Injection mold for water pressure boosting anti-retreating instrument desk support

Abstract

The utility model discloses a kind of water rises and increases pressure anti-retrogression instrument table support injection mould, comprising: the lower mould being provided with pipe material installation cavity, a pair of anti-retrogression device being fixed on the lower mould and the upper mould being suitable for with the lower mould closing mould;Two anti-retrogression devices are located at the both ends of pipe material installation cavity respectively;Each anti-retrogression device includes water-passing element, water-passing element driving device that water-passing element is inserted or separated from pipe material is driven, and limiting component being detachably connected with water-passing element, one end can be inserted into pipe material and sealed cooperation;When water-passing element is connected with pipe material, the position of limiting component fixed water-passing element, when limiting component is separated from water-passing element, water-passing element driving device can drive water-passing element to insert or separate from pipe material;Water-passing element driving device and limiting component are connected with the control system signal of mould body all.The utility model solves the technical problem that the existing pressure-increasing injection mould water-passing element is not stable with aluminium pipe connection, reaches the technical effect that water-passing element is stably connected with aluminium pipe.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for a water-expanding pressure-increasing anti-backward instrument panel bracket. Background Technology

[0002] With the continuous development of automotive component materials, traditional steel is still widely used due to its excellent strength and durability, but its large weight and high cost are becoming increasingly prominent issues. Therefore, "replacing steel with plastic" is gradually becoming an industry trend, aiming to achieve lightweighting, meet environmental protection requirements, and optimize costs.

[0003] Currently, lightweighting is typically achieved by wrapping the main pipe with plastic, with aluminum pipes being the most common material for the main pipe. Due to the product's unique structure, significant injection pressure is generated during the injection molding process on the aluminum pipe. Existing processes usually involve installing water inlet pipes at both ends of the aluminum pipe to inject water into the pipe. A pressurization system is then used to increase the water pressure inside the pipe to 40 MPa or even higher, using the water pressure to resist the pressure during the injection molding process and prevent the aluminum pipe from deforming.

[0004] However, as the pressurization system gradually increases the water pressure inside the pipe, the drive cylinder that connects the water-passing component to the aluminum pipe is at risk of being pushed back under pressure. This can cause instability in the connection between the water-passing component and the aluminum pipe, resulting in fluctuations in the water pressure inside the pipe that affect product quality, or even cause high-pressure leakage that damages the equipment and affects production safety.

[0005] Existing booster systems use a combination sealing ring at the connection between the water-passing component and the aluminum pipe. The force generated by the deformation of the sealing ring under pressure increases the tightness of the connection, thereby reducing the stress on the drive cylinder. However, this reinforcement method will gradually deteriorate as the sealing ring is used and ages, resulting in a shorter service life of the equipment. Utility Model Content

[0006] This application provides a water-expansion pressurization anti-backward instrument panel bracket injection mold to solve the technical problem of unstable connection between the water inlet structure and aluminum pipe in existing pressurization injection molds.

[0007] This application provides an injection mold for a water-expanding pressure-boosting anti-backward instrument panel bracket, comprising: a lower mold with a pipe mounting cavity, a pair of anti-backward devices fixed on the lower mold, and an upper mold suitable for closing with the lower mold; the two anti-backward devices are respectively located at both ends of the pipe mounting cavity; each anti-backward device includes a water-passing component with one end that can be inserted into the pipe for sealing, a water-passing component driving device for inserting or detaching the water-passing component from the pipe, a limiting component detachably connected to the water-passing component, and a driving component for driving the limiting component; when the water-passing component is connected to the pipe, the driving component drives the limiting component to insert into the water-passing component and fix the position of the water-passing component; when the driving component drives the limiting component to detach from the water-passing component, the water-passing component driving device can drive the water-passing component to insert into or detach from the pipe; the water-passing component driving device and the driving component are both connected to the control system signal of the injection mold.

