Auxiliary inoculation device for animal husbandry and veterinary medicine

Abstract

The invention discloses an inoculation auxiliary device for animal husbandry veterinarians, and relates to the technical field of veterinary instruments, the inoculation auxiliary device comprises a handle, the top of the handle is fixedly provided with a rack, the surface of the rack is fixedly provided with a connecting frame, the top of the rack is fixedly provided with a connecting frame, and the inner wall of a sliding frame is fixedly provided with a sliding rod; the surface of the sliding rod is sleeved with a reset spring, a sliding block is slidably installed on the circumferential face of the sliding rod, an injector is arranged at the top of the sliding block, a sliding block is slidably installed on the surface of the sliding block, the sliding block is slidably installed on the inner wall of the sliding frame, and a trigger is slidably installed on the inner wall of the rack. The L-shaped plate moves in the direction away from the connecting frame to make contact with the inclined face of the sliding plate, the sliding plate is pushed by the L-shaped plate to move downwards, the sliding plate moves downwards to drive the trapezoidal block to move downwards to relieve limiting on the sliding block, the injector moves towards livestock fur under the elastic force of the reset spring, operation is fast, and practicability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of veterinary instruments, and particularly to an auxiliary device for vaccination in animal husbandry and veterinary medicine. Background Technique

[0002] Vaccination is a key means to prevent animals from being infected with viruses. It enables the immune system of livestock to recognize foreign substances, screen and produce antibodies, so as to generate antibodies against the pathogen or similar pathogens, and then enable the vaccinated livestock to have a stronger resistance to the disease.

[0003] The patent with the patent announcement number CN117530800B relates to an auxiliary device for vaccination in animal husbandry and veterinary medicine, including: a handle, a driving device and an injection device; the handle includes a trigger, a gearbox, a transmission device and a locking device, a trigger groove and a first sliding groove are arranged on the handle, the driving device includes a frame, a first slider, a tension spring, a connecting piece, a first compression spring, a second rack, a second slider and a second compression spring, the injection device is fixedly installed on the second slider. After the user aligns the injection position, holds the handle tightly and pushes the trigger, the front end of the injection device can be stabbed into the fur of livestock. It is not only fast and convenient, but also does not require other power sources to drive, which is convenient to use. At the same time, through the cooperation of the transmission device and the driving device, the injection device can be quickly pushed out, inserted into the fur of livestock, and locked under the action of the locking device, which is convenient for injecting the liquid medicine.

[0004] In the above patent, through the cooperation of the transmission device and the driving device, the injection device can be quickly pushed out, inserted into the fur of livestock, and locked under the action of the locking device, which is convenient for injecting the liquid medicine. However, loosening the trigger during the injection process may interrupt the injection process, resulting in the drug not being completely injected into the animal's body, which will affect the vaccination effect and cannot provide sufficient immune protection. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an auxiliary device for vaccination in animal husbandry and veterinary medicine, which solves the problems raised in the above background technique.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: An auxiliary device for vaccination in veterinary medicine for livestock, comprising: a handle, a frame is fixedly installed at the top of the handle, a connecting frame is fixedly installed on the surface of the frame, a connecting frame is fixedly installed at the top of the frame, a sliding rod is fixedly installed on the inner wall of the sliding frame, a return spring is sleeved on the surface of the sliding rod, a sliding block is slidably installed on the circumferential surface of the sliding rod, a syringe is arranged at the top of the sliding block, a slider is slidably installed on the surface of the sliding block, the slider is slidably installed on the inner wall of the sliding frame, a trigger is slidably installed on the inner wall of the frame, an L-shaped plate is fixedly installed at the top of the trigger, a sliding plate is slidably installed on the inner wall of the sliding frame, a groove is formed on the surface of the sliding plate, a trapezoidal block is fixedly installed at the top of the sliding plate, a chute is formed on the surface of the trigger, when the L-shaped plate moves away from the connecting frame, it will contact the inclined surface of the sliding plate, and the sliding plate is pushed downward by the L-shaped plate, and the downward movement of the sliding plate will drive the trapezoidal block to move downward to release the limit on the slider.

