Connecting sleeve and grass trimmer

Abstract

The utility model discloses a connecting sleeve and a grass trimmer. The connecting sleeve comprises a connecting sleeve body; the connecting piece and the fastening pin are arranged on a first connecting concave part of the connecting sleeve body, the connecting piece and the fastening pin jointly form a connecting structure, and the first rod and / or the second rod are / is connected with the connecting sleeve through the connecting structure; the first connecting concave part is used for containing the first rod and / or the second rod, a second connecting concave part is arranged on the connecting piece, and the connecting piece is hinged to the connecting sleeve body through a hinge structure, so that the connecting piece rotates around a hinge shaft of the hinge structure until the second connecting concave part covers the first rod and / or the second rod in the first connecting concave part close to the fastening pin; and the fastening shaft rotates to enter the first connecting concave part so as to press the first connecting concave part and enable the first connecting concave part to be tightly attached to the first rod and / or the second rod. According to the connecting sleeve and the grass trimmer, the problem that time and labor are wasted when the angle and position of a U-shaped handle of a grass trimmer are adjusted in the prior art can be solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of grass trimmers, specifically relating to a connecting sleeve and a grass trimmer. Background Technology

[0002] Currently, most U-handle lawn mowers rely on a traditional connecting sleeve and screw fixing method to connect the handle to the body. While this fixing method can meet basic usage needs to a certain extent, it has obvious defects and shortcomings.

[0003] First, adjusting the angle or position of the U-shaped handle requires tools, which not only increases the complexity of the operation and reduces work efficiency, but may also limit the flexibility of use due to the lack or inconvenience of tools. Furthermore, the adjustment process using this fixing method is cumbersome, requiring multiple screw removals and installations, which is time-consuming and laborious. For users who seek efficient operation, this design clearly cannot meet their needs. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is that adjusting the angle and position of the U-shaped handle of the lawn mower is time-consuming and laborious.

[0005] To solve the above-mentioned technical problems, this utility model provides a connecting sleeve for connecting the first and second rods of a lawnmower. The connecting sleeve includes: a connecting sleeve body; a connecting member and a fastening pin. A first connecting recess, the connecting member, and the fastening pin together form a connecting structure. The first rod and / or the second rod are connected to the connecting sleeve through the connecting structure. The first connecting recess is used to accommodate the first rod and / or the second rod. The connecting member is provided with a second connecting recess. The connecting member is hinged to the connecting sleeve body through a hinge structure, so that the connecting member rotates around the hinge axis of the hinge structure until the second connecting recess covers the first rod and / or the second rod near the first connecting recess of the fastening pin. The fastening shaft of the fastening pin is rotatably passed through the connecting member around its axis, so that it rotates into the first connecting recess through the fastening shaft to press the first connecting recess and make the first connecting recess fit tightly with the first rod and / or the second rod.

[0006] Furthermore, when the first rod is connected to the connecting sleeve via the connecting structure, the second connecting recess of the connector covers the second rod and is fastened to the connecting sleeve body, so that it can rotate away from the first connecting recess corresponding to the first rod via the fastening shaft, so that the first rod can swing around the axis of the first rod.

[0007] Furthermore, when the second rod is connected to the connecting sleeve via the connecting structure, the second connecting recess of the connector covers the first rod and is fastened to the body of the connecting sleeve, so that it can rotate away from the first connecting recess corresponding to the second rod via the fastening shaft, so that the body of the connecting sleeve can reciprocate along the axial direction of the second rod.

[0008] Furthermore, the hinge structure includes a first hinge portion, a second hinge portion, and a hinge shaft. The first hinge portion and the second hinge portion are respectively fastened to the connector and the connecting sleeve body. The hinge shaft passes through the second hinge portion, and the first hinge portion is sleeved on the hinge shaft. The first hinge portion is swayably arranged around the hinge shaft.

[0009] Furthermore, a flexible element is provided on the first connecting recess, and the flexible element is in close contact with the circumferential sidewall of the first rod and / or the second rod.

