Head fixing device for animal respiration experiment
By designing an adjustable head fixation device, the problem that existing devices cannot adapt to different animal heights and head sizes is solved, and stable fixation and protection of the head are achieved in animal breathing experiments.
Patent Information
- Application Number
- CN202423078877.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing animal respiration experiment restraint devices cannot be flexibly adjusted according to the different heights and head sizes of animals, resulting in inconvenience in use.
A head-fixing device was designed, comprising components such as a fixed base, a limiting plate, an extension rod, a fixing pin, and a head-fixing sleeve. The device achieves stable fixation of the animal's head by adjusting the height of the limiting plate, the telescopic fixing rod, and the rotating handle, combined with the protection of rubber pads and springs.
It enables flexible adjustment based on individual animal differences, reduces stress response, ensures stable fixation of the animal's head during experiments, and prevents excessive compression.
Smart Images
Figure CN223930262U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixation device technology, and in particular to a head fixation device for animal breathing experiments. Background Technology
[0002] In animal physiology and biomedical research, respiratory experiments are an important research area. In order to accurately measure the respiratory parameters of animals, researchers usually need to design an effective fixation device to ensure the stability of the animal's head during the experiment and reduce its stress response.
[0003] Existing restraint devices are structurally simple and inconvenient for staff to adjust their height or size according to the animal's head size, which negatively impacts their use. To address these shortcomings, we propose a head restraint device for animal respiratory experiments. Utility Model Content
[0004] The main purpose of this invention is to provide a head fixation device for animal breathing experiments, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A head fixation device for animal respiratory experiments includes a fixed base. Two sets of uprights are symmetrically arranged on the upper outer surface of the fixed base. A limiting plate is provided above the fixed base. Two sets of extension rods are symmetrically arranged on the lower outer surface of the limiting plate. Positioning holes are provided on the inner walls of both the extension rods and the uprights. A fixing pin is provided at the front end of each upright, passing through the inner walls of both the uprights and the extension rods. Two sets of first sliding grooves are symmetrically arranged on the inner wall of the limiting plate. A pressure plate is provided at the front end of the limiting plate. A groove is provided on the middle inner wall of both the limiting plate and the pressure plate. A rubber pad is provided on one side of each groove. Two sets of second sliding grooves are symmetrically arranged on the inner wall of the pressure plate. Two sets of third rotating handles are symmetrically arranged at the front end of the pressure plate. The hand-mounted device has multiple sets of fixing rods symmetrically arranged at the front end of the limiting plate. The inner wall of each fixing rod has multiple sets of positioning holes and fixing pins. A first rotating handle is located at the rear end of each fixing rod. Two sets of fixing side rods are located at the front end of each fixing rod. Each set of fixing side rods has a head fixing sleeve on one side. Each set of head fixing sleeves has multiple sets of fixing blocks on one side, and a threaded rod and a limiting slide rod on the other side. The limiting slide rods are symmetrically arranged on the upper and lower sides of the threaded rod. The threaded rod and the limiting slide rod pass through the inner wall of the fixing side rod. A second rotating handle is located at one end of the threaded rod. A telescopic rod is located between the fixing block and the head fixing sleeve, and a spring is installed inside the telescopic rod.
[0007] Preferably, the column is fixedly mounted on the upper outer surface of the fixed base, the extension rod is fixedly mounted on the lower outer surface of the limiting plate, the extension rod slides inside the column, and the extension rod is detachably connected to the column through a positioning hole and a fixing pin.
[0008] Preferably, the rubber pad is detachably connected to the groove, the third rotating handle passes through the inner side of the second slide groove and is threadedly connected to the limiting plate, and the pressure plate is detachably connected to the limiting plate through the provided third rotating handle.
[0009] Preferably, the first rotating handle is threadedly connected to the fixed rod, and the fixed rod is detachably connected to the limiting plate through the first rotating handle and the first sliding groove. One end of the fixed rod is fixedly disposed on one side of the fixed side rod.
[0010] Preferably, the threaded rod is threadedly connected to the fixed side rod, one end of the limiting slide rod is fixedly disposed on one side of the head fixing sleeve, and the limiting slide rod is slidably connected to the fixed side rod.
