Adjustable pet carrier fixing structure for cars

By designing an adjustable pet carrier fixing structure, the problem of existing technologies being unable to accommodate pet carriers of different sizes is solved, thereby improving the stability and safety of pets in the vehicle, reducing the risk of emergency braking or collisions, and enhancing driving safety and comfort.

CN224447647UActive Publication Date: 2026-07-03IBBI PTY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
IBBI PTY CO LTD
Filing Date
2025-07-15
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing pet carrier securing methods cannot effectively accommodate pet carriers of different sizes, resulting in insufficient safety, poor stability, and low installation flexibility, and may also affect driving safety and pet comfort.

Method used

An adjustable pet carrier fixing structure for vehicles has been designed, including a base, side frame, mounting rod, positioning rod and adjustment components. By cooperating with the adjustment components and retaining ring, the fixing range can be flexibly adjusted to ensure the stability and safety of the pet carrier in the vehicle.

Benefits of technology

It improves the stability and safety of pets in the car, reduces the risk of injury due to emergency braking or collisions, reduces the possibility of pets interfering with driving, enhances driving concentration, and reduces the cleaning burden.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides an adjustable pet carrier fixing structure for vehicles, comprising: a base having two side frames and connecting rods, the two ends of which are respectively connected to the bottom of each side frame; two mounting rods, the two ends of which are respectively connected to the top of each side frame and are spaced apart, forming a storage space between each mounting rod and each side frame; a positioning rod, the two ends of which are respectively connected to each mounting rod and have a plurality of positioning holes; an adjustment component sleeved on the positioning rod, which is partially movably engaged with any of the positioning holes; and a retaining ring sleeved on both ends of the adjustment component; wherein, by fixing the base to the seat, placing the pet carrier in the storage space, and then raising the retaining ring, the size of the storage space can be changed by operating the adjustment component, so as to use it according to the size of the pet carrier.
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Description

Technical Field

[0001] This utility model relates to an adjustable pet carrier fixing structure for vehicles, specifically a vehicle accessory that can be adjusted and supported according to the size of the pet carrier, thereby improving passenger safety. Background Technology

[0002] In modern families, pets have gradually become indispensable members, and many owners are accustomed to taking their pets on trips. However, when pets are in a car, if they are simply placed on the seat or allowed to move freely, they are not only prone to moving and jumping inside the car, but may also fall and get injured due to sudden braking or collisions, and may even affect driving operation and driving safety. Although some owners have used pet carriers or leashes to prevent the above situations from happening, these practices still have many problems.

[0003] Existing methods of using pet carriers, pet slings, or leashes can prevent pets from moving to some extent. However, pet carriers are mostly secured by seat belts in cars, lacking structural support and unable to effectively absorb impact forces, making them prone to tipping over during violent shaking. As for pet slings, they are generally secured by the vehicle's seat belts, but seat belts do not provide stable fixation for every size pet sling, offering only minimal protection. Restricting pets with leashes carries the risk of strangling the pet or causing it to accidentally fall off if the leash is not properly secured. Using leashes or pet carriers alone cannot effectively improve the situation where pets may move in the car, and their safety is also questionable.

[0004] In addition, the rear seat cushions of most commercially available vehicles generally have a certain degree of tilt angle. If not specially adjusted, the seat products installed on them are prone to tilting forward, which will affect the stability and comfort during use. It may also cause the pet carrier placed on it to slide or tip over, increasing the risk of riding.

[0005] In view of this, the designer has devoted a lot of time to researching relevant knowledge, conducting research and development on related products, and going through many experiments and tests, and finally launched an adjustable pet carrier fixing structure for cars. In addition to its stable structure and easy installation, it can also be used with a variety of pet carriers to provide pets with a safe and comfortable riding space, effectively reducing potential accident risks and improving overall driving safety. Utility Model Content

[0006] The main purpose of this utility model is to provide an adjustable pet carrier fixing structure for vehicles, which can flexibly adjust the fixing range according to the size of different pet carriers, thereby improving the stability and safety of pets when riding in vehicles. It avoids the problem that conventional pet car accessories cannot be adjusted according to the size of the pet carrier, and also improves the shortcomings of existing accessories with low support and low installation and use flexibility.

