Auxiliary handle

Abstract

An auxiliary handle comprises a main body and a holding part arranged on the main body, a hoop is connected to the main body, the hoop and the main body jointly define a holding channel, and the main body is detachably installed on an external handle rod through the hoop; the first end of the hoop is provided with a kidney-shaped hole, the main body is provided with a pin shaft which is rotatably arranged in the kidney-shaped hole in a penetrating mode and can slide along the kidney-shaped hole, the second end of the hoop is provided with a U-shaped opening, and the main body is provided with an adaptive fixing shaft; the hoop has a clasping locking state, a clasping unlocking state and an opening state, transverse displacement is achieved through cooperation of the kidney-shaped hole and the pin shaft, and locking and unlocking are achieved in combination with clamping connection of the U-shaped opening and the fixing shaft. Due to the fact that operation can be completed by hands without tools, rapid disassembly and assembly are achieved, the problem that an existing adjusting structure is tedious in operation is solved, the position can be flexibly adjusted, handle rods of different specifications can be adapted, and universality, convenience and operation flexibility are considered.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hand tools, in particular to an auxiliary handle for long handle tools. BACKGROUND

[0002] In the operation of long handle tools such as shovels and gardening tools, the auxiliary handle structure is a key component for improving the comfort of holding and optimizing the efficiency of force exertion. With the diversification of tool use scenarios, users have higher requirements for the adaptability, operational convenience and use flexibility of the auxiliary handle.

[0003] Currently, the auxiliary holding structure of some tools still has obvious limitations. For example, a snow shovel disclosed in application No. 201120360622.7 (authorized announcement No. CN202247778U) is provided with an arc-shaped handle that crosses the handle crosswise at the middle position of the handle. Although this design can provide an auxiliary force point for the pushing shovel action, the handle and the handle body are fixedly connected, which cannot be flexibly adjusted in position according to the height of the user and the operation habit, nor can it be detached from the handle body to adapt to other tools, resulting in significant lack of versatility and use flexibility.

[0004] To solve the above problems, an adjustable auxiliary handle design has appeared in the prior art. For example, an auxiliary handle disclosed in application No. 201720488318.8 (authorized announcement No. CN206748358U) adjusts the size of the clamping opening through the cooperation of the movable clamp and the fixed clamp to adapt to tool handles of different outer diameters, which to some extent breaks through the single-specification adaptation limitation. However, its structure needs to be locked and unlocked through the cooperation of multiple components such as a latch, a butterfly screw, etc. The multiple components need to be repeatedly adjusted during installation and disassembly, which is complicated and difficult to achieve quick disassembly, limiting its applicability in scenarios where tools need to be frequently changed or the position needs to be adjusted.

[0005] In summary, for diversified use requirements, the existing auxiliary handle structure generally has the following problems: the fixed structure cannot adapt to the operation habits of different users, the adjustment structure is low in disassembly efficiency due to the complicated operation steps, and lacks a quick operation mechanism that can be completed without tools, making it difficult to balance versatility, convenience and flexibility.

[0006] Therefore, the existing fixed structure and adjustment structure each have limitations that are difficult to overcome, and cannot form an integrated solution that balances versatility, convenience and flexibility. In view of this situation, it is urgent to develop an auxiliary handle structure that is simple in structure, can be quickly installed and disassembled by hand, adapts to multiple handle specifications, and is labor-saving, to simultaneously remedy the above defects. SUMMARY

[0007] The technical problem to be solved by the present application is to provide an auxiliary handgrip which is simple and convenient to operate, can be quickly disassembled by hand, and has flexibility and comfort in operation.

[0008] The auxiliary handgrip comprises a main body and a holding portion arranged on the main body, a hoop is connected to the main body, and the hoop and the main body jointly define a holding channel for accommodating an external handle rod, and the main body is detachably mounted on the external handle rod through the hoop.

