Handheld nut picking machine with buffering function

Abstract

This utility model discloses a handheld nut harvester with a cushioning function. The utility model includes a handheld part, a connecting rod, and a working part. The handheld part and the working part are connected by the connecting rod. A first cushioning mechanism for reducing impact force is provided on the connecting rod. The first cushioning mechanism is sleeved on the outside of the connecting rod, and a positioning ring is fixed inside the first cushioning mechanism on the connecting rod. The two ends of the first cushioning mechanism abut against the positioning ring via a first spring. This utility model can achieve dual cushioning for both the left and right hands. The dual cushioning structure significantly improves vibration attenuation, reduces the transmission of vibration to the user, provides better cushioning and shock absorption, improves operating comfort, reduces user fatigue, and further improves harvesting efficiency. Furthermore, the cushioning mechanism reduces the risk of wear and damage to various components caused by high-frequency impacts, extending the overall service life of the harvester.

Description

Technical Field

[0001] This utility model relates to a handheld nut harvester, and more particularly to a handheld nut harvester with a buffer function. Background Technology

[0002] In agricultural production, handheld nut harvesters are commonly used nut-picking tools, and their ease of use and operational comfort are crucial. Currently, all existing handheld nut harvesters on the market include a handheld part and a harvesting part. Chinese utility model patent CN 222548071 U discloses a hand-held nut harvester's hand cushioning mechanism, specifically disclosing a hand-held part and a harvesting part. The hand cushioning mechanism includes a limiting plate slidably disposed on the upper end of the handheld part and a fixing rod disposed within the inner cavity of the handheld part; a grip handle is disposed above the limiting plate, with both ends of the grip handle passing through the limiting plate and fitted onto the fixing rod; a first fixing block is disposed within the inner cavity of the handheld part; the fixing rod passes through the first fixing block and has springs fitted on both sides, with one end of the spring connected to the end of the grip handle and the other end of the spring connected to the first fixing block. However, this type of hand cushioning mechanism suffers from insufficient cushioning performance. When users are harvesting, some of the vibrations generated by the machine are still directly transmitted to the hand. Prolonged use can easily lead to hand fatigue, affecting harvesting efficiency and experience. Summary of the Invention

[0003] The purpose of this invention is to provide a handheld nut harvester with a cushioning function. This invention provides dual cushioning for both the left and right hands, offering better shock absorption, reducing user fatigue, and improving stability and harvesting efficiency.

[0004] The technical solution of this utility model is as follows: A handheld nut harvester with a buffer function includes a handheld part, a connecting rod, and a working part. The handheld part and the working part are connected by the connecting rod. The characteristic is that the connecting rod is provided with a first buffer mechanism for reducing impact force. The first buffer mechanism is sleeved on the outside of the connecting rod. A positioning ring is fixed inside the first buffer mechanism on the connecting rod. The two ends of the first buffer mechanism abut against the positioning ring through a first spring.

[0005] In the aforementioned handheld nut harvester with buffer function, the first buffer mechanism includes a housing sleeved outside the connecting rod, and a receiving groove between the housing and the connecting rod; the positioning ring is disposed in the receiving groove; the outer end face of the receiving groove is provided with an upper inner step, the inner end face of the receiving groove is provided with a lower inner step, and the first spring is respectively disposed between the upper inner step and the positioning ring, and between the lower inner step and the positioning ring.

[0006] In the aforementioned handheld nut harvester with a cushioning function, a horn-shaped part is provided on the outer shell near the handheld part, and the end of the handheld part is accommodated in the horn-shaped part.

[0007] In the aforementioned handheld nut harvester with buffer function, the outer shell is composed of two pieces, a convex shell and a concave shell, which fit together. The inner edge of the convex shell is provided with a first connecting plate facing outward, and the first connecting plate is provided with multiple through connecting holes. The inner edge of the concave shell is provided with a recessed second connecting plate facing inward, and the second connecting plate is provided with multiple connecting protrusions that are adapted to the connecting holes.

[0008] In the aforementioned handheld nut harvester with buffer function, the distance between the upper inner step, lower inner step, and limiting step of the outer shell and the connecting rod is smaller than the size of the first spring.

