Veterinary animal disease diagnosis auxiliary equipment

Abstract

The invention relates to the technical field of animal saliva collection, and discloses veterinary animal disease diagnosis auxiliary equipment which comprises a collection gun, the collection gun is composed of an extension part, a connection part and a handheld part, the veterinary animal disease diagnosis auxiliary equipment further comprises a biting part detachably installed at the end of the extension part, and the biting part comprises a biting ball and an insertion rod which are integrally formed; the diameter of the biting ball is at least half of the diameter of an opening of a target animal, the surface of the biting ball is coated with a stimulation layer capable of stimulating saliva secretion, and a flow channel extending to the surface of the biting ball is formed in the insertion rod. By adopting a feeding type non-invasive collection method, the stress response of animals can be effectively reduced, the physiological condition of the animals in a calm state can be truly reflected, meanwhile, the special design of the biting ball and the stimulation layer can attract the animals to bite and stimulate saliva secretion, and the structures of the conveying pipe and the extrusion part are matched, so that saliva collection is more efficient, and the collection effect is better. The collection process is prevented from being interrupted due to animal bite abandoning.

Description

Technical Field

[0001] The present invention relates to the technical field of animal saliva collection, and particularly to an auxiliary device for veterinary animal disease diagnosis. Background Art

[0002] Saliva is a colorless, odorless, and tasteless liquid secreted by salivary glands. Its main components include water, electrolytes, proteins, enzymes (such as amylase, lysozyme), immunoglobulins (such as IgA), DNA, RNA, fatty acids, and various microorganisms. At the same time, saliva can also reflect changes in the levels of various proteins in the blood. Therefore, it is possible to diagnose diseases through the detection of saliva.

[0003] The collection of animal saliva plays a crucial role in the diagnosis of animal diseases by veterinarians. Currently, existing animal saliva collection devices, such as a veterinary animal saliva sampling device disclosed in Chinese Patent Publication No. CN111528925B, fix the entire collection component on the mouth of the animal through a fixed strap. After the animal's saliva is secreted, it passes through a filter screen once and enters the inside of the sponge for absorption and collection, so that the sponge is convenient for collecting the animal saliva after filtering debris through the filter screen, thereby achieving the purpose of collecting animal saliva.

[0004] However, if it is fixed on the animal's mouth through a fixed strap, since it will affect the degree of its mouth opening and make it difficult to open the mouth, this may cause the animal to resist violently, resulting in the overall device falling off the mouth, thereby affecting the saliva collection work. Moreover, after the device detaches, it may be further contaminated by the animal's trampling or other behaviors, causing the collected saliva sample to be invalid and prolonging the overall work progress. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary device for veterinary animal disease diagnosis to solve at least one technical problem existing in the above-mentioned prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An auxiliary device for veterinary animal disease diagnosis, including a collection gun, the collection gun is composed of an extension part, a connection part, and a handheld part, and further includes:

[0007] A biting part detachably installed at the end of the extension part, the biting part includes an integrally formed biting ball and a plug rod, and the diameter of the biting ball is at least half of the mouth opening diameter of the target animal. The surface of the biting ball is coated with a stimulating layer that can stimulate saliva secretion, and a flow channel extending to the surface of the biting ball is provided inside the plug rod;

[0008] A collecting member, the collecting member includes a collecting tube that can be embedded and installed in the connecting portion and a conveying tube that communicates with the inside of the collecting tube, and the inserting rod can be inserted into the conveying tube to communicate with the collecting tube;

[0009] An extrusion portion, the extrusion portion is used to intermittently extrude the conveying tube along the direction of the biting ball towards the collecting tube, so that saliva can flow into the collecting tube.