[0007] To achieve the aforementioned objectives and address the deficiencies in existing knowledge, this utility model provides an adjustable pet carrier fixing structure for vehicles, characterized by comprising:

[0008] A base having two side frames and a connecting rod, the two ends of which are respectively connected to the bottom of the two side frames;

[0009] Two mounting rods are connected at both ends to the top of the two side frames respectively, and the two mounting rods are spaced apart, forming a storage space between the two mounting rods and the two side frames;

[0010] A positioning rod, the two ends of which are respectively connected to the two mounting rods, and the positioning rod has a plurality of positioning holes;

[0011] An adjustment component is sleeved on the positioning rod, and a portion of the adjustment component is movably engaged with any positioning hole; a retaining ring is also provided, which is sleeved on both ends of the adjustment component and can be flipped relative to the positioning rod.

[0012] The size of the storage space can be changed by fixing the base to the seat, placing a pet carrier in the storage space, and then raising the retaining ring. The size of the storage space can be changed by operating the adjustment component to move the retaining ring closer to or further away from any mounting rod.

[0013] The adjustable pet carrier fixing structure for vehicles includes an adjustment component comprising a sleeve, an operating member, a first spring, and a positioning member. The sleeve is fitted onto the positioning rod and has a mounting groove. The operating member is disposed in the mounting groove. The two ends of the first spring abut against one end of the operating member and the mounting groove, respectively. The positioning member is connected to the other end of the operating member and passes through the sleeve, and can be engaged or disengaged from any positioning hole. When the operating member is pressed, the first spring is pressed towards the bottom surface of the mounting groove, causing the positioning member to disengage from the positioning hole. When the external force is removed, the first spring elastically resets in the opposite direction to the bottom surface of the mounting groove, and the positioning member re-engages in any positioning hole, returning to a fixed state.

[0014] The adjustable pet carrier fixing structure for vehicles includes an adjustment component comprising a kit, a pull pin, and a second spring. The kit is fitted onto the positioning rod. One end of the pull pin passes through the kit and is movably engaged with or disengaged from any positioning hole. The second spring is located inside the kit and fitted onto the pull pin. Both ends of the second spring abut against the inner wall of the kit and the pull pin, respectively. When a pulling force is applied to the pull pin, the second spring presses in the opposite direction to the positioning rod, causing the pull pin to disengage from the positioning hole. When the pulling force is lost, the second spring elastically returns to its original position towards the positioning rod, and the pull pin re-engages with any positioning hole, returning to a fixed state.

[0015] The adjustable pet carrier fixing structure for vehicles includes an adjustment component with a plurality of fixing holes and a plurality of first fixing members, each of which movably passes through the corresponding fixing hole and the retaining ring to limit the swing of the retaining ring.

[0016] The adjustable pet carrier fixing structure for vehicles includes two mounting rods, each having a first through hole and a second through hole at its two ends. An extension member is also provided, having a first end and a second end. The first end is movably inserted into either of the first through holes, and the second end is movably inserted into the other first through hole; or the first end is movably inserted into either of the second through holes, and the second end is movably inserted into the other second through hole.

[0017] The adjustable pet carrier fixing structure for vehicles includes a connecting member at the first end and the second end, and a plurality of connecting holes on the outer wall surface of the two mounting rods, with each connecting member movably engaging with any connecting hole on the corresponding mounting rod.

[0018] The adjustable pet carrier fixing structure for vehicles further includes a plurality of plugs, each plug being movably connected to both ends of the two mounting rods.

