Telescopic picker

Abstract

The utility model relates to the technical field of clamping structures, in particular to a telescopic picker which comprises a handle body, a pipe fitting and a clamping device which are connected in sequence. A winding roll is rotationally mounted in the handle body through a torsion spring, and a stay wire is connected and wound on the winding roll; the pull wire penetrates through the pipe fitting and is connected with the clamping device, the pull wire is driven to drive the clamping device to perform clamping action, and the length of the pipe fitting is telescopic; the winding roll is connected with a fluted disc, and the interior of the handle body is connected with a movably-arranged stop piece through a reset piece; the stop piece is inserted between teeth of the fluted disc to lock the fluted disc; the stopping piece is separated from the tooth space of the fluted disc so as to unlock the fluted disc; a movable switch piece is arranged on the handle body, and the movable switch piece can push the pull wire to drive the clamping device to carry out clamping action; wherein the movable switch piece is connected with a control piece corresponding to the stop piece, and the control piece moves to control the stop piece to be separated from or inserted into the space between teeth of the fluted disc.

Description

Technical Field

[0001] This utility model relates to the field of clamping structure technology, specifically to a retractable pickup. Background Technology

[0002] Currently, there are few pickups on the market that can be extended or retracted. The few pickups available on the market are relatively complicated to operate and inconvenient to use when controlling the extension or retraction of the length. Moreover, it is usually difficult to ensure the normal operation of the clamping action and the extension or retraction control of the pickup length at the same time. Therefore, there is an urgent need to design a simple and reliable pickup to solve the above problems. Utility Model Content

[0003] To address the problem of complex telescopic operation in current pickup structures, this invention provides a telescopic pickup.

[0004] The technical solution of this utility model is as follows:

[0005] On one hand, this utility model provides a retractable pickup, including a handle, a tube, and a clamping device connected in sequence; a winding reel is rotatably mounted in the handle via a torsion spring, and a pull cable is connected to and wound on the winding reel; the pull cable passes through the tube and is connected to the clamping device, and driving the pull cable can drive the clamping device to perform a clamping action; the length of the tube is retractable; its characteristic is that...

[0006] A toothed disc is connected to the reel, and a movable stop is connected to the handle body via a reset member; the stop is inserted between the teeth of the toothed disc to lock the toothed disc; the stop is disengaged from between the teeth of the toothed disc to unlock the toothed disc.

[0007] The handle is provided with a movable switch, which can push the pull wire to drive the clamping device to perform a clamping action.

[0008] The movable switch is connected to a control component corresponding to the stop component. The movement of the control component can control the stop component to disengage from or insert into the teeth of the gear disc.

[0009] Furthermore, the movable switch has a working state in which the stop is inserted between the teeth of the toothed disc to lock the toothed disc; and the movable switch pushes against the pull cable to drive the clamping device to perform a clamping action.

[0010] Furthermore, the pipe fitting includes multiple interconnected connecting pipe sections that can move axially, with adjacent connecting pipe sections connected by a lockable structure.

[0011] Furthermore, the reset member is configured as an elastic reset member; the stop member has a protrusion on the side facing the movable switch member; the control member is located at the end of the movable switch member facing the stop member; the movable switch member has a non-use state, in which the control member abuts against the protrusion to force the stop member to overcome the elastic force of the reset member and disengage the stop member from the teeth of the gear plate.

[0012] Furthermore, the clamping device includes a clamp seat, a pull rod assembly, and a clamping structure; the pull rod assembly can move along the axial direction of the pipe to drive the clamping structure to clamp, and the pull rod assembly and the clamp seat are connected by a return spring, and the elastic force of the return spring is greater than the elastic force of the return member.

[0013] Furthermore, the clamp structure includes two finger clamping assemblies, the clamp seat has a tubular end and is connected to the pipe fitting, the pull rod assembly is disposed in the clamp seat and its first end is connected to the pull wire, the second end of the pull rod assembly is connected to the two finger clamping assemblies, and the pull rod assembly can move along the pipe fitting to drive the two finger clamping assemblies to close together for clamping or to move away from each other to open.