[0009] In the aforementioned handheld nut harvester with buffer function, the upper part of the handheld part is provided with a fixed rod, the two sides of the fixed rod are provided with second springs, the second springs are provided with a second buffer mechanism, and the upper part of the second buffer mechanism is connected to a grip handle.

[0010] In the aforementioned handheld nut harvester with buffer function, the second buffer mechanism includes a slider that passes through a fixed rod, a third connecting plate above the slider, a limiting plate above the third connecting plate, a limiting plate connecting block above the limiting plate, and the limiting plate connecting block being connected and fixed to the grip handle.

[0011] In the aforementioned handheld nut harvester with buffer function, the slider has a passage gap inside, a linear bearing is installed in the passage gap, the linear bearing is sleeved on the fixed rod, and the second spring is set on both sides of the slider.

[0012] In the aforementioned handheld nut harvester with buffer function, a dustproof plate is provided between the limiting plate and the second buffer mechanism. The dustproof plate is composed of two pieces, and the connecting part of the dustproof plate is provided with a limiting plate groove, which is higher than the dustproof plate itself.

[0013] In the aforementioned handheld nut harvester with buffer function, a handle slide groove is provided above the second buffer mechanism, the bottom of the dustproof plate is set in the handle slide groove, and the top of the third connecting plate is slidably set in the slide groove between the dustproof plate and the limiting plate.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This utility model includes a hand-held part, a connecting rod, and a working part. The hand-held part and the working part are connected by the connecting rod. The connecting rod is provided with a first buffer mechanism for reducing impact force. The first buffer mechanism is sleeved on the outside of the connecting rod. A positioning ring is fixed inside the first buffer mechanism on the connecting rod. The two ends of the first buffer mechanism abut against the positioning ring through a first spring, providing cushioning for the user's hand holding the first buffer mechanism. The upper part of the handheld part is equipped with a fixed rod, and second springs are provided on both sides of the fixed rod. A second buffer mechanism is provided between the second springs, and a grip handle is connected to the upper part of the second buffer mechanism. The second buffer mechanism includes a slider that passes through the fixed rod, a third connecting plate above the slider, a limiting plate above the third connecting plate, and a limiting plate connecting block above the limiting plate. The limiting plate connecting block is connected and fixed to the grip handle, providing cushioning for the user's hand holding the grip handle. The first buffer mechanism set on the connecting rod can effectively absorb part of the impact force generated during operation when picking nuts through the cooperation of the positioning ring and the first spring. At the same time, the handheld part uses the slider, fixed rod and second spring to form a secondary buffer. The double buffer structure of the left and right hands significantly improves the vibration attenuation effect, reduces the transmission of vibration to the user, improves the operating comfort, and thus further improves the picking efficiency. In addition, the setting of the buffer mechanism can reduce the risk of wear and damage to various components caused by high-frequency impact and extend the overall service life of the harvester.

[0016] 2. The outer shell of this utility model consists of two mating pieces, a convex shell and a concave shell. A first connecting plate is provided on the outward-facing inner edge of the convex shell, and this first connecting plate has multiple through-holes. A second connecting plate is provided on the inward-facing inner edge of the concave shell, and this second connecting plate fits into the first connecting plate. This second connecting plate has multiple connecting protrusions that mate with the connecting holes. Compared to existing integrated shells, the split design of this outer shell makes the assembly and disassembly of the buffer mechanism more convenient, facilitating subsequent inspection or replacement of internal parts such as springs, reducing maintenance costs and time. The mating of the first and second connecting plates, and the mating of the connecting holes with the connecting protrusions, prevents relative displacement between the convex and concave shells during use, ensuring the integrity and stability of the outer shell structure.

[0017] 3. The outer shell of this utility model is provided with a horn part near the hand-held part. The end of the hand-held part is accommodated in the horn part and is adapted to the top of the hand-held part but does not contact it. While ensuring the stability of the structural connection, it avoids the two from directly contacting each other and causing additional friction or vibration. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a magnified view of a portion of the first buffer mechanism.

[0020] Figure 3This is a magnified view of a portion of the outer shell.

[0021] Figure 4 This is a structural diagram of the handheld part;

[0022] Figure 5 This is a schematic diagram of the second buffer mechanism.

[0023] Figure 6 This is a magnified view of a portion of the second buffer mechanism.