[0019] The adjustable pet carrier fixing structure for vehicles further includes two assemblies and a plurality of second fixing members. Each assembly is connected to one side of any placement part, and the other assembly is connected to the corresponding side of another placement part. Each assembly has a hole, and each second fixing member passes through the corresponding hole and the corresponding placement part, and restricts the swing of the corresponding assembly.

[0020] The adjustable pet carrier fixing structure for vehicles has an assembly groove on the outer wall of each of the two side frames.

[0021] The adjustable pet carrier fixing structure for vehicles includes a limiting member on the outer surface of the positioning rod, and the sliding range of the adjusting component relative to the positioning rod is limited by the limiting member.

[0022] Based on the technology defined above, the advantages of this utility model are that owners can make multiple adjustments according to the size of the pet carrier to ensure that the pet carrier can be adjusted to the desired support position and be stably restrained. Through the combination of the positioning rod, retaining ring, and adjustment components, the pet carrier receives more stable support, effectively reducing the risk of pet injury even in the event of emergency braking or other emergencies, further improving driving safety and protecting both the pet and the owner. Furthermore, it can prevent pets from interfering with driving operations, reduce the risk of distraction, and improve driving concentration. Also, because it helps maintain the pet carrier in a fixed position, it helps reduce pet anxiety and discomfort while riding in the car. Moreover, by using this utility model in conjunction with various pet carriers, it can also isolate hair, stains, and scratches, reducing the burden of cleaning the car interior and protecting the car's interior decor and cleanliness. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0024] Figure 2 This is a three-dimensional schematic diagram from another perspective of the present invention.

[0025] Figure 3 This is an exploded perspective view of the present invention.

[0026] Figure 4 This is a schematic diagram of the positioning component of this utility model being attached to the positioning hole.

[0027] Figure 5 This is a schematic diagram showing the first spring being compressed and the positioning member disengaging from the positioning hole when the operating component of this utility model is pressed.

[0028] Figure 6 This is a schematic diagram of the pull pin assembly of this utility model at the positioning hole.

[0029] Figure 7 This is a schematic diagram showing that the pull pin of this utility model is pulled, the second spring is compressed, and the pull pin is disengaged from the positioning hole.

[0030] Figure 8 This is a schematic diagram of the present invention with the extension component installed.

[0031] Figure 9 This is a schematic diagram of the assembly slot for fixing pet carriers according to the present invention.

[0032] Figure 10 This is a schematic diagram of the first usage state of this utility model.

[0033] Figure 11 This is a schematic diagram of the second usage state of this utility model.

[0034] Figure 12 This is a schematic diagram of the third usage state of this utility model.

[0035] Figure 13 This is a schematic diagram of the fourth usage state of this utility model.

[0036] Explanation of reference numerals in the attached drawings: Base 1; Side frame 11; Assembly slot 111; Connecting rod 12; Storage space 13; Mounting rod 2; First through hole 21; Second through hole 22; Connecting hole 23; Positioning rod 3; Positioning hole 31; Limiting component 32; Retaining ring 4; Adjusting component 41; Sleeve component 411; Mounting slot 4111; Operating component 412; First spring 413; Positioning component 414; Fixing hole 415; Kit 416; Pull pin 417; Second spring 418; Pet carrier 5; First fixing component 61; Second fixing component 62; Extension component 7; First end 71; Connecting component 711; Second end 72; Plug 8; Assembly component 9; Hole 91. Detailed Implementation

