Movable dome camera mounting device

Abstract

The invention belongs to the technical field of camera installation, and particularly relates to a movable ball machine camera installation device which comprises a supporting mechanism, a lightning protection mechanism and an adjusting mechanism, and the supporting mechanism comprises a vertical rod assembly and a transverse rod assembly used for installing a ball machine camera, one end of the lightning protection mechanism detachably sleeves the top of the vertical rod assembly, the cross rod assembly is adjacent to the lightning protection mechanism, one end of the adjusting mechanism is connected with the lightning protection mechanism, and the other end of the adjusting mechanism is connected with the end, away from the vertical rod assembly, of the cross rod assembly to form a triangular supporting structure. And the triangular support can ensure the stable installation of the dome camera, so that the dome camera can stably work in a windy environment. The length of the adjusting mechanism in the axial direction is adjustable, so that the shooting elevation angle range of the dome camera can be adjusted to be wider, and the comprehensiveness of the monitoring range is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of camera installation, and in particular relates to a movable ball camera camera installation device. Background Art

[0002] With the development and application of science and technology, ball camera cameras have been widely used in many fields. In terms of installation methods, ball camera camera installation methods are divided into fixed and mobile. Generally, fixed installation is used in places where there are buildings attached, and mobile installation is mostly used in places where there are no buildings attached. Mobile installation has the characteristics of easy movement, no geographical restrictions, and a wide field of view.

[0003] In the related art, the mobile dome camera mounting bracket includes: a basic base, a monitoring pole, a wall-mounted bracket and a lightning rod. The traditional monitoring pole has a simple structure, the lightning rod is directly welded to the top of the monitoring pole, the wall-mounted bracket is installed on the monitoring pole, and the dome camera is connected to the wall-mounted bracket of the monitoring pole through a crossbar. This installation method makes the crossbar on which the dome camera is installed easy to be damaged in a windy environment, and the existing dome camera can only expand the viewing angle through its own rotation. When monitoring objects at a high height in an open field, its up and down elevation adjustment is limited, resulting in a limited monitoring range, making it difficult to monitor comprehensively. Summary of the invention

[0004] In order to solve the above problems, the purpose of the present invention is to provide a movable dome camera installation device, aiming to solve the technical problems of unstable installation and limited monitoring range of dome camera in windy environment.

[0005] In order to achieve the above-mentioned purpose, the present invention proposes a movable ball camera installation device, including a supporting mechanism, a lightning protection mechanism and an adjusting mechanism, the supporting mechanism includes a vertical pole assembly and a cross bar assembly arranged perpendicular to each other for installing the ball camera, one end of the lightning protection mechanism is detachably mounted on the top of the vertical pole assembly, the cross bar assembly is arranged adjacent to the lightning protection mechanism, one end of the adjusting mechanism is respectively connected to the lightning protection mechanism and the other end is connected to one end of the cross bar assembly away from the vertical pole assembly to form a triangular supporting structure, and the adjusting mechanism is adjustable in length along its axial direction.

[0006] Optionally, the vertical pole assembly is provided with a hinged portion, one end of the horizontal rod assembly is hingedly connected to the hinged portion, and the other end is provided with a first connecting portion and a second connecting portion which are opposite to each other, the first connecting portion is used to connect the adjustment mechanism, and the second connecting portion is used to install a dome camera.

[0007] Optionally, the first connecting portion is rotatably connected to the adjusting mechanism.

[0008] Optionally, the lightning protection mechanism includes a cap and a lightning rod, the lightning rod is arranged on the top of the cap, and a sleeve cavity is recessed at the end of the cap facing away from the lightning rod. A plurality of locking holes are circumferentially provided at one end of the pole assembly, and the top end of the pole assembly extends into the sleeve cavity and is detachably connected to the cap through the locking holes.

[0009] Optionally, the adjustment mechanism includes a driving member and an adjusting member, the driving member is arranged on the lightning protection mechanism, and two ends of the adjusting member are respectively connected to the driving member and one end of the cross bar assembly for mounting a dome camera.

[0010] Optionally, the adjusting member is a basket bolt.

