High-precision weighing sensor
By introducing a buffer protection structure consisting of a strut, a fastening bracket, a movable sliding sleeve, and a spring into the high-precision load cell, the problem of instability of the sensor under vibration or airflow is solved, achieving higher stability and accuracy.
Patent Information
- Application Number
- CN202520220707.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing high-precision load cells are prone to instability under interference from factors such as vibration or airflow, which affects measurement accuracy and sensitivity.
The buffer protection structure consists of a support rod, a fastening bracket, a movable sliding sleeve, a spring, a first screw, an outer convex ring, and a second screw. The spring's rebound force buffers external interference, ensuring the stability of the sensor.
It effectively mitigates the effects of vibration and airflow on the balancing components, improving the stability and measurement accuracy of the sensor.
Smart Images
Figure CN223664095U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to weighing sensor technical field, concretely is a kind of high-precision weighing sensor. BACKGROUND
[0002] In industrial production, high-precision weighing sensor is a kind of equipment that can accurately measure the weight of object and convert it into electrical signal output, mainly used for raw material weighing, quality control etc., while high-precision weighing sensor also has the characteristics of extremely high measurement accuracy, can capture tiny weight changes and accurately convert it into electrical signal;
[0003] Before the use of existing high-precision weighing sensor, it needs to be fixedly installed on the pressure head by the left and right two lead screws, and the lead screw is limited by using nut, but considering that the upper pressing plate is in a semi-free state when in use, if the use environment is disturbed by factors such as vibration or airflow, the sensor may be overturned due to high precision and sensitivity, and it is difficult to recover, which affects the stability of the weighing sensor in use and the subsequent rapid use of the sensor, therefore, a high-precision weighing sensor is proposed for the above problems. SUMMARY
[0004] The utility model aims at providing a kind of high-precision weighing sensor to solve the problem that the use of existing high-precision weighing sensor may be unstable as described in the background.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A kind of high-precision weighing sensor, including sensor body, the bottom of the sensor body is equipped with base, the top of the base is respectively screw-connected with support column in left and right sides position, the front and rear ends of the support column are respectively fixedly connected with strut, the front and rear ends of the strut are respectively slidably connected with movable sleeve, the inside of the movable sleeve is inserted with first screw rod, the outside of the movable sleeve is equipped with spring, the top of the spring is fixedly connected with fastening holder, the top of the fastening holder is fixedly connected with upper pressing plate body, the outside of the middle and lower part of the first screw rod is fixedly connected with outer convex ring, the left and right sides of the middle of the upper pressing plate body are respectively inserted with second screw rod.
[0007] Preferably, the top edge position of the sensor body is provided with fastening hole groove, a plurality of fastening hole grooves are arranged in ring array structure along the center point of sensor body, the rear end of the sensor body is provided with transmission wiring, the top of the base is provided with screw hole matched with fastening hole groove.
[0008] Preferably, the top middle position of the sensor body is screwed with a lower pressing head, the upper side of the lower pressing head is provided with an upper pressing head, and the upper end of the upper pressing head is clamped and connected with the reserved groove at the bottom of the upper pressing plate body.
[0009] Preferably, the lower part of the second screw rod extends to the lower side of the upper pressing plate body and is screwed with the supporting column, and the second screw rod is arranged between the front and rear movable sliding sleeves.
[0010] Preferably, the top end of the spring is embedded in the inner side of the fastening clamping seat, the top end of the spring is fixedly connected with the fastening clamping seat, the inner side of the fastening clamping seat is provided with an inner threaded hole groove which is screwed with the first screw rod, the first screw rod is coaxially arranged between the outer convex ring, the outer convex ring is slidingly connected and arranged in the inner side of the movable sliding sleeve, and the bottom of the spring is abuttingly arranged with the top of the supporting rod.