[0014] Furthermore, the active switch is configured as a trigger rotatably connected to the handle body. The trigger includes a lever and a driven lever connected to each other and angled together. The control element is located on the side of the driven lever facing the stop element. The other end of the driven lever is driven to connect to the pull cable.

[0015] Furthermore, the first roller is rotatably connected to the driven rod, and the pull wire passes through and abuts against the lower side of the first roller.

[0016] Furthermore, a second roller is rotatably disposed within the handle body. The second roller is disposed on the first side of the first roller along the extension direction of the pipe fitting, and the pull wire is respectively passed through the upper and lower opposite sides of the second roller and the first roller.

[0017] And / or, a third roller is rotatably disposed within the handle body, the third roller being disposed on the second side of the first roller along the extension direction of the pipe fitting, and the pull wire is respectively passed through the upper and lower opposite sides of the third roller and the first roller;

[0018] And / or, an annular groove is formed on the outer periphery of the first roller.

[0019] Furthermore, the handle body includes a handle tube connected to the pipe fitting, and a grip handle angled to the handle tube; the grip handle extends radially from the pipe fitting; the lever is disposed on the side of the grip handle facing the clamping device; the driven rod is disposed on the side of the pipe fitting axis facing the lever.

[0020] The beneficial effects achieved by this utility model are as follows:

[0021] This utility model discloses a retractable pickup with a movable switch on the handle. The movable switch can push the pull cable to drive the clamping device to perform a clamping action. A control component is connected to the movable switch corresponding to a stop component. The movement of the control component can control the stop component to disengage from or insert into the teeth of the toothed disc. For example, in use, the user applies force to the movable switch, which drives the control component to move. The control component then drives the stop component to insert into the teeth of the toothed disc, thus limiting the rotation tendency of the toothed disc and the winding reel. At this time, since the pull cable at the winding reel end is fixed, the movable switch can effectively drive the pull cable to produce axial displacement, thereby driving the clamping device to perform a clamping action. When the control component is driven to reset, the stop component disengages from the teeth of the toothed disc. At this time, the user can control the extension and retraction length of the pipe. The driving method of the control component and the stop component can be, for example, abutment, linkage connection, etc. Through this structural design, this application can be stable and reliable during clamping action, while also allowing easy adjustment of the overall length when not in use. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0025] Figure 1 This is a schematic diagram of the main view structure of an embodiment of this application;

[0026] Figure 2 This is a first three-dimensional structural schematic diagram of an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the first internal structure of the handle body according to an embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the second internal structure of the handle in an embodiment of this application;

[0029] Figure 5 This is an exploded structural diagram of the clamping device according to an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the lockable structure according to an embodiment of this application.

[0031] In the picture,

[0032] 100. Handle body; 200. Tube fitting; 300. Clamping device; 400. Winding reel; 500. Movable switch; 610. First roller; 620. Second roller; 630. Third roller; 700. Lockable structure; 110. Handle tube; 120. Grip handle; 210. Connecting tube; 310. Clamp seat; 320. Pull rod assembly; 330. Clamping structure; 410. Pull cable; 420. Toothed disc; 430. Stop; 431. Protrusion; 440. Reset component; 510. Control component; 520. Lever; 530. Driven lever. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0034] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0035] For ease of description, spatial relative terms may be used in this text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in this text will be interpreted accordingly. Example