[0024] Figure 7 This is a magnified view of a portion of the limiting plate.

[0025] The labels in the attached diagram are as follows: 101-Handheld part, 11-Second buffer mechanism, 102-Limiting plate, 103-Third connecting plate, 104-Slider, 105-Limiting plate connecting block, 106-Holding handle, 107-Passing gap, 108-Linear bearing, 109-Fixing rod, 110-Second spring, 111-Dustproof plate, 112-Handle slide groove, 113-Limiting plate slide groove, 201-Connecting rod, 202-First buffer mechanism, 203-Positioning ring, 204-First spring, 205-Outer shell, 2051-Receiving groove, 206-Upper inner step, 207-Lower inner step, 208-Convex shell, 209-Concave shell, 210-First connecting plate, 211-Speaker part, 212-Connecting hole, 213-Second connecting plate, 215-Connecting protrusion, 301-Working part. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0027] Example: A handheld nut harvester with a buffer function, configured as follows Figure 1-7As shown, the device includes a handheld part 101, a connecting rod 201, and a working part 301. The handheld part 101 and the working part 301 are connected by the connecting rod 201. The connecting rod 201 is provided with a first buffer mechanism 202 for reducing impact force. The first buffer mechanism 202 is sleeved on the outside of the connecting rod 201. A positioning ring 203 is fixed inside the first buffer mechanism 202 on the connecting rod 201. The two ends of the first buffer mechanism 202 abut against the positioning ring 203 via a first spring 204. The first buffer mechanism 202 includes a housing 205 sleeved on the outside of the connecting rod 201. A receiving groove 2051 is provided between the 5 and the connecting rod 201; a positioning ring 203 is disposed in the receiving groove 2051, the outer end face of the receiving groove 2051 is provided with an upper inner step 206, and the inner end face of the receiving groove 2051 is provided with an inner protrusion of a lower inner step 207; a first spring 204 is respectively disposed between the upper inner step 206 and the positioning ring 203, and between the lower inner step 207 and the positioning ring 203. Through the cooperation of the positioning ring 203 and the first spring 204, part of the impact force received by the user's hand holding the first buffer mechanism 202 during the work of picking nuts can be effectively absorbed. The outer shell 205 is made of silicone, which is soft and comfortable to the touch and has good shock absorption and anti-slip properties, further improving user comfort. The top of the outer shell 205 is rounded, which conforms to the curve of the hand, reducing hand friction and stress concentration, and improving grip comfort to enhance efficiency. A horn-shaped part 211 is provided near the handgrip of the outer shell 205, and the end of the handgrip 101 is accommodated within the horn-shaped part 211, with the horn-shaped part 211 and the top of the handgrip 101 aligned. The two parts are fitted but not in contact, ensuring structural connection stability while avoiding direct contact that could cause additional friction or vibration. The outer shell 205 is composed of two mating parts: a convex shell 208 and a concave shell 209. The inner edge of the convex shell 208 has a first connecting plate 210 extending outward. The two ends of the first connecting plate 210 have limiting steps flush with the upper inner step 206 and the lower inner step 207. The thickness of the first connecting plate 210 is thinner than that of the outer shell 205, and it has multiple through connecting holes 212. The inner edge of the concave shell 209 has a recessed second connecting plate 213 extending inward. The second connecting plate 213 fits into the first connecting plate 210. The two ends of the second connecting plate 213 have grooves that fit the limiting steps, and it has multiple connecting protrusions 215 that fit the connecting holes 212. Compared to the existing integrated housing, the split design of housing 205 makes the disassembly and assembly of the buffer mechanism more convenient, facilitating the subsequent inspection or replacement of internal parts such as springs, and reducing maintenance costs and time. The first connecting plate 210 and the second connecting plate 213 fit together, the limiting step fits together with the groove, and the connecting hole 212 fits together with the connecting protrusion 215, which can prevent relative displacement between the convex shell 208 and the concave shell 209 during use, ensuring the integrity and stability of the housing 205 structure.The distance between the upper inner step 206, the lower inner step 207 and the limiting step of the outer shell 205 and the surface of the connecting rod 201 is smaller than the size of the first spring 204, so as to prevent the first spring 204 from detaching from the outer shell 205 during the movement.