[0009] A waist-shaped hole is formed in the first end of the hoop, a pin shaft is arranged on the main body, the pin shaft is rotatably arranged in the waist-shaped hole and can slide in the length direction of the waist-shaped hole to realize transverse displacement of the hoop relative to the main body.

[0010] A U-shaped opening is arranged at the second end of the hoop, and a fixing shaft corresponding to the U-shaped opening is arranged on the main body.

[0011] The hoop has a holding locking state, a holding unlocking state and an open state relative to the main body.

[0012] In the holding locking state, the pin shaft is located at one side of the waist-shaped hole, and the fixing shaft is clamped in the U-shaped opening.

[0013] In the holding locking state, the hoop is transversely moved, the pin shaft slides to the other side in the waist-shaped hole, the U-shaped opening is separated from the fixing shaft, and the hoop is in the holding unlocking state relative to the main body.

[0014] In the holding unlocking state, the hoop is turned over, the first end of the hoop is rotated around the pin shaft, the second end of the hoop is separated from the main body and forms an opening, so that the external handle rod can enter and exit the holding channel through the opening, and the hoop is in the open state relative to the main body.

[0015] In order to adapt to different shapes of the external handle rod, enhance the fitting degree of the hoop and the handle rod, and improve the holding stability, preferably, the hoop is U-shaped or arc-shaped or V-shaped, and the first end and the second end of the hoop are located at two ends of the U-shaped or arc-shaped or V-shaped structure.

[0016] In order to ensure that the clamping of the U-shaped opening and the fixing shaft is more accurate and stable, avoid accidental separation during use, and optimize the smoothness of the unlocking operation, preferably, the opening direction of the U-shaped opening is parallel to the length direction of the waist-shaped hole and faces the direction of the waist-shaped hole, and the fixing shaft is arranged on the main body at a position corresponding to the U-shaped opening.

[0017] In order to further enhance the locking force of the clamp on the external handle rod, prevent the auxiliary handgrip from loosening or sliding during use, and improve safety of use, preferably, a threaded hole is penetrated by the clamp, a locking knob is threaded into the threaded hole, and a locking block is connected to the end of the locking knob toward the clamping channel; when the clamp is in the clamping and locking state, tightening the locking knob can drive the locking block to move toward the clamping channel and press the outer surface of the external handle rod to enhance the locking force of the clamp on the external handle rod.

[0018] In order to achieve a stable connection between the locking knob and the locking block, ensure that the locking block can move synchronously with the locking knob, and avoid separation of the two, thereby ensuring the reliability of the locking operation, preferably, the locking knob includes a screw and a knob provided at the top of the screw, and a connecting portion extends downward from the bottom of the screw; a fixing plate is provided at the top of the locking block, and a through hole is provided on the fixing plate and the locking block for the connecting portion to pass through; a radially outward-expanding limiting flange is provided at the bottom of the connecting portion, and the outer diameter of the limiting flange is larger than the inner diameter of the through hole; the connecting portion passes through the fixing plate and the locking block from top to bottom, so that the locking block is limited between the fixing plate and the limiting flange.

[0019] In order to increase the contact area between the locking block and the external handle rod, improve the clamping stability, and prevent the handle rod from slipping, preferably, the contact surface of the locking block with the external handle rod is formed with an arc-shaped groove that adapts to the outer surface of the external handle rod, and the groove surface of the arc-shaped groove is provided with anti-slip grooves for enhancing the friction between the locking block and the external handle rod.

[0020] In order to avoid the limiting flange protruding from the arc surface of the bottom of the arc groove and affecting the fit between the locking block and the external handle rod, to ensure the clamping effect, and to ensure that the locking block can closely contact the handle rod, preferably, the bottom of the arc groove of the locking block is provided with an avoidance groove connected to the through hole; when the locking block and the screw are in a state of mutual assembly, the limiting flange is accommodated in the avoidance groove, so that the outer peripheral contour of the limiting flange does not exceed the arc surface of the bottom of the arc groove.

