Push rod folding structure and lawn mower
Through the design of the linkage shaft and operating parts, combined with the elastic reset component, the problem of poor adjustment stability of the push rod by the lawn machine is solved, and the stable folding and deployment operation of the push rod is achieved, which improves the safety and convenience of operation.
Patent Information
- Application Number
- CN202422507082.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-16
AI Technical Summary
The existing lawn machine push rods have poor stability during the adjustment process, especially the problem of inconsistent adjustment positions on both sides of the push rods due to uneven button control.
The design of the linkage shaft and the operating member is adopted. The linkage shaft is driven to expand and contract through the operating member. The locking end of the linkage shaft cooperates with the locking hole on the limiting plate to achieve stable adjustment of the push rod and ensure operational stability with the elastic reset assembly.
The push rod assembly is stable and reliable in the folding and deploying state, avoiding the problem of unstable button pressing and making the operation safer and more convenient.
Smart Images
Figure CN223182665U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of garden power tools, and in particular to a push rod folding structure and a lawn mower. Background Art
[0002] Most of the lawn mowers currently on the market can achieve height adjustment or folding storage of the push rod. On the one hand, it is convenient for users to use and improve the operating experience. On the other hand, the lawn mower occupies a large space, especially the push rod part. Therefore, when storing the lawn mower, the push rod is usually folded and stored to reduce the space occupied. When the push rod is adjusted in height or folded for storage, the main thing is to adjust the rotation angle of the push rod.
[0003] When the push rod is adjusting the angle, it mainly controls the movement of the connecting rod so that the end of the connecting rod is aligned with the different gear holes on the push rod, thereby realizing the angle adjustment of the push rod. Through understanding of relevant technologies, some adjustment structures mainly use the method of pressing the same button to control the movement of the connecting rod. When the pressing position is not appropriate, it may cause the button to shake left and right, and the force is uneven, which will affect the movement stability of the connecting rod, and then affect the adjustment state of the push rods on both sides, making the adjustment position on both sides of the push rod inconsistent. Utility Model Content
[0004] The purpose of at least one specific embodiment of the present utility model is to solve the defects of the prior art and provide a push rod folding structure and a lawn mower.
[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:
[0006] A push rod folding structure and a lawn mower, comprising:
[0007] A push rod assembly has one end hinged to the mounting body on which it is located.
[0008] Linkage shaft, which is installed on one side of the push rod assembly.
[0009] The operating member is installed at one end of the linkage shaft and is suitable for driving the linkage shaft to move telescopically.
[0010] One end of the linkage shaft is a locking end, and the push rod assembly is provided with one or more locking parts corresponding to the locking end. The operating member can drive the locking end of the linkage shaft close to the locking part, so that the push rod assembly is locked and fixed on the installation body.
[0011] When the operating member drives the linkage shaft to extend and retract, the operating direction of the operating member is consistent with the movement direction of the linkage shaft.
[0012] Furthermore, a mounting shell is provided on the mounting body, and the linkage shaft is arranged in the mounting shell.
[0013] One side of the operating member is connected to one end of the linkage shaft, and the other side of the operating member extends from the mounting shell to form a touch portion. When the touch portion is turned, the linkage shaft can be driven to move telescopically in the mounting shell.
[0014] Furthermore, an elastic reset component for controlling the reset of the linkage shaft is provided in the mounting shell, wherein the elastic reset component includes:
[0015] The fixed sleeve is fixed in the mounting shell and sleeved on the outer side of the linkage shaft.
[0016] The sliding sleeve is sleeved on the outer side of the linkage shaft and is fixedly connected to the linkage shaft.
[0017] The elastic member is sleeved on the outer side of the linkage shaft, one end of the elastic member is connected to the fixed sleeve, and the other end contacts the end of the sliding sleeve.
[0018] The limiting sleeve is fixed in the mounting shell and sleeved on the outside of the linkage shaft. The limiting sleeve is located on one side of the sliding sleeve.
[0019] The fixing sleeve and the limiting sleeve are respectively located on both sides of the sliding sleeve.
[0020] Furthermore, the mounting shell is provided with a mounting portion, which provides the operating member with space required for movement.
[0021] A mounting opening is provided on one side of the mounting part of the mounting shell, a first limiting part corresponding to the operating part is provided at the mounting opening, a second limiting part corresponding to the operating part is provided in the mounting part, and the first limiting part and the second limiting part are respectively located on both sides of the operating part.
[0022] Furthermore, the push rod assembly includes a push rod and a limiting plate installed at the end of the push rod.
[0023] The push rod is hinged to the installation body through a pin shaft, and the limiting plate is provided with one or more locking parts corresponding to the locking end.
[0024] The locking portion is configured as a locking hole on the limiting plate.
