CN110885038A - Fork and fork dress spacing subassembly - Google Patents
Fork and fork dress spacing subassembly Download PDFInfo
- Publication number
- CN110885038A CN110885038A CN201911137558.3A CN201911137558A CN110885038A CN 110885038 A CN110885038 A CN 110885038A CN 201911137558 A CN201911137558 A CN 201911137558A CN 110885038 A CN110885038 A CN 110885038A
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- fork
- limiting
- limiting part
- trigger
- lever structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/18—Load gripping or retaining means
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Pallets (AREA)
Abstract
The invention relates to a pallet fork and a fork-mounted limiting assembly, wherein the pallet fork comprises a fork arm, an installation cavity is formed in the fork arm, a limiting part and a triggering part are installed in the installation cavity, and a transmission structure is arranged between the limiting part and the triggering part; the weight of the limiting part is greater than that of the trigger part, so that the limiting part can enable the trigger part to protrude upwards from the installation cavity through the transmission structure by means of the self weight and be located at the high position of the limiting part; or a reset spring is arranged in the mounting cavity, and the trigger part is upwards protruded out of the mounting cavity and positioned at the high position of the limiting part under the action of the reset spring; when the fork arm is inserted into the insertion pipe of the pallet and upwards holds up the pallet, the upper wall surface of the insertion pipe is pressed against the trigger part to enable the trigger part to move downwards, the trigger part drives the limiting part to move upwards through the transmission structure in the moving downwards process and enables the upper end of the limiting part to protrude out of the avoiding hole in the pallet, and therefore horizontal movement of the pallet is limited, and the pallet is prevented from moving on the pallet when in use.
Description
Technical Field
The invention relates to a pallet fork and a fork-mounted limiting assembly.
Background
The forklift is a common goods transfer device in the prior art, the fork of the forklift is matched with the tray with the insertion pipe for use, after the fork is inserted into the insertion pipe of the tray, the driving device on the forklift drives the fork to move upwards to pick up the tray and goods on the tray, and the forklift is in a starting state and vibrates, so that the forklift is difficult to keep at a constant speed in the using process and has the condition of uneven road surface, which can cause the tray to slide on the fork with the goods thereon, and in severe cases, the tray can take the goods on the tray to separate from the fork and fall off, thereby causing economic loss.
Disclosure of Invention
The invention aims to provide a pallet fork, and the pallet fork is used for solving the technical problem that in the prior art, when a pallet fork is inserted into a trusteeship of the pallet to drive the pallet to move, the pallet can slide on the pallet fork and even be separated from the pallet fork. Simultaneously, the fork-mounted limiting assembly is provided to solve the technical problem that the tray can slide on the fork or even be separated from the fork in the prior art.
The pallet fork adopts the following technical scheme:
a pallet fork, comprising:
the fork arm is provided with an installation cavity, a limiting part and a triggering part are installed in the installation cavity, and a transmission structure is arranged between the limiting part and the triggering part;
the weight of the limiting part is greater than that of the trigger part, so that the limiting part can enable the trigger part to protrude upwards from the installation cavity through the transmission structure by means of the self weight and be located at the high position of the limiting part;
or a reset spring is arranged in the mounting cavity, and the trigger part protrudes out of the mounting cavity upwards and is positioned at the high position of the limiting part under the elastic action of the reset spring on the trigger part, the limiting part or the transmission structure;
when the fork arm is inserted into the insertion pipe of the tray and the tray is upwards supported, the upper wall surface of the insertion pipe presses the trigger part to enable the trigger part to move downwards, and the trigger part drives the limiting part to move upwards through the transmission structure in the moving downwards process and enables the upper end of the limiting part to protrude out of the avoiding hole in the tray.
The invention has the beneficial effects that: when the pallet fork is used, the trigger piece can move downwards under the pressing action of the upper pipe wall of the insertion pipe when the pallet fork moves upwards and picks up the pallet, and then the limiting piece is driven to move upwards through the transmission structure connected between the trigger piece and the limiting piece and enters the avoidance hole in the pallet, so that the pallet is limited, and the pallet is prevented from moving on the pallet fork when in use; and when the fork is moved down after the use is finished, the limiting part can be automatically moved down to be separated from the avoiding hole on the insertion pipe under the action of the weight of the limiting part or the reset spring, so that the limiting is released, and the use is convenient.
