Excrement clamping device for animal metabolite test
By designing an excrement gripping device with an elastic gripping component, the device automatically grips and quickly replaces the gripper, solving the problems of muscle fatigue and contamination caused by manual control in traditional devices, and improving the operational efficiency and hygiene of animal metabolite experiments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGANMEN HOSPITAL CHINA ACAD OF CHINESE MEDICAL SCI
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-12
AI Technical Summary
In traditional animal metabolite experiments, excrement gripping devices rely on manually pulling a push rod to control the opening and closing of the gripper, which requires the operator to hold it continuously, increasing muscle fatigue and reducing efficiency. The gripper is also prone to microbial contamination, requiring frequent cleaning, which affects the smoothness and convenience of operation.
Design a clamping device that includes an elastic clamping component, which automatically clamps excrement using the spring's rebound force, reducing the need for continuous holding, and avoids contamination by quickly changing the clamp head, thus achieving automatic clamping and fixation and simplifying the cleaning process.
It improves operational comfort and efficiency, reduces hand fatigue, ensures the hygiene and continuity of operations, simplifies cleaning work, and enhances the convenience and smoothness of experiments.
Smart Images
Figure CN224223879U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of animal metabolite testing, specifically to an excrement clamping device for animal metabolite testing. Background Technology
[0002] In existing animal testing centers of schools, medical systems, and research institutions, animals are frequently used for various metabolic experiments. These include drug metabolism experiments on animals after medication, animal nutritional metabolism experiments after feeding animals foods containing different nutrients, and animal digestive microbiota metabolism experiments after intervening in the gut microbiota with medication or functional foods. The core of these experiments involves collecting and analyzing animal excrement, especially feces, to detect changes in quantitative indicators. Experimental animals are typically small animals such as mice and rabbits, but medium to large animals such as sheep and monkeys are also used. Current techniques for collecting animal feces generally involve using conventional instruments such as tweezers to grasp the feces, or directly pinching and collecting it while wearing sterile gloves.
[0003] According to the published patent 202122427174.4, an excrement clamping device for animal metabolite testing, it includes a handle, a hollow column, a control part, and an opening and closing clamping part. This utility model can easily reach into the feeding cage to clamp the object to be clamped, or after the excrement receiving tray is removed from the feeding cage, the device can be used to clamp and collect the required object, which is practical and convenient. The control part and the opening and closing clamping part of the clamping device are far apart, which can completely avoid the experimenter from coming into contact with the animal excrement. The bottom of the opening and closing clamping part of the clamping device has a dirt-proof contact structure, which is hygienic, convenient, and does not easily contaminate the clamp head, thus eliminating the need to clean the clamp head and avoiding clamp head contamination or cross-contamination between different experimental subjects.
[0004] However, in traditional animal metabolite experiments, the excrement gripping devices typically rely on manually pulling a lever to control the opening and closing of the gripper. Once the gripper successfully grasps the excrement, the operator must maintain continuous tension on the lever to prevent the gripper from reopening due to release of force, which could cause the excrement to fall out. This results in the operator's hand being in a continuous, tense gripping state throughout the entire gripping operation, increasing hand muscle fatigue and reducing work efficiency. Furthermore, after gripping the excrement, the gripper surface often becomes contaminated with a large number of microorganisms (such as bacteria) and excrement residue. This contamination requires frequent and thorough cleaning of the gripper to meet hygiene and safety standards. However, this repetitive cleaning work is not only time-consuming and labor-intensive but also reduces the smoothness and convenience of the experimental operation. Therefore, a new technical solution is needed to address this issue. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and meet practical needs by providing an excrement gripping device for animal metabolite testing. This addresses the problem that current excrement gripping devices in traditional animal metabolite testing typically rely on manually pulling a push rod to control the opening and closing of the gripper. Once the gripper successfully grips the excrement, the operator must maintain continuous tension on the push rod to prevent the gripper from reopening due to the release of the force, which could cause the excrement to fall out. This results in the operator's hands maintaining a continuous, tense grip throughout the gripping process, increasing hand muscle fatigue and reducing work efficiency. Furthermore, after gripping the excrement, the gripper's surface is often contaminated with a large number of microorganisms (such as bacteria) and excrement residue. This contamination requires frequent and thorough cleaning of the gripper to meet hygiene and safety standards. However, this repetitive cleaning work is not only time-consuming and labor-intensive but also reduces the smoothness and convenience of the experimental operation.