[0008] By adopting the above technical solution, an anti-backward device is installed at each end of the pipe installation cavity. After the water-passing component is connected to the pipe, the driving component drives the limiting component to fix the position of the water-passing component. Compared with the traditional sealing ring connection method, the mechanical limiting structure of the plug-in fit is added, which effectively avoids the backward movement of the water-passing component under high pressure, ensures the connection stability of the water-passing component, avoids the risk of water pressure fluctuation and high pressure leakage, thereby improving product quality and production safety. At the same time, the entire anti-backward device is connected to the control system signal, realizing automated control and improving operation efficiency and reliability.

[0009] Preferably, the anti-backward device further includes a housing with a first channel, the water-passing component is slidably disposed in the first channel, and the driving assembly includes a first driving device disposed on the housing. The driving direction of the first driving device is perpendicular to the movement direction of the water-passing component. The driving end of the first driving device is provided with at least one first limiting post. The housing is provided with a second channel for the first limiting post to slide and communicate with the first channel. When the water-passing component is connected to the pipe, the first driving device drives the first limiting post to engage with the water-passing component. When the first driving device drives the first limiting post to disengage from the water-passing component, the water-passing component driving device drives the water-passing component to insert into or disengage from the pipe.

[0010] By adopting the above technical solution, the first driving device drives the first limiting post to engage with the water-passing component. Compared with the traditional sealing ring connection method, the mechanical locking structure enhances the fixing effect of the water-passing component, effectively prevents the water-passing component from moving backward under high pressure, and improves the operational stability.

[0011] Preferably, the drive assembly further includes a second drive device disposed on the housing. The second drive device is fixed on the side of the housing opposite to the lower mold. The drive direction of the second drive device is perpendicular to the drive directions of the water-passing component drive device and the first drive device. The drive end of the second drive device is provided with a second limiting post. The housing is provided with a third channel for the second limiting post to slide and communicate with the first channel. When the water-passing component is connected to the pipe, the second limiting post is inserted into the third channel and engages with the water-passing component.

[0012] By adopting the above technical solution, a second driving device and a second limiting post are added, providing a dual locking mechanism. Compared with the traditional sealing ring fixing method, this further ensures the fixation of the water passage component position, reduces the risk of connection loosening due to the failure of a single limiting structure, and improves the reliability and safety of the system. At the same time, the second limiting post is vertically connected to the first limiting post, optimizing the force transmission path and making the locking action more stable and precise.

[0013] Preferably, one end of the first channel is connected to the pipe installation cavity, and the water-passing component driving device is located at the other end of the first channel. The driving end of the water-passing component driving device is provided with a detachable first connector. The water-passing component and the first connector are detachably connected, and the first connector is slidably located in the first channel.

[0014] By adopting the above technical solution, the water-passing component and the first connecting component are slidably arranged in the first channel of the shell. The guiding function of the first channel ensures the operational stability of the first connecting component and the water-passing component, reduces the probability of uneven wear and jamming, and the detachable design of the first connecting component facilitates maintenance and replacement of parts, improves the service life of the mold and the convenience of maintenance, and reduces long-term operating costs.

[0015] Preferably, the first connector is provided with a first slot suitable for insertion of a first limiting post and a second slot suitable for insertion of a second limiting post, wherein when the water-passing component is connected to the pipe, the first slot is aligned with the second channel and the second slot is aligned with the third channel.

[0016] By adopting the above technical solution, the design of the first slot and the second slot allows the first limiting post and the second limiting post to be accurately inserted, achieving double locking in two different directions, further preventing accidental movement or dislodgement of the water-passing component. At the same time, the first connector is inserted and cooperates with the limiting component to avoid wear on the water-passing component. Compared with the rubber material of traditional sealing rings, the first connector can be made of a material with better wear resistance, improving the durability of the equipment.

[0017] Preferably, each of the upper and lower end faces of the first connector is provided with a first slot, and the driving end of the first driving device is provided with two corresponding first limiting posts.

