Anti-collision weighing fork
By installing anti-collision devices and gravity sensors on forklift forks, the problems of bending deformation and inaccurate weighing during collisions have been solved, achieving high-precision weighing and equipment durability.
Patent Information
- Application Number
- CN202520240696.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing forklift forks are prone to bending and deformation upon impact, leading to weighing errors. Furthermore, the weighing cover plate is prone to tilting under uneven force, affecting weighing accuracy.
A collision avoidance device is installed under the weighing fork. The fork and the collision avoidance device are designed to be larger than the cross-section of the fork and extend beyond the edge to prevent collision. A balancer and a gravity sensor are installed on the fork. The four sensors are symmetrically arranged on the edge of the cover plate and fixed by a limiting plate to prevent the cover plate from tilting.
It effectively prevents the weighing fork from bending and deforming due to collision, improves weighing accuracy, reduces errors, and extends service life.
Smart Images

Figure CN223705119U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forklift attachment technology, and in particular to an anti-collision weighing fork. Background Technology
[0002] Forks are the most commonly used lifting device on a forklift. A forklift is equipped with two forks, shaped like the letter L. The horizontal section of the fork is the working part for lifting and placing goods, while the vertical section is the support part.
[0003] Forklifts play an indispensable role in today's logistics and manufacturing industries. Some specific goods need to be weighed before being handled. However, the forks of existing forklifts often only have basic handling functions. Goods with special specifications, those that cannot be weighed on a weighbridge, those that operate under complex and harsh conditions, those that require frequent weighing, and those that have overload alarms have additional requirements for weighing. This not only reduces the production efficiency of enterprises, but also increases production costs and labor intensity.
[0004] Patent application number 2022222950694 discloses a weighing fork, including two forks, an inner end weight sensor, an outer end weight sensor, and a weighing cover plate. The fork includes a working section and a support section. The upper end of the working section has a first slot and a second slot. The inner end weight sensor and the outer end weight sensor are respectively fixed in the first slot and the second slot. The weighing cover plate includes a weighing section and a protection section. A pressure plate is provided directly above the inner end weight sensor and the outer end weight sensor. The lower end of the pressure plate has a contact panel that abuts against the inner end weight sensor and the outer end weight sensor respectively. The side plate has a socket, into which a wireless transmission module and a power supply are respectively inserted.
[0005] The aforementioned patent indicates that after a collision, the weighing cover plate may bend or shift, causing the center of the pressure plate to not fall on the center of the inner and outer weight sensors, ultimately leading to weighing errors. Furthermore, although the patent designs inner and outer weight sensors, both are designed on a straight line. When the weighing cover plate is subjected to uneven gravity, it may tilt to the left or right, which will also affect the weighing error. Utility Model Content
[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an anti-collision weighing fork. This anti-collision weighing fork not only effectively prevents collisions, but also prevents the weighing cover from tilting to the left or right, thus greatly improving the weighing accuracy.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A collision-resistant weighing fork includes: a mounting plate connected to a forklift; a pair of weighing fork rods mounted on the mounting plate; and a collision protector installed under the weighing fork rods; the cross-section of the collision protector is larger than the cross-section of the fork rods, and extends beyond the edges of the fork rods on all sides.
[0009] Preferably, the weighing fork includes a pair of balancers mounted on the anti-collision device; each balancer is equipped with a pair of gravity sensors; a cover plate is mounted on each of the four gravity sensors; a limiting plate is mounted on each side of the cover plate; the four gravity sensors are arranged symmetrically up, down, left, and right under the cover plate and are located at the edge of the cover plate; the cover plate is fitted between the two balancers by the two limiting plates.
[0010] Compared with the prior art, this application has the following beneficial effects:
[0011] This invention features an anti-collision device installed under the weighing fork. Upon collision, the anti-collision device collides with the object, preventing the weighing fork from bending or deforming, thus effectively preventing weighing errors. Simultaneously, the weighing fork is equipped with a pair of balancers, on which four gravity sensors are installed. These four gravity sensors effectively prevent the cover plate from tilting left or right when subjected to uneven gravity, further improving weighing accuracy. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.
