Pallet fork with adjustable spacing
By using synchronous belt drive and combined with telescopic motor in the forks, the problem of requiring three control systems in existing forks is solved, realizing low-cost and efficient synchronous fork spacing adjustment and control.
Patent Information
- Application Number
- CN202520161243.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-23
AI Technical Summary
The existing forklifts require three control systems to drive three motors, resulting in high costs and numerous potential points of failure.
The first motor drives the synchronous belt to move the second telescopic fork laterally. By combining the telescopic motors of the three telescopic forks, only two control systems are needed to achieve synchronous extension and retraction and spacing adjustment of the three telescopic forks.
It achieves a simple structure, is easy to use, reduces costs and potential failure points, and can simultaneously control the spacing of the three telescopic forks.
Smart Images

Figure CN223659778U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a fork technology field, concretely relates to a distance adjustable fork. BACKGROUND
[0002] Now variable interval and fixed interval fork, are three motors drive respectively, wherein horizontal shift needs a motor, fixed interval telescopic needs a motor, variable interval telescopic needs a motor, therefore needs three sets of control system, and the cost is higher.
[0003] Based on the above situation, the utility model provides a distance adjustable fork can effectively solve above -mentioned problem. UTILITY MODEL CONTENTS
[0004] The utility model discloses a distance adjustable fork, simple structure, convenient to use, through the telescopic motor of three telescopic forks is combined, and adopts first motor to realize second telescopic fork horizontal movement through drive synchronous belt, realizes three telescopic forks synchronous telescopic, can also change the interval between three telescopic forks, only needs two sets of control system, and the cost is low, and the fault point is few.
[0005] The utility model discloses a distance adjustable fork, simple structure, convenient to use, through the telescopic motor of three telescopic forks is combined, and adopts first motor to realize second telescopic fork horizontal movement through drive synchronous belt, realizes three telescopic forks synchronous telescopic, can also change the interval between three telescopic forks, only needs two sets of control system, and the cost is low, and the fault point is few.
[0006] A distance adjustable fork, including first telescopic fork, second telescopic fork and third telescopic fork, be connected with the spline shaft on the second telescopic fork, be equipped with drive mechanism on the second telescopic fork, the drive mechanism is used for driving spline shaft rotation, first universal shaft is connected with the spline shaft one end, second universal shaft is connected with the spline shaft other end, the first universal shaft is connected with first telescopic fork, the second universal shaft is connected with third telescopic fork, be connected with moving mechanism on the second telescopic fork.
[0007] The utility model discloses a distance adjustable fork, simple structure, convenient to use, through the telescopic motor of three telescopic forks is combined, and adopts first motor to realize second telescopic fork horizontal movement through drive synchronous belt, realizes three telescopic forks synchronous telescopic, can also change the interval between three telescopic forks, only needs two sets of control system, and the cost is low, and the fault point is few.
[0008] Preferably, the moving mechanism comprises a guide rail, a sliding block and a first motor, the spline shaft is provided with mounting plates on both sides, the guide rail is arranged on the mounting plates, the sliding block is slidingly connected to the guide rail, the second telescopic fork is fixedly arranged on the sliding block, the support plate is arranged between the spline shaft and the mounting plate on the front side, the first synchronous wheel is rotatably connected to one end of the support plate, the second synchronous wheel is rotatably connected to the other end of the support plate, the first motor is arranged on the top of the other end of the support plate, the motor shaft of the first motor penetrates through the support plate and is connected with the second synchronous wheel, the first synchronous wheel and the second synchronous wheel are drivingly connected through a synchronous belt, and the synchronous belt is fixedly connected with the second telescopic fork through the connecting plate.
[0009] Preferably, the driving mechanism comprises a second motor, and the second motor is used for driving the spline shaft to rotate.
[0010] Preferably, one end of the spline shaft is connected with the first universal shaft through a first coupling, and the other end of the spline shaft is connected with the second universal shaft through a second coupling.
[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0012] The adjustable spacing fork has simple structure and convenient use, the telescopic motors of the three telescopic forks are combined, the first motor is used for driving the synchronous belt to realize the transverse movement of the second telescopic fork, the three telescopic forks are synchronously telescoped, the spacing between the three telescopic forks can be changed, only two sets of control systems are needed, the cost is low, and the fault points are few. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a first perspective structural schematic view of the utility model;
[0014] Figure 2 It is a first perspective structural schematic view of the utility model; Figure 1 It is a first perspective structural schematic view of the utility model;
[0015] Figure 3 It is a second perspective structural schematic view of the utility model. DETAILED DESCRIPTION
[0016] In order to make the skilled person in the art better understand the technical scheme of the utility model, the preferred implementation scheme of the utility model will be described below in combination with specific implementation examples, but it should be understood that the drawings are only used for exemplary description, and cannot be understood as the limitation of the patent; in order to better illustrate the embodiment, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only used for exemplary description, and cannot be understood as the limitation of the patent.
[0017] Example 1:
[0018] like Figures 1 to 3 As shown, this utility model provides an adjustable spacing fork, including a first telescopic fork 1, a second telescopic fork 2, and a third telescopic fork 3. A spline shaft 4 is connected to the second telescopic fork 2, and a drive mechanism 5 is provided on the second telescopic fork 2. The drive mechanism 5 is used to drive the spline shaft 4 to rotate. One end of the spline shaft 4 is connected to a first universal joint 6, and the other end of the spline shaft 4 is connected to a second universal joint 7. The first universal joint 6 is connected to the first telescopic fork 1, and the second universal joint 7 is connected to the third telescopic fork 3. A moving mechanism is connected to the second telescopic fork 2.