[0007] According to the above technical solution, a first spring is arranged between the frame and the trigger, and the trigger is driven to reset by the first spring. A second spring is arranged between the sliding frame and the sliding plate, and the sliding plate is driven to reset by the second spring.

[0008] According to the above technical solution, a limiting device for limiting the trigger is arranged on the frame, and a supporting device for assisting injection is arranged on the connecting frame. The limiting device includes a limiting plate, an L-shaped sliding plate, a connecting rod and a sliding push plate. Pressing the trigger to move away from the connecting frame drives the limiting plate to move away from the connecting frame, and the movement of the limiting plate away from the connecting frame will push the L-shaped sliding plate to move upward. The limiting plate is fixedly installed on the surface of the trigger, the L-shaped sliding plate is slidably installed on the inner wall of the frame, the connecting rod is fixedly installed on the surface of the L-shaped sliding plate, and the sliding push plate is fixedly installed on the surface of the connecting rod.

[0009] According to the above technical solution, an L-shaped long plate is fixedly installed on the surface of the trigger, a square groove is formed on the surface of the sliding frame, a trapezoidal slider is slidably installed on the inner wall of the square groove, an elastic telescopic block is fixedly installed at the top of the trapezoidal slider, and a triangular block is fixedly installed at the top of the elastic telescopic block. The slider will squeeze the triangular block and the elastic telescopic block to move downward. When the slider is separated from the triangular block, the elastic force of the elastic telescopic block itself will drive the triangular block to reset, and the slider is limited by the reset of the triangular block.

[0010] According to the above technical solution, a third spring is arranged between the L-shaped sliding plate and the frame, and the L-shaped sliding plate is driven to reset by the third spring. A fourth spring is arranged between the square groove and the trapezoidal slider, and the trapezoidal slider is driven to reset by the fourth spring.

[0011] According to the above technical solution, the support device includes a long rod, a trapezoidal connecting plate, a sliding connecting plate, an arc-shaped frame, a fixing plate and a pressing plate. The movement of the L-shaped long plate towards the frame drives the long rod and the trapezoidal connecting plate to move towards the frame. The movement of the trapezoidal connecting plate towards the frame will push the pressing plate upwards. The long rod is fixedly installed on the surface of the L-shaped long plate. The trapezoidal connecting plate is fixedly installed at one end of the long rod away from the L-shaped long plate. The sliding connecting plate is slidably installed at the bottom of the sliding frame. The arc-shaped frame is fixedly installed at one end of the sliding connecting plate away from the trigger. The fixing plate is fixedly installed at the bottom of the sliding frame. The pressing plate is slidably installed on the inner wall of the fixing plate.

[0012] According to the above technical solution, a sliding long plate is slidably installed on the inner wall of the sliding connecting plate. A triangular plate is slidably installed on the inner wall of the sliding connecting plate. A short plate is fixedly installed on one side of the triangular plate away from the sliding long plate. An arc-shaped plate is fixedly installed on one side of the short plate away from the triangular plate. The upward movement of the pressing plate will drive the sliding long plate to move upwards. The upward movement of the sliding long plate will push the triangular plate, the short plate and the arc-shaped plate to move away from the sliding long plate.

[0013] According to the above technical solution, a fifth spring is provided between the sliding connecting plate and the sliding frame, and the fifth spring drives the sliding connecting plate to reset. A sixth spring is provided between the fixing plate and the pressing plate, and the sixth spring drives the pressing plate to reset. A seventh spring is provided between the sliding connecting plate and the sliding long plate, and the seventh spring drives the sliding long plate to reset. An eighth spring is provided between the sliding connecting plate and the triangular plate, and the eighth spring drives the triangular plate to reset.

[0014] The present invention provides an auxiliary device for vaccination in veterinary medicine for livestock. It has the following beneficial effects: (1) In this invention, by pulling the syringe, the movement of the syringe towards the frame will drive the sliding block to move towards the frame. The movement of the sliding block towards the frame will compress the return spring, which is convenient for injection. At the same time, the movement of the L-shaped plate away from the connecting frame will contact the inclined surface of the sliding plate. The L-shaped plate pushes the sliding plate downwards. The downward movement of the sliding plate will drive the trapezoidal block to move downwards to release the limit on the slider, so that the syringe moves towards the livestock fur under the elastic force of the return spring, with fast operation and high practicability.