[0037] To clearly illustrate the objectives and effects achieved by this utility model, its features and effects will now be described in detail with reference to the accompanying drawings. Please refer to the accompanying drawings. Figures 1 to 13 As shown, this utility model provides an adjustable pet carrier fixing structure for vehicles, comprising: a base 1, the base 1 having two side frames 11 and a connecting rod 12, the two ends of the connecting rod 12 being connected to the bottom of the two side frames 11 respectively; two mounting rods 2, the two ends of the two mounting rods 2 being connected to the top of the two side frames 11 respectively, and the two mounting rods 2 being spaced apart, forming a storage space 13 between the two mounting rods 2 and the two side frames 11; and a positioning rod 3, the two ends of the positioning rod 3 being connected to the two mounting rods 2 respectively, and the positioning rod 3 having a plurality of positioning holes 3. 1. An adjustment component 41 is fitted onto the positioning rod 3, and a portion of the adjustment component 41 is movably engaged with any positioning hole 31. Additionally, a retaining ring 4 is fitted onto both ends of the adjustment component 41, and the retaining ring 4 can be flipped relative to the positioning rod 3. By fixing the base 1 to the seat, placing a pet carrier 5 in the storage space 13, and then raising the retaining ring 4, the size of the storage space 13 can be changed by operating the adjustment component 41 to move the retaining ring closer to or further away from any mounting rod 2, thus allowing for use according to the size of the pet carrier 5. The accompanying drawings used in this document are for illustrative purposes only and are not intended to limit the scope of this invention.

[0038] When pet owners want to take their pets out, they can first install the base 1 on the vehicle seat. Additionally, a seat protector can be placed between the vehicle seat and the base 1 to prevent scratches on the seat surface and maintain a clean interior. Next, place the pet carrier 5 in the storage space 13, then raise the retaining ring 4 and operate the adjustment component 41 to engage with any of the positioning holes 31 on the positioning rod 3. This adjusts the relative position of the retaining ring 4 and the pet carrier 5. After adjustment, the retaining ring 4 will fit snugly against the side of the pet carrier 5. Together with the accessories of the pet carrier 5 itself, such as Velcro and buckles, it can be fastened or adhered to any position on the base 1, further enhancing overall stability and preventing... The pet carrier 5 prevents slipping or tipping during vehicle movement, reducing the risk of dizziness for pets and improving ride comfort and safety. By securing the pet carrier 5 to a specific area of ​​the vehicle, it prevents pets from running around and interfering with driving, and complies with the safety recommendations and regulations for new cars in many countries. It is a specially designed safety device for pets. Furthermore, considering that most vehicle seats have a certain degree of tilt, which could affect the stability and levelness of the pet carrier 5 after installation in the storage space 13 if not adjusted, the base 1 has a compensating angle structure, allowing the storage space 13 to approximately return to a level state after installation. This design not only maintains the stable placement of the pet carrier 5 during driving but also prevents slipping or tipping due to forward tilting, reducing dizziness, anxiety, and other discomfort in pets, further improving their ride comfort and safety, and ensuring that owners can drive with peace of mind. Figures 9 to 13 As shown.

[0039] In addition, to facilitate the owner's installation of the base onto the seat, two assemblies 9 and a plurality of second fixing members 62 are provided. Each assembly 9 is connected to one side of any placement part 111, and another assembly 9 is connected to the corresponding side of another placement part 111. Each assembly 9 has a hole 91, and each second fixing member 62 passes through the corresponding hole 91 and the corresponding placement part 111, thus restricting the swing of the corresponding assembly 9. Depending on the configuration of different vehicle seats, the owner can first install the assemblies 9 of different sizes onto the corresponding sides of the two placement parts 111, and then install the base 1 onto the seat using the assemblies 9. After adjusting to an appropriate angle, the second fixing members 62 are inserted between the corresponding holes 91 and the placement parts 111 to complete the seat fixation. For pet owners, the operation is relatively simple. After installing assembly component 9, simply align it with the corresponding position on the vehicle seat to quickly and securely place base 1 on the seat. The second fastener 62 further secures it, preventing the overall structure from shaking due to bumps or turns, thus ensuring the stability and safety of the pet while riding. In addition, assembly component 9 can be equipped with a foolproof design to facilitate installation by the pet owner. Figures 1 to 3 and Figures 9 to 13 As shown.