[0025] The locking hole includes at least a first locking hole and a second locking hole.
[0026] The push rod folding structure includes an unfolded state and a folded state. When in the unfolded state, the locking end of the linkage shaft is inserted into the first locking hole.
[0027] When the push rod folding structure is in the folded state, the locking end of the linkage shaft is inserted into the second locking hole.
[0028] When the push rod folding structure is transformed from the unfolded state to the folded state, the side surface of the limit plate contacts the locking end and presses the linkage shaft.
[0029] Furthermore, a switch assembly is provided on the installation body, and the switch assembly includes a safety switch and a power-off button connected thereto.
[0030] When the push rod assembly rotates to the folded state, the power-off button is pressed by the limit plate, thereby controlling the safety switch to be disconnected.
[0031] Furthermore, there are two operating members, each of which controls the movement of a linkage shaft on the same side thereof, wherein the movement directions of the operating member and the linkage shaft are opposite.
[0032] The beneficial technical effect of the handle locking structure provided by the present application compared to the prior art is that when the push rod assembly is adjusted between the folded state and the unfolded state, the movement of the connecting rod is controlled by simultaneously operating different operating members, and the operating direction of the operating member is consistent with the movement direction of the connecting rod. The structure is more stable and reliable, replacing the method of controlling the connecting rod through a button, and avoiding the problem of instability during the button pressing operation.
[0033] Another technical solution employed in this application is to provide a lawn mower including the aforementioned folding push rod structure. Due to the configuration of the aforementioned folding push rod structure, the push rod of the lawn mower can be stably adjusted to achieve height adjustment or folding for storage by toggling an operating member, providing convenient and quick operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0035] Figure 1 This is a schematic diagram of the push rod folding structure in Example 1 of the present utility model.
[0036] Figure 2 This is a partial schematic diagram of the push rod folding structure in Example 1 of the present utility model.
[0037] Figure 3 for Figure 2 Schematic diagram of the cross section along line BB.
[0038] Figure 4 This is a schematic diagram of some components of the push rod folding structure in Example 1 of the present utility model.
[0039] Figure 5 This is another partial schematic diagram of the push rod folding structure in Example 1 of the present utility model.
[0040] Figure 6 for Figure 1 Enlarged view of area A in the middle (schematic diagram of the structure when the push rod assembly is in the expanded state with the locking end cooperating with the first locking hole).
[0041] Figure 7 It is a structural schematic diagram of the push rod assembly in a folded state when the locking end cooperates with the second locking hole.
[0042] Figure 8 for Figure 2 Enlarged view of area C in the middle.
[0043] Figure 9 This is a schematic diagram of the expanded state of the push rod folding structure in Example 2 of the present utility model.
[0044] Figure 10 This is a schematic diagram of the folded state of the push rod folding structure in Example 2 of the present utility model. DETAILED DESCRIPTION
[0045] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.
[0046] Example 1
[0047] Reference Figure 1 、 Figure 2 , Figure 3 A push rod folding structure 100 includes a push rod assembly 10, one end of the push rod assembly 10 is hinged to the installation body 20 where it is located, a linkage shaft 30 is installed on one side of the push rod assembly 10, and an operating member 40 is installed at one end of the linkage shaft 30, suitable for driving the extension and retraction of the linkage shaft 30.
[0048] Reference Figure 4 The mounting body 20 is provided with a mounting shell 201, and the linkage shaft 30 and the operating member 40 are disposed within the mounting shell 201. One end of the linkage shaft 30 is a locking end 301, and the other end is connected to one side of the operating member 40. The other side of the operating member 40 extends within the mounting shell 201 and forms a trigger portion 401. When the trigger portion 401 is moved, the linkage shaft 30 can be driven to extend and retract within the mounting shell 201. The operating direction of the operating member 40 is consistent with the movement direction of the linkage shaft 30. In addition, the operating members 40 and the linkage shaft 30 are symmetrically arranged correspondingly, with two operating members 40 and two operating members 40 respectively provided. Each operating member 40 controls the movement of the linkage shaft 30 on the same side. The operating members 40 and the linkage shaft 30 move in opposite directions, making the structure stable and reliable.
[0049] The mounting shell 201 is provided with a mounting portion 202, which provides the space required for the operating member 40 to move. A mounting opening 203 is provided on one side of the mounting portion 202, and a first limiting portion 204 corresponding to the operating member 40 is provided at the mounting opening 203, so that the operating member 40 is stable and not loose at the mounting opening 203. A second limiting portion 205 corresponding to the operating member 40 is provided in the mounting portion 202 to prevent the operating member 40 from sliding excessively when sliding into the mounting shell 201. The first limiting portion 204 and the second limiting portion 205 are respectively located on both sides of the operating member 40.
