A weighing elastomer pressure testing device

Abstract

The utility model discloses a kind of weighing elastomer pressure test equipment, including stand, clamping and pressing assembly, pound platform group and linkage rod. The clamping and pressing assembly is set on the horizontal table of stand top, including movable clamp holder, fixed clamp holder and adjusting rod, adjusting rod is connected to the bottom of fixed clamp holder and can be slidably adjusted, movable clamp holder is connected with linkage rod by connecting rod assembly. The pound platform group is set below stand, including guide rod, pound seat and deflection rod, pound seat is used for loading weight, its bottom and deflection rod sliding contact, deflection rod middle part and linkage rod bottom end rotationally connected, other end and stand rotationally installed. The adjusting rod bottom is equipped with ratchet bar, and is locked by cooperating with lock tooth plate engagement, and deflection rod and stand are equipped with tension spring. By single operation of linkage rod, clamping and loading action can be realized simultaneously, and have self-resetting function. The equipment structure is compact, convenient to adjust, test efficiency is high, suitable for different specifications weighing elastomer's fast and stable clamping and loading test.

Description

Technical Field

[0001] This utility model relates to the field of weighing device testing technology, specifically a weighing elastomer pressure testing device. Background Technology

[0002] As a core component of electronic weighing instruments, the performance testing of weighing elastomers is crucial for quality control. Currently, the industry typically uses manual loading or mechanical indenters in conjunction with a weighing platform to test the weighing elastomers, verifying their linear response, sensitivity, and rebound characteristics under stress. These testing devices are mostly of a "split-type structure," typically including an independent clamping mechanism, a separate loading mechanism, and a weighing platform, commonly found in university laboratories and enterprise quality control processes.

[0003] In the above structure, the clamping mechanism and the loading mechanism are usually independent of each other. For example, a threaded knob-type clamp or hydraulic gripper is used to position the elastic body, while the loading is accomplished by a lever-weight system or a screw-pressurization system. In practical use, this type of structure has the following main problems:

[0004] The operation process is cumbersome and inefficient. Since the clamping and loading processes are independent of each other, the operator must first manually clamp the sample and then adjust the loading path and loading force. This is not only time-consuming, but also requires frequent repetition of the adjustment steps when switching between different specifications of elastomer samples, which significantly reduces the testing efficiency.

[0005] The structure is complex and the linkage is poor. In the existing technology, the clamping and loading actions lack structural linkage, resulting in a large overall space occupation, numerous connecting parts, difficult maintenance, and high assembly and adjustment costs.

[0006] The lack of a self-resetting mechanism results in a poor user experience. After clamping and loading are completed, the loading and reset devices must be manually released, which can easily lead to misoperation or device jamming, reducing the continuity of the test.

[0007] In summary, existing weighing elastomer pressure testing equipment has significant shortcomings in terms of operational linkage, ease of adjustment, adaptability, and testing efficiency. There is an urgent need for an improved device with a more compact structure, more efficient adjustment, more convenient operation, and coordinated clamping and loading actions to meet the pressing needs of the modern electronic weighing industry for efficient and standardized testing processes. Utility Model Content

[0008] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0009] Therefore, the technical solution adopted by this utility model is: a weighing elastomer pressure testing device, including a stand, a clamping assembly, a weighing platform and a linkage rod. It has a compact structure and coordinated operation, and can adapt to the rapid clamping and mechanical loading of various specifications of weighing elastomers. The whole device has good practicality and industrial applicability.

[0010] In a preferred embodiment, the clamping assembly includes a movable clamp seat, a fixed clamp seat, and an adjusting rod. One end of the adjusting rod is slidably sleeved on the inner side of the cross platform, and the fixed clamp seat is fixedly connected to the bottom of the adjusting rod. The movable clamp seat is slidably mounted on the surface of the cross platform and connected to the upper end of the linkage rod through a connecting rod assembly. The connecting rod assembly consists of a first connecting rod and a second connecting rod. One end of the first connecting rod is rotatably connected to the movable clamp seat, and the other end is rotatably connected to the second connecting rod. The other end of the second connecting rod is rotatably connected to the surface of the cross platform. At the same time, a pin is provided at the connection end between the first connecting rod and the second connecting rod, which is rotatably connected to the top end of the linkage rod.

[0011] Specifically, during vertical movement, the linkage will drive the linkage mechanism, causing the movable clamp to slide horizontally towards the fixed clamp, thereby realizing the clamping or releasing operation of the symmetrical elastic body, which has the effect of sensitive action response and strong structural linkage.