[0021] In order to cooperate with the arc-shaped groove of the locking block to form a clamping area that is more in line with the outer contour of the external handle rod, further improve the stability and adaptability of the clamping, and ensure that the handle rod is stably clamped, preferably, a fixing block arranged opposite to the locking block is provided on the main body; a groove that is adapted to the outer surface of the external handle rod is provided on the end face of the fixing block facing the clamping channel; when the clamp is in a clamping and locking state and the locking block presses the external handle rod, the groove and the arc-shaped groove of the locking block together enclose a clamping area that is adapted to the outer contour of the external handle rod.

[0022] In order to adapt to different diameters of the external handle rod, the stability and reliability of clamping are enhanced by line contact, and effective fixation of different specifications of handle rods is ensured. Preferably, the groove of the fixing block is composed of two intersecting planes to form a V-shaped clamping structure, and the included angle α formed by the intersection of the two planes satisfies 30°≤α≤90°; when the hoop is in the clamping and locking state, the two planes of the V-shaped clamping structure form line contact with the outer periphery of the external handle rod, and the edge line formed by the intersection of the two planes is parallel to the central axis of the clamping channel.

[0023] In order to enhance the overall connection strength of the auxiliary handle and the external handle rod, improve the stability during use, and realize the cooperative operation of multiple hoops to adapt to the fixation of longer handle rods, preferably, at least two hoops are hinged on the main body, each hoop is arranged in the axial direction of the external handle rod, and each hoop and the main body jointly define a continuous clamping channel for accommodating the same external handle rod; the second end of each hoop away from the hinge point is provided with the U-shaped opening, and the main body is correspondingly provided with a fixing shaft adapted to each U-shaped opening.

[0024] Compared with the prior art, the advantages of the present application are that: by connecting the hoop on the main body and jointly defining the clamping channel for accommodating the external handle rod between the hoop and the main body, the main body can be detachably installed on the external handle rod through the hoop, the first end of the hoop is provided with a waist-shaped hole, the main body is provided with a pin shaft rotatingly arranged in the waist-shaped hole and capable of sliding along the length direction of the waist-shaped hole, the second end of the hoop is provided with a U-shaped opening, and the main body is provided with a fixing shaft adapted to the U-shaped opening; in the clamping and locking state, the pin shaft is located on one side of the waist-shaped hole and the fixing shaft is engaged in the U-shaped opening; moving the hoop transversely makes the pin shaft slide to the other side of the waist-shaped hole, and the U-shaped opening is separated from the fixing shaft to form the clamping and unlocking state, and turning the hoop can make it in the open state to facilitate the external handle rod to enter and exit; since the waist-shaped hole and the pin shaft are combined to realize the transverse displacement of the hoop, and the U-shaped opening and the fixing shaft are combined to form the engagement structure, the locking, unlocking and opening of the hoop can be completed manually without tools, the quick disassembly of the auxiliary handle is realized, the low efficiency problem caused by the complex operation steps of the existing adjusting structure is solved, the position can be flexibly adjusted according to the needs of the user, different specifications of external handle rods can be adapted, the defects of insufficient universality and flexibility of the fixed structure are overcome, and the universality, convenience and operation flexibility are considered. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of embodiment 1;

[0026] Figure 2 It is a schematic diagram of the exploded state structure of embodiment 1;

[0027] Figure 3 It is a schematic diagram of the exploded state structure of embodiment 1 from another angle;

[0028] Figure 4 This is a structural diagram of the locking knob in Example 1 pushing the locking block to move toward the clamping channel;

[0029] Figure 5 This is a partial cross-sectional structural diagram of Example 1;

[0030] Figure 6 This is a schematic diagram of the structure after the clamp 2 in Example 1 is flipped open;

[0031] Figure 7 This is a structural diagram of the auxiliary handshake in Example 1 installed on the main handle;

[0032] Figure 8 Schematic diagram of the three-dimensional structure of Example 2;

[0033] Figure 9 This is a structural diagram of the auxiliary handshake installed on the main handle in Example 2. DETAILED DESCRIPTION

[0034] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0035] Figures 1 to 9 The two best embodiments of the present invention are shown in the figure. Both embodiments are intended to solve the problem that the traditional auxiliary handshake fixing structure cannot adapt to the operating habits of different users and the adjustment structure operation steps are complicated, resulting in low disassembly and assembly efficiency. Through the matching design of the waist-shaped hole and the pin shaft and the U-shaped opening and the fixed shaft, the effect of rapid manual disassembly and assembly and adaptation to long-handled tools of various specifications can be achieved.