[0028] like Figure 4-7 As shown: The upper part of the handheld part 101 is provided with a fixed rod 109, and the two sides of the fixed rod 109 are provided with second springs 110. A second buffer mechanism 11 is provided between the second springs 110. The upper part of the second buffer mechanism 11 is connected to the grip handle 106. The second buffer mechanism 11 includes a slider 104 passing through the fixed rod. A third connecting plate 103 is provided above the slider 104. The third connecting plate 103 is inverted triangular in shape. This structure allows the grip handle to be held in a specific position when there is no external force. A limiting plate 102 is provided above the third connecting plate 103. A limiting plate connecting block 105 is provided above the limiting plate 102. The limiting plate connecting block 105 is connected and fixed to the grip handle 106. The outer layer of the grip handle 106 is made of silicone material, which further improves the user's grip comfort and has a certain anti-slip performance, which helps to increase the stability of the grip. The slider 104 has a passage gap 107 inside, and a linear bearing 108 is installed inside the passage gap 107. The linear bearing 108 is sleeved on the fixed rod 109. Second springs 110 are installed on the fixed rods 109 on both sides of the slider 104 to provide cushioning for the user's hand holding the handle 106. A dustproof plate 111 is provided between the limiting plate 102 and the second buffer mechanism 11. The dustproof plate 111 is composed of two pieces. The connecting part of the dustproof plate 111 has a limiting plate groove 113. The limiting plate groove 113 is higher than the dustproof plate 111 itself, which can effectively prevent dust and debris from entering the interior of the first hand grip, avoid internal parts from being worn or jammed due to contamination, and extend the service life of the equipment. The handle 101 is also provided with a handle slide groove 112 above it. The bottom of the dustproof plate 111 is set in the handle slide groove 112. The top of the third connecting plate 103 is slidably set in the dustproof plate 111 and the limiting plate slide groove 113, so that the sliding range of the limiting plate 102 is larger and more stable, and the safety of the harvester is improved.

[0029] When the harvester starts working, the first buffer mechanism 202 set on the connecting rod 201, through the cooperation of the positioning ring 203 and the first spring 204, can effectively absorb part of the impact force on the user's hand when holding the first buffer mechanism 202 during harvesting. At the same time, the second buffer mechanism 11 of the hand forms a secondary buffer by using the slider 104, the fixed rod 109 and the second spring 110 to provide cushioning for the user's hand holding the handle 106. The double buffer structure of the left and right hands significantly improves the vibration attenuation effect, reduces the transmission of vibration to the user, improves the comfort of operation, and avoids the impact during use from affecting the user's hand and causing numbness, which could lead to the harvester slipping out of the hand and damaging the precision parts inside the harvester. Therefore, it further improves the harvesting efficiency, and the setting of the buffer mechanism can reduce the risk of wear and damage to various components caused by high-frequency impact, extend the overall service life of the harvester, and enhance stability and safety.

[0030] Work process

[0031] When the harvester is not in operation, the handle 106 and the first buffer mechanism 202 are in their initial positions, and the first spring 204 and the second spring 110 are in their natural state, without being compressed or stretched.

[0032] When the harvester starts working, the movement and vibration of the internal mechanical components of the handheld part 101 will generate an inertial impact force. At this time, the grip handle 106 will slide along the fixed rod 109 through the slider 104 and the linear bearing 108 according to the inertial impact force, and at the same time drive the limiting plate 102 to slide in the limiting plate groove 113, providing cushioning for the user's hand holding the grip handle 106; at the same time, the outer shell 205 will slide along the connecting rod 201 according to the inertial impact force, providing cushioning for the user's hand holding the first buffer mechanism 202.

[0033] During the sliding motion of the handle 106 and the first buffer mechanism 202, the first spring 204 and the second spring 110 begin to function. The first spring 204 and the second spring 110 are compressed, absorbing and buffering inertial impact forces through their elastic potential energy, reducing damage to the precision parts inside the handgrip 101. Simultaneously, the buffering effect of the first spring 204 and the second spring 110 is also transmitted to the user's left and right hands, reducing hand vibration and impact, and improving comfort during the harvesting process.