[0050] Reference Figure 5 The mounting housing 201 includes an elastic reset assembly 50 for controlling the reset of the linkage shaft. The elastic reset assembly 50 comprises a fixed sleeve 501, an elastic member 502, a sliding sleeve 503, and a limiting sleeve 504. The fixed sleeve 501 is fixed within the mounting housing 201 and sleeves over the outside of the linkage shaft 30, preventing the linkage shaft 30 from shaking during extension and retraction. The sliding sleeve 503 sleeves over the outside of the linkage shaft 30 and is fixedly connected to the linkage shaft 30, sliding synchronously with the linkage shaft 30 during extension and retraction. The elastic member 502 sleeves over the outside of the linkage shaft 30, with one end connected to the fixed sleeve 501 and the other end contacting the end of the sliding sleeve 503. The limiting sleeve 504 is fixed within the mounting housing 201, i.e., on the mounting body 20, and sleeves over the outside of the linkage shaft 30. The limiting sleeve 504 is located on one side of the sliding sleeve 503, with one end of the sliding sleeve 503 contacting the limiting sleeve 504 to prevent the linkage shaft 30 from excessively extending and retracting. The operating member 40, the fixed sleeve 501, the elastic member 502, the sliding sleeve 503 and the limiting sleeve 504 are sequentially mounted on the linkage shaft 30. The fixed sleeve 501 and the limiting sleeve 504 are respectively located on both sides of the sliding sleeve 503. Therefore, when the linkage shaft 30 moves, one side of the sliding sleeve 503 will squeeze / reset the elastic member 502 toward the direction of the limiting sleeve 504, and the linkage shaft 30 is extended and retracted under the action of the elastic member 502.
[0051] Reference Figure 6 、 Figure 7The push rod assembly 10 includes a push rod 101 and a limiting plate 102 installed at the end of the push rod 101, wherein the push rod 101 is hinged to the mounting body 20 through a pin shaft 103, and the limiting plate 102 is provided with one or more locking parts 104 corresponding to the locking end 301, and the locking part 104 is constructed as a locking hole 105 on the limiting plate 102, and the locking hole 105 includes at least a first locking hole 106 and a second locking hole 107, wherein there are at least two first locking holes 106, which are used to adjust the height of the push rod assembly 10. When the locking end 301 is inserted into the first locking hole 106, the push rod assembly is fully unfolded. When inserted into the other first locking hole 106, the angle between the push rod assembly 101 and the mounting body 20 changes, thereby adjusting the height of the push rod 101, and when the locking end 301 is inserted into the second locking hole 107, the push rod assembly 10 can be folded and stored.
[0052] The push rod folding structure 100 has an expanded state and a folded state. In the expanded state, the locking end 301 of the linkage shaft 30 is inserted into the first locking hole 106. When the push rod folding structure 100 is in the folded state, the locking end 301 of the linkage shaft 30 is inserted into the second locking hole 107. When the push rod folding structure 100 transitions from the expanded state to the folded state, the side surface of the limiting plate 102 contacts the locking end 301 and compresses the linkage shaft 30.
[0053] In actual use, the push rod folding structure 100 is first connected and fixed to the linkage shaft 30, and then the elastic member 502 and the sliding sleeve 503 are sleeved on the linkage shaft 30. Then, the locking end 301 of the linkage shaft 30 is inserted into the limiting sleeve 504 of the mounting body 20, that is, inserted into the first locking hole 106 on the push rod assembly 10. After the fixing sleeve 501 is fixed, the mounting shell 201 is installed, and the assembly is completed on the linkage shaft 30 and the operating member 40. At this time, the push rod folding structure 100 is in the unfolded state. When the push rod assembly 10 needs to be adjusted, the trigger portion 401 on the operating member 40 is toggled, and the linkage shaft 30 moves inward, and the locking end 301 of the linkage shaft 30 exits the first locking hole 106. After rotating the push rod assembly 10, the operating member 40 can be released because the elastic member 502 cannot be reset due to the limit of the limiting plate 102 plane. When the push rod assembly 10 is rotated to the other first locking hole 106 or the second locking hole 107, the elastic member 502 can drive the linkage shaft 30 to reset, thereby locking the push rod assembly 10 and completing the adjustment. At this time, if the locking end 301 of the linkage shaft 30 is inserted into the other first locking hole 106, the height of the push rod assembly 10 is adjusted. If the locking end 301 of the linkage shaft 30 is inserted into the second locking hole 107, the push rod folding structure 100 is converted from the unfolded state to the folded state. The entire structure is stable and reliable, and the operation process is safe and convenient. This application replaces the method of controlling the connecting rod through a button, avoiding the instability problem during the button pressing operation.