[0010] Optionally, the extrusion portion includes a sliding frame installed inside the extending portion and capable of reciprocating sliding. Two adjusting blocks are slidably installed on the inner wall of the frame of the sliding frame, and extrusion wheels are rotatably installed on both of the two adjusting blocks. An embedding groove for the conveying tube to be embedded is opened at the top of the extending portion, and a breaking groove for the conveying tube to be placed between the two extrusion wheels is opened at the top of the sliding frame;

[0011] The extrusion portion further includes two groups of symmetrically arranged sliding grooves opened at the inner bottom of the extending portion. Elastic pins are respectively installed at the bottoms of the two adjusting blocks and slidably installed in the two groups of sliding grooves. Each sliding groove includes two horizontal grooves, and both ends of the two horizontal grooves are connected through inclined grooves, and a deflecting block for enabling the elastic pin to slide along the same direction path is provided at the connecting portion of the two inclined grooves.

[0012] Optionally, a second gear and a wire winding wheel fixed coaxially are rotatably installed inside the connecting portion. A pulling rope is wound around the outer wall of the wire winding wheel, and one end of the pulling rope is fixedly connected to the sliding frame. A pulling spring is connected between the side of the sliding frame away from the pulling rope and the inner wall of the extending portion. A rotating shaft is also rotatably installed on the inner wall of the connecting portion. A first gear meshing with the second gear and a hand-squeezing handle extending outside the connecting portion are fixed on the outer wall of the rotating shaft, and the diameter of the first gear is larger than that of the second gear.

[0013] Optionally, an embedding sleeve is embedded and fixed on the inner wall of the connecting portion. A groove for the collecting tube to be embedded and fixed is opened at the top of the embedding sleeve, and a perforation is also opened at the end position of the embedding sleeve.

[0014] Optionally, it further includes two rotatably hinged folding members. Semi-circular grooves are opened on the fitting surfaces of the two folding members, and the circular hole formed by the two semi-circular grooves is in interference fit with the conveying tube when wrapping it. A gun head is formed at the end of the extending portion, and a slot for the folding member to be inserted is opened at the top of the gun head, and the opening position of the slot is set as a flared opening.

[0015] Optionally, annular edge protrusions are provided on both the upper and lower sides of the extrusion wheel, and the protrusion height of the annular edge protrusion is the same as the inner wall thickness of the conveying tube.

[0016] Optionally, a liquid guiding cotton core is also filled in the inner wall of the conveying tube.

[0017] Optionally, the inlet of the flow channel opened on the outer wall of the chewing ball is located on the hemispherical surface of the chewing ball facing the insertion rod.

[0018] Optionally, both ends of the delivery pipe are provided with hard thickened sections, and the middle is provided with a soft section.

[0019] Optionally, a hand guard that wraps the hand grip is also formed between the extension part and the hand-held part.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] First, by adopting a feeding-type non-invasive collection method, the present invention is simple to operate and non-invasive, can effectively reduce the stress response of animals, and can truly reflect the physiological conditions of animals in a calm state. At the same time, the special design of the chewing ball, such as hard material, appropriate diameter, and stimulation layer, can attract animals to chew and stimulate saliva secretion. Combined with the structures of the delivery pipe and the extrusion part, saliva collection is more efficient, and the collection process is prevented from being interrupted due to animals giving up chewing.

[0022] Second, both the chewing part and the collection part of the present invention are for one-time use, which can effectively prevent cross-infection of saliva and ensure the accuracy of subsequent diagnostic test results. In addition, the device is reasonably designed. For example, the collection tube can be embedded and fixed in the groove of the embedding sleeve, and the hand-held part is convenient for single-handed operation and allows the user to free up the other hand to comfort the animal. The overall operation is convenient, efficient, and has strong repeatability. Chewing balls of different diameters can also be adapted to a variety of animals.

