Electric distance adjusting fork

Abstract

The utility model relates to the technical field of forklift accessories, in particular to an electric distance adjusting fork. The electric distance adjusting fork comprises a distance adjusting frame, a connecting assembly, a sleeve fork arm assembly, an electric cylinder and a V-shaped groove, the connecting assembly comprises a guide rod and a self-lubricating bearing, the guide rod is installed on the distance adjusting frame, the self-lubricating bearing is installed on the guide rod in a sliding mode, the sleeve fork arm assembly is installed on the guide rod through the self-lubricating bearing, and the electric cylinder is installed on the V-shaped groove. The electric cylinder comprises a fixed end and a movable end, the fixed end is connected with the distance adjusting frame, the movable end is connected with the sleeve fork arm assembly, and the V-shaped groove is formed in the sleeve fork arm assembly. The electric cylinder is used for replacing a traditional oil cylinder for driving, so that the structure of the distance adjusting fork is simpler, the problem that hydraulic leakage pollutes goods is solved, meanwhile, the structure of the sleeve fork arm assembly is improved, the V-shaped groove is formed in the sleeve fork arm assembly, and cylindrical roll goods can be carried more stably and safely.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift attachments, in particular to an electric adjustable distance fork. Background Art

[0002] With the rapid development of industrialization in my country, forklifts are widely used in logistics or cargo handling to replace manual handling of goods. The shapes of goods are also different. For cylindrical rolled goods, because of the rolling situation on their cylindrical surface, it is particularly necessary to design a clamping arm handling attachment that can limit the circular rolling of cylindrical goods and use it with a forklift.

[0003] The Chinese invention patent with publication number CN108584803A discloses a distance-adjusting fork, where the left and right fork arms are connected at both ends by a screw rod with positive and negative teeth. It is necessary to manually adjust the position of the fork arms to adjust the distance, which is cumbersome. Some distance-adjusting forks use a cylinder to drive the fork to adjust the distance. For example, the Chinese utility model patent with publication number CN207330264U discloses a side-shift distance-adjusting fork, which drives the right and left forks along the string axis through two distance-adjusting cylinders. However, the cylinder drive needs to ensure the sealing of the hydraulic system, otherwise leakage will occur, posing a risk of contaminating the goods. Utility Model Content

[0004] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures specifically pointed out in the description and other drawings of the description.

[0005] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide an electric adjustable fork. The utility model uses an electric cylinder to replace the traditional oil cylinder drive, so that the structure of the adjustable fork is more streamlined, avoiding the problem of hydraulic leakage contaminating the goods. At the same time, the structure of the sleeve fork arm assembly is improved, and an anti-collision strip is provided at the front end of the sleeve fork arm assembly. A detector is provided in the anti-collision strip to detect the collision of the sleeve fork arm assembly. A V-shaped groove is provided on the sleeve fork arm assembly, so that it is more stable and safe to carry cylindrical rolled goods. A sensor is provided on the sleeve fork arm assembly to detect whether the goods are clamped in place, which is particularly suitable for scenes used in conjunction with AGV forklifts.

[0006] The utility model provides an electric distance-adjusting fork, including a distance-adjusting frame, a connecting assembly, a sleeve fork arm assembly, an electric cylinder, and a V-shaped groove. The connecting assembly includes a guide rod and a self-lubricating bearing. The guide rod is installed on the distance-adjusting frame. The self-lubricating bearing is slidably installed on the guide rod. The sleeve fork arm assembly is installed on the guide rod through the self-lubricating bearing. The electric cylinder includes a fixed end and a movable end. The fixed end is connected to the distance-adjusting frame, and the movable end is connected to the sleeve fork arm assembly. The V-shaped groove is arranged on the sleeve fork arm assembly. The utility model uses an electric cylinder to replace the traditional oil cylinder drive, so that the structure of the distance-adjusting fork is more streamlined, avoiding the problem of hydraulic leakage contaminating goods. At the same time, the structure of the sleeve fork arm assembly is improved. A V-shaped groove is arranged on the sleeve fork arm assembly, so that goods of different sizes can be transported, and it also makes the transportation of cylindrical rolled goods more stable and safe.

[0007] In some embodiments, the sleeve fork arm assembly includes a left string rod, a right string rod, a left sleeve fork arm, and a right sleeve fork arm. The left sleeve fork arm is connected to the self-lubricating bearing through the left string rod, and the right sleeve fork arm is connected to the self-lubricating bearing through the right string rod. The movable end of the electric cylinder is connected to the sleeve fork arm assembly, and the telescopic movement of the electric cylinder piston drives the left and right string rods to adjust the distance, thereby driving the left and right sleeve fork arms to adjust the distance.