[0011] Optionally, the adjustment mechanism is configured as an electric push rod, one end of the electric push rod is hinged to the lightning protection mechanism, and the other end is hinged to one end of the cross bar assembly for mounting a dome camera.

[0012] Optionally, the vertical pole assembly includes a base and a support rod, the base is provided with a fixing groove, the outer periphery of the fixing groove is provided with a plurality of screw holes, the bottom of the support rod is provided with a fixing protrusion and the outer periphery is provided with a flange, the fixing protrusion is arranged in the fixing groove and the flange is detachably assembled with the base through the plurality of screw holes.

[0013] Optionally, the support rod includes a first vertical rod and a second vertical rod that are detachably connected, the first vertical rod is connected to the base, a connecting plate is provided on the radial periphery of one end of the second vertical rod, and the cross bar assembly is detachably connected to the connecting plate.

[0014] Optionally, one end of the first vertical pole is provided with the fixing protrusion and the flange, and the other end is concavely provided with a connecting groove, and the end of the second vertical pole away from the connecting plate is provided with a threaded section, and the threaded section is threadedly connected to the connecting groove.

[0015] The movable ball camera installation device of the present invention includes a supporting mechanism, a lightning protection mechanism and an adjusting mechanism. The supporting mechanism includes a vertical pole assembly and a cross bar assembly for installing the ball camera. One end of the lightning protection mechanism is detachably sleeved on the top of the vertical pole assembly. The cross bar assembly is arranged adjacent to the lightning protection mechanism. One end of the adjusting mechanism is respectively connected to the lightning protection mechanism and the other end is connected to an end of the cross bar assembly away from the vertical pole assembly to form a triangular supporting structure. The triangular support can ensure the stable installation of the ball camera so that it can work stably in a windy environment. The length of the adjusting mechanism along its axial direction is adjustable so that the shooting elevation angle range of the ball camera can be adjusted to be wider, thereby improving the comprehensiveness of the monitoring range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1The present invention is a schematic diagram of the overall structure of a movable dome camera installation device according to an embodiment of the present invention.

[0017] Figure 2 It is a partial structural schematic diagram of an embodiment of a movable dome camera installation device of the present invention.

[0018] Figure 3 The present invention is a schematic diagram of the base structure of an embodiment of a movable ball camera mounting device of the present invention.

[0019] Figure 4 This is a schematic diagram of the first upright pole structure of an embodiment of a movable dome camera mounting device of the present invention.

[0020] Figure 5 This is a schematic diagram of the second pole structure of an embodiment of a movable dome camera installation device of the present invention.

[0021] In the figure: 100, movable ball camera mounting device; 10, supporting mechanism; 20, vertical pole assembly; 21, base; 21A, fixing groove; 21B, screw hole; 23, support rod; 23A, locking hole; 23B, connecting groove; 231, first vertical pole; 2311, flange; 233, second vertical pole; 2331, threaded section; 40, connecting plate; 41, hinged part; 30, cross bar assembly; 31, first connecting part; 32, second connecting part; 33, cross bar body; 50, lightning protection mechanism; 51, cap; 53, lightning rod; 70, adjustment mechanism; 71, adjustment member; 900, ball camera. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer and more understandable, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0023] With the development and application of science and technology, ball camera cameras have been widely used in many fields. In terms of installation methods, ball camera camera installation methods are divided into fixed and mobile. Generally, fixed installation is used in places where there are buildings attached, and mobile installation is mostly used in places where there are no buildings attached. Mobile installation has the characteristics of easy movement, no geographical restrictions, and a wide field of view.

[0024] In the related art, the mobile dome camera mounting bracket includes: a basic base, a monitoring pole, a wall-mounted bracket and a lightning rod. The traditional monitoring pole has a simple structure, the lightning rod is directly welded to the top of the monitoring pole, the wall-mounted bracket is installed on the monitoring pole, and the dome camera is connected to the wall-mounted bracket of the monitoring pole through a crossbar. This installation method makes the crossbar on which the dome camera is installed easy to be damaged in a windy environment, and the existing dome camera can only expand the viewing angle through its own rotation. When monitoring objects at a high height in an open field, its up and down elevation adjustment is limited, resulting in a limited monitoring range, making it difficult to monitor comprehensively.