[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a device for picking up excrement for animal metabolite testing is designed, including a device housing, a top cover is installed on the top of the device housing, a set of through holes are opened on both sides of the device housing, each set of through holes has two through holes, a movable rod passes through the two through holes, a movable block is fixed at one end of the movable rod extending out of the through hole, and an elastic gripping component is provided at one end of the movable rod located inside the device housing.
[0007] Preferably, the elastic clamping assembly includes a movable plate, a first spring, a limiting block, and a clamping head.
[0008] Preferably, the movable plate is fixed to the movable rod located inside the device housing, and one end of a first spring is fixed to both the upper and lower sides of one end of the movable plate, while the other end of the first spring is fixed to the inner side of the device housing.
[0009] Preferably, a limiting block is fixed at the bottom of the movable plate, a slot is provided at the bottom of the limiting block, a card block is engaged inside the slot, and a gripping head is fixed at the bottom of the card block.
[0010] Preferably, the limiting block has a circular hole on its side, a fixing cylinder is installed inside the circular hole, and one end of the pull rod extends into the fixing cylinder.
[0011] Preferably, a movable disc is fixed to one end of the pull rod inside the fixed cylinder, and an insert block is fixed to one end of the movable disc. The end of the insert block away from the movable disc passes through the fixed cylinder and the limiting block and extends into the slot, where it is inserted into the limiting groove on the surface of the slot block.
[0012] Preferably, a second spring is fixed to the other end of the movable disc, and a pull rod located inside the fixed cylinder passes through the second spring.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model combines a movable block, a movable rod, and a spring-loaded gripping assembly. In its non-use state, the excrement gripping device automatically maintains the two gripping heads in a tightly closed state thanks to the spring's rebound force within the spring-loaded gripping assembly. This effectively prevents dust accumulation on the inner walls of the gripping heads when idle. When performing a gripping operation, the operator only needs to press their finger against the movable block, moving the block and rod to open the two gripping heads for accurate gripping of the excrement. After gripping the excrement, the operator simply withdraws their finger from the movable block, and the spring, utilizing its inherent elasticity, drives the gripping heads to close quickly and securely, achieving [the desired gripping action]. The automatic clamping and securing of excrement reduces the burden on operators who need to apply continuous force during operation, improving work efficiency and comfort. It solves the technical problem that in current traditional animal metabolite experiments, the excrement clamping device usually relies on manually pulling a push rod to control the opening and closing of the clamp. Once the clamp successfully clamps the excrement, the operator must maintain a continuous pulling force on the push rod to prevent the clamp from reopening due to the release of the push force, which would cause the excrement to fall off. This means that the operator's hands must maintain a continuous and tense grip during the entire clamping operation, which not only increases hand muscle fatigue but also reduces work efficiency.
[0015] 2. This utility model, through the combination of a fixed cylinder, a second spring, and a limiting block, allows the limiting block to disengage smoothly from its limiting groove by pulling the lever after the excrement is gripped. This enables quick and convenient disassembly and replacement of the gripping head. Subsequently, by directly installing a new gripping head, the tedious and repetitive cleaning process of the used gripping head can be effectively avoided. This allows technicians to quickly replace the gripping head with a clean one after gripping excrement, thus seamlessly connecting to the next excrement gripping operation, improving work efficiency, and ensuring the hygiene and continuity of operation. It solves the problem that after gripping excrement, the surface of the gripper is often contaminated with a large number of microorganisms (such as bacteria) and excrement residue. This contamination requires frequent and thorough cleaning of the gripper to meet hygiene and safety standards. However, this repetitive cleaning work is not only time-consuming and laborious, but also reduces the smoothness and convenience of experimental operations. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the elastic clamping component structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the fixed cylinder structure of this utility model.