[0023] Third, the structural design of the extrusion part of the present invention is ingenious. Components such as the sliding frame, adjustment block, and extrusion wheel cooperate with each other to realize the one-way stroking of the delivery pipe through reciprocating sliding. This not only promotes the flow of saliva towards the collection tube but also uses the negative pressure generated by the self-restoration of the delivery pipe to suck saliva, further improving the collection rate. At the same time, the setting of the folding part can fix the connection between the insertion rod and the delivery pipe, preventing the two from disconnecting due to the stroking action of the extrusion wheel and ensuring the normal progress of the collection work. Each component collaborates to improve the collection efficiency and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the left-side perspective view of the present invention;

[0025] Figure 2 is the right-side perspective view of the present invention;

[0026] Figure 3 is the front cross-sectional view of the present invention;

[0027] Figure 4 is the cross-sectional perspective view of the chewing part of the present invention;

[0028] Figure 5 is the present invention Figure 3Cross-sectional view along A-A;

[0029] Figure 6 For the present invention Figure 5 Exploded perspective view along B-B in the present invention;

[0030] Figure 7 Top view exploded perspective view and partial enlarged view of the extension part of the present invention;

[0031] Figure 8 Top view exploded perspective view of the sliding frame of the present invention;

[0032] Figure 9 Bottom view exploded perspective view of the sliding frame of the present invention;

[0033] Figure 10 Structural schematic diagram of the removed collection part of the present invention;

[0034] Figure 11 Movement track state diagram of the extrusion wheel of the present invention.

[0035] In the figure: 1. Extension part; 2. Connection part; 3. Hand-held part; 4. Biting ball; 5. Insert rod; 6. Embedding sleeve; 7. Embedding groove; 8. Collection tube; 9. Hand-squeezing handle; 10. Gun head; 11. Folding part; 12. Sliding frame; 13. Tension spring; 14. Delivery pipe; 15. Rotating shaft; 16. First gear; 17. Second gear; 18. Reel; 19. Pulling rope; 20. Chute; 21. Diversion block; 22. Adjusting block; 23. Extrusion wheel; 24. Elastic pin; 25. Stimulating layer; 26. Flow channel; 27. Card slot. Specific implementation mode

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1 to 11 , the present invention provides a technical solution: a veterinary animal disease diagnosis auxiliary device, including a collection gun, the collection gun is composed of an extension part 1, a connection part 2 and a hand-held part 3, and further includes:

[0038] A biting part detachably installed at the end of the extension part 1, the biting part includes an integrally formed biting ball 4 and an insert rod 5, and the diameter of the biting ball 4 is at least half of the opening diameter of the target animal. The surface of the biting ball 4 is coated with a stimulating layer 25 that can stimulate saliva secretion, and a flow channel 26 extending to the surface of the biting ball 4 is opened inside the insert rod 5;

[0039] The collecting part, the collecting part includes a collecting tube 8 that can be embedded and installed in the connecting part 2 and a conveying tube 14 that communicates with the inside of the collecting tube 8. The inserting rod 5 can be inserted into the conveying tube 14 to communicate with the collecting tube 8;

[0040] The squeezing part, the squeezing part is used to intermittently squeeze the conveying tube 14 along the biting ball 4 towards the collecting tube 8, so that saliva can flow into the collecting tube 8.

[0041] When the device is in use, it is necessary to provide a quiet and comfortable collecting environment for the animal, reduce external interference and noise, and make it feel relaxed. Then, insert and fix the inserting rod 5 part of the biting part at the end position of the extending part 1. At the same time, the collecting tube 8 and the conveying tube 14 are also embedded in the extending part 1 and the connecting part 2, and the inserting rod 5 is inserted into the conveying tube 14. Assemble the collecting part and the biting part and install them on the collecting gun, as Figure 1 shown in the state;

[0042] After assembling the biting part, the animal can be made to lick and bite the biting ball 4 of the biting part by hand-held the holding part 3 in the way of feeding. On the one hand, the stimulation layer 25 on its surface is used to stimulate the salivary glands in the animal's oral cavity to secrete saliva for collection. On the other hand, the released fragrance is used to attract the animal to lick and bite. The stimulation layer 25 preferably selects substances that are harmless to animals and can effectively stimulate saliva secretion, such as appropriate liquid sprays or odors, and avoid using stimulants that will cause strong discomfort. For example, harmless and edible liquid sprays such as citric acid can be used to spray on the stimulation layer 25 to stimulate the animal's saliva secretion, but the concentration and spraying amount need to be controlled to avoid causing discomfort to the animal;