[0008] In some embodiments, a wear-resistant block is provided in the V-shaped groove. Preferably, the wear-resistant block is made of wear-resistant plastic and is used to protect the V-shaped groove and the goods from being strangled.

[0009] In some embodiments, the left sleeve fork arm and the right sleeve fork arm are both provided with sensors, and the sensors are installed on the V-shaped groove through the sensor mounting plate. The sensors are used to detect whether the goods are clamped in place. When the goods are clamped in place, the trigger sensor is triggered, and the signal is fed back to the control system, and the electric cylinder stops moving to adjust the distance.

[0010] In some embodiments, the front ends of the left sleeve fork arm and the right sleeve fork arm are provided with anti-collision strips, and detectors are provided in the anti-collision strips. The anti-collision strips can prevent the left sleeve fork arm and the right sleeve fork arm from being damaged, and the detectors can provide early warning to detect collisions between the left sleeve fork arm and the right sleeve fork arm and obstacles.

[0011] In some embodiments, the guide rod is mounted on the distance adjustment frame via a guide rail guard plate. The guide rail guard plate and the guide rod are mounted on the distance adjustment frame via screws to limit the axial movement of the guide rod.

[0012] In some embodiments, a distance adjusting fork pressure plate is disposed at the outer end of the self-lubricating bearing. The setting of the distance adjusting fork pressure plate can limit the axial movement of the self-lubricating bearing.

[0013] In some embodiments, a chain support mounting plate is provided on the sleeve fork arm assembly, and a chain support is mounted on the chain support mounting plate. The chain support is used to protect the control line of the electric cylinder from being worn out when the distance is adjusted left and right.

[0014] In some embodiments, the distance adjusting frame is provided with a lower hook, which is mounted on the back of the distance adjusting frame. The lower hook is used to hang the distance adjusting fork on the fork frame of the forklift mast.

[0015] By adopting the above technical solution, the beneficial effects of the utility model are:

[0016] 1. The electric cylinder is used instead of the traditional oil cylinder drive, making the structure of the adjustable fork more streamlined and avoiding the contamination of goods by hydraulic leakage.

[0017] 2. The structure of the sleeve fork arm assembly is improved. An anti-collision strip is provided at the front end of the sleeve fork arm assembly. A detector is provided in the anti-collision strip to detect the collision of the sleeve fork arm assembly. A V-shaped groove is provided on the sleeve fork arm assembly to make it more stable and safe when carrying cylindrical rolled goods. A sensor is provided on the sleeve fork arm assembly to detect whether the goods are clamped in place, which is particularly suitable for use with AGV forklifts.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0019] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments described with reference to various figures and drawings.

[0020] In order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, one or several preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0022] In the drawings, the same reference numerals are used for the same components and the drawings are schematic and not necessarily drawn to scale.

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or several embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of an electric distance-adjusting fork in some embodiments of the utility model;

[0025] Figure 2 It is a schematic diagram of the rear side structure of an electric fork distance adjustment device in some embodiments of the utility model;

[0026] Figure 3 It is a front view of an electric fork distance adjustment device in some embodiments of the utility model;

[0027] Description of main reference numerals:

[0028] 1. Adjustable distance frame;

[0029] 11. Guide rail guard plate; 12. Lower hook;

[0030] 2. Connect components;

[0031] 21. Guide rod; 22. Self-lubricating bearing; 211. Adjustable fork pressure plate;

[0032] 3. Sleeve fork arm assembly;

[0033] 31. Left string rod; 32. Right string rod; 33. Left sleeve fork arm; 34. Right sleeve fork arm; 35. Sensor; 36. Sensor mounting plate; 37. Support chain mounting plate; 38. Support chain; 39. Anti-collision strip;

[0034] 4. Electric cylinder;

[0035] 5. V-groove;

[0036] 51. Wear-resistant blocks. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model, but not to limit the utility model.

[0038] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are connected to form a whole through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0041] Reference Figure 1-Figure 3 , Figure 1 It is a structural schematic diagram of an electric distance-adjusting fork in some embodiments of the utility model; Figure 2 It is a schematic diagram of the rear side structure of an electric fork distance adjustment device in some embodiments of the utility model; Figure 3 It is a front view of an electric fork distance adjustment in some embodiments of the utility model.