[0012] In a preferred embodiment, the bottom of the adjusting rod is provided with a ratchet rack, and a movable lug is rotatably mounted on the bottom end of the cross platform. One end of the movable lug is rotatably connected to a locking plate, and the surface of the locking plate meshes with the ratchet rack. A tension spring is provided between the movable lug and the bottom surface of the cross platform to maintain stable contact between the locking plate and the ratchet rack.

[0013] Specifically, the structure allows the operator to quickly adjust the position of the fixed clamp before the test to adapt to weighing elastomers of different widths, and fix the position by ratchet locking after the adjustment is completed, thus taking into account both the convenience of adjustment and the reliability of locking.

[0014] In a preferred example, the movable clamp and the fixed clamp are arranged opposite to each other, and the bottom surface of the movable clamp is slidably connected to the top surface of the cross platform. The relative clamping surfaces of the movable clamp and the fixed clamp are provided with protruding structures to realize the positioning and limiting of the weighing elastic body in the horizontal direction.

[0015] Specifically, this positioning structure effectively prevents the axial slippage of the weighing elastomer during the loading process, improving the repeatability of the test and the stability of the results.

[0016] In a preferred example, the weighing platform assembly includes a guide rod, a weighing base, and a deflection rod. The guide rod is vertically positioned to guide the weighing base to slide. The bottom surface of the weighing base slides against the end of the deflection rod. The surface of the weighing base is provided with a groove for placing and loading weights. The middle part of the deflection rod is rotatably connected to the bottom end of the linkage rod, and the other end is rotatably installed with the upright frame.

[0017] Specifically, the downward pressing action of the linkage rod can drive the deflection rod to rotate, thereby pushing the symmetrical weight elastic body of the weighing seat upward to apply a loading force, realizing the synchronous linkage between the loading process and the clamping process, improving test efficiency and avoiding misoperation.

[0018] In a preferred example, a tension spring is provided between the deflector rod and the upright, which provides a restoring force after loading is completed to balance the weight of the deflector rod, the weight plate, and the linkage system.

[0019] Specifically, this design allows the weighbridge assembly and clamping components to automatically reset to their initial positions after the test is completed, improving the continuity and automation of equipment use.

[0020] In a preferred example, the meshing tooth profile of the ratchet rack and the locking plate is a right-angled triangle.

[0021] Specifically, the toothed structure has excellent one-way self-locking characteristics, which can prevent the adjusting rod from slipping back under the reaction of external force, and ensure the clamping stability of the fixed clamp during the loading process.

[0022] In summary, this utility model, by introducing a linkage control structure, achieves synchronous driving of clamping and loading. At the same time, it is equipped with an adjustable locking mechanism and an elastic recovery component, which not only improves the efficiency of testing operations, but also enhances the adaptability and stability of the equipment to elastomers of various specifications, and significantly optimizes the pressure testing process of weighing elastomers.

[0023] The beneficial effects achieved by this utility model are as follows:

[0024] 1. In this utility model, the clamping assembly is connected to the linkage rod through a linkage mechanism, realizing the coordinated linkage of clamping and loading actions. The clamping and pressing operations can be completed simultaneously by driving a single linkage rod, which simplifies the operation process and improves the test efficiency and structural compactness.

[0025] 2. In this utility model, the fixed clamp seat is adjusted in position by adjusting rod. The bottom of the adjusting rod is provided with a ratchet rack, which, together with the locking plate driven by the moving lug rod, forms a reliable locking mechanism. It can be flexibly adjusted according to the size of the elastic body and achieve position locking, thereby improving the adaptability of the equipment and the accuracy of repeated tests. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0027] Figure 2 This is a schematic diagram of the clamping assembly structure according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the weighbridge assembly structure according to an embodiment of the present invention;

[0029] Figure 4 This is an exploded structural diagram of a clamping assembly according to an embodiment of the present invention.

[0030] Figure label:

[0031] 100. Upright frame; 110. Horizontal platform;

[0032] 200 Clamping assembly; 210 Moving clamp; 220 Fixed clamp; 230 Adjusting rod; 240 Moving lug; 211 First connecting rod; 212 Second connecting rod; 231 Ratchet; 241 Locking plate;

[0033] 300. Weighbridge assembly; 310. Guide rod; 320. Weighbridge seat; 330. Deflection rod;

[0034] 400. Linkage rod. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0036] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0037] The following describes, with reference to the accompanying drawings, some embodiments of a weighing elastomer testing device provided by this utility model.

[0038] Combination Figures 1-4 As shown, the present invention provides a weighing elastomer pressure testing device, including a frame 100, a clamping assembly 200, a weighing platform 300, and a linkage rod 400. The frame 100 is vertically mounted on a base plate to support the overall structure; a horizontal platform 110 is fixedly connected to the top of the frame 100, and the horizontal platform 110 is used to install the clamping assembly 200.