[0015] (2)In this invention, when the L-shaped slide plate disengages from the limit plate, the third spring will drive the L-shaped slide plate to reset. The reset of the L-shaped slide plate will limit the limit plate, preventing the injection process from being interrupted by loosening the trigger during injection, and the drug not being completely injected into the animal's body, which will affect the inoculation effect and fail to provide sufficient immune protection. When it is necessary to release the limit, manually push the sliding push plate upward. The upward movement of the sliding push plate will drive the connecting rod and the L-shaped slide plate upward, and the limit on the limit plate will be released by the upward movement of the L-shaped slide plate. When the slider disengages from the triangular block, the elastic telescopic block's own elastic force will drive the triangular block to reset, and the slider will be limited by the reset of the triangular block, preventing the syringe from shrinking towards the direction of the frame during injection, resulting in the syringe not being fully injected and affecting the injection effect.

[0016] (3)In this invention, when the trapezoidal connecting plate moves towards the direction of the frame, it will push the extrusion plate upward. The upward movement of the extrusion plate will limit the sliding connecting plate, preventing the sliding connecting plate from driving the arc-shaped frame to quickly reset when released, resulting in the needle tip being damaged during movement and affecting the injection effect. At the same time, the upward movement of the extrusion plate will drive the sliding long plate upward, and the upward movement of the sliding long plate will push the triangular plate, the short plate and the arc-shaped plate to move away from the sliding long plate. The contact between the arc-shaped plate and the livestock will increase the friction force, preventing sliding during the process of fitting the livestock and affecting the injection effect. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the cross-sectional structure of the frame of the present invention; Figure 3 is a schematic diagram of the structure of the limit device of the present invention; Figure 4 is a schematic diagram of the cross-sectional structure of the connecting frame of the present invention; Figure 5 is a schematic diagram of the structure of the sliding block and the slider of the present invention; Figure 6 is the present invention Figure 5 is an enlarged schematic diagram of the structure of part A in the present invention; Figure 7 is a schematic diagram of the cross-sectional structure of the sliding connecting plate of the present invention.

[0018] In the figure: 1. Handle; 2. Frame; 21. Connecting frame; 3. Sliding frame; 4. Syringe; 5. Sliding block; 6. Slide; 7. Slide bar; 8. Return spring; 9. Trigger; 10. L-shaped plate; 11. Sliding plate; 12. Trapezoidal block; 13. Chute; 141. Limiting plate; 142. L-shaped sliding plate; 143. Connecting rod; 144. Sliding push plate; 145. L-shaped long plate; 146. Trapezoidal slide block; 147. Elastic telescopic block; 148. Triangular block; 151. Long rod; 152. Trapezoidal connecting plate; 153. Sliding connecting plate; 154. Arc-shaped frame; 155. Fixed plate; 156. Extrusion plate; 157. Sliding long plate; 158. Triangular plate; 159. Short plate; 1510. Arc-shaped plate. Detailed implementation mode

[0019] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 5 , an embodiment of the present invention is: an auxiliary device for veterinary inoculation in animal husbandry, including: a handle 1, a frame 2 is fixedly installed on the top of the handle 1, a connecting frame 21 is fixedly installed on the surface of the frame 2, a connecting frame 21 is fixedly installed on the top of the frame 2, a slide bar 7 is fixedly installed on the inner wall of the sliding frame 3, a return spring 8 is sleeved on the surface of the slide bar 7, a sliding block 5 is slidably installed on the circumferential surface of the slide bar 7, a syringe 4 is arranged on the top of the sliding block 5, a slide 6 is slidably installed on the surface of the sliding block 5, the slide 6 is slidably installed on the inner wall of the sliding frame 3, a trigger 9 is slidably installed on the inner wall of the frame 2, an L-shaped plate 10 is fixedly installed on the top of the trigger 9, a sliding plate 11 is slidably installed on the inner wall of the sliding frame 3, a groove is formed on the surface of the sliding plate 11, a trapezoidal block 12 is fixedly installed on the top of the sliding plate 11, a chute 13 is formed on the surface of the trigger 9, so that the syringe 4 moves towards the livestock fur under the elastic force of the return spring 8, with quick operation and high practicability.