[0036] This application discloses a retractable pickup, including a handle 100, a tube 200, and a clamping device 300 connected in sequence. A winding reel 400 is rotatably mounted inside the handle 100 via a torsion spring. A pull cable 410 is connected to and wound around the winding reel 400. The pull cable 410 passes through the tube 200 and is connected to the clamping device 300. Driving the pull cable 410 can drive the clamping device 300 to perform a clamping action. The length of the tube 200 is retractable. A toothed disc 420 is connected to the winding reel 400. A movable part is connected inside the handle 100 via a reset member 440. A stop 430 is provided; the stop 430 is inserted between the teeth of the toothed disc 420 to lock the toothed disc 420; the stop 430 is disengaged from between the teeth of the toothed disc 420 to unlock the toothed disc 420; a movable switch 500 is provided on the handle 100, which can push the pull cable 410 to generate axial displacement to drive the clamping device 300 to perform clamping action; wherein, a control member 510 is connected to the movable switch 500 corresponding to the stop 430, and the movement of the control member 510 can control the stop 430 to disengage from or be inserted between the teeth of the toothed disc 420.

[0037] In this embodiment, the handle 100 is typically used for gripping, the tube 200 is used to provide a suitable extension length, and the clamping device 300 is used to clamp a specified item. The reel 400 is rotatably mounted inside the handle 100 via a torsion spring. A pull line 410 is wound around the reel 400, and the pull line 410 passes through the tube 200 and connects to the clamping device 300. Driving the pull line 410 can drive the clamping device 300 to clamp, typically causing at least a displacement of the pull line 410 along the axial direction of the tube 200. At the same time, the reel 400, in conjunction with the telescopic design of the tube 200, allows the user to easily adjust the length of the tube 200 and use it normally.

[0038] A toothed disc 420 is installed on the reel 400. The toothed disc 420 rotates synchronously with the reel 400. There are many ways to install the toothed disc 420. For example, the toothed disc 420 is installed coaxially with the reel 400. Inside the handle 100, a stop 430 is connected to the toothed disc 420 through a reset member 440. The stop 430 is inserted between the teeth of the toothed disc 420 to lock the toothed disc 420. The stop 430 is disengaged from between the teeth of the toothed disc 420 to unlock the toothed disc 420. As can be seen from the above, the movable stop 430 has at least two states.

[0039] A movable switch 500 is provided on the handle 100. The movable switch 500 can push the pull cable 410 to generate axial displacement, thereby driving the clamping device 300 to perform a clamping action. It can be understood that generating axial displacement can drive the clamping device 300 to perform a clamping action, but the pull cable 410 can also undergo radial displacement at the same time as axial displacement. For example, the movable switch 500 moves radially along the key 200, causing the pull cable 410 to move. The pull cable 410 will also undergo axial displacement at the same time as radial displacement. A control element 510 is connected to the movable switch 500 corresponding to the stop 430. The movement of the control element 510 can control the stop 430 to disengage from or insert into the teeth of the toothed disc 420. For example, in use, the user applies force to the movable switch 500, and the movable switch 500 drives the control element. The device 510 moves, thereby driving the stop 430 to insert between the teeth of the toothed disc 420 via the control element 510, thus limiting the rotational tendency of the toothed disc 420 and the winding disc 400. At this time, since the pull wire 410 at this end of the winding disc 400 is fixed, the movable switch element 500 can better drive the pull wire 410 to generate axial displacement, thereby driving the clamping device 300 to perform clamping action. When the control element 510 is driven to reset, the stop 430 disengages from between the teeth of the toothed disc 420. At this time, the user can control the extension and retraction length of the tube 200. The driving method of the control element 510 and the stop 430 can be, for example, abutment, linkage connection, etc. Through this structural design, the present application is stable and reliable when performing clamping action, and at the same time, the overall length can be easily adjusted when not in use.

[0040] In an optional or preferred embodiment, the clamping device 300 includes a clamp seat 310, a pull rod assembly 320, and a clamping structure 330; the pull rod assembly 320 is movable along the axial direction of the pipe 200 to drive the clamping structure 330 to clamp, and the pull rod assembly 320 is connected to the clamp seat 310 by a return spring.