[0018] By adopting the above technical solution, two first limiting posts are respectively set on the upper and lower sides of the first connector, which increases the contact points at the connection of the limiting structure, optimizes the force distribution of the limiting posts, and improves the fixing strength and uniformity.

[0019] Preferably, the two first limiting posts are respectively inserted into the first slots on the upper and lower end faces of the first connector, and the first limiting post on the upper end face of the first connector is provided with a limiting post slot suitable for the insertion of the second limiting post; when the first limiting post with the limiting post slot is inserted into the first slot on the upper end face of the first connector, the limiting post slot is simultaneously aligned with the second slot and the third channel.

[0020] By adopting the above technical solution, the setting of the limit post slot realizes the mechanical interlock between the second limit post and the first limit post, and realizes the linkage locking, making the locking mechanism more stable and coordinated, reducing the micro-movement of the water-passing parts under high pressure, and further enhancing the anti-backward effect.

[0021] Preferably, the drive end of the first drive device is provided with a detachable threaded connecting block, and two first limiting posts are provided on the end face of the connecting block away from the first drive device, and each first limiting post is detachably threadedly connected to the connecting block.

[0022] By adopting the above technical solution, the first limiting post is fixed on the connecting block by a detachable threaded connection, which allows for quick replacement and adjustment to adapt to different pipe materials or working conditions, improving the adaptability and maintenance efficiency of the mold. At the same time, compared with the groove connection of the sealing ring, the threaded connection provides higher connection strength and ensures the reliability of the locking process.

[0023] Preferably, a pair of guide rails are provided on one side of the drive end of the first drive device. The guide rails extend along the drive direction of the first drive device. The two ends of each guide rail are connected to the first drive device and the housing, respectively. A connecting block is provided between the two guide rails. Each guide rail is provided with a groove extending along the drive direction of the first drive device. The two ends of the connecting block are slidably engaged with the grooves on the two guide rails, respectively.

[0024] By adopting the above technical solution, the grooves on the two guide rails ensure the smoothness and accuracy of the connecting block during movement, reducing friction and wear. At the same time, the guiding effect of the grooves on the guide rails improves the insertion accuracy of the first limit post, enhances the consistency and reliability of locking, and thus further ensures the anti-backward effect.

[0025] One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. A pair of anti-backward devices linked to the control system are set in the lower mold. The water-passing component is driven to connect with the pipe by the water-passing component driving device. The first limit post and the second limit post are set to form a double mechanical locking structure. Compared with the traditional sealing ring, it can lock the position of the water-passing component extremely reliably during the water pressure increase process, fundamentally eliminating the risk of the water-passing component backing up under pressure, thereby ensuring the stability of the water pressure in the pipe, effectively improving the product molding quality, and eliminating the equipment damage and safety hazards that may be caused by high pressure leakage. 2. The modular design not only ensures that each component has sufficient connection strength and motion accuracy when subjected to high pressure, but also greatly facilitates the assembly, daily maintenance and replacement of key components of the equipment, significantly improving the applicability and service life of the mold. 3. Axial propulsion is achieved through the water-passing component drive device. The first drive device performs lateral horizontal locking, and the second drive device performs additional locking from the vertical direction, realizing a redundant interlocking system in three different directions. Compared with the traditional one-way connection of the sealing ring, it greatly enhances the reliability and safety of locking, providing a solid multiple guarantee for resisting extremely high internal water pressure during the injection molding process, and ensuring the continuity and stability of the production process. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A top view of the lower mold, pipe, and anti-backward device in an injection mold for a water-expanding pressure-boosting anti-backward instrument panel bracket provided by this utility model; Figure 2 An isometric drawing of an anti-backward device in an injection mold for a water-expanded pressure-boosting anti-backward instrument panel bracket, provided by this utility model; Figure 3 An exploded view of an anti-backward device in an injection mold for a water-expanding pressurized anti-backward instrument panel bracket provided by this utility model; Figure 4 An exploded view of a limiting component in an injection mold for a water-expanding, pressurized, and anti-backward instrument panel bracket, provided for this utility model; Figure 5 A isometric view of the connection between the water-passing component driving device, the first connecting component, and the water-passing component in the injection mold of a water-expansion pressurization and anti-backward instrument panel bracket provided by this utility model.