Further, the transmission structure is a lever structure. The lever structure is adopted, the structure is simple, the cost is low, and the transmission is reliable.
Furthermore, a limiting structure for limiting the rotation angle of the lever structure is arranged in the mounting cavity, so that one end, close to the limiting part, of the lever structure is not lower than the lower surface of the fork arm. The arrangement can prevent interference between one end of the lever structure close to the limiting arm and the insertion pipe when the fork is inserted into or moved out of the insertion pipe.
Furthermore, one end of the lever structure, which is close to the limiting part, drives the limiting part to move up and down, one end of the lever structure, which is far away from the limiting part, is provided with a trigger, and the trigger and the end of the lever structure are integrally formed. The arrangement is equivalent to that one end of the lever structure, which is far away from the limiting part, directly forms the trigger part, and the structure is simple.
Furthermore, a reset spring is installed in the installation cavity, the reset spring acts on the lever structure, and the elastic force of the reset spring on the lever structure enables the lever structure to tilt at one end far away from the limiting part. The limit part and the return spring can be used for combined action, and the limit can be reliably released.
Further, the return spring is a torsion spring. And the structure is simple by adopting the torsion spring.
Furthermore, the lever structure and the limiting part are separated from each other, and the mounting cavity is provided with a cavity wall for guiding the limiting part to move in the up-down direction. By the arrangement, a connecting structure is not needed to be arranged between the lever structure and the limiting part, the structure is simple, and the assembly is convenient and the assembly cost is low.
Furthermore, the upper port of the cavity wall for guiding the limiting part to move along the up-down direction forms a closing structure to prevent the limiting part from being separated from the installation cavity. The limiting block is arranged in the avoiding hole, so that the limiting block can be prevented from being separated from the avoiding hole when in use, the limiting reliability is guaranteed, and meanwhile the limiting block can be prevented from being lost.
The fork-mounted limiting assembly adopts the following technical scheme:
fork dress spacing subassembly, including fork and tray, the intubate has on the tray, and the last pipe arm of intubate has dodges the hole, and the fork includes:
the fork arm is provided with an installation cavity, a limiting part and a triggering part are installed in the installation cavity, and a transmission structure is arranged between the limiting part and the triggering part;
the weight of the limiting part is greater than that of the trigger part, so that the limiting part can enable the trigger part to protrude upwards from the installation cavity through the transmission structure by means of the self weight and be located at the high position of the limiting part;
or a reset spring is arranged in the mounting cavity, and the trigger part protrudes out of the mounting cavity upwards and is positioned at the high position of the limiting part under the elastic action of the reset spring on the trigger part, the limiting part or the transmission structure;
when the fork arm is inserted into the insertion pipe of the tray and the tray is upwards supported, the upper wall surface of the insertion pipe presses the trigger part to enable the trigger part to move downwards, and the trigger part drives the limiting part to move upwards through the transmission structure in the moving downwards process and enables the upper end of the limiting part to protrude out of the avoiding hole in the tray.
The invention has the beneficial effects that: when the pallet fork is used, the trigger piece can move downwards under the pressing action of the upper pipe wall of the insertion pipe when the pallet fork moves upwards and picks up the pallet, and then the limiting piece is driven to move upwards through the transmission structure connected between the trigger piece and the limiting piece and enters the avoidance hole in the pallet, so that the pallet is limited, and the pallet is prevented from moving on the pallet fork when in use; and when the fork is moved down after the use is finished, the limiting part can be automatically moved down to be separated from the avoiding hole on the insertion pipe under the action of the weight of the limiting part or the reset spring, so that the limiting is released, and the use is convenient.
Further, the transmission structure is a lever structure. The lever structure is adopted, the structure is simple, the cost is low, and the transmission is reliable.
Furthermore, a limiting structure for limiting the rotation angle of the lever structure is arranged in the mounting cavity, so that one end, close to the limiting part, of the lever structure is not lower than the lower surface of the fork arm. The arrangement can prevent interference between one end of the lever structure close to the limiting arm and the insertion pipe when the fork is inserted into or moved out of the insertion pipe.
Furthermore, one end of the lever structure, which is close to the limiting part, drives the limiting part to move up and down, one end of the lever structure, which is far away from the limiting part, is provided with a trigger, and the trigger and the end of the lever structure are integrally formed. The arrangement is equivalent to that one end of the lever structure, which is far away from the limiting part, directly forms the trigger part, and the structure is simple.
