Stroke-controllable gas spring

Abstract

The utility model discloses a stroke-controllable gas spring, which relates to the technical field of gas springs and comprises a shell, a main body of the shell is of a hollow structure, inert gas is filled in the shell, a sealing ring A is fixedly connected in an opening in the right side of the shell, and a sealing ring B is fixedly connected in the opening in the right side of the shell. By arranging the piston A and the piston B, the distance between the piston B and the piston A is adjusted by rotating the screw rod, so that gas in the shell can be compressed and formed during use, and by arranging the adjusting block fixedly connected to the outer side of the screw rod, the gas in the shell can be compressed and formed during rotation adjustment. According to the air spring, the adjusting block can be clamped through tools such as a wrench, so that the screw rod can be rapidly rotated and driven when the air spring is adjusted, and compared with the situation that a traditional air spring needs to be frequently replaced, the overall convenience of the device can be remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas spring, concretely to a stroke controllable gas spring. BACKGROUND

[0002] The gas spring is a kind of industrial fittings that can support, buffer, brake, height adjustment and angle adjustment etc.It is composed of the following parts: pressure cylinder, piston rod, piston, sealing guide sleeve, filler (inert gas or oil-gas mixture), cylinder control element and cylinder control element (pointing to controllable gas spring) and joint etc., the existing patent a stroke controllable gas spring, patent publication number CN217713442U including gas spring, the outer tube of gas spring is equipped with the fracture, the fracture of gas spring outer tube is equipped with limit component, the outer wall of the outer tube of gas spring is equipped with a plurality of supports, and the part of each support is in contact with the outer tube of gas spring, the cylinder wall of the outer tube of gas spring is equipped with adjusting assembly.The utility model relates to the technical field of gas spring.The utility model in use gas spring, the both ends of gas spring outer tube are rotated by the limiting of limit component, so as to adjust the position of support in the outer tube of gas spring by adjusting assembly, thereby adjusting the limiting of support to gas spring piston, finally, the rod stretching stroke in gas spring is adjusted, and the use of gas spring is facilitated.

[0003] For the related technology in the above, the inventor believes that the following defects exist: when using the gas spring, the appropriate formed gas spring needs to be selected according to the different application environment to control the stroke of the connected support and other components, and when the gas spring stroke is replaced, the whole gas spring needs to be replaced, which is inconvenient, so we propose a stroke controllable gas spring to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides a stroke controllable gas spring, which solves the problem that the existing gas spring needs to be replaced as a whole when the stroke is replaced, which is inconvenient.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a stroke controllable gas spring, including shell, the main body of shell is internally hollow structure, and the inside of shell is filled with inert gas, the inside of the right side opening of shell is fixedly connected with sealing ring A, sealing ring A is annular structure, the top end of the outer circumferential surface of shell is fixedly connected with gas valve pipe, gas valve pipe is gas valve core structure, the inside of shell is inserted with piston A.

[0006] Preferably, the cross section of the piston A is circular structure, and the outer side of the piston A is fixedly connected with the sealing ring A of annular structure, and the diameter of the sealing ring A is larger than the diameter of the piston A.

[0007] Preferably, the right end surface of the piston A is fixedly connected with the guide rod, the guide rod is cylindrical structure, the right end of the guide rod extends to the right side of the shell, and the right end surface of the guide rod is fixedly connected with the connecting ring A.

[0008] Preferably, the main body of the connecting ring A is annular structure, and the piston B is inserted into the inside of the shell, and the structure of the piston B is consistent with the piston A.

[0009] Preferably, the outer side of the piston B is fixedly connected with the sealing ring C, the diameter of the sealing ring C is larger than the diameter of the piston B, and the left side of the piston B is provided with the recess hole.

[0010] Preferably, the inside of the recess hole provided on the left side of the piston B is rotatably connected with the connecting plate B, the left side of the connecting plate B is fixedly connected with the screw rod, and the outer circumferential surface of the screw rod is provided with the external thread.

[0011] Preferably, the left end surface of the screw rod is fixedly connected with the adjusting block, the left side of the adjusting block is fixedly connected with the connecting block, the outer side of the connecting block is sleeved with the connecting ring B, the main body of the connecting ring B is annular structure, and the connecting ring B is rotatably connected with the connecting block.

[0012] The utility model provides a stroke controllable type gas spring, has the following beneficial effects compared with prior art:

[0013] The stroke controllable type gas spring is provided with the piston A and the piston B, when the piston B is used, the distance between the piston B and the piston A can be adjusted by rotating the screw rod, so that the gas in the shell can be compressed and formed when being used, and fine adjustment operation can be carried out according to actual needs when being used.