[0011] Compared with the prior art, the high-precision weighing sensor has the advantages that:
[0012] In the utility model, the supporting column and the second screw rod are tightly connected, the first screw rod and the fastening clamping seat are screwed together, the buffering protection structure composed of the supporting rod, the fastening clamping seat, the movable sliding sleeve, the spring, the first screw rod, the outer convex ring and the second screw rod is installed between the upper pressing plate body and the supporting column, the buffering force generated by the buffering protection structure is utilized to slow down the influence of vibration or airflow on the whole weighing device, the stability of the sensor body in weighing objects is ensured, and the use progress of the sensor body is accelerated. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a whole structure schematic view of the utility model;
[0014] Figure 2 It is an inner structure schematic view of the fastening clamping seat of the utility model;
[0015] Figure 3 It is an inner structure schematic view of the movable sliding sleeve of the utility model.
[0016] In the drawing: 1, sensor body; 2, base; 3, supporting column; 4, upper pressing plate body; 5, supporting rod; 6, fastening clamping seat; 7, movable sliding sleeve; 8, spring; 9, first screw rod; 10, outer convex ring; 11, second screw rod; 12, lower pressing head; 13, upper pressing head; 14, transmission wiring; 15, fastening hole groove. DETAILED DESCRIPTION
[0017] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0018] Please refer to Figures 1-3 , the present application provides a technical solution:
[0019] A high-precision weighing sensor, comprising a sensor body 1, the bottom of the sensor body 1 is provided with a base 2, the top of the base 2 is provided with a support column 3, the front and rear ends of the support column 3 are respectively fixedly connected with a support rod 5, the front and rear ends of the support rod 5 are respectively slidably connected with a movable sleeve 7, the inner side of the movable sleeve 7 is inserted with a first screw rod 9, the outer side of the movable sleeve 7 is provided with a spring 8, the upper side of the spring 8 is fixedly connected with a fastening seat 6, the top end of the fastening seat 6 is fixedly connected with an upper pressing plate body 4, the lower middle part of the first screw rod 9 is fixedly connected with an outer protruding ring 10, and the left and right sides of the upper pressing plate body 4 are respectively inserted with a second screw rod 11.
[0020] As Figure 1 shown, the top edge of the sensor body 1 is provided with a fastening hole groove 15, a plurality of fastening hole grooves 15 are arranged in a ring array structure along the center point of the sensor body 1, the rear end of the sensor body 1 is provided with a transmission wire 14, the top of the base 2 is provided with a threaded hole matched with the fastening hole groove 15, and the fastening hole groove 15 and the threaded hole reserved on the top of the base 2 are matched with each other, which is beneficial to the quick installation of the entire weighing device on the top of the base 2 through a plurality of bolts; the middle position of the top of the sensor body 1 is threadedly connected with a lower pressing head 12, the upper side of the lower pressing head 12 is provided with an upper pressing head 13, the upper end of the upper pressing head 13 is clamped and connected with the recess reserved on the bottom of the upper pressing plate body 4, and the cooperation of the lower pressing head 12 and the upper pressing head 13 is beneficial to the stable horizontal placement of the upper pressing plate body 4.
[0021] As Figure 1 , Figure 2 and Figure 3As shown, the lower part of the second screw 11 is extended below the upper pressing plate body 4 and is screwed together with the support column 3, the second screw 11 is arranged between the front and rear movable sleeves 7, when the second screw 11 is screwed together with the upper pressing plate body 4 and the support column 3, the bottom of the upper pressing plate body 4 is assisted and supported on both sides; the top end of the spring 8 is embedded in the inside of the fastening clamping seat 6, and the top end of the spring 8 is fixedly connected with the fastening clamping seat 6, the inside of the fastening clamping seat 6 is provided with an internal thread hole groove which is screwed together with the first screw 9, the first screw 9 and the outer convex ring 10 are coaxially arranged, the outer convex ring 10 is slidably connected in the inside of the movable sleeve 7, the bottom of the spring 8 and the top of the support rod 5 are abutted and arranged, when the first screw 9 is screwed upward, the outer convex ring 10 will move upward synchronously, and the adjustment of the first screw 9 is sequentially guided and limited.