[0034] When the inertial impact force disappears or weakens, the first spring 204 and the second spring 110 begin to return to their original length, and through their elasticity, push the grip handle 106 along the fixed rod 109 and the outer shell 205 along the connecting rod 201 back to the initial position.

[0035] In summary, this invention provides dual cushioning for both the left and right hands, offering better shock absorption and reducing user fatigue, improving stability and harvesting efficiency, avoiding damage to the harvester from inertial impacts, and extending its service life.

Claims

1. A handheld nut harvester with a buffer function, comprising a handheld part (101), a connecting rod (201), and a working part (301), wherein the handheld part (101) and the working part (301) are connected by the connecting rod (201), characterized in that: The connecting rod (201) is provided with a first buffer mechanism (202) for reducing impact force. The first buffer mechanism (202) is sleeved on the outside of the connecting rod (201). A positioning ring (203) is fixed inside the first buffer mechanism (202) on the connecting rod (201). The two ends of the first buffer mechanism (202) abut against the positioning ring (203) through a first spring (204) respectively.

2. The handheld nut harvester with buffer function according to claim 1, characterized in that: The first buffer mechanism (202) includes a housing (205) sleeved on the outside of the connecting rod (201), and a receiving groove (2051) between the housing (205) and the connecting rod (201); the positioning ring (203) is disposed in the receiving groove (2051); the outer end face of the receiving groove (2051) is provided with an upper inner step (206), the inner end face of the receiving groove (2051) is provided with a lower inner step (207), and the first spring (204) is respectively disposed between the upper inner step (206) and the positioning ring (203), and between the lower inner step (207) and the positioning ring (203).

3. The handheld nut harvester with buffer function according to claim 2, characterized in that: The outer casing (205) has a horn section (211) near the handgrip, and the end of the handgrip (101) is housed in the horn section (211).

4. The handheld nut harvester with buffer function according to claim 2, characterized in that: The outer shell (205) is composed of two pieces, a convex shell (208) and a concave shell (209), which fit together. The inner edge of the convex shell (208) is provided with a first connecting plate (210) facing outward, and the first connecting plate (210) is provided with a plurality of through connecting holes (212). The inner edge of the concave shell (209) is provided with a recessed second connecting plate (213), and the second connecting plate (213) is provided with a plurality of connecting protrusions (215) that are adapted to the connecting holes (212).

5. The handheld nut harvester with buffer function according to claim 4, characterized in that: The distance between the upper inner step (206) and the lower inner step (207) of the outer shell (205) and the surface of the connecting rod (201) is smaller than the size of the first spring (204).

6. The handheld nut harvester with buffer function according to claim 1, characterized in that: The upper part of the handheld part (101) is provided with a fixing rod (109), and the two sides of the fixing rod (109) are provided with second springs (110). A second buffer mechanism (11) is provided between the second springs (110), and a grip handle (106) is connected to the upper part of the second buffer mechanism (11).

7. The handheld nut harvester with buffer function according to claim 6, characterized in that: The second buffer mechanism (11) includes a slider (104) passing through a fixed rod, a third connecting plate (103) above the slider (104), a limiting plate (102) above the third connecting plate (103), a limiting plate connecting block (105) above the limiting plate (102), and the limiting plate connecting block (105) is connected and fixed to the grip handle (106).

8. The handheld nut harvester with buffer function according to claim 7, characterized in that: The slider (104) has a passage gap (107) inside, and a linear bearing (108) is provided in the passage gap (107). The linear bearing (108) is sleeved on the fixed rod (109), and the second spring (110) is provided on both sides of the slider (104).

9. The handheld nut harvester with buffer function according to claim 7, characterized in that: A dustproof plate (111) is provided between the limiting plate (102) and the second buffer mechanism (11). The dustproof plate (111) is composed of two pieces. The connecting part of the dustproof plate (111) is provided with a limiting plate groove (113). The limiting plate groove (113) is higher than the dustproof plate (111) itself.

10. The handheld nut harvester with buffer function according to claim 9, characterized in that: The second buffer mechanism (11) is provided with a handle slide groove (112) above it. The bottom of the dustproof plate (111) is set in the handle slide groove (112). The top of the third connecting plate (103) is slidably set in the dustproof plate (111) and the limiting plate slide groove (113).

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