[0043] Secondly, since the biting ball 4 is made of hard material and its diameter is at least half of the animal's opening diameter (preferably two-thirds), taking a dog as an example according to the animal's habit, when an object is larger and harder, the animal will bite the biting ball 4 from the side during the biting process and use its molars (that is, the back molars) to chew. In this way, the biting ball 4 can extend into the animal's oral cavity to the greatest extent, so that its contact surface with the saliva secreted in the oral cavity is larger, which is beneficial to collecting enough saliva in a shorter time, avoiding the animal giving up biting due to being unable to bite for a long time, and also avoiding the interruption of the saliva collection process;

[0044] At the same time, during the process of the animal biting the biting ball 4, the adhered saliva will flow into the conveying tube 14 from the flow channel 26 on the surface of the biting ball 4, and under the action of the squeezing part intermittently squeezing the conveying tube 14 along the biting ball 4 towards the collecting tube 8, the saliva can flow into the collecting tube 8 to complete the collection work. Among them, since the squeezing method of the squeezing part is to squeeze from one side to the other side, the saliva collected in the conveying tube 14 can flow in a directional manner, so as to achieve the purpose of collection.

[0045] In this way, through this feeding-type non-invasive collection method, not only is the operation simple and non-invasive, but it can also reduce the stress response of animals, so as to truly reflect the physiological conditions of animals in a calm state, and the repeated test operation is convenient and efficient.

[0046] It is worth mentioning that both the biting part and the collection part are for one-time use, which avoids cross-infection of saliva and affects the test results, thus ensuring the accuracy of subsequent diagnostic test results. Moreover, biting balls 4 with different diameters can be designed to adapt to different animals.

[0047] In a further optional embodiment, an implementation manner of the extrusion part is provided;

[0048] The extrusion part includes a sliding frame 12 installed inside the extension part 1 and capable of reciprocating sliding. Two adjusting blocks 22 are slidably installed on the inner wall of the frame of the sliding frame 12, and two extrusion wheels 23 are rotatably installed on both adjusting blocks 22. An embedding groove 7 for embedding the delivery pipe 14 is opened at the top of the extension part 1, and a break groove for placing the delivery pipe 14 between the two extrusion wheels 23 is opened at the top of the sliding frame 12;

[0049] The extrusion part further includes two groups of symmetrically arranged sliding grooves 20 opened at the inner bottom of the extension part 1. Elastic pins 24 slidably installed in the two groups of sliding grooves 20 are respectively installed at the bottoms of the two adjusting blocks 22. The sliding groove 20 includes two horizontal grooves, and both ends of the two horizontal grooves are connected through inclined grooves, and diversion blocks 21 capable of enabling the elastic pins 24 to slide along the same direction path are arranged at the connecting parts of the two inclined grooves.

[0050] Specifically refer to Figures 7 - 9 , while the animal is biting, the sliding frame 12 reciprocates inside the extension part 1 driven by an external structure, and drives the elastic pins 24 at the bottoms of the adjusting blocks 22 to slide in the sliding grooves 20. Refer to Figure 7 , since the sliding groove 20 is composed of two horizontal grooves and two inclined grooves, and diversion blocks 21 are arranged at two diagonal positions of the inclined grooves, when the sliding frame 12 moves towards the direction close to the handheld part 3, the elastic pin 24 will slide into the horizontal groove close to the middle line of the extension part 1 under the action of the diversion block 21 at the connecting position of the inclined grooves, that is, the two adjusting blocks 22 on the sliding frame 12 approach each other until the two extrusion wheels 23 approach each other to clamp and extrude the delivery pipe 14, as shown in Figure 11 . Then, as the sliding frame 12 moves, the two extrusion wheels 23 also roll and extrude the delivery pipe 14, so as to move the already collected saliva in the delivery pipe 14 into the collection pipe 8;

[0051] When the sliding frame 12 moves to the end and starts to move back (i.e., the sliding frame 12 moves away from the handheld part 3), at this time, the elastic pin 24 slides to the diversion block 21 at the diagonal position of the inclined groove again, and under the action of the diversion block 21, it slides into the transverse groove far from the midline position of the extension part 1, that is, the two adjusting blocks 22 on the sliding frame 12 move away from each other, and the two pressing wheels 23 also disengage from the conveying pipe 14. Then the conveying pipe 14 resumes its original state under its own elastic force (the conveying pipe 14 can be made of a rubber hose), and the collection of saliva is restored.