[0039] The clamping assembly 200 includes a movable clamp 210, a fixed clamp 220, and an adjusting rod 230. The movable clamp 210 is slidably mounted on the surface of the horizontal platform 110 and can move along the length of the horizontal platform 110. The fixed clamp 220 is fixedly mounted on the other side of the horizontal platform 110 via the adjusting rod 230, one end of which is slidably sleeved on the inner side of the horizontal platform 110 to achieve adjustable positioning of the fixed clamp 220. The bottom of the adjusting rod 230 is provided with a ratchet 231, which is a toothed structure arranged along the adjustment direction. One side of the movable clamp 210 is rotatably connected to the first connecting rod 211 via a pin, and the other end of the first connecting rod 211 is rotatably connected to the second connecting rod 212. One end of the second connecting rod 212 is rotatably connected to the surface of the horizontal platform 110, and the other end is rotatably connected to the top end of the linkage rod 400 via a pin. Through the above structure, the up and down movement of the linkage rod 400 can drive the movable clamp 210 to perform a clamping action.

[0040] like Figure 2 and Figure 3 As shown, the clamping assembly 200 further includes a movable lug 240. One end of the movable lug 240 is rotatably mounted on the bottom end of the crossbeam 110, and the other end is rotatably connected to a locking plate 241. The locking plate 241 engages with a ratchet rack 231 at the bottom of the adjusting rod 230 to lock the position of the adjusting rod 230 and prevent the fixed clamp 220 from shifting during operation. A tension spring is provided between the movable lug 240 and the crossbeam 110 to provide locking force, thereby maintaining continuous engagement between the locking plate 241 and the ratchet rack 231, thus ensuring the fixed clamp 220 is reliably fixed in the adjusted position. Before testing the weighing elastomers of different specifications, the operator can move the movable lug 240 to disengage the locking plate 241 from the ratchet 231, adjust the position of the adjusting rod 230 to change the distance between the fixed clamp 220 and the movable clamp 210; after adjustment, re-engage the locking plate 241 and the ratchet 231 to complete the position locking.

[0041] like Figure 4 As shown, the weighing platform assembly 300 includes a guide rod 310, a weighing base 320, and a deflection rod 330. The guide rod 310 is vertically mounted on the base plate, and the weighing base 320 is slidably mounted on the surface of the guide rod 310 to support the elastic body to be weighed and to apply load. The surface of the weighing base 320 is provided with a groove for placing weights of different weights, thereby loading the symmetrically weighed elastic body. One end of the deflection rod 330 is rotatably connected to the surface of the stand 100, and the other end slides against the bottom surface of the weighing base 320. The bottom end of the linkage rod 400 is rotatably connected to the middle of the deflection rod 330. The up-and-down movement of the linkage rod 400 can drive the deflection rod 330 to rotate, thereby lifting the weighing base 320 and realizing the loading of the symmetrically weighed elastic body.

[0042] To improve the system's self-resetting capability, a tension spring is installed between the deflection rod 330 and the support frame 100. Under the weight of the weighing base 320, the tension spring provides an upward restoring force to balance the gravity generated by the weighing base 320, the deflection rod 330, the first connecting rod 211, and the second connecting rod 212, so that the device can automatically return to its initial state after the test is completed.

[0043] In this embodiment, the movable clamp 210 and the fixed clamp 220 are arranged opposite to each other, and the contact area of ​​their opposite surfaces is provided with a protruding structure for positioning and engaging with the weighing elastic body, thereby preventing axial displacement during the test loading process and improving the accuracy of the test results.

[0044] Furthermore, the meshing surfaces of the ratchet rack 231 and the locking plate 241 are provided with a right-angled triangular tooth structure, which can effectively lock the fixed clamp 220 in the direction away from the moving clamp 210 and prevent the adjusting rod 230 from slipping back.

[0045] This embodiment, through the above structural design, achieves clamping and loading actions simultaneously using a single linkage rod 400 without requiring a complex drive device. It has a compact structure, is easy to operate, and is suitable for clamping and testing elastomers of different specifications. It has good practicality and adjustability.

[0046] Working principle and usage process of this utility model:

[0047] This invention utilizes a linkage structure to drive the clamping assembly and the weighing platform in a coordinated manner, thereby achieving the fixed clamping and load loading of the symmetrically weighted elastic body to test its mechanical properties.

