 42 is a mounting surface of the first bearing 51, the inner diameter of the second step hole is in clearance fit with the outer ring of the first bearing 51, and the depth of the second step hole is the same as the height of the bearing; the inner diameter of the third step hole 43 is consistent with the small diameter of the outer ring of the first bearing 51, and the end surface of the third step hole 43 is contacted with the end surface of the outer ring of the first bearing 51; the fourth step hole 44 is used for providing an explosion-proof inner side wall 47, the length of the fourth step hole meets the explosion-proof standard, and the gap value between the inner diameter of the fourth step hole and the outer diameter of the explosion-proof shaft body 32 meets the explosion-proof requirement; the inner diameter of the fifth step hole 45 is consistent with the minor diameter of the outer ring of the second bearing 52, and the end surface of the fifth step hole 45 is in contact with the end surface of the outer ring of the second bearing 52; the sixth stepped hole 46 is a second bearing 52 mounting surface, the inner diameter of which is in clearance fit with the outer race of the second bearing 52, and the depth of the sixth stepped hole 46 is the same as the height of the second bearing 52. The second pressing ring 621 provided at the end face of the sixth stepped hole 46 has an inner diameter identical to the outer ring minor diameter of the second bearing 52 so that the second pressing ring 621 is attached to the rotary hole by screw locking, ensuring that the outer ring of the second bearing 52 is pressed.

According to the explosion-proof cradle head camera provided by the embodiment of the utility model, the rotary shaft 3 and the shaft sleeve 4 are arranged between the first shell 1 and the second shell 2, so that the first shell 1 can rotate relative to the second shell 2, the shooting visual angle of the explosion-proof cradle head camera is enlarged, the corresponding explosion-proof requirement can be met, and the manufacturing cost is low.

In a second aspect, an embodiment of the present utility model provides an explosion-proof rotary camera, including, in combination with fig. 4 and 5: lens housing 91, transmission housing 92, power supply housing 93, horizontal rotation shaft 94, vertical rotation shaft 95, horizontal shaft sleeve 96, and vertical shaft sleeve 97.

Wherein, the lens housing 91 is fixedly provided with a lens module for collecting images; a horizontal rotation driving component 7 for driving the horizontal rotating shaft 94 to rotate is arranged in the transmission shell 92; a vertical rotation driving assembly 7, a processing module and a power module for driving the vertical rotation shaft 95 to rotate are arranged in the power supply housing 93.

The processing module is used for controlling working states of the lens module, the horizontal rotation driving assembly 7 and the vertical rotation driving assembly 7; the power module is used for supplying power to the processing module, the lens module, the horizontal rotation driving assembly 7 and the vertical rotation driving assembly 7.

The lens shell 91 is rotationally connected with the transmission shell 92 along the horizontal direction through the cooperation of the horizontal rotating shaft 94 and the horizontal shaft sleeve 96, and the cooperation of the horizontal rotating shaft 94 and the horizontal shaft sleeve 96 meets the explosion-proof requirement; the transmission housing 92 is rotatably connected with the power housing 93 in the vertical direction through the cooperation of the vertical rotating shaft 95 and the vertical shaft sleeve 97, and the cooperation of the vertical rotating shaft 95 and the vertical shaft sleeve 97 satisfies the explosion-proof requirement.

In the present embodiment, the connection manner of the lens housing 91 and the transmission housing 92 by the cooperation of the horizontal rotation shaft 94 and the horizontal shaft sleeve 96 is identical to the connection manner of the first housing 1 and the second housing 2 by the cooperation of the rotation shaft 3 and the shaft sleeve 4 in the first aspect; the connection mode of the movable housing with the power supply housing 93 through the cooperation of the vertical rotation shaft 95 and the vertical shaft sleeve 97 is the same as the connection mode of the first housing 1 with the second housing 2 through the cooperation of the rotation shaft 3 and the shaft sleeve 4 in the first aspect. Wherein, including all being provided with supporting bearing 5, pressfitting subassembly 6 and top casting die 8 on horizontal pivot 94 and vertical pivot 95, this embodiment is not repeated in this way.

The explosion-proof rotary camera provided by the embodiment has the advantages of simple structure, convenience in installation, safety and firmness, capability of realizing the rotation of the first shell 1 relative to the second shell 2, enlarging the shooting visual angle of the explosion-proof holder, capability of meeting corresponding explosion-proof requirements, and low manufacturing cost.

In the description of the present specification, reference to the terms "some embodiments," "other embodiments," "desired embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims (10)

1. An explosion-proof cradle head, comprising: the device comprises a first shell (1), a second shell (2), a rotating shaft (3) and a shaft sleeve (4);

One end of the rotating shaft (3) is welded or integrally formed with the first shell (1), the other end of the rotating shaft (3) is sleeved in the shaft sleeve (4) and is rotationally connected with the shaft sleeve (4), and the shaft sleeve (4) is welded or integrally formed with the second shell (2);

the other end of the rotating shaft (3) is provided with an explosion-proof outer side wall (321), and an explosion-proof inner side wall (47) is arranged in the shaft sleeve (4);

The explosion-proof inner side wall (47) is in clearance fit with the explosion-proof outer side wall (321), and the explosion-proof requirement between the rotating shaft (3) and the shaft sleeve (4) is met.