[0052] In this way, through the reciprocating movement of the sliding frame 12, the conveying pipe 14 can be unidirectionally stroked by the pressing wheels 23, so as to play a role in collecting saliva.

[0053] And, it is worth mentioning that, referring to Figure 11 , after the pressing wheel 23 clamps the conveying pipe 14 and during the rolling extrusion process, while the conveying pipe 14 behind the pressing wheel 23 resumes its original state under its own elastic force, the restoration of its pipe will increase the space inside the conveying pipe 14, thereby generating a slight negative pressure inside it. In this way, as the pressing wheel 23 moves, in addition to pushing the saliva in front of it, it can also suck the saliva behind it through the self-restoration of the conveying pipe 14, further improving the saliva collection rate.

[0054] The specific shape of the diversion block 21 can be seen in the enlarged position in Figure 7 . Its two sides are respectively set as an inclined surface and a vertical surface. In this way, when the elastic pin 24 contacts the vertical surface of the diversion block 21, it can be diverted into another transverse groove under the blocking action of the vertical surface, and when it slides in the opposite direction and contacts the inclined surface, it can slide over the diversion block 21. In this way, the purpose that the two pressing wheels 23 clamp during the forward movement and loosen during the return movement of the sliding frame 12 can be achieved.

[0055] In a further optional embodiment, an implementation manner capable of driving the sliding frame 12 to reciprocate is provided.

[0056] Inside the connecting part 2, a second gear 17 and a wire reel 18 which are coaxially fixed are rotatably installed. A pulling rope 19 is wound around the outer wall of the wire reel 18, and one end of the pulling rope 19 is fixedly connected to the sliding frame 12. A tension spring 13 is connected between the side of the sliding frame 12 far from the pulling rope 19 and the inner wall of the extension part 1. A rotating shaft 15 is also rotatably installed on the inner wall of the connecting part 2. A first gear 16 meshing with the second gear 17 and a hand-held handle 9 extending outside the connecting part 2 are fixed on the outer wall of the rotating shaft 15, and the diameter of the first gear 16 is larger than that of the second gear 17.

[0057] Specifically, it can be seen in Figure 3 and Figure 6When the user performs the feeding operation by holding the handheld part 3, by intermittently squeezing the hand squeeze handle 9, the first gear 16 can be driven to rotate reciprocally continuously, so as to drive the wire reel 18 to rotate intermittently reciprocally under the meshing drive of the second gear 17, and further enable the pull rope 19 to continuously perform the process of taking in and paying out the wire, so as to pull the sliding frame 12 to slide;

[0058] Meanwhile, with the cooperation of the pulling force of the tension spring 13 on the sliding frame 12, the sliding frame 12 can be automatically reset after being pulled, so as to achieve the purpose of the reciprocating sliding of the sliding frame 12 in the above process.

[0059] In a further optional embodiment, an embedding sleeve 6 is fixedly embedded in the inner wall of the connecting part 2. A groove for embedding and fixing the collecting pipe 8 is formed at the top of the embedding sleeve 6, and a perforation is also formed at the end position of the embedding sleeve 6.

[0060] Specifically, refer to Figure 1 and Figure 2 . Through the embedding sleeve 6, it is convenient for the collecting pipe 8 to be embedded and fixed. In this way, the whole device can be completed by holding it with one hand, the operation is simple, and the other hand can be freed to comfort the animal so that it can cooperate with the sampling more.