[0010] Furthermore, the fastening pin also includes a gripper, which is sleeved on and connected to the fastening shaft. The axial end of the gripper away from the fastening shaft is provided with a connecting hole for assembling external components.

[0011] Furthermore, the connecting sleeve body is provided with a first fastening hole, and the connecting member is provided with a second fastening hole, so that the first fastener passes through the first fastening hole and the second fastening hole to securely connect the connecting member and the connecting sleeve body.

[0012] Furthermore, there are multiple first fasteners, which are spaced apart along the circumferential direction of the connector and surround the second connecting recess.

[0013] Furthermore, a third connecting hole is provided on one side of the connector, and a fourth connecting hole is provided on the connecting sleeve body. The fourth connecting hole penetrates the first connecting recess away from the fastening pin. The fastening shaft of the fastening pin is threadedly connected to both the third and fourth connecting holes, and the fastening shaft of the fastening pin is rotatably inserted into the third and fourth connecting holes.

[0014] This utility model also provides a lawn mower, including a working head assembly, a second rod, a first rod, and the aforementioned connecting sleeve, wherein the second rod is connected to the working head assembly.

[0015] The technical solution provided by this utility model has the following advantages:

[0016] The connecting sleeve provided by this utility model adopts a hinge structure and a rotatable fastening pin, allowing the user to quickly move the fastening pin into and out of the first connecting recess by simply rotating the fastening shaft of the fastening pin. This eliminates the need for tools, enabling quick locking and unlocking of the first rod and easy adjustment of its angle and position. This direct manual operation greatly simplifies the adjustment process, avoids the time consumption and operational complexity associated with traditional screw and tool use, and significantly improves work efficiency. This solves the problem of time-consuming and laborious angle and position adjustment of the U-shaped handle of existing lawn mowers. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an exploded view of the connecting sleeve provided in Embodiment 1 of this utility model;

[0019] Figure 2 A three-dimensional structural diagram of the fastening pin of the connecting sleeve provided in Embodiment 1 of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the connecting sleeve body and hinge structure of the connecting sleeve provided in Embodiment 1 of this utility model from the first angle.

[0021] Figure 4 A three-dimensional structural diagram of the connecting sleeve body and hinge structure of the connecting sleeve provided in Embodiment 1 of this utility model from a second angle;

[0022] Figure 5 A three-dimensional structural diagram of the connector and the first fastener of the connecting sleeve provided in Embodiment 1 of this utility model;

[0023] Figure 6 A three-dimensional structural diagram of the hinge structure of the connecting sleeve provided in Embodiment 1 of this utility model;

[0024] Figure 7 This is a three-dimensional structural diagram of the lawn mower provided in Embodiment 2 of this utility model;

[0025] Figure 8 This is a three-dimensional structural diagram of the second rod, the first rod, and the connecting sleeve of the lawn mower provided in Embodiment 3 of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 101. Connecting sleeve body; 102. Connecting member; 103. Second connecting recess; 104. Fastening pin; 105. Fastening shaft; 106. First connecting recess; 132. First hinge part; 131. Second hinge part; 107. Hinge shaft; 108. Flexible member; 109. Holding member; 113. Connecting hole; 110. First fastening hole; 111. Second fastening hole; 112. First fastener; 202. Second rod; 203. First rod. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0030] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] This invention solves the problem that adjusting the angle and position of the U-shaped handle of existing lawn mowers is time-consuming and laborious.

[0032] Example 1

[0033] Please refer to Figures 1 to 6 This embodiment provides a connecting sleeve for connecting the first rod 203 and the second rod 202 of a lawnmower. The connecting sleeve includes: a connecting sleeve body 101; a connecting member 102 and a fastening pin 104. A first connecting recess 106 disposed on the connecting sleeve body 101, the connecting member 102 and the fastening pin 104 together form a connecting structure. The first rod 203 and the second rod 202 are both connected to the connecting sleeve through the connecting structure. The first connecting recess 106 is used to accommodate the first rod 203 and the second rod 202. The connecting member 102 is provided with a second connecting recess 103. 02 is hinged to the connecting sleeve body 101 via a hinge structure, so that the connecting member 102 rotates around the hinge axis 107 of the hinge structure to the second connecting recess 103 covering the first rod 203 and the second rod 202 in the first connecting recess 106 near the fastening pin 104; the fastening shaft 105 of the fastening pin 104 is rotatably passed through the connecting member 102 around its axis, so that it rotates into the first connecting recess 106 through the fastening shaft 105 to press the first connecting recess 106 and make the first connecting recess 106 fit tightly with the first rod 203 and the second rod 202.