[0013] Figure 1 This is a schematic diagram of the structure of the anti-collision weighing fork described in this utility model;
[0014] Figure 2 for Figure 1 A schematic diagram of a localized explosion structure. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0016] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0017] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or its equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0018] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.
[0019] Example 1:
[0020] like Figure 1 As shown, a collision-resistant weighing fork includes: a mounting plate 10 connected to a forklift, a symmetrical weighing fork 20 disposed on the mounting plate 10, and a collision protector 30 installed under the weighing fork 20; the cross-section of the collision protector 30 is larger than the cross-section of the fork 20, and extends beyond the edges of the fork 20 on all sides.
[0021] The mounting plate 10 and a symmetrical weight-bearing fork 20 form a weighing fork. The weighing fork is mounted on the forklift via the mounting plate 10. When goods are lifted by the symmetrical weight-bearing fork 20 mounted on the mounting plate 10, the symmetrical weight-bearing fork 20 weighs the goods, and the weighing data is transmitted to the receiving device for display and recording.
[0022] Furthermore, to prevent the weighing fork 20 from bending or deforming due to collisions during transportation, a bumper 30 is installed under the weighing fork 20. The cross-section of the bumper 30 is larger than that of the fork 20, and its edges extend beyond the edges of the fork 20. With this design, if the fork collides with an object, the object will first collide with the bumper 30, effectively preventing the weighing fork 20 from colliding with the object, thus preventing bending or deformation of the weighing fork 20 and preventing errors during weighing.
[0023] like Figure 2 As shown, the weighing fork 20 includes a pair of balancers 21 mounted on the anti-collision device 30; each balancer 21 is equipped with a pair of gravity sensors 22; a cover plate 23 is mounted on the four gravity sensors 22; a limiting plate 24 is mounted on each side of the cover plate 23; the four gravity sensors 22 are arranged symmetrically up, down, left, and right under the cover plate 23 and are located at the edge of the cover plate 23; the cover plate 23 is fitted between the two balancers 21 by the two limiting plates 24.
[0024] The goods are placed on the cover plate 23, and the gravity is transmitted through the cover plate 23 to four gravity sensors 22 located under the cover plate 23. Then, the weight of the goods is transmitted to the receiving device through the gravity sensors 22.
[0025] Furthermore, the four gravity sensors 22 are arranged symmetrically up, down, left, and right under the cover plate 23 and are located at the edge of the cover plate 23. This design can effectively prevent the cover plate 23 from tilting when the goods are subjected to uneven force. This design can effectively improve the weighing accuracy.
[0026] Furthermore, although the anti-collision device 30 is used to prevent objects from directly impacting the weighing fork 20 during a collision, the vibration waves generated during the collision will still have a certain impact on the cover plate 23. In order to prevent the cover plate 23 from shifting due to the vibration waves after the collision, a limiting plate 24 is set on each side of the cover plate 23. The two limiting plates 24 are fitted between the two balancers 21 and are in close contact. This design not only effectively prevents the cover plate 23 from shifting during a collision, but also improves the service life of the anti-collision weighing fork.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A collision-avoiding load cell fork, characterized by, The application relates to a weighing fork connecting plate (10) and a pair of symmetrical weighing forks (20) arranged on the weighing fork connecting plate (10), and a bumper (30) arranged below the weighing forks (20); the bumper (30) has a cross section larger than that of the weighing forks (20) and exceeds the edges of the weighing forks (20) on the periphery. The weighing forks (20) comprise a pair of balancers (21) arranged on the bumper (30); each balancer (21) is provided with a pair of gravity sensors (22); the four gravity sensors (22) are provided with a cover plate (23); each side of the cover plate (23) is provided with a limiting plate (24); the four gravity sensors (22) are symmetrically arranged above and below and left and right of the cover plate (23) and are arranged at the edges of the cover plate (23); and the cover plate (23) is sleeved between the two balancers (21) through the two limiting plates (24).
2. A crashworthy load fork according to claim 1, wherein,