Furthermore, a reset spring is installed in the installation cavity, the reset spring acts on the lever structure, and the elastic force of the reset spring on the lever structure enables the lever structure to tilt at one end far away from the limiting part. The limit part and the return spring can be used for combined action, and the limit can be reliably released.
Further, the return spring is a torsion spring. And the structure is simple by adopting the torsion spring.
Furthermore, the lever structure and the limiting part are separated from each other, and the mounting cavity is provided with a cavity wall for guiding the limiting part to move in the up-down direction. By the arrangement, a connecting structure is not needed to be arranged between the lever structure and the limiting part, the structure is simple, and the assembly is convenient and the assembly cost is low.
Furthermore, the upper port of the cavity wall for guiding the limiting part to move along the up-down direction forms a closing structure to prevent the limiting part from being separated from the installation cavity. The limiting block is arranged in the avoiding hole, so that the limiting block can be prevented from being separated from the avoiding hole when in use, the limiting reliability is guaranteed, and meanwhile the limiting block can be prevented from being lost.
Drawings
FIG. 1 is a schematic structural view of a first state of an embodiment 1 of a fork-mounted position limiting assembly according to the present invention;
FIG. 2 is a schematic structural view of a second state of an embodiment 1 of the fork-mounted position limiting assembly of the present invention;
in the figure: 1-pallet fork, 2-pallet, 3-fork arm, 4-mounting cavity, 5-lever structure, 6-first lever arm, 7-second lever arm, 8-limiting piece, 9-lever rotating shaft, 10-avoiding hole, 11-inserting pipe, 41-lever structure mounting cavity and 42-limiting piece mounting cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
the fork-mounted limiting assembly comprises a fork 1 and a tray 2, as shown in fig. 1 and 2, the fork 1 is provided with a fork arm 3, the tray 2 is provided with an insertion tube 11 for inserting the fork arm 3, and the insertion tube 11 is provided with an avoiding hole 10.
The fork arm 3 is provided with an installation cavity 4 which is through from top to bottom, a lever structure and a limiting part 8 are installed in the installation cavity 4, the lever structure comprises a lever rotating shaft 9, a first lever arm 6 which is far away from the limiting part 8 and a second lever arm 7 which is close to the limiting part 8, the lever structure and the limiting part 8 are arranged in a separated mode, and the part, located on the lower side of the limiting part 8, of the second lever arm 7 is in contact force transmission with the limiting part 8.
The lever structure is provided with a reset spring, specifically adopts a torsion spring, the torsion spring enables the first lever arm 6 to tilt and upwards protrude the installation cavity 4 and be in the high position of the limiting part 8 to the elasticity of the lever structure, the end part of the first lever arm 6 protrudes the installation cavity 4 to form a trigger part, the trigger part can be in top pressure fit with the upper wall surface of the insertion pipe 11 when in use, and the lever structure itself forms a transmission structure between the limiting part 8 and the trigger part. And a limiting mechanism is also arranged in the mounting cavity 4 and comprises a limiting rod on the lever structure and a limiting block on the wall of the mounting cavity 4, the torsion spring enables the first lever arm 6 to tilt and simultaneously enables the second lever arm 8 to rotate downwards, and the limiting rod and the limiting block are matched to prevent the second lever arm 7 from protruding downwards out of the lower surface of the fork arm 3.
The installation cavity 4 in this embodiment includes a lever structure installation cavity 41 and a limiting member installation cavity 42, the lever structure is installed in the lever structure installation cavity 41, the limiting member 8 is installed in the limiting member installation cavity 42 in a sliding manner along the up-down direction, and the second lever arm 7 of the lever structure extends into the limiting member installation cavity 42 and is located at the lower side of the limiting member 8 and contacts with the limiting member 8. The wall of the stopper mounting cavity 42 guides the stopper 8 to move only in the vertical direction but not in the horizontal direction. The upper end of the cavity wall of the limiting member installation cavity 42 is of a closing structure, so that the limiting member 8 can only partially extend out of the installation cavity and enter the avoiding hole 10 in the insertion tube 11 of the tray 2.