[0040] Furthermore, to facilitate the owner's adjustment of the position of the retaining ring 4, the adjustment assembly 41 further includes a sleeve 411, an operating member 412, a first spring 413, and a positioning member 414. The sleeve 411 is fitted onto the positioning rod 3 and has a mounting groove 4111. The operating member 412 is disposed in the mounting groove 4111. The two ends of the first spring 413 respectively abut against one end of the operating member 412 and the mounting groove 4111. The positioning member 414 is connected to the other end of the operating member 412 and passes through the sleeve 411, and can be engaged or disengaged from either positioning hole 31. When the operating member 412 is pressed, the first spring 413... 13 is pressed towards the bottom surface of the mounting groove 4111, and the positioning member 414 is released from the locking with the positioning hole 31. When the external force is removed, the first spring 413 elastically resets in the opposite direction to the bottom surface of the mounting groove 4111, and the positioning member 414 is re-locked into any positioning hole 31, returning to the fixed state. In addition, in order to avoid unnecessary shaking or loosening of the retaining ring 4 during vehicle movement, which would affect the fixing effect of the pet carrier 5, the adjustment component 41 further has a plurality of fixing holes 415 and a plurality of first fixing members 61. Each first fixing member 61 moves through the corresponding fixing hole 415 and the retaining ring 4 to limit the swing of the retaining ring 4. The owner can first stand the retaining ring 4 upright, then press the operating member 412 to squeeze the first spring 413, causing the positioning member 414 to disengage from the positioning hole 31, thereby adjusting the position of the retaining ring 4. After adjusting to the appropriate position, the operating member 412 can be released. At this time, the first spring 413 will elastically return to its original position and push the operating member 412 to return to its original position, thereby allowing the positioning member 414 to re-lock into any positioning hole 31, completing the fixation of the retaining ring 4. Subsequently, the first fixing member 61 passes through the fixing hole 415 and the retaining ring 4 to restrict the opening and closing of the retaining ring 4. After use, the user can first remove the pet carrier 5, and after disassembling each of the first fixing members 61, fold and store the retaining ring 4. During use, the first fixing members 61 can further enhance the structural stability, preventing the retaining ring 4 from swinging due to any reason, which would affect the fixing effect of the pet carrier 5. After use, the removal of the first fixing members 61 makes it easy to fold and store the retaining ring 4, avoiding it taking up too much space or causing inconvenience in carrying it. Figures 4 to 5 and Figures 9 to 13 As shown.

[0041] Continuing from the previous description, in order to provide diverse operating methods to meet the operating habits of different owners, the adjustment component 41 further includes a kit 416, a pull pin 417, and a second spring 418. The kit 416 is fitted onto the positioning rod 3. One end of the pull pin 417 passes through the kit 416 and is movable and disengaged from any positioning hole 31. The second spring 418 is located inside the kit 416 and fitted onto the pull pin 417. The two ends of the second spring 418 respectively abut against the inner wall of the kit 416 and the pull pin 417. When a pulling force is applied to the pull pin 417, the second spring 418 is pressed in the opposite direction to the positioning rod 3, and the pull pin 417 is released from the engagement with the positioning hole 31. When the pulling force is lost, the second spring 418 elastically returns to its original position in the direction of the positioning rod 3, and the pull pin 417 is re-engaged in any positioning hole 31, returning to a fixed state. When using the pet carrier, the owner can first raise the retaining ring 4, then pull the pull pin 417 to release it from the positioning hole 31. Next, adjust the retaining ring 4 to the appropriate position corresponding to the size of the pet carrier 5, and then release the pull pin 417. The second spring 418 will then cause the pull pin 417 to spring back and re-engage with the positioning hole 31, thus completing the positioning. Through different operating methods such as the pull pin structure and the press-type mechanism, it can accommodate different owners' operating habits, resulting in greater flexibility and convenience in overall application. Figures 6 to 7 and Figures 9 to 13 As shown.