[0041] In this embodiment, the clamp seat 310 serves to connect the pipe fitting 200 and also supports the clamp structure 330 and the pull rod assembly 320. The pull rod assembly 320 can move along the axial direction of the pipe fitting 200 to drive the clamp structure 330 to perform clamping. For example, when the pull rod assembly 320 moves along the pipe fitting 200 toward the reel 400, the pull rod assembly 320 drives the clamp structure 330 connected to it to perform clamping action. When the pull rod assembly 320 is reset by the reset spring, the clamp structure 330 opens to release the clamping state.

[0042] In an optional or preferred embodiment, the reset member 440 is configured as an elastic reset member, in which case the elastic force of the reset spring is greater than the elastic force of the reset member 440, so that when the application is not in use, the control member 510 on the active switch member 500 maintains the pressure on the stop member 430.

[0043] In an optional or preferred embodiment, the clamp structure 330 includes two finger clamping assemblies, the clamp seat 310 has a tubular end and is connected to the pipe fitting 200, the pull rod assembly 320 is disposed in the clamp seat 310 and its first end is connected to the pull wire 410, the second end of the pull rod assembly 320 is connected to the two finger clamping assemblies, and the pull rod assembly 320 can move along the pipe fitting 200 to drive the two finger clamping assemblies to close together for clamping or to open away from each other.

[0044] In this embodiment, the movement of the lever assembly 320 can cause the two finger clamping assemblies to close together to perform a clamping action, or it can cause the two finger clamping assemblies to move away from each other to open. The specific structural design of the finger clamping assemblies is conventional technology and is not the focus of this case, so it will not be described in detail.

[0045] In an optional or preferred embodiment, the movable switch 500 should have at least a working state and a non-working state. In the working state, the stop 430 is inserted between the teeth of the gear 420 to lock the gear 420; and the movable switch 500 pushes the pull line 410 to drive the clamping device 300 to perform a clamping action; in the non-working state, the control member 510 causes the stop 430 to disengage from the teeth of the gear 420, thereby allowing the tube 200 to be extended or shortened.

[0046] In an optional or preferred embodiment, the pipe fitting 200 includes multiple interconnected and axially movable connecting pipes 210, with a locking structure 700 provided between adjacent connecting pipe sections 210.

[0047] In this embodiment, when adjusting the length of the pipe fitting 200, the locking structure is released from the adjacent connecting pipes 210. At this time, the overall length of the pipe fitting 200 can be adjusted by axially moving the connecting pipes 210. After the length is adjusted to a preset value, the locking structure 700 locks the two adjacent connecting pipes 210 together. Optionally, such as... Figure 6 As shown, the locking structure 700 is a lever-type locking structure, which locks and unlocks two adjacent connecting pipes 210 by rotating the lever; the specific structure is conventional technology, so it will not be described in detail here.

[0048] In an optional or preferred embodiment, the reset member 440 is configured as an elastic reset member; the stop member 430 is provided with a protrusion 431 on the side facing the movable switch member 500; the control member 510 is located at the end of the movable switch member 500 facing the stop member 430; the movable switch member 500 has a non-use state, in which the control member 510 abuts against the protrusion 431 to force the stop member 430 to overcome the elastic force of the reset member 440 and disengage the stop member 430 from the teeth of the gear plate 420.

[0049] In this embodiment, the protrusion 431 makes contact with the control member 510, such as... Figure 3 , 4 As shown, in the non-use state, the control member 510 abuts against the protrusion 431. At this time, the reset member 440 is compressed and has an elastic reset tendency. It should be understood that the maintenance of this compressed state of the reset member 440 is generally provided by the reset spring in the clamping device 300. Most clamping devices 300 have this feature, which is a conventional technology. Of course, the movable switch member 500 can also be connected to the handle 100 through the elastic reset member, and the elastic force of the elastic reset member is greater than that of the reset member 440. In this way, the state can also be maintained. When in use, the control member 510 moves upward to release the restriction on the stop member 430. Under the action of the elastic force of the reset member 440, the stop member 430 resets and is inserted between the teeth of the toothed disc 420, thereby locking the toothed disc 420.

