Electric type tower guy wire bending and winding assembly

Abstract

The application discloses a kind of electric type tower stay wire bending and winding assembly, it is related to the technical field of power system auxiliary tool, drive part, stay wire bending part and stay wire winding part, the stay wire bending part and stay wire winding part are respectively used with the drive part, the stay wire bending part and the stay wire winding part can be replaced installation on the drive part and operate use, the operation form (a drive part is equipped with stay wire bending part and stay wire winding part) of replaceable tool head in the application, it is convenient, fast, efficiently completed the bending and winding work of wire body in stay wire operation, greatly improve the efficiency of work, and the safety of work, simultaneously, the component structure is small and exquisite, more convenient in the complex terrain area such as mountainous area operation carries and uses.

Description

Technical Field

[0001] This invention relates to the field of power system auxiliary tools, and in particular to an electric pole guy wire bending and winding assembly. Background Technology

[0002] The erection of power poles and towers in power distribution networks is a crucial construction project, and the erection of these poles and towers is inseparable from the fabrication of guy wires. Guy wire fabrication is frequently required in daily power line construction, operation, maintenance, and emergency repairs. Traditional manual guy wire fabrication methods are not only time-consuming and labor-intensive, but also often fail to meet quality standards, frequently requiring multiple corrections to complete a single guy wire. Furthermore, the manual bending of steel strands presents significant safety risks; even slight carelessness can result in muscle injuries to the arms or legs of the workers, and hand injuries are common during the winding process. Traditional guy wire fabrication requires two people and various tools, but currently, there are no dedicated guy wire fabrication tools. When fabricating and installing guy wires, only ordinary pliers, wrenches, hammers, and pliers can be used, resulting in unsatisfactory wire fabrication quality, inconvenient winding operations, and extremely low work efficiency.

[0003] In response to the above situation, there is an urgent need to design an electric pole guy wire bending and winding assembly. Summary of the Invention

[0004] To address the above shortcomings, this invention provides an electrically powered tower guy wire bending and winding assembly, which assists operators in bending and winding guy wires, improving the efficiency of guy wire work and enhancing the safety of operators during the guy wire process. The specific technical solution is as follows:

[0005] An electrically operated tower guy wire bending and winding assembly includes:

[0006] The drive unit has an operating mechanism at its output end. The operating mechanism includes a wire bending section and a wire winding section, wherein:

[0007] The wire bending section is used to bend the wire, and the wire after being bent by the wire bending section is installed on the wire clamp.

[0008] The wire winding section is used to wind the bent end of the wire.

[0009] Preferably, the drive unit includes a drive motor, a drive unit housing, a drive unit output connector, a heat dissipation tail cover, a start button, a grip handle, and a power supply unit. The drive motor, heat dissipation tail cover, start button, grip handle, and power supply unit are mounted on the drive unit housing, and the drive unit output connector is located on the output end of the drive motor and extends out of the drive unit housing.

[0010] Preferably, the output connector of the drive unit is a built-in hexagonal connector sleeve type or an external hexagonal connector type.

[0011] Preferably, the bending section of the pull wire includes a main connecting mounting rod, a telescopic mechanism, a U-shaped bracket, and a rotating fixing clamp. The telescopic mechanism is mounted on the main connecting mounting rod, the U-shaped bracket is mounted on the main connecting mounting rod, the U-shaped bracket has a through hole at its center, the telescopic end of the telescopic mechanism extends out of the through hole, the rotating fixing clamp rotates at both ends of the U-shaped bracket, and the telescopic mechanism has a head slot.

[0012] Preferably, the telescopic mechanism includes a bearing, a lead screw, and a telescopic sleeve. The bearing is installed inside the main connecting rod, the lead screw is rotatably mounted on the bearing, the telescopic sleeve is slidably disposed on the main connecting rod, the telescopic sleeve has a thread that cooperates with the lead screw, and the end of the telescopic sleeve has a head slot.