[0034] The connecting sleeve in this embodiment includes a connecting sleeve body 101, two connecting members 102, and two fastening pins 104. The connecting sleeve body has two first connecting recesses 106, which are respectively used to accommodate the first rod 203 and the second rod 202 of the lawnmower. Each connecting member 102 is provided with a second connecting recess 103. Each connecting member 102 is hinged to the connecting sleeve body 101 via a hinge structure, allowing each connecting member 102 to rotate flexibly relative to the connecting sleeve body 101. Users can quickly align and cover the two second connecting recesses 103 onto the first rod 203 and the second rod 202 without using any tools, saving time and effort.

[0035] When each fastening shaft 105 rotates and penetrates into the first connecting recess 106, each fastening shaft 105 generates sufficient pressure to cause the two first connecting recesses 106 to fit tightly against the first rod 203 and the second rod 202, respectively, thereby achieving a secure lock. When it is necessary to adjust the angle or position of the first rod 203, simply rotate the two fastening shafts 105 in the opposite direction, causing each fastening shaft 105 to rotate away from the corresponding first connecting recess 106, so that each fastening shaft 105 no longer presses against the corresponding connector 102, and the two first connecting recesses 106 no longer fit tightly against the first rod 203 and the second rod 202. The first rod 203 can rotate around its axis to adjust the angle of the first rod 203 relative to the second rod 202; the connecting sleeve body 101 can reciprocate along the axial direction of the second rod 202 with the first rod 203 to adjust the position of the first rod 203.

[0036] Therefore, the connecting sleeve in this embodiment adopts a hinge structure and a rotatable fastening pin, allowing the user to quickly move the fastening pin into and out of the first connecting recess 106 by simply rotating the fastening shaft of the fastening pin. This allows for quick locking and unlocking of the first rod 203 without the need for tools, and easy adjustment of the angle and position of the first rod 203. This direct manual operation greatly simplifies the adjustment process, avoids the time consumption and operational complexity caused by the traditional use of screws and tools, and significantly improves work efficiency. This solves the problem that adjusting the angle and position of the U-shaped handle of the existing lawnmower is time-consuming and laborious.

[0037] Furthermore, the combination of connector 102 and fastening pin 104 not only simplifies the adjustment process but also enhances the overall stability of the lawn mower. Even under high-intensity, long-term use, this locking mechanism maintains the U-shaped handle's firmness and reliability, preventing breakage of the connecting sleeve or displacement of the U-shaped handle, significantly improving operational safety and efficiency.

[0038] Optionally, the first rod 203 is a U-shaped handle, and the axis of the first rod 203 refers to the central axis of the rod segment of the U-shaped handle that contacts the first connecting recess 106. The second rod 202 is a support rod for the lawn mower.

[0039] In this embodiment, a third connecting hole is provided on one side of the connector 102, and a fourth connecting hole is provided on the connecting sleeve body 101. The fourth connecting hole passes through the first connecting recess 106 away from the fastening pin 104. The fastening shaft 105 of the fastening pin 104 is threadedly connected to both the third connecting hole and the fourth connecting hole. The fastening shaft 105 of the fastening pin 104 is rotatably inserted into the third connecting hole and the fourth connecting hole.

[0040] Specifically, the fastening shaft 105 is a bolt. The fastening shaft 105 rotates into the third and fourth connecting holes, and by utilizing the self-locking effect of the thread, plus the physical pressing action of the bolt head on the connector 102, it effectively presses and locks the first connecting recess 106 and the second connecting recess 103.