[0042] According to some embodiments of the utility model, the utility model provides an electric distance-adjusting fork. The electric distance-adjusting fork comprises a distance-adjusting frame 1, a connecting assembly 2, a sleeve fork arm assembly 3, an electric cylinder 4, and a V-shaped groove 5. The connecting assembly 2 comprises a guide rod 21 and a self-lubricating bearing 22, wherein the guide rod 21 is mounted on the distance-adjusting frame 1; the self-lubricating bearing 22 is slidably mounted on the guide rod 21; the sleeve fork arm assembly 3 is mounted on the guide rod 21 through the self-lubricating bearing 22; the electric cylinder 4 comprises a fixed end and a movable end, wherein the fixed end is connected to the distance-adjusting frame 1, and the movable end is connected to the sleeve fork arm assembly 3; and the V-shaped groove 5 is arranged on the sleeve fork arm assembly 3. The utility model replaces the traditional oil cylinder drive with the electric cylinder 4, so that the structure of the distance-adjusting fork is more streamlined, and the problem of hydraulic leakage contaminating the goods is avoided. At the same time, the structure of the sleeve fork arm assembly 3 is improved, and a V-shaped groove 5 is arranged on the sleeve fork arm assembly 3, so that goods of different sizes can be transported, and it also makes the transport of cylindrical rolled goods more stable and safe.

[0043] According to some embodiments of the utility model, optionally, the sleeve fork arm assembly 3 includes a left string rod 31, a right string rod 32, a left sleeve fork arm 33, and a right sleeve fork arm 34. The left sleeve fork arm 33 is connected to the self-lubricating bearing 22 through the left string rod 31, and the right sleeve fork arm 34 is connected to the self-lubricating bearing 22 through the right string rod 32. The movable end of the electric cylinder 4 is connected to the sleeve fork arm assembly 3, and the left and right string rods 32 are driven to adjust the distance through the extension and contraction of the piston of the electric cylinder 4, thereby driving the left and right sleeve fork arms 34 to adjust the distance.

[0044] According to some embodiments of the present invention, optionally, a wear-resistant block 51 is provided in the V-shaped groove 5. Preferably, the wear-resistant block 51 is made of wear-resistant plastic, and is used to protect the V-shaped groove 5 and the goods from being strangled.

[0045] According to some embodiments of the utility model, optionally, a sensor 35 is provided on both the left sleeve fork arm 33 and the right sleeve fork arm 34, and the sensor 35 is installed on the V-shaped groove 5 through a sensor mounting plate 36. The sensor 35 is used to detect whether the goods are clamped in place, and when the goods are clamped in place, the sensitive element of the sensor 35 is triggered, and the signal is fed back to the control system, and the electric cylinder 4 stops moving to adjust the distance.

[0046] According to some embodiments of the utility model, optionally, an anti-collision strip 39 is provided at the front end of the left sleeve fork arm 33 and the right sleeve fork arm 34, and a detector is provided in the anti-collision strip 39. The anti-collision strip 39 can prevent the left sleeve fork arm 33 and the right sleeve fork arm 34 from being damaged, and the detector can provide an early warning to detect the collision between the left sleeve fork arm 33 and the right sleeve fork arm 34 and obstacles.

[0047] According to some embodiments of the present invention, optionally, the guide rod 21 is mounted on the distance adjustment frame 1 through the guide rail guard plate 11. The guide rail guard plate 11 and the guide rod 21 are mounted on the distance adjustment frame 1 through screws to limit the axial movement of the guide rod 21.

[0048] According to some embodiments of the present invention, optionally, a distance adjusting fork pressing plate 211 is provided at the outer end of the self-lubricating bearing 22. The setting of the distance adjusting fork pressing plate 211 can limit the axial stringing of the self-lubricating bearing 22.

[0049] According to some embodiments of the utility model, optionally, a chain support mounting plate 37 is provided on the sleeve fork arm assembly 3, and a chain support 38 is installed on the chain support mounting plate 37. The chain support 38 is used to protect the control line of the electric cylinder 4 from being worn when the distance is adjusted left and right.

[0050] According to some embodiments of the utility model, optionally, a lower hook 12 is provided on the distance adjusting frame 1, and the lower hook 12 is installed on the back of the distance adjusting frame 1. The lower hook 12 is used to hang the distance adjusting fork on the fork frame of the forklift mast.

[0051] Example

[0052] Reference Figure 1-Figure 3 The present embodiment provides an electric forklift. The electric forklift comprises: a forklift frame 1, a connection assembly 2, a sleeve fork arm assembly 3, an electric cylinder 4, and a V-shaped groove 5. The forklift frame 1 is provided with a lower hook 12, which is installed on the back of the forklift frame 1 and is used to hang the forklift on the fork frame of the forklift mast.

[0053] The connecting assembly 2 includes a guide rod 21 and a self-lubricating bearing 22. The guide rod 21 is installed on the distance adjustment frame 1 through a guide rail guard plate 11, and the guide rail guard plate 11 is installed on the distance adjustment frame 1 through screws to limit the axial movement of the guide rod 21. The self-lubricating bearing 22 is slidably installed on the guide rod 21. At the same time, a distance adjustment fork pressure plate 211 is provided at the outer end of the self-lubricating bearing 22 to limit the axial stringing of the bearing.