[0019] In the diagram: 1. Device housing; 101. Top cover; 2. Through hole; 201. Moving rod; 202. Moving block; 203. Limiting block; 204. Gripping head; 205. First spring; 206. Moving plate; 3. Round hole; 301. Fixed cylinder; 302. Second spring; 303. Pull rod; 304. Insert block; 305. Limiting groove; 306. Locking block; 307. Locking groove; 308. Moving disc. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0021] Example 1: An excrement grasping device for animal metabolite testing, see [link to example]. Figures 1 to 3The device includes a housing 1, with a top cover 101 mounted on the top. Two through holes 2 are provided on each side of the housing 1. A movable rod 201 passes through each through hole 2. A movable block 202 is fixed to one end of the movable rod 201 extending out of the through hole 2. A spring-loaded gripping component is provided at the end of the movable rod 201 inside the housing 1. First, the operator inserts their thumb and forefinger through the reserved spaces on both sides of the housing 1 until their fingertips can touch the movable blocks 202 on both sides. When it is necessary to adjust the position... When the waste is being grasped, the operator uses their thumb and forefinger to push the movable blocks 202 on both sides of the device housing 1 outwards. When the movable blocks 202 are subjected to external force, they will cause the movable rod 201 to slide within the through hole 2 reserved on the device housing 1. As the movable rod 201 slides, it is connected to the movable plate 206 located inside the device housing 1, thereby causing the movable plate 206 to move accordingly. The movement of the movable plate 206 not only changes its own position, but also compresses the first spring 20 located above it. 5. The compression of the spring provides the necessary potential energy reserve for the subsequent spring reset, and also ensures the stability of the gripping head 204 during the separation process. Driven by the moving plate 206, the limiting block 203 at its bottom and the gripping head 204 connected to it also begin to separate. Due to the fixed connection between the limiting block 203 and the gripping head 204, the gripping head 204 will separate as the limiting block 203 moves, thus providing sufficient space for the placement of excrement. Once the two gripping heads 204 are correctly placed on the excrement... On both sides, the operator can release the fingers that are pressing against the moving block 202. At this time, the first spring 205, which was previously compressed, begins to reset using its inherent elasticity. The reset of the spring causes the moving plate 206 and the connected limiting block 203 and gripping head 204 to move in opposite directions, that is, the two gripping heads 204 begin to close. Since the force of the spring reset is usually greater than the force required for the operator to manually separate the gripping heads 204, the gripping heads 204 can quickly and firmly hold the excrement during the closing process. This automatic clamping and fixing method reduces the burden on operators who need to apply continuous force during the clamping process, while also improving work efficiency and operational comfort. It solves the technical problem that in current traditional animal metabolite experiments, the excrement clamping device usually relies on manually pulling a push rod to control the opening and closing of the clamp. Once the clamp successfully clamps the excrement, the operator must maintain a continuous pulling force on the push rod to prevent the clamp from reopening due to the release of the push force, which would cause the excrement to fall off. This results in the operator's hand having to maintain a continuous, tense grip during the entire clamping operation, which not only increases hand muscle fatigue but also reduces work efficiency.
[0022] For details, see Figure 2The elastic gripping assembly includes a movable plate 206, a first spring 205, a limiting block 203, and a gripping head 204.
[0023] Further, see Figure 2 The movable plate 206 is fixed to the movable rod 201 located inside the device housing 1. One end of the first spring 205 is fixed to both the upper and lower sides of one end of the movable plate 206, and the other end of the first spring 205 is fixed to the inner side of the device housing 1.