[0021] A first spring is arranged between the frame 2 and the trigger 9 to drive the trigger 9 to reset through the first spring. A second spring is arranged between the sliding frame 3 and the sliding plate 11 to drive the sliding plate 11 to reset through the second spring.

[0022] During the operation of this embodiment: By pulling the syringe 4, the movement of the syringe 4 towards the frame 2 will drive the sliding block 5 to move towards the frame 2. The movement of the sliding block 5 towards the frame 2 will compress the return spring 8, putting the return spring 8 in a state of storing energy. At the same time, the movement of the sliding block 5 towards the frame 2 will drive the slider 6 to move towards the frame 2. The movement of the slider 6 towards the frame 2 will contact the trapezoidal block 12, and the slider 6 will push the trapezoidal block 12 downward. The downward movement of the trapezoidal block 12 will drive the sliding plate 11 downward. When the slider 6 separates from the trapezoidal block 12, the second spring will drive the sliding plate 11 and the trapezoidal block 12 to reset to limit the slider 6. When the syringe 4 needs to be used, align the syringe 4 with the injection area and move the trigger 9 away from the connecting frame 21 by pressing it. The movement of the trigger 9 away from the connecting frame 21 will drive the L-shaped plate 10 to move away from the connecting frame 21. The movement of the L-shaped plate 10 away from the connecting frame 21 will contact the inclined surface of the sliding plate 11, and the sliding plate 11 will be pushed downward by the L-shaped plate 10. The downward movement of the sliding plate 11 will drive the trapezoidal block 12 downward to release the limit on the slider 6, enabling the syringe 4 to move towards the livestock fur under the elastic force of the return spring 8. The operation is fast and the practicability is high.

[0023] Please refer to Figures 1 - 7 , on the basis of the above embodiment, in another embodiment of the present invention, a limiting device for limiting the trigger 9 is provided on the frame 2, and a supporting device for assisting injection is provided on the connecting frame 21. The limiting device includes a limiting plate 141, an L-shaped sliding plate 142, a connecting rod 143, and a sliding push plate 144. The limiting plate 141 is fixedly installed on the surface of the trigger 9, the L-shaped sliding plate 142 is slidably installed on the inner wall of the frame 2, the connecting rod 143 is fixedly installed on the surface of the L-shaped sliding plate 142, and the sliding push plate 144 is fixedly installed on the surface of the connecting rod 143, preventing the injection process from being interrupted by loosening the trigger 9 during the injection process, and the drug not being completely injected into the animal body, which will affect the inoculation effect and cannot provide sufficient immune protection.

[0024] An L-shaped long plate 145 is fixedly installed on the surface of the trigger 9. A square groove is provided on the surface of the sliding frame 3, and a trapezoidal slider 146 is slidably installed on the inner wall of the square groove. An elastic telescopic block 147 is fixedly installed on the top of the trapezoidal slider 146, and a triangular block 148 is fixedly installed on the top of the elastic telescopic block 147, preventing the syringe 4 from contracting towards the frame 2 during injection, resulting in the syringe 4 not being completely injected and affecting the injection effect.

[0025] A third spring is provided between the L-shaped sliding plate 142 and the frame 2 to drive the L-shaped sliding plate 142 to reset by the third spring. A fourth spring is provided between the square groove and the trapezoidal slider 146 to drive the trapezoidal slider 146 to reset by the fourth spring.

[0026] The support device includes a long rod 151, a trapezoidal connecting plate 152, a sliding connecting plate 153, an arc-shaped frame 154, a fixing plate 155 and a pressing plate 156. The long rod 151 is fixedly installed on the surface of the L-shaped long plate 145. The trapezoidal connecting plate 152 is fixedly installed at one end of the long rod 151 away from the L-shaped long plate 145. The sliding connecting plate 153 is slidably installed at the bottom of the sliding frame 3. The arc-shaped frame 154 is fixedly installed at one end of the sliding connecting plate 153 away from the trigger 9. The fixing plate 155 is fixedly installed at the bottom of the sliding frame 3. The pressing plate 156 is slidably installed on the inner wall of the fixing plate 155 to prevent the sliding connecting plate 153 from driving the arc-shaped frame 154 to quickly reset when released, resulting in the needle being completely displaced during movement and affecting the injection effect.