[0013] Preferably, the head slot component includes a fixed base, a movable pressure block, a threaded rod, and a tightening component. The fixed base is installed at the end of the telescopic rod sleeve, the fixed base is provided with the threaded rod, the movable pressure block is slidably disposed on the threaded rod, and the tightening component is engaged with the threaded rod by means of a threaded connection.

[0014] Preferably, a motor mounting block is installed at the end of the main connecting rod. The motor mounting block includes a base block, a wrapping sleeve, and a hexagonal connecting rod sleeve. The base block is connected to the main connecting rod by bolts, and a through hole is provided at the center of the base block. The lead screw passes through the through hole on the base block. The hexagonal connecting rod sleeve is installed on the end of the lead screw that extends out of the through hole on the base block. The wrapping sleeve is installed on the base block and is coaxially arranged with the hexagonal connecting rod sleeve. The hexagonal connecting rod sleeve is connected to the output connector of the drive unit. Under the drive of the drive unit, the telescopic rod sleeve moves up and down reciprocatingly on the main connecting rod.

[0015] Preferably, the wire winding section includes a gear clamping block, a wire tying and winding frame, a winding frame drive gear, a winding drive gear, a drive shaft, a connecting gear, and a motor connecting sleeve. The winding frame drive gear is fixedly sleeved on the wire tying and winding frame, the wire tying and winding frame is mounted on the gear clamping block, the winding frame drive gear is located in the interlayer formed by the gear clamping block, the winding drive gear is mounted on the drive shaft, the drive shaft is mounted on the gear clamping block, the winding drive gear is located in the interlayer formed by the gear clamping block, the connecting gear is located in the interlayer formed by the gear clamping block, and the connecting gear, the winding drive gear, and the winding frame drive gear are meshed with each other. The motor connecting sleeve is mounted on the gear clamping block and is coaxially arranged with the drive shaft.

[0016] Preferably, the motor connecting sleeve is provided with a driven gear sleeve and an internal hexagonal drive gear sleeve that mesh with each other, and the drive shaft is connected to the driven gear sleeve by a key.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The present invention provides an electric pole guy wire bending and winding assembly, which, with a replaceable tool head (a drive unit equipped with a guy wire bending part and a guy wire winding part), conveniently, quickly and efficiently completes the bending and winding of the guy wire in the guy wire operation, greatly improving work efficiency and work safety.

[0019] 2. The wire bending and winding component in this invention has a compact structure, making it easier to carry and use when working in complex terrain areas such as mountains.

[0020] 3. This invention uses an electric method to replace the existing manual operation, improving the quality of wire wrapping and reducing the risk of personnel injury caused by the operation.

[0021] 4. The head slot component in this invention also has an adjustable clamping function to accommodate clamping operations of different wire diameters. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of the drive unit structure in the present invention;

[0024] Figure 2 This is a schematic diagram of the wire bending section structure in this invention;

[0025] Figure 3 This is a schematic diagram of the wire winding section structure in the present invention;

[0026] Figure 4 This is a diagram of the internal drive mechanism of the motor connecting sleeve in this invention.

[0027] 1-Drive unit, 1-1-Drive unit housing, 1-2-Drive unit output connector, 1-3-Heat dissipation tail cover, 1-4-Start button, 1-5-Holding handle, 1-6-Power supply unit, 2-Pull cable bending part, 2-1-Main connecting mounting rod, 2-1-1-Base block, 2-1-2-Wrapping sleeve, 2-1-3-Hexagonal connecting rod sleeve, 2-2-U-shaped bracket, 2-3-Rotating fixing clip, 2-4-Head slot piece, 2-4-1- Fixed base, 2-4-2-Moving pressure block, 2-4-3-Threaded rod, 2-4-4-Tightening part, 2-5-Telescopic rod sleeve, 3-Wire winding part, 3-1-Gear clamping block, 3-2-Wire binding and winding frame, 3-3-Winding frame drive gear, 3-4-Winding drive gear, 3-5-Drive shaft, 3-6-Connecting gear, 3-7-Motor connecting sleeve block, 3-7-1-Driven gear sleeve, 3-7-2-Internal hexagon drive gear sleeve, 4-Wire. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Example