[0036] Example 1 (single clamp structure)

[0037] Figures 1 to 7 The figure shows the structure of Example 1 of the present invention. The auxiliary handgrip in Example 1 mainly includes a main body 1, a clamping hoop 2, a matching structure 3 of a waist-shaped hole 3a and a pin 3b, a U-shaped opening 4, a fixed shaft 5, a clamping channel 6, a threaded hole 7, a locking knob 8, a locking block 9, a fixing plate 10, a fixing block 11, and a gripping portion 1a.

[0038] The structure and connection relationship of each component in Example 1 are as follows

[0039] Main body 1 and grip 1a: Reference Figures 1 to 3 As shown, the main body 1 and the grip portion 1a: Figures 1 to 3The main body 1 is a supporting structure made of metal or high-strength plastic, and a holding portion 1a is integrally formed on the upper portion of the main body 1 for a user to hold. The surface of the holding portion 1a is provided with anti-skid lines to improve the holding stability. The lower portion of the main body 1 is an installation portion matched with the hoop 2, and a pin shaft 3b is fixed at the position corresponding to the connecting end of the hoop 2, and a fixed shaft 5 is fixed at the position corresponding to the free end of the hoop 2.

[0040] The hoop 2 is a curved sheet structure in the shape of U or arc or V, and is made of metal or high-strength plastic to ensure the structural strength. Figures 1 to 3 The hoop 2 is a curved sheet structure in the shape of U or arc or V, and is made of metal or high-strength plastic to ensure the structural strength. A waist-shaped hole 3a is formed at the first end of the hoop 2, and the hoop 2 is connected with the main body 1 through the cooperation of the waist-shaped hole and the pin shaft. The second end of the hoop 2 is a free end, and the free end is provided with a U-shaped opening 4. When the hoop 2 is closed with the main body 1, a clamping channel 6 is formed, and a threaded hole 7 is formed in the middle of the hoop 2 for installing a locking knob 8.

[0041] The cooperation structure 3 of the waist-shaped hole 3a and the pin shaft 3b: refer to Figures 3 to 6 The cooperation structure 3 includes the waist-shaped hole 3a and the pin shaft 3b. The waist-shaped hole 3a is formed at the end of the hoop 2 connected with the main body 1 and extends in the transverse direction. The pin shaft 3b is fixedly arranged on the lower installation portion of the main body 1, and the pin shaft 3b is rotatably arranged in the waist-shaped hole 3a and can slide along the length direction of the waist-shaped hole 3a, so as to realize the rotation and transverse displacement of the hoop 2 relative to the main body 1.

[0042] The U-shaped opening 4 and the fixed shaft 5: refer to Figure 5 and Figure 6 The U-shaped opening 4 is arranged at the second end of the hoop 2, and the opening direction is parallel to the length direction of the waist-shaped hole 3a and faces the direction of the waist-shaped hole 3a. The size of the opening is matched with the fixed shaft 5. The fixed shaft 5 is a cylindrical structure, and is vertically fixed on the main body 1 at the position corresponding to the U-shaped opening 4. When the hoop 2 is in the clamping and locking state, the U-shaped opening 4 can be clamped on the fixed shaft 5. When the hoop 2 is transversely displaced to the clamping and unlocking state, the U-shaped opening 4 is separated from the fixed shaft 5, so that the hoop 2 can be turned to the open state.