[0025] In order to achieve the above-mentioned object, the present invention provides a movable ball camera installation device 100, including a supporting mechanism 10, a lightning protection mechanism 50 and an adjustment mechanism 70, such as Figure 1 and Figure 2 As shown, the support mechanism 10 includes a vertical pole assembly 20 and a cross bar assembly 30 for installing a dome camera 900, one end of the lightning protection mechanism 50 is detachably mounted on the top of the vertical pole assembly 20, the cross bar assembly 30 is arranged adjacent to the lightning protection mechanism 50, one end of the adjustment mechanism 70 is respectively connected to the lightning protection mechanism 50 and the other end is connected to one end of the cross bar assembly 30 away from the vertical pole assembly 20 to form a triangular support structure, and the adjustment mechanism 70 is adjustable in length along its axial direction.

[0026] The movable ball camera installation device 100 of the present invention includes a support mechanism 10, a lightning protection mechanism 50 and an adjustment mechanism 70. The support mechanism 10 includes a vertical pole assembly 20 and a crossbar assembly 30 for installing a ball camera 900, which are arranged perpendicular to each other. The shooting direction of the ball camera 900 is facing away from the vertical pole assembly 20. One end of the lightning protection mechanism 50 is detachably mounted on the top of the vertical pole assembly 20. The crossbar assembly 30 is arranged adjacent to the lightning protection mechanism 50. One end of the adjustment mechanism 70 is respectively connected to the lightning protection mechanism 50 and the other end is connected to the end of the crossbar assembly 30 away from the vertical pole assembly 20 to form a triangular support structure. The triangular support can ensure the stable installation of the ball camera 900 so that it can work stably in a windy environment. The length of the adjustment mechanism 70 along its axial direction is adjustable so that the shooting elevation angle range of the ball camera 900 can be adjusted to be wider, thereby improving the comprehensiveness of the monitoring range.

[0027] The initial state of the triangular support structure composed of the adjustment mechanism 70, the vertical pole assembly 20 and the horizontal pole assembly 30 is set to be a right triangle, wherein the horizontal pole assembly 30 and the vertical pole assembly 20 are two right angle sides of the right triangle, and the adjustment mechanism 70 is the hypotenuse of the right triangle. The adjustment mechanism 70 is adjustable in length along its axial direction, that is, the length of the hypotenuse is changed, so that the shooting elevation angle range of the ball camera 900 can be adjusted.

[0028] Optionally, the adjustment mechanism 70 includes a driving member (not shown) and an adjusting member 71, the driving member is arranged on the lightning protection mechanism 50, and both ends of the adjusting member 71 are respectively connected to the driving member and one end of the crossbar assembly 30 for mounting the ball camera 900.

[0029] In this embodiment, the driving member can be set as a servo motor, and the adjusting member 71 is connected to the output shaft of the driving member. The driving energy of the driving member can drive the adjusting member 71 to adjust the length of the adjusting member along its own axial direction, so that the original right-angled triangular support is deformed. When the length of the adjusting member 71 becomes longer, the original hypotenuse length increases relatively, the right angle of the right triangle becomes obtuse, and the downward viewing range of the ball camera 900 is expanded; when the length of the adjusting member 71 becomes shorter, the original hypotenuse length decreases relatively, the right angle of the right triangle becomes acute, and the upward viewing range of the ball camera 900 is expanded.

[0030] The driving component can be automatically driven according to demand to adjust the required viewing angle, thereby expanding the pitch viewing angle to a wider range beyond the monitoring range of the pitch angle rotation of the ball camera 900 itself, and comprehensively monitoring tall monitoring targets in the wilderness.

[0031] Optionally, the adjusting member 71 is a turnbuckle bolt.