[0033] like Figures 1 to 4 As shown, the present invention provides an electric tower guy wire bending and winding assembly, including a drive unit 1, a guy wire bending unit 2 and a guy wire winding unit 3. The guy wire bending unit 2 and the guy wire winding unit 3 are used in conjunction with the drive unit 1, and the guy wire bending unit 2 and the guy wire winding unit 3 can be replaced and installed on the drive unit 1 for operation.

[0034] Specifically, the wire bending part 2 is installed on the output end of the drive part 1 to bend the wire 4 and bend the wire 4 to a certain angle, so as to facilitate the installation of the wire 4 on the wire clamp. The wire 4 after being bent by the wire bending part 2 is then installed on the wire clamp.

[0035] After completing the previous step, remove the bending part 2 of the pull wire from the drive part 1, and install the winding part 3 of the pull wire on the output end of the drive part 1 to wind the end of the bent pull wire 4. Bend the bent section of the pulled wire 4 and attach it to the pull wire itself, and tie it with a tie wire.

[0036] In this invention, the drive unit 1 includes a drive motor, a drive unit housing 1-1, a drive unit output connector 1-2, a heat dissipation tail cover 1-3, a start button 1-4, a grip handle 1-5, and a power supply unit 1-6. The drive motor, heat dissipation tail cover 1-3, start button 1-4, grip handle 1-5, and power supply unit 1-6 are mounted on the drive unit housing 1-1. The drive unit output connector 1-2 is located on the output end of the drive motor and extends out of the drive unit housing 1-1. The drive unit 1 is a commonly available handheld drive mechanism, and the drive unit output connector 1-2 is either a built-in hexagonal connector type or an external hexagonal connector type.

[0037] In this invention, the draw wire bending section 2 includes a main connecting mounting rod 2-1, a telescopic mechanism, a U-shaped bracket 2-2, and a rotating fixing clamp 2-3. The telescopic mechanism is mounted on the main connecting mounting rod 2-1, and the U-shaped bracket 2-2 is mounted at the end of the main connecting mounting rod 2-1. A through hole is provided at the center of the U-shaped bracket 2-2, and the telescopic end of the telescopic mechanism extends out of the through hole. The rotating fixing clamp 2-3 rotates at both ends of the U-shaped bracket 2-2, and a head slot 2-4 is provided on the telescopic mechanism.

[0038] Specifically, the telescopic mechanism includes a bearing, a lead screw, and a telescopic sleeve 2-5. The bearing is installed inside the main connecting rod 2-1, which has a hollow structure. The lead screw is mounted on the bearing. The telescopic sleeve 2-5 is slidably disposed on the main connecting rod 2-1. The telescopic sleeve 2-5 has a thread that mates with the lead screw. The telescopic sleeve 2-5 is located at one end of the lead screw, and the other end extends out of the main connecting rod 2-1. The end of the telescopic sleeve 2-5 is provided with a head slot 2-4, which has an adjustable locking function to accommodate different wire diameters.

[0039] Specifically, the head slot component 2-4 includes a fixed base 2-4-1, a movable pressure block 2-4-2, a threaded rod 2-4-3, and a tightening component 2-4-4. The fixed base 2-4-1 is installed at the extended end of the telescopic sleeve 2-5. The fixed base 2-4-1 is provided with the threaded rod 2-4-3. The movable pressure block 2-4-2 is slidably disposed on the threaded rod 2-4-3. The tightening component 2-4-4 and the threaded rod 2-4-3 are connected by a thread. The distance between the movable pressure block 2-4-2 and the fixed base 2-4-1 can be adjusted to accommodate different wire diameters. The clamping operation of the pull wire 4 is achieved by tightening the tightening component 2-4-4.