[0022] Work flow: when the weighing sensor device in the utility model is used, the inside of the sensor body 1 is usually provided with a weighing sensitive part, before the high-precision weighing sensor is used, when it is combined and installed, first align the fastening thread hole on the top of the base 2, place the sensor body 1 on the top of the base 2, and gradually fix the sensor body 1 and the base 2 together by means of a plurality of bolts penetrating through a plurality of fastening hole grooves 15, screw the lower pressing head 12 into the thread groove reserved on the top of the lower pressing head 12, and then put the upper pressing head 13 on the top of the lower pressing head 12, and then install the two support columns 3 on the top of the base 2 on both sides by means of the bottom studs, when the second screw 11 penetrates through the reserved holes on both sides of the top of the upper pressing plate body 4, aligns the top thread hole of the support column 3, connects the second screw 11 and the support column 3 together, the upper part of the upper pressing head 13 is just clamped into the groove at the bottom of the upper pressing plate body 4, and the upper pressing plate body 4 is stably installed on the upper pressing head 13, and then under the connection limitation of the support rod 5, align the inside of the fastening clamping seat 6, and screw the first screw 9 upward, the upper part of the first screw 9 is screwed together with the movable sleeve 7 and the fastening clamping seat 6, when the high-precision weighing sensor is used, when the object is pressed down or placed on the upper pressing plate body 4, under the switching action of the lower pressing head 12 and the upper pressing head 13, the high-precision weighing sensor can quickly detect the weight of the object by means of the weighing sensitive part arranged inside, and in the detection process, since the upper pressing plate body 4 is in a semi-free state when used, when the upper pressing plate body 4 is disturbed by factors such as vibration or airflow and appears to be turned over, under the fastening limitation of the support rod 5, the first screw 9, the support column 3 and the first screw 9, the spring 8 will be compressed by the upper pressing plate body 4 and generate a rebound force, so that the two fastening clamping seats 6 can utilize the rebound potential energy generated by the spring 8 to effectively buffer the external interference of the upper pressing plate body 4 when used, so that the whole weighing device can better realize the flatness, so as to start the next weighing work in the later period.
[0023] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.
Claims
1. A high-precision weighing sensor, comprising a sensor body (1), characterized in that: The sensor body (1) has a base (2) at its bottom. Support columns (3) are threaded to the top left and right sides of the base (2). Support rods (5) are fixedly connected to the front and rear ends of the support columns (3). Movable sleeves (7) are slidably connected to the front and rear ends of the support rods (5). A first screw (9) is inserted into the inner side of the movable sleeve (7). A spring (8) is sleeved on the outside of the movable sleeve (7). A fastening seat (6) is fixedly connected to the top of the spring (8). An upper pressure plate body (4) is fixedly connected to the top of the fastening seat (6). An outer protruding ring (10) is fixedly connected to the lower middle part of the first screw (9). A second screw (11) is inserted into the middle of the left and right sides of the upper pressure plate body (4).
2. The high-precision weighing sensor according to claim 1, characterized in that: The sensor body (1) has a fastening slot (15) at the top edge. Several fastening slots (15) are arranged in a ring array along the center point of the sensor body (1). The sensor body (1) has a transmission cable (14) at the rear end. The base (2) has a threaded hole at the top that aligns with the fastening slot (15).
3. The high-precision weighing sensor according to claim 1, characterized in that: The sensor body (1) has a lower pressure head (12) threadedly connected to the top middle position. An upper pressure head (13) is provided above the lower pressure head (12). The upper end of the upper pressure head (13) is engaged with the groove reserved at the bottom of the upper pressure plate body (4).
4. A high-precision weighing sensor according to claim 1, characterized in that: The lower part of the second screw (11) extends to the lower part of the upper pressure plate body (4) and is threaded together with the support column (3). The second screw (11) is located between the front and rear movable sleeves (7).
5. A high-precision weighing sensor according to claim 1, characterized in that: The top of the spring (8) is embedded inside the fastening seat (6), and the top of the spring (8) and the fastening seat (6) are fixedly connected. The fastening seat (6) has an internal threaded slot at the center of its inner side that is threaded together with the first screw (9). The first screw (9) and the outer convex ring (10) are coaxially arranged. The outer convex ring (10) is slidably connected inside the movable sleeve (7). The bottom of the spring (8) and the top of the support rod (5) are in contact.