[0061] In a further optional embodiment, there are also two folding parts 11 that are rotationally hinged. Semi-circular grooves are formed on the fitting surfaces of the two folding parts 11. When the circular hole formed by the two semi-circular grooves wraps around the conveying pipe 14, it is in interference fit with the conveying pipe 14. A gun head 10 is formed at the end of the extension part 1. A card slot 27 for the folding part 11 to be inserted into is formed at the top of the gun head 10, and the opening position of the card slot 27 is set to be flared.

[0062] Refer to Figure 10 . A way to facilitate fixing the chewing ball 4 is provided. First, in the assembly stage, first rotate and open the two folding parts 11. After inserting the insertion rod 5 into the conveying pipe 14, place the connection part of the two in the semi-circular grooves of the two folding parts 11. Then rotate and close the two folding parts 11 and embed them into the card slot 27. Use the function of the card slot 27 to keep the two folding parts 11 closed and rotating, and further improve the connection effect on the insertion rod 5 and the conveying pipe 14 through the interference fit method;

[0063] Secondly, as can be seen from the above, the one-way stroking of the squeezing wheel 23 is equivalent to continuously applying a force to the conveying pipe 14 away from the chewing ball 4. Therefore, through the pressing action of the folding part 11, the insertion rod 5 and the conveying pipe 14 will not be disconnected halfway, ensuring the normal progress of the collection work.

[0064] In a further optional embodiment, annular edge protrusions are provided on both the upper and lower sides of the squeezing wheel 23, and the protrusion height of the annular edge protrusions is the same as the inner wall thickness of the conveying pipe 14.

[0065] See Figures 8 - 9 , by designing a circular edge protrusion, it is possible to further prevent the conveying pipe 14 from shifting during the clamping and stroking processes, playing a certain limiting and guiding role.

[0066] In a further optional embodiment, the inner wall of the conveying pipe 14 is also filled with a liquid guide cotton core. On the one hand, by filling the liquid guide cotton core, its adsorption effect can be used to further improve the adsorption rate of saliva, thereby improving the collection rate. On the other hand, the cotton core can also filter impurities in the saliva, so that the collected saliva sample can be cleaner, providing convenience for the subsequent detection process. At the same time, the liquid guide cotton core can further assist the reset deformation of the conveying pipe 14.

[0067] In a further optional embodiment, the inlet of the flow channel 26 opened on the outer wall of the biting ball 4 is located on the hemispherical surface of the biting ball 4 facing the insertion rod 5.

[0068] See Figure 4 , when an animal chews with its molars, the outer curved surface of the biting ball 4 will be in direct contact with the oral mucosa of the animal, so that the secreted saliva can flow into the flow channel 26 immediately, further improving the collection rate.

[0069] In a further optional embodiment, the two ends of the conveying pipe 14 are respectively set as hard thickened sections, and the middle is set as a soft section.

[0070] In a further optional embodiment, a hand protection part that wraps the hand squeezing handle 9 is also formed between the extension part 1 and the hand-held part 3.

[0071] The standard parts used in this embodiment can be directly purchased from the market. For the non-standard structural components described in the specification and drawings, they can also be directly processed according to the existing technical knowledge without any doubt. At the same time, the connection methods of each component adopt the mature conventional means in the existing technology, and the machines, parts and equipment all adopt the conventional models in the existing technology, so no specific description will be made here.

[0072] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A veterinary animal disease diagnosis assistance device, comprising a collection gun, the collection gun consisting of an extension part (1), a connection part (2) and a handheld part (3), characterized in that, It further includes: A biting part detachably installed at the end of the extension part (1). The biting part includes an integrally formed biting ball (4) and a plug rod (5). The diameter of the biting ball (4) is at least half of the opening diameter of the target animal. The surface of the biting ball (4) is coated with a stimulating layer (25) that can stimulate saliva secretion, and a flow channel (26) extending to the surface of the biting ball (4) is provided inside the plug rod (5); A collecting part. The collecting part includes a collecting tube (8) that can be embedded and installed in the connecting part (2) and a conveying tube (14) communicated with the inside of the collecting tube (8). The plug rod (5) can be inserted into the conveying tube (14) to communicate with the collecting tube (8); An extrusion part for intermittently extruding the conveying tube (14) along the direction from the biting ball (4) to the collecting tube (8) so that saliva can flow into the collecting tube (8).