[0027] A sliding long plate 157 is slidably installed on the inner wall of the sliding connecting plate 153, and a triangular plate 158 is slidably installed on the inner wall of the sliding connecting plate 153. A short plate 159 is fixedly installed on one side of the triangular plate 158 away from the sliding long plate 157, and an arc-shaped plate 1510 is fixedly installed on one side of the short plate 159 away from the triangular plate 158. Contact with livestock through the arc-shaped plate 1510 increases the friction force to prevent sliding during the process of fitting the livestock and affecting the injection effect.

[0028] A fifth spring is provided between the sliding connecting plate 153 and the sliding frame 3 to drive the sliding connecting plate 153 to reset through the fifth spring. A sixth spring is provided between the fixing plate 155 and the pressing plate 156 to drive the pressing plate 156 to reset through the sixth spring. A seventh spring is provided between the sliding connecting plate 153 and the sliding long plate 157 to drive the sliding long plate 157 to reset through the seventh spring. An eighth spring is provided between the sliding connecting plate 153 and the triangular plate 158 to drive the triangular plate 158 to reset through the eighth spring.

[0029] During the operation of this embodiment: Pressing the trigger 9 to move away from the connecting frame 21 drives the limiting plate 141 to move away from the connecting frame 21. The movement of the limiting plate 141 away from the connecting frame 21 will push the L-shaped sliding plate 142 upward. When the L-shaped sliding plate 142 is separated from the limiting plate 141, the third spring will drive the L-shaped sliding plate 142 to reset. The reset of the L-shaped sliding plate 142 will limit the limiting plate 141, preventing the interruption of the injection process caused by releasing the trigger 9 during the injection process, and the drug cannot be completely injected into the animal body, which will affect the inoculation effect and cannot provide sufficient immune protection. When it is necessary to release the limit, manually push the sliding push plate 144 upward. The upward movement of the sliding push plate 144 will drive the connecting rod 143 and the L-shaped sliding plate 142 upward. The upward movement of the L-shaped sliding plate 142 releases the limit on the limiting plate 141. At the same time, the movement of the trigger 9 away from the connecting frame 21 will drive the L-shaped long plate 145 to move away from the connecting frame 21. The movement of the L-shaped long plate 145 away from the connecting frame 21 will push the trapezoidal slider 146 upward. The upward movement of the trapezoidal slider 146 will drive the elastic telescopic block 147 and the triangular block 148 upward. When the syringe 4 ejects, it will drive the sliding block 5 and the slider 6 to move away from the frame 2. The movement of the slider 6 away from the frame 2 will contact the triangular block 148. The slider 6 will squeeze the triangular block 148 and the elastic telescopic block 147 downward. When the slider 6 is separated from the triangular block 148, the self-elastic force of the elastic telescopic block 147 will drive the triangular block 148 to reset. The reset of the triangular block 148 limits the slider 6, preventing the syringe 4 from contracting towards the frame 2 during injection, resulting in incomplete injection of the syringe 4 and affecting the injection effect.

[0030] By holding the connecting frame 21 and moving it towards the livestock, the arc-shaped frame 154 is brought into contact with the livestock. Through the arc-shaped frame 154, it can be ensured that there is no deviation during injection. At the same time, the movement of the L-shaped long plate 145 towards the frame 2 drives the long rod 151 and the trapezoidal connecting plate 152 towards the frame 2. The movement of the trapezoidal connecting plate 152 towards the frame 2 will push the pressing plate 156 upward. The upward movement of the pressing plate 156 will limit the sliding connecting plate 153, preventing the sliding connecting plate 153 from driving the arc-shaped frame 154 to quickly reset when released, resulting in the occurrence of complete movement of the needle during the movement and affecting the injection effect. At the same time, the upward movement of the pressing plate 156 will drive the sliding long plate 157 upward. The upward movement of the sliding long plate 157 will push the triangular plate 158, the short plate 159, and the arc-shaped plate 1510 away from the sliding long plate 157. The contact between the arc-shaped plate 1510 and the livestock increases the friction force, preventing sliding during the process of fitting with the livestock and affecting the injection effect.