[0050] In an optional or preferred embodiment, the active switch 500 is configured as a trigger rotatably connected to the handle 100. The trigger includes a lever 520 and a driven lever 530 connected to each other and angled together. The control member 510 is located on the side of the driven lever 530 facing the stop member 430. The other end of the driven lever 530 drives the connecting cable 410.

[0051] In this embodiment, the trigger includes a lever 520 and a driven lever 530 that are connected to each other and arranged at an angle. The setting of the trigger makes the clamping action of the clamping device 300 easy to control. By pulling the trigger, the driven lever 530 can drive the pull wire 410, thereby completing the clamping action through the clamping device 300. This design structure makes the clamping action of the clamping device 300 easy to control and simple to operate.

[0052] In an optional or preferred embodiment, a first roller 610 is rotatably connected to a driven rod 530, and a pull wire 410 passes through and abuts against the lower side of the first roller 610.

[0053] In this embodiment, the first roller 610 is configured to make the contact between the pull cable 410 and the first roller 610 a rolling contact. This makes it easier and smoother to drive the pull cable 410, and also greatly improves the service life of the pull cable 410, avoiding the situation where it is easily worn and broken.

[0054] In an optional or preferred embodiment, a second roller 620 is also rotatably disposed within the handle 100, such as... Figure 3 , 4 As shown, the second roller 620 is disposed on the first side of the first roller 610 along the extension direction of the pipe fitting 200, and the pull wire 410 is respectively passed through the upper and lower opposite sides of the second roller 620 and the first roller 610.

[0055] In this embodiment, a second roller 620 is provided, as shown in the example below. By providing the second roller 620 on the side of the first roller 610 facing the reel 400, the cable exit at the reel 400 is made smoother.

[0056] In an optional or preferred embodiment, a third roller 630 is rotatably disposed inside the handle 100. The third roller 630 is disposed on the second side of the first roller 610 along the extension direction of the tube 200, and the pull wire 410 is respectively passed through the upper and lower opposite sides of the third roller 630 and the first roller 610.

[0057] For example, by setting a third roller 630 on the side of the first roller 610 away from the reel 400, the wear of the pull cable 410 can be greatly reduced. This is because the pull cable near the clamping device 300 is subject to greater tension for a long time, and is therefore more prone to wear. The setting of the third roller 630 can greatly improve this situation.

[0058] Meanwhile, the second roller 620 and / or the third roller 630 allow the pull cable 410 to be tensioned better, making it easier for the movable switch 500 to drive the pull cable 410, reducing the ineffective working stroke, and thus making the overall structure of this application more compact.

[0059] In an optional or preferred embodiment, the outer periphery of the first roller 610, the second roller 620, and the third roller 630 are all provided with annular grooves to facilitate the limiting of the pull cable 410, prevent deviation, and further improve the reliability of the movable switch 500 when driving the pull cable 410.

[0060] In an optional or preferred embodiment, the handle 100 includes a handle tube 110 connected to the tube 200, and a grip handle 120 angled to the handle tube 110; the grip handle 120 extends radially from the tube 200; a lever 520 is disposed on the side of the grip handle 120 facing the clamping device 300; a driven rod 530 is disposed on the side of the tube 200 with its axis facing the lever 520; this structural design can be referred to the appendix. Figure 1-4 As shown, its pistol-like structural design makes it easy for users to hold and allows for smooth clamping movements.

[0061] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also mean including the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0062] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0063] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A retractable pickup, comprising a handle (100), a tube (200), and a clamping device (300) connected in sequence; a winding reel (400) is rotatably mounted inside the handle (100) via a torsion spring, and a pull cable (410) is connected to and wound on the winding reel (400); the pull cable (410) passes through the tube (200) and is connected to the clamping device (300), and driving the pull cable (410) can drive the clamping device (300) to perform a clamping action; the length of the tube (200) is retractable; characterized in that, A toothed disc (420) is connected to the reel (400), and a movable stop (430) is connected inside the handle (100) via a reset member (440); the stop (430) is inserted between the teeth of the toothed disc (420) to lock the toothed disc (420); the stop (430) is disengaged from between the teeth of the toothed disc (420) to unlock the toothed disc (420). The handle (100) is provided with a movable switch (500), which can push the pull wire (410) to drive the clamping device (300) to perform a clamping action; The movable switch (500) is connected to a control element (510) corresponding to the stop (430). The movement of the control element (510) can control the stop (430) to disengage from or insert into the teeth of the toothed disc (420).