[0043] The locking knob 8: refer to Figure 4 and Figure 5 The locking knob 8 includes a screw rod 8a and a knob 8b. The screw rod 8a and the knob 8b are integrally formed, and the knob 8b is located at the top of the screw rod 8a, which is convenient for manual operation. The screw rod 8a is screwed into the threaded hole 7 of the hoop 2, and the bottom of the screw rod 8a extends downwardly to have a connecting portion 8c. The bottom of the connecting portion 8c is provided with a radially outwardly expanded limiting flange 8d, and the size of the limiting flange 8d is greater than that of the through hole 9a on the locking block 9.

[0044] The locking block 9 and the fixed plate 10: refer to Figures 3 to 5As shown, the locking block 9 is a clamping component that contacts the external handlebar. Its surface facing the clamping channel 6 is formed with an arcuate groove 9b. Anti-slip grooves 9c are provided on the surface of the arcuate groove 9b to enhance friction with the external handlebar. The locking block 9 is provided with a fixing plate 10. Both the fixing plate 10 and the locking block 9 are provided with through-holes 9a for the screw 8a to pass through. A connecting portion 8c extending downward from the bottom of the screw 8a passes through the fixing plate 10 and the locking block 9 from top to bottom, causing the bottom of the screw 8a to abut against the upper surface of the fixing plate 10. A stop flange 8d is located below the locking block 9, constraining the locking block 9 between the fixing plate 10 and the stop flange 8d, allowing it to move synchronously with the screw 8a. Furthermore, a relief groove 9d is defined at the bottom of the arcuate groove 9b of the locking block 9, connecting to the through-hole 9a. The stop flange 8d is accommodated within the relief groove 9d, and its outer contour does not extend beyond the curved surface of the bottom of the arcuate groove 9b.

[0045] Fixed block 11: Reference Figure 3 、 Figure 5 and Figure 6 As shown, the fixing block 11 is arranged on the main body 1, opposite to the locking block 9, and a groove 11a is provided on its end surface facing the clamping channel 6. The groove 11a is composed of two intersecting planes to form a V-shaped clamping structure. The angle α formed by the intersection of the two planes satisfies 30°≤α≤90°, and the optimal angle is 80°~90°. When the clamp 2 is in the clamping state and the locking block 9 presses the external handle rod, the groove 11a and the arc-shaped groove 9b of the locking block 9 together enclose a clamping area that is adapted to the outer contour of the external handle rod, and the two planes of the V-shaped clamping structure form a line contact with the outer periphery of the external handle rod, and the ridge formed by the intersection of the two planes is parallel to the central axis of the clamping channel 6.

[0046] The working principle of the auxiliary handshake in Example 1 is as follows:

[0047] 1. Installation process: Move the clamp 2 laterally along the waist-shaped hole 3a to separate the U-shaped opening 4 from the fixed shaft 5, then rotate the clamp 2 around the pin 3b to open the clamping channel 6, and place the external handle rod in the clamping channel 6. Rotate the clamp 2 to the clamping state, and then move the clamp 2 in the opposite direction along the waist-shaped hole 3a to clamp the U-shaped opening 4 on the fixed shaft 5 to complete the initial locking. Next, tighten the knob 8b of the locking knob 8 to drive the screw 8a to rotate. Since the screw 8a is threadedly connected to the threaded hole 7, the screw 8a moves downward, and then pushes the locking block 9 toward the clamping channel 6 until the arc groove 9b of the locking block 9 and the groove 11a of the fixed block 11 jointly clamp the external handle rod to complete the installation. For details, refer to Figures 5 to 7 As shown, the component shown by A in the accompanying drawings is the external handle rod.

[0048] 2. Disassembly process: unscrew the locking knob 8, make the locking block 9 away from the outer handle rod, and release the clamping state. Move the clamp 2 along the waist-shaped hole 3a transversely, make the U-shaped opening 4 disengage from the fixed shaft 5, then rotate the clamp 2 to open the clamping channel 6, and then the auxiliary handle can be removed from the outer handle rod. For details, refer to Figure 6

[0049] 3. Position adjustment process: if the position of the auxiliary handle on the outer handle rod needs to be adjusted, the steps in the disassembly process can be followed to release the locking, and then the auxiliary handle can be slid to the desired position, and then the installation process can be followed to re-lock.