[0048] 1. Working principle of the clamping assembly:

[0049] The movable clamp 210 and the fixed clamp 220 are used to clamp the weighing elastic body. The fixed clamp 220 can be adjusted back and forth by adjusting rod 230 to adapt to elastic bodies of different specifications; after adjustment, its position can be locked by the meshing structure of ratchet rack 231 and locking plate 241 to prevent displacement; the movable clamp 210 is connected to the linkage rod 400 through the first link 211 and the second link 212; the up and down movement of the linkage rod 400 will drive the linkage mechanism, thereby driving the movable clamp 210 to move back and forth to achieve clamping or releasing.

[0050] 2. Working principle of the weighbridge assembly:

[0051] The weighbridge assembly includes a guide rod 310, a sliding weighbridge seat 320, and a deflection rod 330. The bottom end of the linkage rod 400 is connected to the deflection rod 330, so that while clamping, the weighbridge seat 320 is lifted upward or loaded with a weighing elastic body. The guide rod 310 provides vertical guidance to the weighbridge seat 320 to stabilize the loading process. The tension spring between the deflection rod 330 and the upright 100 is used to balance its own weight when unloaded, ensuring that the linkage components return to their original positions.

[0052] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A weighing elastomer pressure testing device, characterized in that, include: The system comprises a frame (100), a clamping assembly (200), a weighing platform assembly (300), and a linkage rod (400). A horizontal platform (110) is fixedly connected to the top of the frame (100). The clamping assembly (200) includes a movable clamp seat (210), a fixed clamp seat (220), and an adjusting rod (230) fixed to the bottom surface of the fixed clamp seat (220). One end of the adjusting rod (230) is slidably sleeved onto the inner side of the horizontal platform (110). The movable clamp seat (210) is slidably mounted on the surface of the horizontal platform (110), and a first connecting rod (211) is rotatably connected to one side of the movable clamp seat (210). The other end of the first connecting rod (211) is rotatably connected to a second connecting rod. The connecting rod (212) is connected to the first connecting rod (211) at the end of which a pin is rotatably connected to the top of the linkage rod (400). The other end of the second connecting rod (212) is rotatably connected to the surface of the cross platform (110). The weighing platform assembly (300) includes a guide rod (310), a weighing seat (320), and a deflection rod (330) rotatably mounted on the surface of the upright frame (100). The bottom end of the linkage rod (400) is rotatably connected to the surface of the deflection rod (330). One end of the deflection rod (330) slides against the bottom surface of the weighing seat (320). The weighing seat (320) is slidably mounted on the surface of the guide rod (310).

2. The weighing elastomer pressure testing device according to claim 1, characterized in that, A movable lug (240) is rotatably mounted on the bottom end of the cross platform (110). A locking tooth plate (241) that abuts against the bottom surface of the adjusting rod (230) is rotatably mounted on one end of the movable lug (240). A ratchet rack (231) that abuts against the surface of the locking tooth plate (241) is provided on the bottom surface of the adjusting rod (230). A tension spring is provided between the surface of the movable lug (240) and the bottom surface of the cross platform (110) to maintain the meshing between the locking tooth plate (241) and the ratchet rack (231). Specifically, before testing the weighing elastomers of different specifications, the adjusting rod (230) and the fixed clamp (220) can slide freely by disengaging the locking plate (241) from the ratchet (231), adjusting the initial distance between the fixed clamp (220) and the moving clamp (210) to perform the initial clamping of the weighing elastomer. Furthermore, the position locking of the adjusting rod (230) and the fixed clamp (220) is achieved by engaging the locking plate (241) and the ratchet (231).

3. The weighing elastomer pressure testing device according to claim 1, characterized in that, The movable clamp (210) and the fixed clamp (220) are arranged opposite to each other, and the bottom surface of the movable clamp (210) is slidably connected to the top surface of the cross platform (110). The opposite surfaces of the movable clamp (210) and the fixed clamp (220) are provided with protruding structures for positioning the weighing elastic body.

4. The weighing elastomer pressure testing device according to claim 1, characterized in that, The deflection rod (330) and the support frame (100) are provided with interconnected tension springs. Under the weight of the weighing seat (320), the tension springs balance the weight of the deflection rod (330), the weighing seat (320), the first connecting rod (211), and the second connecting rod (212).

5. A weighing elastomer pressure testing device according to claim 2, characterized in that, The ratchet (231) and locking plate (241) have right-angled triangular teeth on their surfaces. The ratchet (231) and locking plate (241) mesh with each other to achieve sliding locking of the fixed clamp (220) away from the moving clamp (210) in the direction of movement.

6. The weighing elastomer pressure testing device according to claim 1, characterized in that, The guide rod (310) is used to vertically guide the sliding of the weighing base (320), and the surface of the weighing base (320) is provided with a groove for placing weights of different weights.

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