2. The explosion proof cradle head of claim 1, further comprising: a support bearing (5);

The support bearing (5) is positioned in the shaft sleeve (4) and sleeved on the rotating shaft (3).

3. The explosion proof cradle head of claim 2, further comprising: a press-fit assembly (6);

The pressing assembly (6) is fixedly arranged on the outer side of the shaft sleeve (4) and abuts against the supporting bearing (5) in the axial direction of the rotating shaft (3).

4. An explosion-proof cradle head according to claim 3, wherein the rotation shaft (3) comprises: a support shaft body (31) and an explosion-proof shaft body (32);

the support shaft body (31) and the explosion-proof shaft body (32) are coaxial, one end of the support shaft body (31) is fixedly connected with one end of the explosion-proof shaft body (32), the radius of the support shaft body (31) is different from that of the explosion-proof shaft body (32), and the explosion-proof outer side wall (321) is arranged on the explosion-proof shaft body (32);

The support shaft body (31) is welded with the first shell (1) or integrally formed, and the support bearing (5) is sleeved on the support shaft body (31) or/and the explosion-proof shaft body (32).

5. The explosion-proof holder according to claim 4, wherein when the support bearing (5) is sleeved on the support shaft body (31), the end face of the explosion-proof shaft body (32) is abutted against the inner ring of the support bearing (5), the pressing assembly (6) is positioned at one side of the support bearing (5) away from the explosion-proof shaft body (32), and the pressing assembly (6) is abutted against the outer ring of the support bearing (5) in the axial direction of the rotating shaft (3);

And/or when the support bearing (5) is sleeved on the explosion-proof shaft body (32), the pressing assembly (6) is positioned on one side, far away from the explosion-proof shaft body (32), of the support bearing (5), and the pressing assembly (6) is in contact with the outer ring of the support bearing (5).

6. The explosion-proof cradle head according to claim 4, wherein the support bearing (5) comprises: a first bearing (51) and a second bearing (52), the support shaft body (31) including: a first shaft body (311) and a second shaft body (312), the pressing assembly (6) comprises: a first press fitting (61) and a second press fitting (62);

The first shaft body (311) and the second shaft body (312) are respectively positioned at two ends of the explosion-proof shaft body (32), the radius of the first shaft body (311) is larger than that of the explosion-proof shaft body (32), and the radius of the explosion-proof shaft body (32) is larger than that of the second shaft body (312);

The first bearing (51) is sleeved on the explosion-proof shaft body (32), the first press fitting part (61) is positioned on one side, far away from the explosion-proof shaft body (32), of the first bearing (51), the first press fitting part (61) is in contact with the outer ring of the first bearing (51), and one side, far away from the first press fitting part (61), of the outer ring of the first bearing (51) is in contact with the shaft sleeve (4);

The second bearing (52) is sleeved on the second bearing body (312), the end face of the explosion-proof shaft body (32) is abutted against the inner ring of the second bearing (52), the second press fitting (62) is positioned on one side, far away from the explosion-proof shaft body (32), of the second bearing (52), the second press fitting (62) is abutted against the outer ring of the second bearing (52), and one side, far away from the second press fitting (62), of the outer ring of the second bearing (52) is abutted against the shaft sleeve (4);

And/or, the first press fitting (61) comprises: a first clamping ring (611), a sealing ring (612) and a clamping ring (613);

The first pressing ring (611), the sealing ring (612) and the pressing ring (613) are all sleeved on the first shaft body (311), the sealing ring (612) is located between the first pressing ring (611) and the pressing ring (613) and respectively abuts against the first pressing ring (611) and the pressing ring (613), the first pressing ring (611) is located at one side, deviating from the sealing ring (612), of the first bearing (51), the first pressing ring (611) is fixedly connected with the first shaft body (311) or the shaft sleeve (4), and the pressing ring (613) abuts against the outer ring of the first bearing (51).

7. The explosion proof cradle head of claim 6, further comprising: a drive assembly (7);

The driving assembly (7) is connected with the rotating shaft (3) so as to drive the first shell (1) to rotate through the rotating shaft (3).

8. The explosion-proof cradle head according to claim 7, wherein the drive assembly (7) comprises: a gear (71) and a drive motor (72);

The gear (71) is fixedly connected with the rotating shaft (3), the driving motor (72) is connected with the gear (71), and the driving motor (72) is used for driving the gear (71) to rotate.

9. The explosion proof cradle head of claim 8, further comprising: a pressing piece (8);

The bearing pressing device is characterized in that the pressing piece (8) is located on one side, facing the explosion-proof shaft body (32), of the gear (71), the gear (71) is fixedly connected with the pressing piece (8), the pressing piece (8) is fixedly connected with the second shaft body (312), one end, facing the second bearing (52), of the pressing piece (8) is abutted against the inner ring of the second bearing (52), and one end, facing away from the pressing piece (8), of the inner ring of the second bearing (52) is abutted against the explosion-proof shaft body (32).

10. The explosion-proof cradle head according to claim 1, wherein the rotation shaft (3) is provided with a wire passing through hole (33);

the through-line through hole (33) penetrates through the rotating shaft (3) along the length direction of the rotating shaft (3), and the through-line through hole (33) is communicated with the cavity in the first shell (1) and the cavity in the second shell (2).