[0024] It is worth noting that, see Figure 3 The bottom of the movable plate 206 is fixed with a limiting block 203. The bottom of the limiting block 203 is provided with a slot 307. A card block 306 is engaged inside the slot 307. A gripping head 204 is fixed at the bottom of the card block 306.
[0025] It is worth noting that, see Figure 3 The limiting block 203 has a circular hole 3 on its side, and a fixing cylinder 301 is installed inside the circular hole 3. One end of the pull rod 303 extends into the fixing cylinder 301.
[0026] It is worth mentioning that, see Figure 3One end of the pull rod 303, located inside the fixed cylinder 301, is fixed to a movable disc 308. One end of the movable disc 308 is fixed to an insert block 304. The end of the insert block 304 furthest from the movable disc 308 passes through the fixed cylinder 301 and the limiting block 203, extending into the slot 307 and engaging with the limiting groove 305 on the surface of the slot 306. When the gripping head 204 needs to be replaced, the technician first manually pulls the pull rod 303 located on one side of the device. As the pull rod 303 is pulled, it drives the movable disc 308... 08 also moves accordingly. As the moving disc 308 moves, it compresses the second spring 302. The compression of the second spring 302 not only provides the necessary potential energy reserve for the subsequent spring reset, but also ensures the stability of the insert block 304 during the movement. Driven by the moving disc 308, the insert block 304 gradually disengages from the limiting groove 305 on the surface of the locking block 306. After the insert block 304 disengages from the limiting groove 305, the locking block 306 and the gripping head 204 lose their original fixation, and can thus be easily... Once the locking block 306 and the gripping head 204 are removed, the technician can replace the gripping head 204. During replacement, the locking block 306 at the top of the new gripping head 204 is inserted into the slot 307 at the bottom of the limiting block 203. After the new locking block 306 is inserted into the slot 307, the previously compressed second spring 302 begins to reset using its inherent elasticity. The spring's reset causes the moving disc 308 and the connected insert block 304 to move in the opposite direction. 04 During the movement, it will gradually enter the limiting groove 305 on the surface of the new card block 306, thereby fixing the new gripper head 204. This solves the problem that after the gripper has finished gripping the excrement, its surface is often contaminated with a large number of microorganisms (such as bacteria) and excrement residue. This contamination requires the staff to frequently and thoroughly clean the gripper to meet hygiene and safety standards. However, this repetitive cleaning work is not only time-consuming and laborious, but also reduces the smoothness and convenience of the test operation.
[0027] It is worth emphasizing that, see Figure 3 The other end of the movable disc 308 is fixed with a second spring 302, and the pull rod 303 located in the fixed cylinder 301 passes through the second spring 302.
[0028] When using an excrement gripping device for animal metabolite testing, the operator first inserts their thumb and forefinger through the reserved spaces on both sides of the device housing 1 until their fingertips can touch the movable blocks 202 on both sides. When it is necessary to grip the excrement, the operator pushes the movable blocks 202 on both sides outward by simultaneously applying force with their thumb and forefinger. When the movable blocks 202 are subjected to external force, they will drive the movable rod 201 to slide within the reserved through hole 2 on the device housing 1. As the movable rod 201 slides, it is connected to the movable plate 206 located inside the device housing 1, thereby causing the movable plate 206 to move accordingly. The movement of the movable plate 206 not only changes its own position but also compresses the first spring 205 located above it. The compression of the spring provides the necessary potential energy reserve for the subsequent spring reset and also ensures the stability of the gripping head 204 during the separation process. Driven by the movable plate 206, the limiting block 203 at its bottom and the gripping head 204 connected thereto also begin to separate. Due to the fixed connection between the limiting block 203 and the gripping head 204, the gripping head 204 will separate as the limiting block 203 moves, thus providing sufficient space for the placement of excrement. Once the two gripping heads 204 are correctly placed on both sides of the excrement, the operator can release the fingers pressing against the movable block 202. At this time, the previously compressed first spring 205 begins to reset using its inherent elasticity. The reset of the spring drives