[0041] In this embodiment, the hinge structure includes a first hinge portion 132, a second hinge portion 131, and a hinge shaft 107. The first hinge portion 132 and the second hinge portion 131 are respectively fastened to the connector 102 and the connecting sleeve body 101. The hinge shaft 107 passes through the second hinge portion 131, and the first hinge portion 132 is sleeved on the hinge shaft 107. The first hinge portion 132 is swayably arranged around the hinge shaft 107.

[0042] Specifically, the first hinge portion 132 and the second hinge portion 131 form a stable and secure connection with the connector 102 and the connecting sleeve body 101, respectively, ensuring the structural integrity of the connecting sleeve and the synchronous movement between components. The connector 102 is connected to the hinge shaft 107 through the first hinge portion 132, allowing the connector 102 to rotate freely as the first hinge portion 132 swings around the hinge shaft 107, so that the second connecting recess 103 can be quickly aligned and covered on the first rod 203 and / or the second rod 202.

[0043] In practice, the user can manually place the first rod 203 and / or the second rod 202 into the first connecting recess 106. At this time, the first connecting recess 106 partially contacts the first rod 203 and / or the second rod 202, but a firm connection has not yet been formed. Subsequently, by swinging the first hinge portion 132 around the hinge axis 107, the second connecting recess 103 on the connector 102 can be aligned with and cover the first rod 203 and / or the second rod 202, increasing the contact area between the second connecting recess 103 and the first rod 203 and / or the second rod 202 within the first connecting recess 106. This process essentially uses the swinging of the hinge structure to change the connector from an open state to a closed state, preparing for the locking of the first rod 203 and / or the second rod 202.

[0044] In this embodiment, a flexible member 108 is provided on the first connecting recess 106, and the flexible member 108 is closely fitted with the circumferential sidewall of the first rod 203 and / or the second rod 202.

[0045] Specifically, firstly, due to the elastic properties of the flexible component 108, it can adapt to the different diameters of the first rod 203 and the second rod 202, automatically filling the gap between them and the first connecting recess 106, thus providing a tighter connection interface. This tight fit greatly enhances the fixation of the first rod 203 and the second rod 202 in the connecting sleeve, ensuring the stability and reliability of the connection, especially in high-intensity and continuous working environments. Secondly, the buffering effect of the flexible component 108 absorbs the vibration and impact generated during the operation of the lawnmower, not only protecting the first rod 203 and the second rod 202 from damage and extending the service life of the lawnmower, but also providing the operator with a more comfortable grip experience.

[0046] Optionally, a mounting groove is provided on the first connecting recess 106 for mounting the flexible component 108.

[0047] In this embodiment, the fastening pin 104 also includes a gripping member 109, which is sleeved on the fastening shaft 105 and connected to the fastening shaft 105. The axial end of the gripping member 109 away from the fastening shaft 105 is provided with a connecting hole 113, which is used to assemble external components.

[0048] Specifically, firstly, by sleeved onto and connected to the fastening shaft 105, the grip 109 increases the contact area between the user and the fastening pin 104, allowing the user to easily tighten or unlock the fastening pin 104 by manipulating the grip 109, thus improving user comfort. Secondly, the grip 109 is located away from the connecting hole 113 at the end of the fastening shaft 105. The connecting hole 113 reduces the weight of the fastening pin 104 and the connecting sleeve, facilitating the movement of the connecting sleeve. Thirdly, the connecting hole 113 at the end of the fastening shaft 105 allows for the installation of external components (such as a hex wrench). When tightening the fastening pin 104 becomes difficult, external components can be used to continue tightening or unlocking the fastening pin 104.

[0049] This embodiment provides a lawn mower, including a working head assembly, a second rod 202, a first rod 203, and the aforementioned connecting sleeve, wherein the second rod 202 is connected to the working head assembly.

