Universal pin type inflation tool

Abstract

The invention is suitable for the technical field of shock absorbers, and provides a universal contact pin type inflation tool which is used for inflating an oil cylinder and a piston rod and comprises a clamping tool, an inflation air chamber and an inflation pressure head, the inflation air chamber is installed on the clamping tool, the piston rod is pressed by the inflation pressure head in a sleeving mode, and the inflation air chamber is a flexible inflation block; the flexible inflation block, the inflation pressure head, the oil cylinder and the piston rod are matched, clamped and sealed to form an inflation space, so that the inflation condition is met, and inflation operation of the piston rod and the oil cylinder is achieved. According to the universal contact pin type inflation tool, on one hand, the inflation efficiency and the inflation effect can be greatly improved, on the other hand, sealing inflation of piston rods and oil cylinders of different sizes can be effectively achieved through the action of the flexible inflation block, meanwhile, the piston rods of different diameters are pressed in a sleeving mode through the action of the inflation pressure head, and the inflation efficiency is greatly improved. Sealing and air inflation of the piston rod with the step and the oil cylinder can be achieved, and therefore the air inflation universality is effectively improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of shock absorbers, and particularly relates to a universal pin type inflation tool. BACKGROUND

[0002] The automobile suspension shock absorber is an automobile part for connecting the automobile chassis and the automobile body to reduce the vibration of the automobile body, is an important part in the suspension, and is related to the driving smoothness and the steering stability of the whole vehicle.

[0003] With the development of the shock absorber industry, the types of shock absorbers are gradually increasing. When the piston rod is inflated, the existing pin type inflation tool is used to clamp the piston rod in the middle through two opposite semicircular air blocks to realize sealing, and then the air needle is inserted into the piston rod through the semicircular air block to perform the inflation operation.

[0004] However, the existing pin type inflation tool cannot be used for inflating the products with steps on the piston rod, and special tooling needs to be matched according to different piston rod diameters for the conventional shock absorber, which causes waste of time and cost. Therefore, it is urgent to provide a universal pin type inflation tool. SUMMARY

[0005] The application provides a universal pin type inflation tool, and aims to solve the problem that the existing pin type inflation tool cannot be used for inflating the products with steps on the piston rod.

[0006] The application is implemented as follows: a universal pin type inflation tool is used for inflating the oil cylinder and the piston rod, and includes a clamping tool, an inflation air chamber and an inflation pressure head, wherein,

[0007] The inflation air chamber is installed on the clamping tool, the inflation pressure head is sleeved on the piston rod, and the inflation air chamber is a flexible inflation block.

[0008] The flexible inflation block, the inflation pressure head and the oil cylinder and the piston rod are clamped and sealed to form an inflation space.

[0009] Optionally, the diameter of the inflation pressure head is consistent with the outer diameter of the oil cylinder, the inflation pressure head is internally provided with a chamfered inner hole, and the diameter of the chamfered inner hole is greater than the diameter of the piston rod.

[0010] Optionally, the flexible inflation block is made of flexible polyurethane material, and the lower end of the flexible inflation block is in interference fit with the oil cylinder.

[0011] Optionally, the sizes of the inflation air chamber and the inflation pressure head are the same, and the upper end of the flexible inflation block is in interference fit with the inflation pressure head.

[0012] Optionally, the flexible inflation block has a U-shaped structure, the inner wall of the U-shaped structure is provided with an air needle hole, and the air needle hole is used for sealing connection with the air needle.

[0013] Optionally, the tooling further comprises a sealing block, wherein the sealing block and the flexible inflatable block are respectively arranged on both sides of the oil cylinder and the piston rod, and are clamped and sealed with the inflatable pressure head, the oil cylinder and the piston rod to form an inflatable space.