[0028] Explanation of reference numerals in the attached drawings: 1. Lower mold; 2. Anti-backward device; 21. First channel; 22. Second channel; 23. Third channel; 24. Housing; 3. Water passage component driving device; 4. First connecting piece; 41. First slot; 42. Second slot; 5. Water passage component; 6. Driving assembly; 61. First driving device; 611. Connecting block; 612. Guide rail component; 62. Second driving device; 7. Limiting assembly; 71. First limiting post; 711. Limiting post slot; 72. Second limiting post; 8. Water inlet pipe; 9. Pipe material. Detailed Implementation

[0029] This application provides a water-expansion pressurization anti-backward instrument panel bracket injection mold to solve the technical problem of unstable connection between the water inlet structure and aluminum pipe in existing pressurization injection molds.

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] Example: Figures 1 to 5 The embodiment of this application provides a water-pressure-boosting anti-backward instrument panel bracket injection mold, including: an upper mold and a lower mold 1. A pipe 9 is installed in the pipe installation cavity of the lower mold 1. The pipe installation cavity is elongated and has an anti-backward device 2 at each end. Each anti-backward device 2 has a through first channel 21 in its housing 24. One end of the first channel 21 is directly opposite the pipe installation cavity. A slidable water-passing component 5 is provided in the first channel 21. The other end of the first channel 21 is provided with a water-passing component driving device 3. The driving end of the water-passing component driving device 3 is located in the first channel 21 and can drive the water-passing component 5 into the pipe installation cavity to connect with the pipe 9. It can also drive the water-passing component 5 to detach from the pipe 9. A water inlet pipe 8 for injecting high-pressure water is connected to the water-passing component 5. The housing 24 is also provided with a driving assembly 6 and a limiting assembly 7 for fixing the position of the water-passing component 5.

[0036] When the water-passing component 5 is connected to the pipe 9, the driving component 6 drives the limiting component 7 to fix the position of the water-passing component 5. Only when the driving component 6 drives the limiting component 7 to disengage from the water-passing component 5 can the water-passing component driving device 3 drive the water-passing component 5 to insert into or disengage from the pipe 9.

[0037] More preferably, in the embodiments provided in this application, such as Figure 3 and Figure 5 As shown, a first connecting member 4 is provided between the water-passing component 5 and the driving end of the water-passing component driving device 3. The driving assembly 6 includes a first driving device 61 and a second driving device 62. The limiting assembly 7 includes a first limiting post 71 and a second limiting post 72. The first driving device 61 is located on one side of the housing 24, and the second driving device 62 is located on the upper end of the housing 24. A connecting block 611 is provided on the driving end of the first driving device 61. The extending direction of the connecting block 611 is perpendicular to the surface of the lower mold 1. A first limiting post 71 is provided at each of the upper and lower ends of the connecting block 611. The two first limiting posts 71 are arranged parallel to each other. The housing 24 is provided with a space suitable for the two first limiting posts 71. The second channel 22 is slidably inserted, and both second channels 22 are open at one end facing the first driving device 61. The upper and lower end faces of the first connector 4 are provided with first slots 41 suitable for the insertion of the first limiting post 71. When the water-passing component 5 is connected to the pipe 9, the first slot 41 is aligned and connected with the second channel 22. The driving end of the second driving device 62 is provided with a second limiting post 72, and the housing 24 is provided with a third channel 23 for the second limiting post 72 to slide into. The first connector 4 is provided with a second slot 42 suitable for the lower end of the second limiting post 72 to be inserted. When the water-passing component 5 is connected to the pipe 9, the second slot 42 is aligned and connected with the third channel 23.