[0050] Example 2

[0051] Please refer to Figure 7This embodiment provides a connecting sleeve. When the first rod 203 is connected to the connecting sleeve through the connecting structure, the second connecting recess 103 of the connector 102 covers the second rod 202 and is fastened to the connecting sleeve body 101. The fastening shaft 105 rotates away from the first connecting recess 106 corresponding to the first rod 203, so that the first rod 203 can swing around the axis of the first rod 203.

[0052] The connecting sleeve in this embodiment includes a connecting sleeve body 101, two connecting pieces 102, and a fastening pin 104. The first rod 203 is connected to the connecting sleeve via a connecting structure. The connecting piece 102 corresponding to the second rod 202 is fastened to the connecting sleeve body 101. When the fastening shaft 105 rotates and penetrates into the first connecting recess 106, the fastening shaft 105 generates sufficient pressure, causing the first connecting recess 106 to form a tight fit with the first rod 203, thereby achieving a stable lock. When it is necessary to adjust the angle of the first rod 203, simply rotate the fastening shaft 105 in the opposite direction, causing the fastening shaft 105 to rotate away from the first connecting recess 106, so that the fastening shaft 105 no longer presses against the connecting piece 102 corresponding to the first rod 203, and the first connecting recess 106 no longer fits tightly with the first rod 203. The first rod 203 can then rotate around its axis to adjust the angle of the first rod 203 relative to the second rod 202.

[0053] In this embodiment, the connecting sleeve body 101 is provided with a first fastening hole 110, and the connecting member 102 is provided with a second fastening hole 111, so that the first fastener 112 passes through the first fastening hole 110 and the second fastening hole 111 to fasten the connecting member 102 and the connecting sleeve body 101.

[0054] In this embodiment, there are multiple first fasteners 112, which are spaced apart along the circumferential direction of the connector 102 and surround the second connecting recess 103.

[0055] Specifically, the first fastening hole 110 and the second fastening hole 111 provide a precise through-hole for the first fastener 112, ensuring a secure connection between the connector 102 corresponding to the second rod 202 and the connecting sleeve body 101, thereby guaranteeing the reliability of the connection between the first rod 203 and the second rod 202. Furthermore, the use of multiple first fasteners 112 increases the number of contact points between the connecting sleeve body 101 and the connector 102 corresponding to the second rod 202, making the connection between the two parts more uniform and robust. This effectively disperses external forces, preventing connection failure or component damage caused by excessive local stress. Even if one fastener fails or is not fully tightened, the other first fasteners 112 can still provide sufficient restraint to maintain the connection stability between the first rod 203 and the second rod 202, ensuring the lawnmower is in a safe state and protecting the operator from accidental injury.

[0056] Optionally, the first fastener 112 is a bolt.

[0057] This embodiment provides a lawn mower, including a working head assembly, a second rod 202, a first rod 203, and the aforementioned connecting sleeve, wherein the second rod 202 is connected to the working head assembly.

[0058] Example 3

[0059] Please refer to Figure 8 This embodiment provides a connecting sleeve. When the second rod 202 is connected to the connecting sleeve through the connecting structure, the second connecting recess 103 of the connector 102 covers the first rod 203 and is fastened to the connecting sleeve body 101, so that it can rotate away from the first connecting recess 106 corresponding to the second rod 202 through the fastening shaft 105, so that the connecting sleeve body 101 can reciprocate along the axial direction of the second rod 202.

[0060] In this embodiment, the connecting sleeve body 101 is provided with a first fastening hole 110, and the connecting member 102 is provided with a second fastening hole 111, so that the first fastener 112 passes through the first fastening hole 110 and the second fastening hole 111 to fasten the connecting member 102 and the connecting sleeve body 101.

[0061] In this embodiment, there are multiple first fasteners 112, which are spaced apart along the circumferential direction of the connector 102 and surround the second connecting recess 103.