the movable plate 206 and the connected limiting block 203 and gripping head 204 to move in opposite directions, that is, the two gripping heads 204 begin to close. Since the force of the spring reset is usually greater than the force required for the operator to manually separate the gripping heads 204, the gripping heads 204 can quickly and firmly hold the excrement during the closing process.This automatic clamping and fixing method reduces the burden on operators who need to apply continuous force during the clamping process, while also improving work efficiency and operational comfort. When the clamping head 204 needs to be replaced, the technician first manually pulls the lever 303 located on one side of the device. As the lever 303 is pulled, the moving disc 308 also moves accordingly. As the moving disc 308 moves, it compresses the second spring 302. The compression of the second spring 302 not only provides the necessary potential energy reserve for the subsequent spring reset, but also ensures the stability of the insertion block 304 during movement. Driven by the moving disc 308, the insertion block 304 gradually disengages from the limiting groove 305 on the surface of the locking block 306. After step 305, the locking block 306 and the gripping head 204 lose their original fixation and can be easily removed. Once the locking block 306 and the gripping head 204 are removed, the technician can replace the gripping head 204. During replacement, the locking block 306 on the top of the new gripping head 204 is inserted into the slot 307 at the bottom of the limiting block 203. After the new locking block 306 is inserted into the slot 307, the previously compressed second spring 302 begins to reset using its inherent elasticity. The spring's reset causes the moving disc 308 and the connected insert 304 to move in the opposite direction. During the movement, the insert 304 gradually enters the limiting groove 305 on the surface of the new locking block 306, thereby fixing the new gripping head 204.
[0029] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.
[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.
Claims
1. An excrement clamping device for animal metabolite testing, comprising a device housing (1), wherein a top cover (101) is mounted on the top of the device housing (1), characterized in that, The device housing (1) has a set of through holes (2) on both sides. Each set of through holes (2) consists of two holes. A moving rod (201) passes through the two through holes (2). A moving block (202) is fixed to one end of the moving rod (201) that extends out of the through hole (2). An elastic clamping component is provided at one end of the moving rod (201) located inside the device housing (1).
2. The excrement grasping device for animal metabolite testing as described in claim 1, characterized in that, The elastic gripping assembly includes a movable plate (206), a first spring (205), a limiting block (203), and a gripping head (204).
3. The excrement grasping device for animal metabolite testing as described in claim 2, characterized in that, The movable plate (206) is fixed to the movable rod (201) located inside the device housing (1). One end of the first spring (205) is fixed on both the upper and lower sides of one end of the movable plate (206), and the other end of the first spring (205) is fixed to the inner side of the device housing (1).
4. The excrement grasping device for animal metabolite testing as described in claim 2, characterized in that, The bottom of the movable plate (206) is fixed with a limiting block (203), and the bottom of the limiting block (203) is provided with a slot (307). A card block (306) is engaged inside the slot (307), and a gripping head (204) is fixed at the bottom of the card block (306).
5. The excrement grasping device for animal metabolite testing as described in claim 2, characterized in that, The limiting block (203) has a circular hole (3) on its side, and a fixing cylinder (301) is installed inside the circular hole (3). One end of the pull rod (303) extends into the fixing cylinder (301).
6. The excrement grasping device for animal metabolite testing as described in claim 5, characterized in that, The pull rod (303) is fixed with a movable disc (308) at one end inside the fixed cylinder (301). The movable disc (308) is fixed with an insert (304) at one end. The end of the insert (304) away from the movable disc (308) passes through the fixed cylinder (301) and the limiting block (203) and extends into the slot (307), where it is inserted into the limiting groove (305) on the surface of the slot (306).
7. The excrement grasping device for animal metabolite testing as described in claim 6, characterized in that, The other end of the movable disc (308) is fixed with a second spring (302), and the pull rod (303) located in the fixed cylinder (301) passes through the second spring (302).