[0019] Example 2:
[0020] like Figures 1 to 3 As shown, this utility model provides an adjustable spacing fork, including a first telescopic fork 1, a second telescopic fork 2, and a third telescopic fork 3. A spline shaft 4 is connected to the second telescopic fork 2, and a drive mechanism 5 is provided on the second telescopic fork 2. The drive mechanism 5 is used to drive the spline shaft 4 to rotate. One end of the spline shaft 4 is connected to a first universal joint 6, and the other end of the spline shaft 4 is connected to a second universal joint 7. The first universal joint 6 is connected to the first telescopic fork 1, and the second universal joint 7 is connected to the third telescopic fork 3. A moving mechanism is connected to the second telescopic fork 2.
[0021] The drive mechanism 5 drives the spline shaft 4 to rotate. The spline shaft 4 controls the extension and retraction of the second telescopic fork 2 via a sprocket and chain. Similarly, the spline shaft 4 drives the first universal joint 6 and the second universal joint 7 to rotate. The first universal joint 6 controls the extension and retraction of the first telescopic fork 1 via a sprocket and chain, and the second universal joint 7 controls the extension and retraction of the second telescopic fork 2 via a sprocket and chain. The moving mechanism can drive the second telescopic fork 2 to move laterally.
[0022] The moving mechanism includes a guide rail 81, a slider 82, and a first motor 83. Mounting plates 84 are provided on both the front and rear sides of the spline shaft 4. The guide rail 81 is mounted on the mounting plates 84, and the slider 82 is slidably connected to the guide rail 81. The second telescopic fork 2 is fixedly mounted on the slider 82. A support plate 85 is provided between the spline shaft 4 and the front mounting plate 84. A first synchronous pulley 86 is rotatably connected to one end of the support plate 85, and a second synchronous pulley 87 is rotatably connected to the other end. The first motor 83 is located at the top of the other end of the support plate 85. The motor shaft of the first motor 83 passes through the support plate 85 and connects to the second synchronous pulley 87. The first synchronous pulley 86 and the second synchronous pulley 87 are connected by a synchronous belt 88, which is fixedly connected to the second telescopic fork 2 via a connecting plate 89.
[0023] The first motor 83 drives the second synchronous wheel 87 to rotate, the second synchronous wheel 87 drives the synchronous belt 88 to rotate, and the synchronous belt 88 can drive the second telescopic fork 2 to slide on the guide rail 81.
[0024] Further, in another embodiment, the driving mechanism 5 comprises a second motor for driving the spline shaft 4 to rotate.
[0025] The second motor drives the spline shaft 4 to rotate through a chain wheel and a chain.
[0026] Further, in another embodiment, one end of the spline shaft 4 is connected with the first universal shaft 6 through a first coupling, and the other end of the spline shaft 4 is connected with the second universal shaft 7 through a second coupling.
[0027] According to the description and drawings of the utility model, those skilled in the art can easily manufacture or use the adjustable pitch fork of the utility model, and the positive effects recorded in the utility model can be achieved.
[0028] Unless otherwise specified and limited, in the utility model, if there are terms such as 'length', 'width', 'upper', 'lower', 'front','rear', 'left', 'right','vertical', 'horizontal', 'top', 'bottom', 'inner', 'outer', 'clockwise', 'counterclockwise', 'axial', 'radial', 'circumferential', etc. The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore the orientation or positional relationship described in the utility model cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the orientation or positional relationship in the utility model are only used for exemplary description, and cannot be understood as limiting the patent, for those skilled in the art, can understand the specific meaning of the above terms according to the specific circumstances in combination with the drawings.
[0029] Unless otherwise specified and limited, in the utility model, if there are terms such as'setting', 'connection' and 'connection', they should be understood broadly, for example, they can be fixedly connected, or they can be detachably connected, or integrally connected, they can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0030] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, any simple modification, equivalent change made according to the technical essence of the utility model to the above embodiment falls within the protection scope of the utility model.
Claims
1. An adjustable spacing fork, characterized in that: The device includes a first telescopic fork, a second telescopic fork, and a third telescopic fork. A splined shaft is connected to the second telescopic fork, and a drive mechanism is provided on the second telescopic fork to drive the splined shaft to rotate. One end of the splined shaft is connected to a first universal joint, and the other end of the splined shaft is connected to a second universal joint. The first universal joint is connected to the first telescopic fork, and the second universal joint is connected to the third telescopic fork. A moving mechanism is connected to the second telescopic fork.
2. The adjustable spacing fork according to claim 1, characterized in that: The moving mechanism includes a guide rail, a slider, and a first motor. Mounting plates are provided on both the front and rear sides of the splined shaft. The guide rail is mounted on the mounting plate, and the slider is slidably connected to the guide rail. The second telescopic fork is fixed on the slider. A support plate is provided between the splined shaft and the front mounting plate. A first synchronous pulley is rotatably connected to one end of the support plate, and a second synchronous pulley is rotatably connected to the other end. A first motor is provided at the top of the other end of the support plate. The motor shaft of the first motor passes through the support plate and is connected to the second synchronous pulley. The first and second synchronous pulleys are connected by a synchronous belt drive. The synchronous belt is fixedly connected to the second telescopic fork through a connecting plate.
3. The adjustable spacing fork according to claim 1, characterized in that: The drive mechanism includes a second motor, which is used to drive the spline shaft to rotate.
4. The adjustable spacing fork according to claim 1, characterized in that: One end of the splined shaft is connected to the first universal joint via a first coupling, and the other end of the splined shaft is connected to the second universal joint via a second coupling.