[0040] Furthermore, a motor mounting block is installed at the end of the main connecting mounting rod 2-1. The motor mounting block includes a base block 2-1-1, a wrapping sleeve 2-1-2, and a hexagonal connecting rod sleeve 2-1-3. The base block 2-1-1 is connected to the main connecting mounting rod 2-1 by bolts, and a through hole is provided at the middle of the base block 2-1-1. The lead screw passes through the through hole on the base block 2-1-1. The hexagonal connecting rod sleeve 2-1-3 is installed on the end of the lead screw that extends out of the through hole on the base block 2-1-1. The wrapping sleeve 2-1-2 is installed on the base block 2-1-1 and is coaxially arranged with the hexagonal connecting rod sleeve 2-1-3. The hexagonal connecting rod sleeve 2-1-3 is connected to the output connector 1-2 of the drive unit. Under the drive of the drive unit 1, the telescopic rod sleeve 2-5 moves up and down on the main connecting mounting rod 2-1.

[0041] In this invention, the wire winding part 3 includes a gear clamping block 3-1, a wire binding and winding frame 3-2, a winding frame drive gear 3-3, a winding drive gear 3-4, a drive shaft 3-5, a connecting gear 3-6, and a motor connecting sleeve 3-7. The winding frame drive gear 3-3 is fixedly sleeved on the wire binding and winding frame 3-2. The wire binding and winding frame 3-2, together with the winding frame drive gear 3-3, is mounted on the gear clamping block 3-1. The winding frame drive gear 3-3 is located in the interlayer formed by the gear clamping block 3-1. The winding drive gear 3-4 is mounted on the drive shaft 3-5. Similarly, the drive shaft 3-5, together with the winding drive gear 3-4, is mounted on the gear clamping block 3-1. The winding drive gear 3-6 is located in the interlayer formed by the gear clamping block 3-1. The connecting... Gear 3-6 is located in the interlayer formed by gear clamping block 3-1. The connecting gear 3-6, winding drive gear 3-4 and winding frame drive gear 3-3 are meshed with each other. The motor connecting sleeve 3-7 is installed on gear clamping block 3-1 and is coaxially arranged with drive shaft 3-5. The motor connecting sleeve 3-7 is used in conjunction with drive part 1. Drive part 1 drives drive shaft 3-5 to rotate, thereby indirectly driving the wire tying winding frame 3-2 to rotate. The wire tying winding frame 3-2 is a cylindrical sleeve structure with a U-shaped cross-section. A wire bending groove is provided near the end of the wire tying winding frame 3-2. When the wire tying winding frame 3-2 rotates under the action of drive part 1, the wire bending groove bends the wire during the rotation, thereby winding the tying wire onto the pull wire 4.

[0042] Specifically, the motor connecting sleeve 3-7 is provided with a driven gear sleeve 3-7-1 and an internal hexagonal drive gear sleeve 3-7-2 that are meshed with each other, and the drive shaft 3-5 is connected to the driven gear sleeve 3-7-1 by a key.

[0043] A method for using an electric pole guy wire bending and winding assembly:

[0044] S1: Install the wire bending part 2 onto the drive part 1, rotate the rotating fixing clamp 2-3 around the mounting axis so that the two rotating fixing clamps 2-3 are in a position close to coaxial. Press the start button 1-4 to reset the telescopic mechanism. After the reset, the head slot 2-4 on the telescopic mechanism is also in a position close to coaxial with the two rotating fixing clamps 2-3.