2. The veterinary animal disease diagnosis assistance device according to claim 1, characterized in that: The extrusion part includes a sliding frame (12) installed inside the extension part (1) and capable of reciprocating sliding. Two adjusting blocks (22) are slidably installed on the inner wall of the frame of the sliding frame (12), and extrusion wheels (23) are rotatably installed on both of the two adjusting blocks (22). An embedding groove (7) for the conveying tube (14) to be embedded is provided at the top of the extension part (1), and a break groove for the conveying tube (14) to be placed between the two extrusion wheels (23) is provided at the top of the sliding frame (12); The extrusion part further includes two groups of symmetrically arranged sliding grooves (20) opened at the inner bottom of the extension part (1). Elastic pins (24) respectively slidably installed in the two groups of sliding grooves (20) are installed at the bottoms of the two adjusting blocks (22). Each of the sliding grooves (20) includes two horizontal grooves, and both ends of the two horizontal grooves are communicated through inclined grooves. A diversion block (21) that can make the elastic pin (24) slide along the same direction path is provided at the communicating part of the two inclined grooves.

3. The veterinary animal disease diagnosis assistance device according to claim 2, characterized in that: A second gear (17) and a wire reel (18) that are coaxially fixed are rotatably installed inside the connecting part (2). A pulling rope (19) is wound around the outer wall of the wire reel (18). One end of the pulling rope (19) is fixedly connected to the sliding frame (12). A tension spring (13) is connected between the side of the sliding frame (12) away from the pulling rope (19) and the inner wall of the extension part (1). A rotating shaft (15) is also rotatably installed on the inner wall of the connecting part (2). A first gear (16) meshing with the second gear (17) and a hand-squeezing handle (9) extending outside the connecting part (2) are fixed to the outer wall of the rotating shaft (15), and the diameter of the first gear (16) is larger than that of the second gear (17).

4. The veterinary animal disease diagnosis assistance device according to claim 1, wherein: An embedding sleeve (6) is embedded and fixed on the inner wall of the connecting part (2). A groove for the collecting tube (8) to be embedded and fixed is provided at the top of the embedding sleeve (6), and a perforation is also provided at the end position of the embedding sleeve (6).

5. The veterinary animal disease diagnosis assistance device according to claim 1, characterized in that: It further includes two rotatably hinged folding parts (11). Semi-circular grooves are formed on the mating surfaces of the two folding parts (11). When the circular hole formed by the two semi-circular grooves wraps around the delivery pipe (14), it is in interference fit with the delivery pipe. A gun head (10) is also formed at the end of the extension part (1). A card slot (27) into which the folding part (11) can be inserted is formed at the top of the gun head (10), and the opening position of the card slot (27) is flared.

6. The veterinary animal disease diagnosis assistance device according to claim 2, wherein: Circular edge protrusions are provided on both the upper and lower sides of the pressing wheel (23), and the protrusion height of the circular edge protrusions is the same as the inner wall thickness of the delivery pipe (14).

7. The veterinary animal disease diagnosis assistance device according to any one of claims 1-6, characterized in that: The inner wall of the delivery pipe (14) is also filled with a liquid guide cotton core.

8. The veterinary animal disease diagnosis assistance device according to claim 1, characterized in that: The inlet of the flow channel (26) formed on the outer wall of the biting ball (4) is located on the hemispherical surface of the biting ball (4) facing the insertion rod (5).

9. The veterinary animal disease diagnosis assistance device according to any one of claims 1-6, characterized in that: Both ends of the delivery pipe (14) are respectively provided with hard thickened sections, and the middle is provided with a soft section.

10. The veterinary animal disease diagnosis assistance device according to claim 1, characterized in that: A hand guard that wraps the hand squeeze handle (9) is also formed between the extension part (1) and the hand-held part (3).

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