2. The retractable pickup according to claim 1, characterized in that: The movable switch (500) has a working state in which the stop (430) is inserted between the teeth of the toothed disc (420) to lock the toothed disc (420); and the movable switch (500) pushes against the pull wire (410) to drive the clamping device (300) to perform a clamping action.

3. The retractable pickup according to claim 1 or 2, characterized in that: The pipe fitting (200) includes multiple interconnected connecting pipes (210) that can move axially, and adjacent connecting pipes (210) are connected by a lockable structure (700).

4. The retractable pickup according to claim 3, characterized in that: The reset member (440) is configured as an elastic reset member; the stop member (430) has a protrusion (431) on the side facing the movable switch member (500); the control member (510) is located at the end of the movable switch member (500) facing the stop member (430); the movable switch member (500) has a non-use state, in which the control member (510) abuts against the protrusion (431) to force the stop member (430) to overcome the elasticity of the reset member (440) and disengage the stop member (430) from the teeth of the gear disc (420).

5. The retractable pickup according to claim 4, characterized in that: The clamping device (300) includes a clamp seat (310), a pull rod assembly (320), and a clamping structure (330); the pull rod assembly (320) can move along the axial direction of the pipe (200) to drive the clamping structure (330) to clamp; the pull rod assembly (320) and the clamp seat (310) are connected by a return spring, and the spring force of the return spring is greater than the spring force of the return member (440).

6. The retractable pickup according to claim 5, characterized in that: The clamp structure (330) includes two finger clamping assemblies. The clamp seat (310) has a tubular end and is connected to the pipe fitting (200). The pull rod assembly (320) is disposed in the clamp seat (310) and its first end is connected to the pull wire (410). The second end of the pull rod assembly (320) is connected to the two finger clamping assemblies. The pull rod assembly (320) can move along the pipe fitting (200) to drive the two finger clamping assemblies to close together for clamping or to open away from each other.

7. The retractable pickup according to claim 1 or 2, characterized in that: The active switch (500) is configured as a trigger rotatably connected to the handle (100). The trigger includes a lever (520) and a follower lever (530) connected to each other and angled. The control element (510) is located on the side of the follower lever (530) facing the stop (430). The other end of the follower lever (530) is driven to connect to the pull cable (410).

8. The retractable pickup according to claim 7, characterized in that: The first roller (610) is rotatably connected to the driven rod (530), and the pull wire (410) passes through and abuts against the lower side of the first roller (610).

9. The retractable pickup according to claim 8, characterized in that: A second roller (620) is rotatably disposed inside the handle (100). The second roller (620) is disposed on the first side of the first roller (610) along the extension direction of the pipe (200), and the pull wire (410) is respectively passed through the upper and lower opposite sides of the second roller (620) and the first roller (610). And / or, a third roller (630) is rotatably disposed inside the handle (100), the third roller (630) is disposed on the second side of the first roller (610) along the extension direction of the pipe (200), and the pull wire (410) is respectively passed through the upper and lower opposite sides of the third roller (630) and the first roller (610); And / or, an annular groove is formed on the outer periphery of the first roller (610).

10. The retractable pickup according to claim 7, characterized in that: The handle (100) includes a handle tube (110) connected to the tube (200) and a grip handle (120) angled to the handle tube (110); the grip handle (120) extends radially from the tube (200); the lever (520) is disposed on the side of the grip handle (120) facing the clamping device (300); the driven rod (530) is disposed on the side of the tube (200) with its axis facing the lever (520).

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