[0032] In this embodiment, the turnbuckle is also called a rigging turnbuckle or a tightening wire buckle. The turnbuckle uses the screw of the bolts that can be screwed at both ends to extend and retract, and can adjust the overall length. It is often used to bundle components during component transportation and to tighten and loosen them during installation and correction. When used for length adjustment, it is not necessary to take it off, but to screw the bolt at one end, move a distance to adjust the overall length and then adjust the length of the longer hypotenuse of the triangle. It is easy to process, low cost, and highly practical.

[0033] In actual use, the driving member is arranged at the upright assembly 20, and the screw of the bolt connecting the turnbuckle bolt to one end of the driving member is adjusted to thereby adjust the overall length of the turnbuckle bolt.

[0034] Optionally, the adjustment mechanism 70 is configured as an electric push rod, one end of the electric push rod is hinged to the lightning protection mechanism 50, and the other end is hinged to one end of the cross bar assembly 30 for mounting the ball camera 900. The electric push rod has a fixed section and a telescopic section. The electric push rod is started to drive the telescopic section to extend or shorten, thereby adjusting the length of the longer hypotenuse of the triangle to achieve the purpose of adjusting the pitch angle of the ball camera 900.

[0035] Optionally, the vertical pole assembly 20 is provided with a hinged portion 41, one end of the cross bar assembly 30 is hingedly connected to the hinged portion 41, and the other end is provided with a first connection portion 31 and a second connection portion 32 which are opposite to each other. The first connection portion 31 is used to connect the adjustment mechanism 70, and the second connection portion 32 is used to install the ball camera 900.

[0036] In this embodiment, the hinged portion 41 can be a bull's ear, and one end of the crossbar assembly 30 can be provided with a connection end that is bolted and connected to the bull's ear. The upper side of the end of the crossbar assembly 30 away from the vertical pole assembly 20 is provided with a first connection portion 31 that is connected to one end of a basket bolt, and the lower side is provided with a second connection portion 32 for installing the ball camera 900. The above installation method makes the connection between the crossbar assembly 30 and the vertical pole assembly 20 in a hinged form, and the basket bolt is used at the other end of the crossbar assembly 30 for oblique lifting, which reduces the compression or deformation damage caused by the long-term gravity force of the ball camera 900 at the connection between the crossbar assembly 30 and the vertical pole assembly 20, and also avoids the connection damage caused by wind factors in a windy environment, thereby improving the installation stability of the ball camera 900.

[0037] Optionally, the first connecting portion 31 is rotatably connected to the adjusting mechanism 70 .

[0038] In this embodiment, in the support relationship of a right-angle triangle support in the initial state, when the length of the adjustment member 71 (basket bolt or electric push rod) serving as the hypotenuse changes, the angle between the adjustment member 71 and the cross bar assembly 30 also changes. At this time, at least one of the two ends of the adjustment member 71 needs to be movable. Specifically, the first connecting portion 31 on the cross bar assembly 30 can be rotatably connected to one end of the basket bolt or electric push rod serving as the adjustment mechanism 70, so that the angle can be adaptively changed.

[0039] Furthermore, the adjusting mechanism 70 is rotatably connected to the lightning protection mechanism 50. By the same token, in the support relationship of the right-angle triangle support in the initial state, when the length of the adjusting member 71 (basket bolt or electric push rod) serving as the hypotenuse changes, the angle between the adjusting member 71 and the lightning protection structure also needs to change. At this time, the other end of the adjusting member 71 needs to be movable. Specifically, the lightning protection mechanism 50 can be rotatably connected to one end of the basket bolt or electric push rod serving as the adjusting mechanism 70, so that the angle can be adaptively changed.

[0040] Combined with reference Figure 2 As shown, further, the crossbar assembly 30 includes a crossbar body 33, one end of the crossbar body 33 is provided with a connection end connected to the bull's ear of the vertical pole assembly 20, and the other end of the crossbar body 33 is provided with a first connection part 31 and a second connection part 32 connected to the adjustment member 71 and the ball camera 900 respectively, wherein the first connection part 31 can be set to a bull's ear structure with the same structure as the hinge part 41 on the vertical pole assembly 20. At the same time, the lightning protection mechanism 50 can also be provided with a bull's ear structure with the same structure as the hinge part 41 for connecting with the driving motor or electric push rod of the basket bolt.