[0054] The sleeve fork arm assembly 3 includes a left string rod 31, a right string rod 32, a left sleeve fork arm 33, and a right sleeve fork arm 34, which are installed on the guide rod 21 through a self-lubricating bearing 22. Specifically, the left sleeve fork arm 33 is connected to the self-lubricating bearing 22 through the left string rod 31, and the right sleeve fork arm 34 is connected to the self-lubricating bearing 22 through the right string rod 32. Both the left sleeve fork arm 33 and the right sleeve fork arm 34 are provided with a V-groove 5, and a wear-resistant block 51 is installed on the V-groove 5. Preferably, the wear-resistant block 51 is wear-resistant plastic, which is used to protect the V-groove 5 body and protect the goods from being strangled. A sensor mounting plate 36 is installed on the side of the V-groove 5, and a sensor 35 is installed on the sensor mounting plate 36 to detect whether the goods are clamped in place. When the goods are clamped in place, the sensor 35 is triggered, and the signal of the sensor 35 is fed back to the control system, and the electric cylinder 4 stops moving to adjust the distance. The front ends of the left sleeve fork arm 33 and the right sleeve fork arm 34 are also provided with anti-collision strips 39. Preferably, the anti-collision strips 39 are rubber anti-collision strips 39. A detector is provided inside the anti-collision strips 39 to provide early warning to prevent the sleeve fork arm assembly 3 from colliding with obstacles.

[0055] The electric cylinder 4 includes a fixed end and a movable end. The fixed end is connected to the distance adjustment frame 1, and the movable end is connected to the left and right sleeve fork arms 34 through left and right string rods 32. The distance is adjusted by the extension and retraction of the piston of the electric cylinder 4 to drive the left and right string rods 32.

[0056] In addition, a support chain mounting plate 37 is provided on the sleeve fork arm assembly 3, and a support chain 38 is installed on the support chain mounting plate 37 to protect the control line of the electric cylinder 4 from being worn out when the distance is adjusted to the left and right.

[0057] When in use, the distance-adjusting fork is hung on the fork frame of the forklift mast through the lower hook 12, and then the electric cylinder 4 is started. Under the action of the self-lubricating bearing 22, the left and right string rods 32 are driven to adjust the distance through the extension and contraction of the piston of the electric cylinder 4, and then the left and right sleeve fork arms 34 are driven to adjust the distance. Because a sensor 35 is installed in the V-groove 5, when the cargo is clamped in place, the sensitive element of the sensor 35 is triggered, and the signal is fed back to the control system, and the electric cylinder 4 stops moving to adjust the distance.

[0058] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0059] The "embodiment" mentioned in the specification means that the specific features or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present utility model. Therefore, phrases or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0060] In addition, the described features or characteristics may be combined in one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the utility model. However, those skilled in the relevant art will understand that the utility model can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. An electric fork lift, characterized in that: include: Adjustable distance frame; A connecting assembly, comprising a guide rod and a self-lubricating bearing, wherein the guide rod is mounted on the distance-adjusting frame, and the self-lubricating bearing is slidably mounted on the guide rod; a sleeve fork arm assembly, which is mounted on the guide rod through the self-lubricating bearing; An electric cylinder, comprising a fixed end and a movable end, wherein the fixed end is connected to the distance adjustment frame, and the movable end is connected to the sleeve fork arm assembly; A V-shaped groove is provided on the sleeve yoke assembly.

2. The electric fork lift according to claim 1, characterized in that: The sleeve fork arm assembly includes a left string rod, a right string rod, a left sleeve fork arm, and a right sleeve fork arm. The left sleeve fork arm is connected to the self-lubricating bearing through the left string rod, and the right sleeve fork arm is connected to the self-lubricating bearing through the right string rod.

3. The electric fork lift according to claim 1, characterized in that: A wear-resistant block is arranged in the V-shaped groove.

4. The electric fork lift according to claim 2, characterized in that: Sensors are provided on both the left sleeve fork arm and the right sleeve fork arm, and the sensors are installed on the V-shaped groove through a sensor mounting plate.

5. The electric fork lift according to claim 2, characterized in that: Anti-collision strips are arranged at the front ends of the left sleeve fork arm and the right sleeve fork arm, and detectors are arranged inside the anti-collision strips.

6. The electric fork lifter according to claim 1, characterized in that: The guide rod is installed on the distance adjustment frame through a guide rail guard plate.

7. The electric fork lift according to claim 1, characterized in that: The outer end of the self-lubricating bearing is provided with a distance adjusting fork pressure plate.

8. The electric fork lift according to claim 1, characterized in that: A support chain mounting plate is provided on the sleeve fork arm assembly, and a support chain is mounted on the support chain mounting plate.

9. The electric fork lift according to claim 1, characterized in that: The distance adjusting frame is provided with a lower hook, and the lower hook is installed on the back side of the distance adjusting frame.

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