[0062] The connecting sleeve in this embodiment includes a connecting sleeve body 101, two connecting pieces 102, and a fastening pin 104. The second rod 202 is connected to the connecting sleeve via a connecting structure. The connecting piece 102 corresponding to the first rod 203 is fastened to the connecting sleeve body 101. When the fastening shaft 105 rotates and penetrates into the first connecting recess 106, the fastening shaft 105 generates sufficient pressure to cause the first connecting recess 106 to form a tight fit with the second rod 202, thereby achieving a stable lock. When it is necessary to adjust the position of the first rod 203, simply rotate the fastening shaft 105 in the opposite direction to rotate it away from the first connecting recess 106. This prevents the fastening shaft 105 from pressing against the connecting piece 102 corresponding to the second rod 202, and prevents the first connecting recess 106 from being tightly fitted with the second rod 202. The connecting sleeve body 101 can then reciprocate along the axial direction of the second rod 202 to adjust the position of the first rod 203 relative to the second rod 202.

[0063] In this embodiment, the connecting sleeve body 101 is provided with a first fastening hole 110, and the connecting member 102 is provided with a second fastening hole 111, so that the first fastener 112 passes through the first fastening hole 110 and the second fastening hole 111 to fasten the connecting member 102 and the connecting sleeve body 101.

[0064] In this embodiment, there are multiple first fasteners 112, which are spaced apart along the circumferential direction of the connector 102 and surround the second connecting recess 103.

[0065] Specifically, the first fastening hole 110 and the second fastening hole 111 provide a precise through-hole for the first fastener 112, ensuring a secure connection between the connector 102 corresponding to the first rod 203 and the connecting sleeve body 101, thereby guaranteeing the reliability of the connection between the first rod 203 and the second rod 202. Furthermore, the use of multiple first fasteners 112 increases the number of contact points between the connecting sleeve body 101 and the connector 102 corresponding to the first rod 203, making the connection between the two parts more uniform and robust. This effectively disperses external forces, preventing connection failure or component damage caused by excessive local stress. Even if one fastener fails or is not fully tightened, the other first fasteners 112 can still provide sufficient restraint to maintain the connection stability between the first rod 203 and the second rod 202, ensuring the lawnmower is in a safe state and protecting the operator from accidental injury.

[0066] Optionally, the first fastener 112 is a bolt.

[0067] This embodiment provides a lawn mower, including a working head assembly, a second rod 202, a first rod 203, and the aforementioned connecting sleeve, wherein the second rod 202 is connected to the working head assembly.

[0068] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0069] 1. In this embodiment, the connector 102 of the connecting sleeve is hinged to the connecting sleeve body 101 through a hinge structure. The connector 102 can rotate flexibly relative to the connecting sleeve body 101. The user can quickly align and cover the second connecting recess 103 on the first rod 203 and / or the second rod 202 without using any tools, which is more time-saving and labor-saving.

[0070] 2. The connecting sleeve in this embodiment adopts a hinge structure and a rotatable fastening pin, which allows the user to quickly move the fastening pin into and out of the first connecting recess 106 by simply rotating the fastening shaft of the fastening pin. Without the aid of tools, the first rod 203 can be quickly locked and unlocked, and the angle and position of the first rod 203 can be easily adjusted. This direct manual operation method greatly simplifies the adjustment process, avoids the time consumption and operational complexity caused by the traditional use of screws and tools, and significantly improves work efficiency.

[0071] 3. In this embodiment, the connecting sleeve, through the combination of the connector 102 and the fastening pin 104, not only simplifies the adjustment process but also enhances the overall stability of the lawn mower. Even under high-intensity, long-term use scenarios, this locking mechanism can maintain the firmness and reliability of the U-shaped handle, avoiding breakage of the connecting sleeve or displacement of the U-shaped handle, significantly improving operational safety and efficiency.

[0072] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, those skilled in the art can make other variations or modifications without creative effort, and all such variations or modifications should fall within the protection scope of this utility model.