[0041] Combination Figure 1 and Figure 2As shown, optionally, the lightning protection mechanism 50 includes a cap 51 and a lightning rod 53. The lightning rod 53 is arranged on the top of the cap 51. A sleeve cavity is recessed at one end of the cap 51 facing away from the lightning rod 53. A plurality of locking holes 23A are circumferentially provided at one end of the pole assembly 20. The top end of the pole assembly 20 extends into the sleeve cavity and is detachably connected to the cap 51 through the locking hole 23A.

[0042] In this embodiment, the top end of the vertical pole assembly 20 extends into the sleeve cavity and is detachably connected to the sleeve cap 51 through the locking hole 23A. The detachable connection method can be screw or bolt thread locking, or can be pin plug-in fixed for locking. The multiple locking holes 23A can be designed as a circle along the radial periphery of the vertical pole assembly 20, or can be designed as multiple circles. When designed as a circle of multiple locking holes 23A, the multiple circles are arranged at intervals along the length extension direction of the vertical pole assembly 20 to change the depth of the sleeve cap 51 on the top of the vertical pole assembly 20, so as to change the initial length of the short right-angle side as the right-angle triangle support, so as to adjust the initial tension of the adjustment member 71 on the crossbar assembly 30, and set it optimally.

[0043] Combined with reference Figure 1 , Figures 3 to 5 As shown, optionally, the vertical pole assembly 20 includes a base 21 and a support rod 23, the base 21 is provided with a fixing groove 21A, the outer periphery of the fixing groove 21A is provided with a plurality of screw holes 21B, the bottom of the support rod 23 is provided with a fixing protrusion and the outer periphery is provided with a flange 2311, the fixing protrusion is arranged in the fixing groove 21A and the flange is detachably assembled with the base 21 through a plurality of screw holes 21B.

[0044] In this embodiment, the corresponding arrangement of the fixing protrusion and the fixing groove 21A improves the alignment and stability of the vertical arrangement of the base 21 of the upright assembly 20 and the support rod 23, and avoids the risk of the support rod 23 shaking relative to the base 21. Among them, the bottom of the support rod 23 is provided with a fixing protrusion and the outer periphery is provided with a flange plate 2311, and the flange plate 2311 is also provided with a plurality of flange fixing holes corresponding to the plurality of screw holes 21B on the outer periphery of the fixing groove 21A. By locking the corresponding fixing holes and the screw holes 21B with bolts, the support rod 23 can be stably installed on the base 21, thereby improving the stability of the installation chassis of the ball camera 900.

[0045] Optionally, the support rod 23 includes a first vertical rod 231 and a second vertical rod 233 that are detachably connected, the first vertical rod 231 is connected to the base 21, a connecting plate 40 is provided on the radial periphery of one end of the second vertical rod 233, and the crossbar assembly 30 is detachably connected to the connecting plate 40.

[0046] In this embodiment, the first vertical pole 231 and the second vertical pole 233 are detachably connected so that either of them can be replaced or the length can be adjusted. A connecting plate 40 is provided at the radial periphery of one end of the second vertical pole 233 away from the first vertical pole 231, and the crossbar assembly 30 is detachably connected to the connecting plate 40. The connecting plate 40 can be welded and fixed to the first vertical pole 231. The provision of the connecting plate 40 can increase the stability of the provision of the crossbar assembly 30 and the vertical pole assembly 20, and reduce the instability of the crossbar assembly 30 being directly installed on the cylindrical first vertical pole 231.

[0047] One or four connected connecting plates 40 are provided along the radial periphery of one end of the second vertical pole 233. In this way, no matter what the installation direction of the second vertical pole 233 is, a simple small adjustment can be made to obtain the installation orientation of the ball camera 900 suitable for the corresponding monitoring object. Multiple connecting plates 40 are interconnected and welded to the second vertical pole 233, which can also improve the installation stability of the connecting plates 40.