[0038] Furthermore, in the embodiments provided in this application, such as Figure 3 and Figure 4As shown, the third channel 23 is connected to the second channel 22 located on the upper side inside the housing 24. The first limiting post 71 located on the upper end face of the first connector 4 is provided with a limiting post slot 711 suitable for the insertion of the second limiting post 72. When the water-passing part 5 is connected to the pipe 9 and the first limiting post 71 with the limiting post slot 711 is inserted into the first slot 41 on the upper end face of the first connector 4, the limiting post slot 711 is simultaneously aligned and connected with the second slot 42 and the third channel 23.

[0039] Furthermore, in the embodiments provided in this application, such as Figure 2 and Figure 3 As shown, a pair of guide rails 612 are provided between the first driving device 61 and the housing 24. One end of each guide rail 612 is fixed to the first driving device 61 by bolts, and the other end of each guide rail 612 is fixed to the housing 24 by bolts. The two guide rails 612 are respectively located at both ends of the connecting block 611, and each guide rail 612 has a groove extending along the driving direction of the first driving device 612 on its end face facing the other guide rail 612. The two ends of the connecting block 611 are respectively embedded in the grooves of the two guide rails 612 and slide in cooperation with the grooves.

[0040] Working principle: Pipe 9 is installed in the pipe installation cavity. The control system sequentially controls the operation of the water-passing component drive device 3, the first drive device 61, and the second drive device 62. The water-passing component drive device 3 pushes the water-passing component 5 into the pipe installation cavity and connects it with the pipe 9. At this time, the first slot 41 is connected to the second channel 22, and the second slot 42 and the third channel 23 are aligned. After the second drive device 62 pushes the two first limiting posts 71 into the first slot 41, the limiting post slots 711 are simultaneously aligned with the second slot 42 and the third channel 23, forming a channel suitable for the insertion of the second limiting post 72. Finally, the second drive device 62 inserts the second limiting post 72 into the limiting post slots 711 and the second slot 42 through the third channel 23 in sequence, completing the double limiting lock. After processing is completed, the control system sequentially controls the second drive device 62, the first drive device 61, and the water-passing component drive device 3 to withdraw.

[0041] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0042] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0043] This specification and accompanying drawings are merely illustrative examples of this application and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Therefore, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. A water-expansion pressurization anti-backward instrument panel bracket injection mold, characterized in that: The system includes a lower mold (1) with a pipe installation cavity, a pair of anti-backward devices (2) fixed on the lower mold (1), and an upper mold adapted to close with the lower mold (1); the two anti-backward devices (2) are located at opposite ends of the pipe installation cavity; each anti-backward device (2) includes a water-passing component (5) that can be inserted into the pipe (9) for sealing, a water-passing component driving device (3) that drives the water-passing component (5) to insert into or detach from the pipe (9), a limiting component (7) detachably connected to the water-passing component (5), and The driving component (6) drives the limiting component (7); when the water passage component (5) is connected to the pipe (9), the driving component (6) drives the limiting component (7) to insert into the water passage component (5) and fix the position of the water passage component (5); when the driving component (6) drives the limiting component (7) to disengage from the water passage component (5), the water passage component driving device (3) can drive the water passage component (5) to insert into or disengage from the pipe (9); both the water passage component driving device (3) and the driving component (6) are connected to the control system signal of the injection mold.