[0050] Example 2 (double clamp structure)

[0051] Figures 8-9 As shown in the figure, it is a structure diagram of example 2 of the application.

[0052] Example 2 upgrades the single clamp to a double clamp structure based on example 1. The main body 1 is hinged with two clamps 2, each clamp 2 is arranged along the axial direction of the outer handle rod, and each clamp 2 and the main body 1 together define a continuous clamping channel 6 for accommodating the same outer handle rod. The second end of each clamp 2 is provided with a U-shaped opening 4, and the main body 1 is correspondingly provided with a fixed shaft 5 adapted to each U-shaped opening 4, and the rest of the components are consistent with example 1. The purpose is to enhance the connection stability by double-point clamping, which is suitable for heavy long-handle tools. Of course, the number of clamps can also be set according to actual needs.

[0053] Supplementary explanation of the structure and connection relationship of each component in example 2: The main body 1 is fixed with two pin shafts 3b along the axial direction of the outer handle rod, and the first end of each clamp 2 is provided with a waist-shaped hole 3a, which cooperates with the corresponding pin shaft 3b to realize hinging. Two clamps 2 work together to realize the switching of clamping locking, clamping unlocking and opening state. The double clamps form two axial clamping points, which can prevent the auxiliary handle from sliding or rotating along the handle rod during tool use, especially suitable for scenes that require heavy operation (such as snow shovel, shovel).

[0054] Through the above structure and working principle, the auxiliary handle can be quickly disassembled without the aid of tools, and can be adjusted flexibly according to the needs of the user, effectively solving the shortcomings of traditional auxiliary handles, and taking into account the versatility, convenience and operation flexibility.

[0055] ​It should be noted that in the description of Example 1 and Example 2, the directions or positional relationships indicated by the terms "front, rear", "left, right", "up, down", etc. are all based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "install", "connect", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An auxiliary handshake, comprising a main body (1) and a gripping portion (1a) provided on the main body (1), wherein a clamping hoop (2) is connected to the main body (1), and a clamping channel (6) for accommodating an external handle rod is defined between the clamping hoop (2) and the main body (1), and the main body (1) is detachably mounted on the external handle rod through the clamping hoop (2); characterized in that: A waist-shaped hole (3a) is formed at the first end of the clamp (2), and a pin (3b) is provided on the main body (1). The pin (3b) is rotatably inserted into the waist-shaped hole (3a) and can slide along its length in the waist-shaped hole (3a) to achieve lateral displacement of the clamp (2) relative to the main body (1); The second end of the hoop (2) is provided with a U-shaped opening (4), and the main body (1) is provided with a fixed shaft (5) adapted to the U-shaped opening (4); The clamp (2) has a clamping and locking state, a clamping and unlocking state, and an open state relative to the main body (1); In the clamping and locking state, the pin shaft (3b) is located on one side of the waist-shaped hole (3a), and the fixed shaft (5) is clamped inside the U-shaped opening (4); In the clamping and locking state, the clamping hoop (2) is moved laterally, and the pin shaft (3b) slides to the other side in the waist-shaped hole (3a), so that the U-shaped opening (4) is separated from the fixed shaft (5), and the clamping hoop (2) is in the clamping and unlocking state relative to the main body (1); In the clamping and unlocking state, the clamping hoop (2) is turned over, the first end of the clamping hoop (2) rotates around the pin shaft (3b), and the second end of the clamping hoop (2) is separated from the main body (1) to form an opening, so that the external handle rod can enter and exit the clamping channel (6) through the opening. At this time, the clamping hoop (2) is in an open state relative to the main body (1).