When the fork-mounted limiting assembly is used, the fork arms 2 of the pallet fork 1 are inserted into the insertion tubes 11 of the pallet 2, and the insertion process is as shown in fig. 1. When the tray 2 is picked up by the upper fork after insertion, as shown in fig. 2, the end of the first lever arm 6 is higher than the limiting member 8, the end of the first lever arm 6 can be pressed and moved down by the upper wall surface of the insertion tube 11, and at this time, the limiting member 8 can move up and protrude upwards out of the avoiding hole 10 under the action of the lever structure, so that the horizontal movement of the tray 2 is limited. Move down fork 1 after the use, make lever structure's second lever arm 7 move down with the help of reset spring's effect, then locating part 8 relies on self gravity gliding, breaks away from and dodges the hole, convenient to use.
According to the design key points, the trigger and the limiting part are arranged in the installation cavity of the fork arm of the fork, the trigger and the limiting part can be linked up and down alternately under the action of the transmission structure, so that the limiting of the pallet is realized when the fork moves up and picks up the pallet, and the limiting is automatically released when the fork moves down, and the invention also has other implementation modes based on the design key points:
the embodiment 2 of the forking limiting assembly is different from the embodiment 1 in that a gear and rack transmission structure is adopted as a transmission structure, a gear and a triggering member with a rack structure are installed in an installation cavity, a rack is also arranged on one side of a limiting member close to the gear, the rack of the triggering member and the rack of the limiting member are both meshed with the gear, and at the moment, the weight of the limiting member can be set to be larger than that of the triggering member, so that the automatic resetting is facilitated. The transmission stability is high. In other embodiments, the automatic reset can be realized by adopting a reset spring.
Embodiment 4 of the present invention, in which the position limiting member is forked, is different from embodiment 1 in that a return spring is not provided, and the return is realized by the weight of the position limiting member, specifically, the weight of the position limiting member is set to be greater than the weight of the trigger member. The arrangement is simple.
The embodiment 5 of the fork-mounted limiting assembly is different from the embodiment 1 in that the mounting cavity is in a groove shape with a cavity wall at the lower end, and the cavity wall at the lower end is directly used as a limiting structure to limit the rotation angle of the lever structure. The structure is simple, and the protection capability is good. In other embodiments, a bottom wall may be provided for the mounting cavity only at the lower side of the end of the lever structure close to the limiting member.
In other embodiments, the return spring may be a tension spring or a compression spring, and the elastic force of the return spring also acts on the limiting member or the trigger member, for example, if the installation cavity is located at the lower side of the trigger member or the limiting member, a bottom wall is provided, and the compression spring is provided between the trigger member and the bottom wall, or the tension spring is connected between the limiting member and the bottom wall.
The specific embodiment of the pallet fork of the invention is as follows: the specific structure of the fork is the same as that of the fork in the fork-mounted limiting assembly embodiment, and the detailed description is omitted.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (9)
1. A pallet fork, comprising:
the fork arm is provided with an installation cavity, a limiting part and a triggering part are installed in the installation cavity, and a transmission structure is arranged between the limiting part and the triggering part;
the weight of the limiting part is greater than that of the trigger part, so that the limiting part can enable the trigger part to protrude upwards from the installation cavity through the transmission structure by means of the self weight and be located at the high position of the limiting part;
or a reset spring is arranged in the mounting cavity, and the trigger part protrudes out of the mounting cavity upwards and is positioned at the high position of the limiting part under the elastic action of the reset spring on the trigger part, the limiting part or the transmission structure;
when the fork arm is inserted into the insertion pipe of the tray and the tray is upwards supported, the upper wall surface of the insertion pipe presses the trigger part to enable the trigger part to move downwards, and the trigger part drives the limiting part to move upwards through the transmission structure in the moving downwards process and enables the upper end of the limiting part to protrude out of the avoiding hole in the tray.
2. The fork of claim 1 wherein the transmission structure is a lever structure.
3. The fork of claim 2 wherein the mounting cavity has a stop structure for limiting the degree of rotation of the lever structure such that the end of the lever structure adjacent the stop is no lower than the lower surface of the yoke arm.
4. The fork of claim 2 wherein an end of the lever structure adjacent the stop member moves the stop member up and down, and an end of the lever structure remote from the stop member is provided with the trigger member, the trigger member being integrally formed with the end of the lever structure.
5. The fork as claimed in claim 2, 3 or 4, wherein a return spring is mounted in the mounting cavity, the return spring acts on the lever structure, and the elastic force of the return spring on the lever structure causes the tilting of the end of the lever structure away from the limiting member.