2. The injection mold for a water-expanding, pressurized, anti-backward instrument panel bracket according to claim 1, characterized in that, The anti-backward device (2) further includes a housing (24) with a first channel (21). The water-passing component (5) is slidably disposed in the first channel (21). The driving assembly (6) includes a first driving device (61) disposed on the housing (24). The driving direction of the first driving device (61) is perpendicular to the movement direction of the water-passing component (5). The driving end of the first driving device (61) is provided with at least one first limiting post (71). The housing (24) is provided with a second channel (22) for the first limiting post (71) to slide and communicate with the first channel (21). When the water-passing component (5) is connected to the pipe (9), the first driving device (61) drives the first limiting post (71) to insert and cooperate with the water-passing component (5). When the first driving device (61) drives the first limiting post (71) to disengage from the water-passing component (5), the water-passing component driving device (3) drives the water-passing component (5) to insert or disengage from the pipe (9).

3. The injection mold for a water-expanding, pressurized, anti-backward instrument panel bracket according to claim 2, characterized in that, The drive assembly (6) further includes a second drive device (62) disposed on the housing (24). The second drive device (62) is fixed on the side of the housing (24) away from the lower mold (1). The drive direction of the second drive device (62) is perpendicular to the drive direction of the water-passing component drive device (3) and the first drive device (61). The drive end of the second drive device (62) is provided with a second limiting post (72). The housing (24) is provided with a third channel (23) for the second limiting post (72) to slide and communicate with the first channel (21). When the water-passing component (5) is connected to the pipe (9), the second limiting post (72) is inserted into the third channel (23) and engages with the water-passing component (5).

4. The injection mold for a water-expanding, pressurized, and anti-backward instrument panel bracket according to claim 3, characterized in that, One end of the first channel (21) is connected to the pipe installation cavity, and the water-passing component driving device (3) is located at the other end of the first channel (21). The driving end of the water-passing component driving device (3) is provided with a detachable first connector (4). The water-passing component (5) is detachably connected to the first connector (4). The first connector (4) is slidably located in the first channel (21).

5. The injection mold for a water-expanding, pressurized, anti-backward instrument panel bracket according to claim 4, characterized in that, The first connector (4) is provided with a first slot (41) suitable for the insertion of the first limiting post (71) and a second slot (42) suitable for the insertion of the second limiting post (72), wherein when the water-passing part (5) is connected to the pipe (9), the first slot (41) is aligned with the second channel (22) and the second slot (42) is aligned with the third channel (23).

6. The injection mold for a water-expanding, pressurized, and anti-backward instrument panel bracket according to claim 5, characterized in that, The first connector (4) has a first slot (41) on both the upper and lower end faces, and the first drive device (61) has two first limiting posts (71) on the drive end.

7. The injection mold for a water-expanding, pressurized, anti-backward instrument panel bracket according to claim 6, characterized in that, The two first limiting posts (71) are respectively inserted into the first slots (41) on the upper and lower end faces of the first connector (4), and the first limiting post (71) on the upper end face of the first connector (4) is provided with a limiting post slot (711) suitable for the insertion of the second limiting post (72); when the first limiting post (71) with the limiting post slot (711) is inserted into the first slot (41) on the upper end face of the first connector (4), the limiting post slot (711) is simultaneously aligned with the second slot (42) and the third channel (23).

8. The injection mold for a water-expanding, pressurized, and anti-backward instrument panel bracket according to claim 6, characterized in that, The first driving device (61) has a detachable threaded connection block (611) on its driving end. Two first limiting posts (71) are located on the end face of the connecting block (611) away from the first driving device (61), and each first limiting post (71) is detachably threaded to the connecting block (611).

9. The injection mold for a water-expanding, pressurized, and anti-backward instrument panel bracket according to claim 8, characterized in that, The first driving device (61) has a pair of guide rails (612) on one side of its driving end. The guide rails (612) extend along the driving direction of the first driving device (61). The two ends of each guide rail (612) are connected to the first driving device (61) and the housing (24) respectively. The connecting block (611) is located between the two guide rails (612). Each guide rail (612) has a groove extending along the driving direction of the first driving device (61). The two ends of the connecting block (611) are slidably engaged with the grooves on the two guide rails (612).

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