[0054] In some embodiments, reference Figure 8 A switch assembly 60 is provided on the mounting body 20. The switch assembly 60 includes a safety switch 601 and a power-off button 602 connected thereto. When the push rod assembly 10 rotates to the folded state, the power-off button 602 is pressed by the limit plate 102, thereby controlling the safety switch 601 to be disconnected, ensuring safety after folding.
[0055] Example 2
[0056] Reference Figure 9 、 Figure 10 Based on the same technical concept, an embodiment of the present application provides a lawn mower 200, including the push rod folding structure 100 in the above embodiment, and the installation body 20 is constructed as the casing of the lawn mower. The lawn mower 200 correspondingly has the technical effect of the above push rod folding structure 100. When the push rod of the lawn mower 200 needs to be adjusted, the operating member 40 is turned to drive the linkage shaft 30 to adjust the locking part 104 inserted into the push rod assembly 10, and when the push rod folding structure 100 is in the folded state, the entire machine can be placed vertically, and its entire structure is stable and easy to operate.
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A push rod folding structure, comprising: A push rod assembly, one end of which is hinged to the mounting body on which it is located; a linkage shaft mounted on one side of the push rod assembly; An operating member, mounted on one end of the linkage shaft, adapted to drive the linkage shaft to telescopically move; It is characterized in that one end of the linkage shaft is a locking end, the push rod assembly is provided with one or more locking parts corresponding to the locking end, and the operating member can drive the locking end of the linkage shaft close to the locking part, so that the push rod assembly is locked and fixed on the mounting body; When the operating member drives the linkage shaft to extend and retract, the operating direction of the operating member is consistent with the moving direction of the linkage shaft.
2. The push rod folding structure according to claim 1, characterized in that: The mounting body is provided with a mounting shell, and the linkage shaft is arranged in the mounting shell; One side of the operating member is connected to one end of the linkage shaft, and the other side of the operating member extends from the mounting shell to form a touch portion. When the touch portion is turned, the linkage shaft can be driven to move telescopically in the mounting shell.
3. The push rod folding structure according to claim 2, characterized in that: An elastic reset component for controlling the reset of the linkage shaft is provided in the mounting shell, wherein the elastic reset component includes: A fixed sleeve, which is fixed in the mounting shell and sleeved on the outer side of the linkage shaft; A sliding sleeve, which is sleeved on the outer side of the linkage shaft and fixedly connected to the linkage shaft; an elastic member, which is sleeved on the outer side of the linkage shaft, wherein one end of the elastic member is connected to the fixed sleeve and the other end contacts the end of the sliding sleeve; A limiting sleeve, which is fixed in the mounting shell and sleeved on the outer side of the linkage shaft, and the limiting sleeve is located on one side of the sliding sleeve; The fixing sleeve and the limiting sleeve are respectively located on both sides of the sliding sleeve.
4. The push rod folding structure according to claim 2, characterized in that: The mounting shell is provided with a mounting portion, and the mounting portion provides the operating member with a space required for movement; A mounting opening is provided on the mounting shell on one side of the mounting portion, a first limiting portion corresponding to the operating member is provided at the mounting opening, a second limiting portion corresponding to the operating member is provided inside the mounting portion, and the first limiting portion and the second limiting portion are respectively located on both sides of the operating member.
5. The push rod folding structure according to any one of claims 1 to 4, characterized in that: The push rod assembly includes a push rod and a limit plate installed at the end of the push rod; Wherein, the push rod is hinged to the installation body through a pin shaft, and the limiting plate is provided with one or more locking parts corresponding to the locking end.
6. The push rod folding structure according to claim 5, characterized in that: The locking portion is configured as a locking hole on the limiting plate.
7. The push rod folding structure according to claim 6, characterized in that: The locking hole comprises at least a first locking hole and a second locking hole; The push rod folding structure includes an unfolded state and a folded state. When in the unfolded state, the locking end of the linkage shaft is inserted into the first locking hole; When the push rod folding structure is in a folded state, the locking end of the linkage shaft is inserted into the second locking hole; During the transition of the push rod folding structure from the unfolded state to the folded state, the side surface of the limiting plate contacts the locking end and presses the linkage shaft.
8. The push rod folding structure according to claim 5, characterized in that: The mounting body is provided with a switch assembly, which includes a safety switch and a power-off button connected thereto; When the push rod assembly rotates to the folded state, the power-off button is pressed by the limiting plate, thereby controlling the safety switch to be disconnected.
9. The push rod folding structure according to claim 1, characterized in that: There are two operating members, each of which controls the movement of the linkage shaft on the same side thereof, wherein the movement directions of the operating member and the linkage shaft are opposite.
10. A lawn mower, characterized in that: The push rod folding structure comprises the push rod folding structure according to any one of claims 1 to 9, wherein the mounting body is constructed as a housing of the lawn mower.