[0031] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for vaccination in veterinary medicine for livestock and poultry, characterized in that, Including: A handle, on the top of which a frame is fixedly installed. On the surface of the frame, a connecting frame is fixedly installed. On the top of the frame, a connecting frame is also fixedly installed. Inside the sliding frame, a sliding rod is fixedly installed. A reset spring is sleeved on the surface of the sliding rod. A sliding block is slidably installed on the circumferential surface of the sliding rod. On the top of the sliding block, a syringe is provided. A slider is slidably installed on the surface of the sliding block, and the slider is slidably installed inside the sliding frame. Inside the frame, a trigger is slidably installed. On the top of the trigger, an L-shaped plate is fixedly installed. Inside the sliding frame, a sliding plate is slidably installed. A groove is formed on the surface of the sliding plate. On the top of the sliding plate, a trapezoidal block is fixedly installed. A chute is formed on the surface of the trigger. A limiting device for limiting the trigger is arranged on the frame, and a supporting device for assisting injection is arranged on the connecting frame.

2. The auxiliary device for inoculation in veterinary medicine for livestock according to claim 1, characterized in that: A first spring is arranged between the frame and the trigger, and a second spring is arranged between the sliding frame and the sliding plate.

3. The auxiliary device for inoculation for veterinary use in animal husbandry according to claim 2, characterized in that: The limiting device includes a limiting plate, an L-shaped sliding plate, a connecting rod and a sliding push plate. The limiting plate is fixedly installed on the surface of the trigger. The L-shaped sliding plate is slidably installed inside the frame. The connecting rod is fixedly installed on the surface of the L-shaped sliding plate. The sliding push plate is fixedly installed on the surface of the connecting rod.

4. An auxiliary device for vaccination in veterinary medicine for livestock, according to claim 3, characterized in that: An L-shaped long plate is fixedly installed on the surface of the trigger, a square groove is formed on the surface of the sliding frame, a trapezoidal slider is slidably installed inside the square groove, an elastic telescopic block is fixedly installed on the top of the trapezoidal slider, and a triangular block is fixedly installed on the top of the elastic telescopic block.

5. An auxiliary device for inoculation in veterinary medicine for livestock, characterized in that: A third spring is arranged between the L-shaped sliding plate and the frame, and a fourth spring is arranged between the square groove and the trapezoidal slider.

6. The auxiliary device for inoculation for veterinary use in animal husbandry according to claim 5, characterized in that: The supporting device includes a long rod, a trapezoidal connecting plate, a sliding connecting plate, an arc-shaped frame, a fixing plate and a pressing plate. The long rod is fixedly installed on the surface of the L-shaped long plate. The trapezoidal connecting plate is fixedly installed at one end of the long rod away from the L-shaped long plate. The sliding connecting plate is slidably installed at the bottom of the sliding frame. The arc-shaped frame is fixedly installed at one end of the sliding connecting plate away from the trigger. The fixing plate is fixedly installed at the bottom of the sliding frame. The pressing plate is slidably installed inside the fixing plate.

7. An auxiliary device for vaccination in veterinary medicine for livestock, characterized in that: A sliding long plate is slidably installed inside the sliding connecting plate, a triangular plate is slidably installed inside the sliding connecting plate. On the side of the triangular plate away from the sliding long plate, a short plate is fixedly installed. On the side of the short plate away from the triangular plate, an arc-shaped plate is fixedly installed.

8. An auxiliary device for inoculation in veterinary medicine for livestock, characterized in that: A fifth spring is arranged between the sliding connecting plate and the sliding frame, a sixth spring is arranged between the fixing plate and the pressing plate, a seventh spring is arranged between the sliding connecting plate and the sliding long plate, and an eighth spring is arranged between the sliding connecting plate and the triangular plate.

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