[0042] Furthermore, since the pet carrier 5 varies in both length and width, in order to accommodate pet carriers 5 of various sizes, each end of the two mounting rods 2 is further provided with a first through hole 21 and a second through hole 22. An extension member 7 is also provided, which has a first end 71 and a second end 72. The first end 71 is movably inserted into any of the first through holes 21, and the second end 72 is movably inserted into another first through hole 21, or the first end 71 is movably inserted into any of the second through holes 22, and the second end 72 is movably inserted into another second through hole 22. In addition, in order to facilitate fixing the extension member 7 and adjusting the extension length of the extension member 7, each of the first end 71 and the second end 72 is further provided with a connecting member 711. The outer wall surface of the two mounting rods 2 is further provided with a plurality of connecting holes 23, and each connecting member 711 is movably engaged with any of the connecting holes 23 on the corresponding mounting rod 2. The pet owner can first consider installing the pet carrier 5 on the left or right side of the vehicle seat. Insert both ends of the extension 7 into the first through hole 21 or the second through hole 22 respectively. Then, adjust the width according to the width of the pet carrier 5 so that the connecting member 711 is inserted into the appropriate connecting hole 23, extending the width. The connecting member 711 can use a positioning steel ball structure. When both ends of the extension 7 are inserted into the first through hole 21 or the second through hole 22 respectively, the steel ball protrudes outward under the pushing force of the elastic component and embeds into the corresponding connecting hole 23, completing stable positioning. This operation is not only quick and convenient, but also prevents the extension 7 from sliding or falling off during driving, thus ensuring structural stability and safety, and meeting the usage needs of pet carriers 5 of different sizes. Figure 3 , Figure 8 and Figures 12 to 13 As shown.

[0043] Additionally, to prevent scratches to the owner during installation and to avoid rust inside the mounting rod 2, a plurality of plugs 8 are provided, each plug 8 being movable and assembled with both ends of the two mounting rods 2. The plugs 8 can be used to seal the first perforation 21 and the second perforation 22, preventing dust, moisture, or hair from accumulating inside the tube, causing problems such as difficulty in cleaning or affecting product lifespan. The plugs 8 can also be rubber anti-collision parts; through the coverage and cushioning of the anti-collision parts, the edges of the mounting rod 2 can be effectively prevented from directly contacting the vehicle interior trim, and injuries to the owner caused by collisions during installation can also be prevented, providing additional protection and cushioning, further improving safety in use. When the extension 7 needs to be installed, simply remove the plug 8 on the side of the extension 7 to be installed, allowing the extension 7 to be installed smoothly. Figures 1 to 3 and Figures 8 to 13 As shown.

[0044] Furthermore, to further ensure the pet carrier 5 is stably fixed to the base 1, the outer walls of the two side frames 11 each have an assembly groove 111. Besides being connected to the side frames 11 via Velcro, buckles, and other accessories, some pet carriers 5 can also be fastened to the assembly groove 111 using buckles and other accessories, further increasing structural stability. For some wider pet carriers 5, the outer wall of the extension 7 can also have an assembly groove 111 for further securing wider pet carriers 5 with buckles and other accessories, such as… Figures 1 to 3 and Figures 8 to 13 As shown.

[0045] Furthermore, to prevent the adjustment component 41 from sliding excessively during the owner's adjustment process, which could lead to misalignment or improper adjustment of the retaining ring 4 and affect stability and safety, the outer surface of the positioning rod 3 is further provided with a limiting member 32. The sliding range of the adjustment component 41 relative to the positioning rod 3 is limited by the limiting member 32. The limiting member 32 ensures that the sliding adjustment of the adjustment component 41 is restricted to a certain extent, allowing the retaining ring 4 to be positioned within a preset range, thereby improving the accuracy of the owner's operation of the adjustment component 41. Figures 2 to 3 As shown.