[0014] The beneficial effects achieved by the present invention are that the present invention provides a universal pin-type inflation tool for inflating the oil cylinder and the piston rod, comprising a clamping tool, an inflation chamber and an inflation pressure head, wherein the inflation chamber is installed on the clamping tool, the inflation pressure head is pressed on the piston rod, and the inflation chamber is a flexible inflation block; the flexible inflation block, the inflation pressure head, the oil cylinder and the piston rod cooperate with each other to clamp and seal to form an inflation space, thereby achieving inflation conditions and realizing the inflation operation of the piston rod and the oil cylinder. Since the inflation chamber of the present application is a flexible inflation block, it cooperates with the inflation pressure head to enhance the covering property of the flexible inflation block on the piston rod and the oil cylinder, thereby effectively increasing its airtightness, thereby greatly improving the inflation efficiency and inflation effect. Moreover, through the action of the flexible inflation block, it is possible to effectively achieve sealing and inflation of piston rods and oil cylinders of different sizes. At the same time, due to the action of the inflation pressure head to press piston rods of different diameters, it is possible to achieve sealing and inflation of stepped piston rods and oil cylinders, thereby effectively improving the versatility of inflation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a schematic diagram of the usage status of the universal pin-type inflatable tooling provided in this application.

[0018] Figure 2 It is a structural schematic diagram of the inflation pressure head provided in this application.

[0019] Figure 3 It is a structural schematic diagram of the inflatable air chamber provided in this application.

[0020] Figure 4 It is a schematic diagram of the partial structure of the clamping tool provided in this application.

[0021] Reference numerals:

[0022] 1- clamping fixture, 2- inflation chamber, 3- inflation pressure head, 4- oil cylinder, 5- piston rod, 21- air needle hole, 31- chamfered inner hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention 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 only used to explain the present invention and are not intended to limit the present invention.

[0024] In order to effectively illustrate the embodiments of the present invention, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] like Figures 1 to 4 The relevant schematic diagram of the present invention provides a detailed description of the universal pin-type inflatable tooling disclosed in this application. Figure 1 As shown, the present application discloses a universal pin-type inflation tool for inflating the oil cylinder 4 and the piston rod 5. The universal pin-type inflation tool includes a clamping tool 1, an inflation chamber 2 and an inflation pressure head 3, wherein the inflation chamber 2 is installed on the clamping tool 1, and the inflation pressure head 3 is pressed on the piston rod 5. The inflation chamber 2 is a flexible inflation block, and the flexible inflation block, the inflation pressure head 3, the oil cylinder 4, and the piston rod 5 cooperate with each other to clamp and seal to form an inflation space.

[0026] Also refer to Figures 2 to 3 As shown, the diameter of the inflation head 3 is consistent with the outer diameter of the oil cylinder 4. A chamfered inner hole 31 is provided inside the inflation head 3. The diameter of the chamfered inner hole 31 is larger than the diameter of the piston rod 5, so that the piston rod 5 is inserted into the chamfered inner hole 31 and the inflation head 3 applies downward pressure to the piston rod 5, thereby bringing the piston rod 5 and the oil cylinder 4 closer to each other. Since the flexible inflatable block is made of flexible polyurethane material, the inflatable air chamber 2 has the characteristics of soft rubber. During use, the flexible inflatable block has a U-shaped structure. The lower end of the flexible inflatable block is interference fit with the oil cylinder 4. Since the inflatable air chamber 2 and the inflation head 3 are the same size, the upper end of the flexible inflatable block is interference fit with the inflation head 3. That is, Figure 1 As shown, after the inflation head 3 is sleeved on the piston rod 5, the outer diameters of the inflation head 3 and the oil cylinder 4 are the same, and they can be in close contact with the upper and lower ends of the flexible inflatable block at the same time. Under the action of the clamping tool 1, the upper and lower ends of the flexible inflatable block are squeezed to achieve interference fit with the outer walls of the inflation head 3 and the oil cylinder 4 respectively, so that under the action of the sealing block (not shown in the accompanying drawings), a closed space can be formed between the flexible inflatable block, the sealing block, the inflation head 3, the oil cylinder 4 and the piston rod 5, thereby facilitating the inflation operation of the piston rod 5 and the oil cylinder 4.