Claims

1. A connecting sleeve for connecting the first rod (203) and the second rod (202) of a lawn mower, characterized in that, The connecting sleeve includes: Connecting sleeve body (101); The connector (102) and the fastening pin (104) are disposed in the first connecting recess (106) of the connecting sleeve body (101). The connector (102) and the fastening pin (104) together form a connecting structure. The first rod (203) and / or the second rod (202) are connected to the connecting sleeve through the connecting structure. The first connecting recess (106) is used to accommodate the first rod (203) and / or the second rod (202). The connector (102) is provided with a second connecting recess (103). The connector (102) is hinged to the connecting sleeve body (101) through a hinge structure, so that the connector (102) rotates about the hinge axis (107) of the hinge structure until the second connecting recess (103) covers the first rod (203) and / or the second rod (202) in the first connecting recess (106) near the fastening pin (104). The fastening shaft (105) of the fastening pin (104) is rotatably passed through the connector (102) about its axis, so as to rotate into the first connecting recess (106) through the fastening shaft (105) to press the first connecting recess (106) and make the first connecting recess (106) fit tightly against the first rod (203) and / or the second rod (202).

2. The connecting sleeve according to claim 1, characterized in that, When the first rod (203) is connected to the connecting sleeve through the connecting structure, the second connecting recess (103) of the connector (102) covers the second rod (202) and is fastened to the body of the connecting sleeve (101) so that it can rotate away from the first connecting recess (106) corresponding to the first rod (203) through the fastening shaft (105) so that the first rod (203) can swing around the axis of the first rod (203).

3. The connecting sleeve according to claim 1, characterized in that, When the second rod (202) is connected to the connecting sleeve through the connecting structure, the second connecting recess (103) of the connector (102) covers the first rod (203) and is fastened to the connecting sleeve body (101) so that it can rotate away from the first connecting recess (106) corresponding to the second rod (202) through the fastening shaft (105) so that the connecting sleeve body (101) can reciprocate along the axial direction of the second rod (202).

4. The connecting sleeve according to claim 1, characterized in that, The hinge structure includes a first hinge portion (132), a second hinge portion (131), and a hinge shaft (107). The first hinge portion (132) and the second hinge portion (131) are respectively fastened to the connector (102) and the connecting sleeve body (101). The hinge shaft (107) passes through the second hinge portion (131), and the first hinge portion (132) is sleeved on the hinge shaft (107). The first hinge portion (132) is swayably arranged around the hinge shaft (107).

5. The connecting sleeve according to claim 1, characterized in that, A flexible member (108) is provided on the first connecting recess (106), and the flexible member (108) is in close contact with the circumferential sidewall of the first rod (203) and / or the second rod (202).

6. The connecting sleeve according to claim 1, characterized in that, The fastening pin (104) also includes a gripping member (109), which is sleeved on the fastening shaft (105) and connected to the fastening shaft (105). The axial end of the gripping member (109) away from the fastening shaft (105) is provided with a connecting hole (113), which is used to assemble external components.

7. The connecting sleeve according to claim 2, characterized in that, The connecting sleeve body (101) is provided with a first fastening hole (110), and the connecting member (102) is provided with a second fastening hole (111), so that the first fastener (112) passes through the first fastening hole (110) and the second fastening hole (111) to fasten the connecting member (102) and the connecting sleeve body (101).

8. The connecting sleeve according to claim 7, characterized in that, There are multiple first fasteners (112), and the multiple first fasteners (112) are spaced apart along the circumferential direction of the connector (102), and the multiple first fasteners (112) are arranged around the second connecting recess (103).

9. The connecting sleeve according to claim 1, characterized in that, A third connecting hole is provided on one side of the connector (102), and a fourth connecting hole is provided on the connecting sleeve body (101). The fourth connecting hole passes through the first connecting recess (106) away from the fastening pin (104). The fastening shaft (105) of the fastening pin (104) is threadedly connected to both the third connecting hole and the fourth connecting hole. The fastening shaft (105) of the fastening pin (104) is rotatably inserted into the third connecting hole and the fourth connecting hole.

10. A lawn mower, characterized in that, It includes a working head assembly, a second rod (202), a first rod (203), and a connecting sleeve according to any one of claims 1 to 9, wherein the second rod (202) is connected to the working head assembly.

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