[0011] Preferably, one end of the threaded rod is rotatably connected to the head fixing sleeve, and the other end is fixedly provided with a second rotating handle. The fixing block is fixedly provided at one end of the telescopic rod. The fixing block is detachably connected to the head fixing sleeve through the telescopic rod. The spring is detachably connected to the telescopic rod.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. In this utility model, the extension rod and fixing pin allow workers to easily adjust the height of the limiting plate and the pressure plate according to the height of the animal's head, so that the animal's neck is locked inside the groove. The neck is protected by the rubber pad, and the animal's neck is locked and limited by the pressure plate and the limiting plate. Then, the animal's head is fixed by the head fixing sleeve.
[0014] 2. In this utility model, the fixed rod and fixed pin facilitate the extension and retraction of the fixed rod by the staff, thereby adjusting the distance between the head fixing sleeve and the animal's head. The staff can control the two sets of head fixing sleeves to move relative to each other by rotating the two sets of second rotating handles, thereby clamping the animal's head. The head fixing sleeve is limited by the set of limiting slide rod, and the animal's head is clamped by the set of multiple sets of fixing blocks. The fixing blocks are buffered by the set of springs to prevent excessive compression. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2This is a schematic diagram of the limiting plate structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the head fixing sleeve structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the fixing block structure of this utility model.
[0019] In the diagram: 1. Fixed base; 2. Column; 3. Positioning hole; 4. Fixing pin; 5. Extension rod; 6. Limiting plate; 7. First slide groove; 8. Groove; 9. Rubber pad; 10. Pressure plate; 11. Fixing rod; 12. First rotating handle; 13. Fixed side rod; 14. Head fixing sleeve; 15. Threaded rod; 16. Second rotating handle; 17. Limiting slide rod; 18. Telescopic rod; 19. Spring; 20. Fixing block; 21. Second slide groove; 22. Third rotating handle. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] Example 1, as Figures 1-4 As shown, a head fixation device for animal respiration experiments includes a fixed base 1 and a limiting plate 6 above the fixed base 1. After the fixed base 1 is fixed, the operator lifts the limiting plate 6 upward according to the height of the animal's head. After adjusting it to the required height, it is positioned by the fixed pin 4 and the positioning hole 3. Grooves 8 are provided on the upper inner wall of the limiting plate 6 and the lower inner wall of the pressure plate 10. The animal's neck is locked inside the groove 8 and protected by the rubber pad 9. Then, the pressure plate 10 is moved downward to lock the animal's neck and limit its position. Finally, the third rotating handle 22 is rotated to fix the pressure plate 10 and the limiting plate 6.
[0022] Example 2, as Figures 1-4 As shown, a head fixation device for animal respiration experiments allows for the following: When an operator needs to fix an animal's head, the fixing rod 11 is extended or retracted according to the head size to adjust the distance between the head fixation sleeve 14 and the animal's head. The fixing rod 11 is positioned using the positioning hole 3 and the fixing pin 4. The height of the head fixation sleeve 14 can be adjusted by rotating the first rotating handle 12 for better fixation of the animal's head. The operator can control the two sets of head fixation sleeves 14 to move relative to each other by rotating the second rotating handle 16 to fix the animal's head. After the head fixation sleeve 14 clamps the animal's head, the animal's head is fixed by the fixing block 20. The fixing block 20 is buffered by the telescopic rod 18 and the spring 19 to prevent excessive squeezing force and over-compression of the animal's head.