Claims

1. An adjustable pet carrier fixing structure for vehicles, characterized in that, Include: A base having two side frames and a connecting rod, the two ends of which are respectively connected to the bottom of the two side frames; Two mounting rods are connected at both ends to the top of the two side frames respectively, and the two mounting rods are spaced apart, forming a storage space between the two mounting rods and the two side frames; A positioning rod, the two ends of which are respectively connected to the two mounting rods, and the positioning rod has a plurality of positioning holes; An adjustment component is sleeved on the positioning rod, and a portion of the adjustment component is movably engaged with any positioning hole; a retaining ring is also provided, which is sleeved on both ends of the adjustment component and can be flipped relative to the positioning rod. The size of the storage space can be changed by fixing the base to the seat, placing a pet carrier in the storage space, and then raising the retaining ring. The size of the storage space can be changed by operating the adjustment component to move the retaining ring closer to or further away from any mounting rod.

2. The pet bag fixing structure for a vehicle according to claim 1, wherein The adjustment assembly also includes a sleeve, an operating member, a first spring, and a positioning member. The sleeve is fitted onto the positioning rod and has a mounting groove. The operating member is disposed in the mounting groove. The two ends of the first spring abut against one end of the operating member and the mounting groove, respectively. The positioning member is connected to the other end of the operating member and passes through the sleeve, and can be engaged or disengaged from any positioning hole. When the operating member is pressed, the first spring is pressed towards the bottom surface of the mounting groove, causing the positioning member to disengage from the positioning hole. When the external force is removed, the first spring elastically resets in the opposite direction to the bottom surface of the mounting groove, and the positioning member re-engages in any positioning hole, returning to a fixed state.

3. The pet bag fixing structure for a vehicle according to claim 1, wherein The adjustment assembly also includes a kit, a pull pin, and a second spring. The kit is fitted onto the positioning rod. One end of the pull pin passes through the kit and is movable and disengaged from any positioning hole. The second spring is located inside the kit and fitted onto the pull pin. The two ends of the second spring abut against the inner wall of the kit and the pull pin, respectively. When a pulling force is applied to the pull pin, the second spring presses in the opposite direction to the positioning rod, causing the pull pin to disengage from the positioning hole. When the pulling force is lost, the second spring elastically resets towards the positioning rod, and the pull pin re-engages with any positioning hole, returning to a fixed state.

4. The pet bag fixing structure for vehicle according to claim 1, wherein The adjustment assembly also has a plurality of fixing holes and a plurality of first fixing members, each of which moves through the corresponding fixing hole and the retaining ring to limit the swing of the retaining ring.

5. The pet bag fixing structure for a vehicle according to claim 1, wherein The two mounting rods have a first through hole and a second through hole at each end, and are also provided with an extension member. The extension member has a first end and a second end. The first end is movably inserted into either of the first through holes, and the second end is movably inserted into the other first through hole, or the first end is movably inserted into either of the second through holes, and the second end is movably inserted into the other second through hole.

6. The pet bag fixing structure for a vehicle according to claim 5, wherein The first end and the second end each have a connecting member, and the outer wall surface of the two mounting rods each has a plurality of connecting holes, and each connecting member is movably engaged with any connecting hole on the corresponding mounting rod.

7. The pet bag fixing structure for a vehicle according to claim 1, wherein It is also provided with a plurality of plugs, each plug being movably connected to both ends of the two mounting rods.

8. The pet bag fixing structure for a vehicle according to claim 1, wherein It also includes two assemblies and a plurality of second fixing members. Each assembly is connected to one side of any placement part, and the other assembly is connected to the corresponding side of another placement part. Each assembly has a hole, and each second fixing member passes through the corresponding hole and the corresponding placement part, and restricts the swing of the corresponding assembly.

9. The pet bag fixing structure for a vehicle according to claim 1, wherein The outer wall surfaces of the two side frames each have an assembly groove.

10. The pet bag fixing structure for a vehicle according to claim 1, wherein The outer surface of the positioning rod also has a limiting element, which limits the sliding range of the adjusting component relative to the positioning rod.