2. The assisted handshake according to claim 1, wherein: The hoop (2) is in a U-shape, an arc shape, or a V-shape, and the first end and the second end of the hoop (2) are respectively located at two ends of the U-shape, the arc shape, or the V-shape.

3. The assisted handshake according to claim 2, wherein: The opening direction of the U-shaped opening (4) is parallel to the length direction of the waist-shaped hole (3a) and faces the direction of the waist-shaped hole (3a). The fixed shaft (5) is provided at a position on the main body (1) corresponding to the U-shaped opening (4).

4. The assisted handshake according to any one of claims 1 to 3, characterized in that: A threaded hole (7) is provided through the clamp (2), a locking knob (8) is screwed into the threaded hole (7), and a locking block (9) is connected to the end of the locking knob (8) facing the clamping channel (6); When the clamp (2) is in a clamping and locking state, tightening the locking knob (8) can drive the locking block (9) to move toward the clamping channel (6) and press the outer surface of the external handle rod to enhance the locking force of the clamp (2) on the external handle rod.

5. The assisted handshake according to claim 4, wherein: The locking knob (8) comprises a screw rod (8a) and a knob (8b) provided on the top of the screw rod (8a); a connecting portion (8c) extends downward from the bottom of the screw rod (8a); A fixing plate (10) is provided on the top of the locking block (9), and a through hole (9a) for the connecting portion (8c) to pass through is provided on both the fixing plate (10) and the locking block (9); The bottom of the connecting portion (8c) is provided with a radially outwardly expanding limiting flange (8d), and the outer diameter of the limiting flange (8d) is larger than the inner diameter of the through hole (9a); The connecting portion (8c) passes through the fixing plate (10) and the locking block (9) from top to bottom, so that the locking block (9) is limited between the fixing plate (10) and the limiting flange (8d).

6. The assisted handshake according to claim 5, characterized in that: The contact surface of the locking block (9) with the external handle rod is formed with an arcuate groove (9b) adapted to the outer surface of the external handle rod, and the groove surface of the arcuate groove (9b) is provided with anti-slip grooves (9c) for enhancing the friction between the locking block (9) and the external handle rod.

7. The assisted handshake according to claim 6, wherein: The bottom of the arc-shaped groove (9b) of the locking block (9) is provided with an avoidance groove (9d) communicating with the through hole (9a); When the locking block (9) and the screw rod (8a) are in a mutually assembled state, the limiting flange (8d) is accommodated in the avoidance groove (9d), so that the outer peripheral contour of the limiting flange (8d) does not exceed the bottom arc surface of the arc groove (9b).

8. The assisted handshake according to claim 6, wherein: The main body (1) is provided with a fixing block (11) arranged opposite to the locking block (9); the fixing block (11) is provided with a groove (11a) adapted to the outer surface of the external handle rod on the end surface facing the holding channel (6); When the clamp (2) is in a clamping and locking state and the locking block (9) presses the external handle rod, the groove (11a) and the arc-shaped groove (9b) of the locking block (9) together enclose a clamping area that matches the outer contour of the external handle rod.

9. The assisted handshake according to claim 8, characterized in that: The groove (11a) of the fixing block (11) is composed of two intersecting planes forming a V-shaped clamping structure, and the angle α formed by the intersection of the two planes satisfies 30°≤α≤90°; When the clamp (2) is in a clamping and locking state, the two planes of the V-shaped clamping structure form a line contact with the outer periphery of the external handle rod, and the ridge formed by the intersection of the two planes is parallel to the central axis of the clamping channel (6).

10. The assisted handshake according to claim 1, wherein: At least two hoops (2) are hingedly connected to the main body (1), and the hoops (2) are arranged at intervals along the axial direction of the external handle rod, and the hoops (2) and the main body (1) together define a continuous clamping channel (6) for accommodating the same external handle rod; The second end of each clamp (2) away from the hinge point is provided with the U-shaped opening (4), and the main body (1) is correspondingly provided with a fixed shaft (5) respectively adapted to each U-shaped opening (4).

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