[0048] Optionally, a fixing protrusion and a flange 2311 are provided at one end of the first vertical rod 231, and a connecting groove 23B is recessed at the other end. A threaded section 2331 is provided at one end of the second vertical rod 233 away from the connecting plate 40, and the threaded section 2331 is threadedly connected to the connecting groove 23B.

[0049] In this embodiment, a fixing protrusion corresponding to the fixing groove 21A of the base 21 is arranged at one end of the first vertical rod 231 away from the second vertical rod 233, and the flange 2311 is installed adjacent to the fixing protrusion. The first vertical rod 231 and the second vertical rod 233 can be threadedly connected to a fixed length, or can be telescopically slidable and relatively fixed in a fixed length, which can be set as needed.

[0050] In the present invention, if the terms "inside", "outside", "upper", "lower" and the like appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, or are the orientation or position relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present application 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 application.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "fix", and "connect" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A movable ball camera installation device, characterized in that: It includes a supporting mechanism, a lightning protection mechanism and an adjusting mechanism. The supporting mechanism includes a vertical pole assembly and a cross bar assembly which are arranged perpendicular to each other and are used to install a dome camera. One end of the lightning protection mechanism is detachably mounted on the top of the vertical pole assembly. The cross bar assembly is arranged adjacent to the lightning protection mechanism. One end of the adjusting mechanism is respectively connected to the lightning protection mechanism and the other end is connected to one end of the cross bar assembly away from the vertical pole assembly to form a triangular supporting structure. The adjusting mechanism is adjustable in length along its axial direction.

2. The movable dome camera installation device according to claim 1, characterized in that: The vertical pole assembly is provided with a hinged portion, one end of the horizontal pole assembly is hingedly connected to the hinged portion, and the other end is provided with a first connecting portion and a second connecting portion opposite to each other, the first connecting portion is used to connect the adjustment mechanism, and the second connecting portion is used to install a dome camera.

3. The movable dome camera installation device according to claim 2, characterized in that: The first connecting portion is rotatably connected to the adjusting mechanism.

4. The movable dome camera installation device according to claim 1, characterized in that: The lightning protection mechanism includes a cap and a lightning rod. The lightning rod is arranged on the top of the cap. A sleeve cavity is recessed at one end of the cap facing away from the lightning rod. A plurality of locking holes are circumferentially provided at one end of the vertical pole assembly. The top end of the vertical pole assembly extends into the sleeve cavity and is detachably connected to the cap through the locking holes.

5. The movable dome camera installation device according to any one of claims 1 to 4, characterized in that: The adjusting mechanism comprises a driving member and an adjusting member, wherein the driving member is arranged on the lightning protection mechanism, and two ends of the adjusting member are respectively connected to the driving member and one end of the crossbar assembly for mounting the dome camera.

6. The movable dome camera installation device according to claim 5, characterized in that: The adjusting member is a turnbuckle bolt.

7. The movable dome camera installation device according to any one of claims 1 to 4, characterized in that: The adjustment mechanism is configured as an electric push rod, one end of which is hinged to the lightning protection mechanism, and the other end of which is hinged to one end of the crossbar assembly where the dome camera is mounted.

8. The movable dome camera installation device according to any one of claims 1 to 4, characterized in that: The vertical pole assembly includes a base and a support rod, the base is provided with a fixing groove, the outer periphery of the fixing groove is provided with a plurality of screw holes, the bottom of the support rod is provided with a fixing protrusion and the outer periphery is provided with a flange, the fixing protrusion is arranged in the fixing groove and the flange is detachably assembled with the base through the plurality of screw holes.

9. The movable dome camera installation device according to claim 8, characterized in that: The support rod comprises a first vertical rod and a second vertical rod which are detachably connected, wherein the first vertical rod is connected to the base, a connecting plate is provided on the radial periphery of one end of the second vertical rod, and the crossbar assembly is detachably connected to the connecting plate.

10. The movable dome camera installation device according to claim 9, characterized in that: One end of the first vertical rod is provided with the fixing protrusion and the flange, and the other end is concavely provided with a connecting groove. The end of the second vertical rod away from the connecting plate is provided with a threaded section, and the threaded section is threadedly connected to the connecting groove.

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