6. The fork of claim 5 wherein said return spring is a torsion spring.
7. The fork of claim 2 wherein the lever structure and the stop member are separate from one another and the mounting cavity has a cavity wall that guides the stop member in an up-and-down direction.
8. The fork of claim 7 wherein the upper port of the chamber wall that guides the retainer in a vertical direction forms a converging structure to prevent the retainer from falling out of the mounting chamber.
9. The fork-mounted limiting assembly comprises a fork and a tray, wherein the tray is provided with an insertion pipe for inserting a fork arm of the fork, and the fork-mounted limiting assembly is characterized in that an upper pipe arm of the insertion pipe is provided with an avoiding hole, and the fork is as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911137558.3A CN110885038A (en) | 2019-11-19 | 2019-11-19 | Fork and fork dress spacing subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911137558.3A CN110885038A (en) | 2019-11-19 | 2019-11-19 | Fork and fork dress spacing subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110885038A true CN110885038A (en) | 2020-03-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911137558.3A Pending CN110885038A (en) | 2019-11-19 | 2019-11-19 | Fork and fork dress spacing subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110885038A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265728A (en) * | 2020-11-26 | 2021-01-26 | 瑞昌市渝瑞实业有限公司 | Disconnected equipment for packing is prevented to chinese yam |
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| GB1022637A (en) * | 1962-09-14 | 1966-03-16 | Craig Alford Ltd | Fork lift |
| CN201132310Y (en) * | 2007-09-30 | 2008-10-15 | 江苏通润工具箱柜股份有限公司 | Drawer-locking device for lever type tool case |
| CN204873750U (en) * | 2015-06-06 | 2015-12-16 | 浙江商业职业技术学院 | Harbour containerized traffic fork truck |
| CN205802171U (en) * | 2016-07-06 | 2016-12-14 | 贵阳普天物流技术有限公司 | A kind of shelf with automatic separation goods function |
| CN106629501A (en) * | 2017-02-17 | 2017-05-10 | 平罗县龙江液化气有限责任公司 | Unloading assisting device of liquefied natural gas |
| CN107364812A (en) * | 2017-08-31 | 2017-11-21 | 覃晓捷 | A kind of anti-skidding fork truck |
| CN207903265U (en) * | 2018-01-16 | 2018-09-25 | 浙江国自机器人技术有限公司 | A kind of device for preventing pallet from falling |
| CN109678085A (en) * | 2019-02-26 | 2019-04-26 | 安徽安鑫货叉有限公司 | A kind of pallet fork with position-limit mechanism |
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2019
- 2019-11-19 CN CN201911137558.3A patent/CN110885038A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1022637A (en) * | 1962-09-14 | 1966-03-16 | Craig Alford Ltd | Fork lift |
| CN201132310Y (en) * | 2007-09-30 | 2008-10-15 | 江苏通润工具箱柜股份有限公司 | Drawer-locking device for lever type tool case |
| CN204873750U (en) * | 2015-06-06 | 2015-12-16 | 浙江商业职业技术学院 | Harbour containerized traffic fork truck |
| CN205802171U (en) * | 2016-07-06 | 2016-12-14 | 贵阳普天物流技术有限公司 | A kind of shelf with automatic separation goods function |
| CN106629501A (en) * | 2017-02-17 | 2017-05-10 | 平罗县龙江液化气有限责任公司 | Unloading assisting device of liquefied natural gas |
| CN107364812A (en) * | 2017-08-31 | 2017-11-21 | 覃晓捷 | A kind of anti-skidding fork truck |
| CN207903265U (en) * | 2018-01-16 | 2018-09-25 | 浙江国自机器人技术有限公司 | A kind of device for preventing pallet from falling |
| CN109678085A (en) * | 2019-02-26 | 2019-04-26 | 安徽安鑫货叉有限公司 | A kind of pallet fork with position-limit mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265728A (en) * | 2020-11-26 | 2021-01-26 | 瑞昌市渝瑞实业有限公司 | Disconnected equipment for packing is prevented to chinese yam |
| CN112265728B (en) * | 2020-11-26 | 2022-04-26 | 瑞昌市渝瑞实业有限公司 | Disconnected equipment for packing is prevented to chinese yam |
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Application publication date: 20200317 |
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