[0023] It should be noted that this utility model is a head fixation device for animal respiration experiments. In use, after fixing the base 1, the operator lifts the limiting plate 6 upward according to the height of the animal's head, adjusts it to a suitable height, and then fixes it with the fixing pin 4. Then, the animal's neck is placed inside the groove 8, and the pressure plate 10 is moved downward to limit the animal's neck. Then, it is locked and fixed by the third rotating handle 22. The extension and retraction length of the fixing rod 11 is adjusted according to the distance of the head, and then fixed by the fixing pin 4. The operator rotates the second rotating handle 16 according to the size of the animal's head, thereby controlling the two sets of head fixing sleeves 14 to move relative to each other and fix the animal's head. The animal's head is fixed by multiple sets of fixing blocks 20, and the fixing blocks 20 are buffered by the spring 19 to prevent excessive squeezing force from causing damage to the animal's head. After the fixation is completed, the operator can conduct a respiration experiment on the animal, which is very convenient and quick.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A head fixation device for animal respiration experiments, comprising a fixation base (1), characterized in that: Two sets of columns (2) are symmetrically arranged on the upper outer surface of the fixed base (1). A limiting plate (6) is provided above the fixed base (1). Two sets of extension rods (5) are symmetrically arranged on the lower outer surface of the limiting plate (6). Positioning holes (3) are provided on the inner walls of the extension rods (5) and the columns (2). A fixing pin (4) is provided at the front end of the column (2). The fixing pin (4) passes through the inner walls of the column (2) and the extension rods (5). The inner wall of the limiting plate (6) is... Two sets of first sliding grooves (7) are symmetrically arranged. A pressure plate (10) is provided at the front end of the limiting plate (6). Grooves (8) are provided on the inner walls of both the limiting plate (6) and the pressure plate (10). A rubber pad (9) is provided on one side of the groove (8). Two sets of second sliding grooves (21) are symmetrically arranged on the inner wall of the pressure plate (10). Two sets of third rotating handles (22) are symmetrically arranged at the front end of the pressure plate (10). Multiple sets of fixing rods are symmetrically arranged at the front end of the limiting plate (6). (11) The inner wall of the fixing rod (11) is provided with multiple sets of positioning holes (3) and fixing pins (4). The rear end of the fixing rod (11) is provided with a first rotating handle (12). The front end of the fixing rod (11) is provided with a fixing side rod (13). There are two sets of fixing side rods (13). A head fixing sleeve (14) is provided on one side of each of the two sets of fixing side rods (13). Multiple fixing blocks (20) are provided on one side of each of the two sets of head fixing sleeves (14). A threaded rod (15) and a limiting slide rod (17) are provided on one side. The limiting slide rod (17) is symmetrically arranged on the upper and lower sides of the threaded rod (15). The threaded rod (15) and the limiting slide rod (17) pass through the inner wall of the fixed side rod (13). A second rotating handle (16) is provided at one end of the threaded rod (15). A telescopic rod (18) is provided between the fixed block (20) and the head fixing sleeve (14). A spring (19) is provided inside the telescopic rod (18).
2. The head fixation device for animal respiratory experiments according to claim 1, characterized in that: The column (2) is fixedly installed on the upper outer surface of the fixed base (1), and the extension rod (5) is fixedly installed on the lower outer surface of the limiting plate (6). The extension rod (5) slides inside the column (2) and is detachably connected to the column (2) through the positioning hole (3) and the fixing pin (4).
3. The head fixation device for animal respiratory experiments according to claim 1, characterized in that: The rubber pad (9) is detachably connected to the groove (8), the third rotating handle (22) passes through the inner side of the second slide groove (21) and is threadedly connected to the limiting plate (6), and the pressure plate (10) is detachably connected to the limiting plate (6) through the provided third rotating handle (22).
4. The head fixation device for animal respiratory experiments according to claim 1, characterized in that: The first rotating handle (12) is threadedly connected to the fixed rod (11). The fixed rod (11) is detachably connected to the limiting plate (6) through the first rotating handle (12) and the first sliding groove (7). One end of the fixed rod (11) is fixedly set on one side of the fixed side rod (13).
5. The head fixation device for animal respiratory experiments according to claim 1, characterized in that: The threaded rod (15) is threadedly connected to the fixed side rod (13), and one end of the limiting slide rod (17) is fixedly installed on one side of the head fixing sleeve (14). The limiting slide rod (17) is slidably connected to the fixed side rod (13).
6. The head fixation device for animal respiratory experiments according to claim 1, characterized in that: One end of the threaded rod (15) is rotatably connected to the head fixing sleeve (14), and the other end is fixedly provided with a second rotating handle (16). The fixing block (20) is fixedly provided at one end of the telescopic rod (18). The fixing block (20) is detachably connected to the head fixing sleeve (14) through the telescopic rod (18). The spring (19) is detachably connected to the telescopic rod (18).