[0045] S2: Adjust the tightening member 2-4-4 on the head slot member 2-4 so that the moving pressure block 2-4-2 is away from the fixed base 2-4-1 within the range defined by the threaded rod 2-4-3;

[0046] S3: Secure the pull wire 4 to the slots on the rotating fixing clamp 2-3 and the head slot 2-4, and tighten the tightening member 2-4-4 to clamp the pull wire 4 with the moving pressure block 2-4-2 and the fixed base 2-4-1;

[0047] S4: Press the start button 1-4 to start the drive motor. Under the drive of the drive motor, the lead screw in the telescopic mechanism rotates, causing the telescopic sleeve 2-5 to exit the main connecting mounting rod 2-1. That is, at this time, the telescopic sleeve 2-5 moves upward and pushes the clamped pull wire 4 upward together. Under the action of the pushing force, the pull wire 4 bends.

[0048] S5: Remove the bent pull wire 4 and install it on the wire clamp;

[0049] S6: Remove the wire bending part 2 from the drive part 1, and replace the wire winding part 3 with the drive part 1;

[0050] S7: Insert the bent section of the bent pull wire 4 into the wire wrapping frame 3-2, and manually tie it with wire once around the bent section of the pull wire 4 so that the bent section of the pull wire 4 fits the body of the pull wire 4.

[0051] S8: Press the start button 1-4 to start the drive unit 1. The drive shaft 3-5 rotates, and the power is transmitted from the winding drive gear 3-4 to the connecting gear 3-6 and then to the winding frame drive gear 3-3. During the rotation of the wire binding winding frame 3-2, the wire breaking groove hits the wire body of the binding wire, driving the wire body to rotate together and be tied to the bent section of the pull wire 4, thus completing the winding operation of the pull wire 4.

[0052] S9: Take the pull wire 4, which has been wrapped with the tie wire, out of the opening on the side of the tie wire winding frame 3-2, and remove the pull wire winding part 3 from the drive part 1 and store it properly.

[0053] The above operation method completes the bending and winding work in the wire pulling process. This component can greatly improve work efficiency, and the device is small and portable.

[0054] In summary, the electric pole guy wire bending and winding assembly provided by this invention, with its interchangeable tool head (one drive unit equipped with a guy wire bending section and a guy wire winding section), conveniently, quickly, and efficiently completes the bending and winding of the guy wire during guy wire operations, greatly improving work efficiency and safety. The guy wire bending and winding assembly of this invention has a compact structure, making it easier to carry and use in complex terrain areas such as mountainous regions. This invention uses an electric method to replace existing manual operations, improving the quality of wire winding and reducing the risk of injury to personnel. The head slot of this invention also has an adjustable clamping function to accommodate clamping operations with different wire diameters. The above description is merely a specific embodiment of this invention, but the scope of protection of this invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this invention should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope of the claims.

Claims

1. An electrically operated tower guy wire bending and winding assembly, characterized in that, include: The drive unit (1) has an operating mechanism at its output end. The operating mechanism includes a wire bending part (2) and a wire winding part (3), wherein: The wire bending section (2) is used to bend the wire (4) and install the wire (4) after being bent by the wire bending section (2) onto the wire clamp; The wire winding part (3) is used to wind the bent end of the wire (4); The wire winding section (3) includes a gear clamp (3-1), a wire winding frame (3-2), a winding frame drive gear (3-3), a winding drive gear (3-4), a drive shaft (3-5), a connecting gear (3-6), and a motor connecting sleeve (3-7). The winding frame drive gear (3-3) is fixedly sleeved on the wire winding frame (3-2). The wire winding frame (3-2) is mounted on the gear clamp (3-1). The winding frame drive gear (3-3) is located in the interlayer formed by the gear clamp (3-1). 4) Installed onto the drive shaft (3-5), the drive shaft (3-5) is installed on the gear clamp (3-1), the winding drive gear (3-4) is located in the interlayer formed by the gear clamp (3-1), the connecting gear (3-6) is located in the interlayer formed by the gear clamp (3-1), the connecting gear (3-6), the winding drive gear (3-4) and the winding frame drive gear (3-3) are meshed with each other, and the motor connecting sleeve (3-7) is installed on the gear clamp (3-1) and is coaxially arranged with the drive shaft (3-5); The motor connecting sleeve (3-7) is provided with a driven gear sleeve (3-7-1) and an internal hexagonal drive gear sleeve (3-7-2) that mesh with each other. The drive shaft (3-5) is connected to the driven gear sleeve (3-7-1) by a key.