[0027] In the specific implementation process, Figure 3As shown, the inner wall of the U-shaped structure of the flexible inflatable block is provided with an air needle hole 21, and the air needle hole 21 is used to be sealed with an air needle, that is, a sealed air needle can be preset at this position, so that the air needle enters the enclosed space to perform inflation operations on the piston rod 5 and the oil cylinder 4.

[0028] Of course, in the specific implementation process, the sealing block and the flexible inflatable block are respectively arranged on both sides of the oil cylinder 4 and the piston rod 5 (such as Figure 1 The sealing block is positioned opposite the flexible inflatable block (not shown in the accompanying drawings), thereby clamping the sealing block, the inflation pressure head, the oil cylinder, and the piston rod to form a sealed inflation space. Specifically, the sealing block can be mounted on a frame for the inflation device. The sealing block has the same structure as the flexible inflatable block, and the end of the sealing block away from the piston rod 5 and the oil cylinder 4 is a sealed structure, thereby achieving the purpose of forming a sealed space in combination with the flexible inflatable block.

[0029] By adopting a universal pin-type inflation tool provided in an embodiment of the present application, an inflation pressure head 3 with the same outer diameter as the oil cylinder 4 is adopted, and the inflation pressure head 3 is provided with a chamfered inner hole 31, which is sleeved on the piston rod 5, and an inflation chamber 2 with a U-shaped structure is provided, and the inflation chamber 2 is a flexible inflation block, so that the flexible inflation block, the sealing block, and the inflation pressure head 3 form a closed inflation space for the oil cylinder 4 and the piston rod 5. On the one hand, it can effectively ensure the inflation efficiency and inflation effect. At the same time, due to the action of the inflation pressure head to press the piston rods of different diameters, it can achieve sealing and inflation of the stepped piston rod and the oil cylinder, thereby effectively improving the inflation versatility.

[0030] In the specific implementation process, you can also refer to Figure 4 As shown, the clamping fixture 1 is mainly used to clamp and fix the inflatable chamber 2. The clamping fixture 1 is mainly used to drive the inflatable chamber 2 forward and backward to inflate the oil cylinder 4 and piston rod 5. At the same time, the clamping fixture 1 is also connected to the inflatable cylinder to achieve a restart operation through the inflating needle. The specific structure of the clamping fixture 1 will not be elaborated here, and reference can be made to the relevant description of the prior art.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A universal pin-type inflation tool for inflating oil cylinders and piston rods, characterized in that: It includes a clamping tool, an inflatable air chamber and an inflatable pressure head, wherein: The inflatable air chamber is installed on the clamping fixture, the inflatable pressure head is pressed on the piston rod, and the inflatable air chamber is a flexible inflatable block; The flexible inflatable block, the inflatable pressure head, the oil cylinder and the piston rod cooperate with each other to clamp and seal to form an inflatable space.

2. The universal pin-type inflatable tool as claimed in claim 1, characterized in that: The diameter of the inflation pressure head is consistent with the outer diameter of the oil cylinder. A chamfered inner hole is provided inside the inflation pressure head, and the diameter of the chamfered inner hole is larger than the diameter of the piston rod.

3. The universal pin-type inflatable tool as claimed in claim 1, characterized in that: The flexible inflatable block is made of flexible polyurethane material, and the lower end of the flexible inflatable block is interference fit with the oil cylinder.

4. The universal pin-type inflatable tool as claimed in claim 3, characterized in that: The inflatable air chamber and the inflatable pressure head have the same size, and the upper end of the flexible inflatable block is interference-fitted with the inflatable pressure head.

5. The universal pin-type inflatable tool as claimed in claim 1, characterized in that: The flexible inflatable block is in a U-shaped structure, and an air needle hole is provided on the inner wall of the U-shaped structure. The air needle hole is used for sealing connection with the air needle.

6. The universal pin-type inflatable tool as claimed in claim 1, characterized in that: The tooling also includes a sealing block, which and a flexible inflatable block are respectively arranged on both sides of the oil cylinder and the piston rod, and are clamped and sealed with the inflatable pressure head, the oil cylinder, and the piston rod to form an inflatable space.

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