2. The electrically operated tower guy wire bending and winding assembly according to claim 1, characterized in that, The drive unit (1) includes a drive motor, a drive unit housing (1-1), a drive unit output connector (1-2), a heat dissipation tail cover (1-3), a start button (1-4), a grip handle (1-5), and a power supply unit (1-6). The drive motor, heat dissipation tail cover (1-3), start button (1-4), grip handle (1-5), and power supply unit (1-6) are mounted on the drive unit housing (1-1). The drive unit output connector (1-2) is located on the output end of the drive motor and extends out of the drive unit housing (1-1).

3. The electrically operated tower guy wire bending and winding assembly according to claim 2, characterized in that, The output connector (1-2) of the drive unit is either a built-in hexagonal connector or an external hexagonal connector.

4. The electrically operated tower guy wire bending and winding assembly according to claim 2, characterized in that, The draw wire bending section (2) includes a main connecting mounting rod (2-1), a telescopic mechanism, a U-shaped bracket (2-2), and a rotating fixing clamp (2-3). The telescopic mechanism is mounted on the main connecting mounting rod (2-1), and the U-shaped bracket (2-2) is mounted on the main connecting mounting rod (2-1). The U-shaped bracket (2-2) has a through hole at its center, and the telescopic end of the telescopic mechanism extends out of the through hole. The rotating fixing clamp (2-3) is rotatably mounted at both ends of the U-shaped bracket (2-2). The telescopic mechanism has a head slot (2-4).

5. The electrically operated tower guy wire bending and winding assembly according to claim 4, characterized in that, The telescopic mechanism includes a bearing, a lead screw, and a telescopic sleeve (2-5). The bearing is installed inside the main connecting rod (2-1), the lead screw is rotatably mounted on the bearing, and the telescopic sleeve (2-5) is slidably disposed on the main connecting rod (2-1). The telescopic sleeve (2-5) is provided with a thread that cooperates with the lead screw, and the head slot (2-4) is provided at the end of the telescopic sleeve (2-5).

6. The electrically operated tower guy wire bending and winding assembly according to claim 5, characterized in that, The head slot component (2-4) includes a fixed base (2-4-1), a movable pressure block (2-4-2), a threaded rod (2-4-3), and a tightening component (2-4-4). The fixed base (2-4-1) is installed at the end of the telescopic sleeve (2-5). The fixed base (2-4-1) is provided with the threaded rod (2-4-3). The movable pressure block (2-4-2) is slidably disposed on the threaded rod (2-4-3). The tightening component (2-4-4) and the threaded rod (2-4-3) are engaged by a threaded connection.

7. The electrically operated tower guy wire bending and winding assembly according to claim 5, characterized in that, A motor mounting block is installed at the end of the main connecting rod (2-1). The motor mounting block includes a base block (2-1-1), a wrapping sleeve (2-1-2), and a hexagonal connecting rod sleeve (2-1-3). The base block (2-1-1) is connected to the main connecting rod (2-1) by bolts, and a through hole is provided in the middle of the base block (2-1-1). The lead screw passes through the through hole on the base block (2-1-1). The hexagonal connecting rod sleeve (2-1-3)... The screw is installed on the end of the lead screw that extends out of the through hole on the base block (2-1-1). The wrapping sleeve (2-1-2) is installed on the base block (2-1-1) and is coaxially arranged with the hexagonal connecting rod sleeve (2-1-3). The hexagonal connecting rod sleeve (2-1-3) is connected to the output connector (1-2) of the drive unit. Under the drive of the drive unit (1), the telescopic rod sleeve (2-5) moves up and down on the main connecting mounting rod (2-1).

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