[0014] The stroke controllable type gas spring is provided with the adjusting block fixedly connected on the outer side of the screw rod, when being rotated and adjusted, the adjusting block can be clamped by using tools such as wrench, so that the screw rod can be quickly rotated and driven when being adjusted, and compared with the traditional gas spring which needs to be frequently replaced, the convenience of the whole device can be remarkably improved. ACCURACY OF DRAWINGS

[0015] Figure 1 It is the front side view structure schematic drawing of the split and cut of the utility model gas spring.

[0016] Figure 2 It is the combination structure schematic drawing of the utility model gas spring.

[0017] Figure 3 It is the combination structure schematic view of the guide rod and the connecting ring A of the gas spring of the utility model;

[0018] Figure 4 It is the combination structure schematic view of the connecting ring B and the connecting block of the gas spring of the utility model;

[0019] Figure 5 It is the overhead structure schematic view of the gas spring of the utility model;

[0020] Figure 6 It is the left view structure schematic view of the gas spring of the utility model.

[0021] In the drawing: 1, shell; 101, sealing ring A; 102, valve pipe; 2, piston A; 201, sealing ring B; 202, guide rod; 203, connecting ring A; 3, connecting ring B; 301, connecting block; 302, adjusting block; 303, screw rod; 304, connecting plate; 305, piston B; 306, sealing ring C. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a stroke controllable gas spring, including shell 1, the main body of shell 1 is internally hollow structure, and the inside of shell 1 is filled with inert gas, the inside of right side opening of shell 1 is fixedly connected with sealing ring A 101, sealing ring A 101 is annular structure, the top end of the outer periphery of shell 1 is fixedly connected with valve pipe 102, valve pipe 102 is valve core structure, the inside of shell 1 is inserted with piston A 2;

[0024] By being fixedly connected with valve pipe 102 on the outer periphery of shell 1, it can be inflated and deflated to the inside of shell 1 when using.

[0025] Please refer to Figure 1 , Figure 5 The cross section of piston A 2 is circular structure, and the outside of piston A 2 is fixedly connected with annular structure sealing ring B 201, and the diameter of sealing ring B 201 is greater than the diameter of piston A 2;

[0026] By being fixedly connected with sealing ring B 201 on the outside of piston A 2, it can be sealed for piston A 2 when using.

[0027] Referring to Figure 4 , Figure 5 , the right end surface of the piston A2 is fixedly connected with a guide rod 202, the guide rod 202 is a cylindrical structure, the right end of the guide rod 202 extends out of the shell 1 to the right side, and the right end surface of the guide rod 202 is fixedly connected with a connecting ring A203;

[0028] By fixedly connecting the connecting ring A203 outside the guide rod 202, it can be connected with the external workpiece during use.

[0029] Referring to Figure 1 , Figure 3 , the main body of the connecting ring A203 is an annular structure, and the inside of the shell 1 is inserted with a piston B305, and the structure of the piston B305 is consistent with that of the piston A2;

[0030] By providing the piston B305 inside the shell 1, the space inside the shell 1 can be compressed during use.

[0031] Referring to Figure 2 , Figure 4 , the outer side of the piston B305 is fixedly connected with a sealing ring C306, the diameter of the sealing ring C306 is greater than that of the piston B305, and the left side of the piston B305 is provided with a recess hole;

[0032] By fixedly connecting the sealing ring C306 outside the piston B305, the piston B305 can be sealed during use.

[0033] Referring to Figure 1 , Figure 2 , the recess hole provided on the left side of the piston B305 is rotatably connected with a connecting plate B304, the left side of the connecting plate B304 is fixedly connected with a screw rod 303, and the outer periphery of the screw rod 303 is provided with external threads;

[0034] By providing the screw rod 303, it is driven in cooperation with the screw hole provided on the left side inside the shell 1.

[0035] Referring to Figure 3 , Figure 5 , the left end surface of the screw rod 303 is fixedly connected with an adjusting block 302, the left side of the adjusting block 302 is fixedly connected with a connecting block 301, the outer side of the connecting block 301 is sleeved with a connecting ring B3, the main body of the connecting ring B3 is an annular structure, and is rotatably connected with the connecting block 301;

[0036] By fixedly connecting the connecting block 301 to the left side of the adjusting block 302, it can be quickly connected with the connecting ring B3 during use.

[0037] In use, the gas spring is used to connect the connecting ring A203 fixedly connected to the outer side of the guide rod 202 and the connecting ring B3 rotatably connected to the outer side of the connecting block 301 to the article to be installed, and synchronously fill the inert gas into the inside of the gas valve pipe 102 arranged on the outer circumferential surface of the shell 1, so that the inert gas enters the inside of the shell 1 to be filled.

[0038] When it is necessary to control the ejection stroke of the guide rod 202 and the piston A2, for example, when it is necessary to reduce the rebound stroke of the guide rod 202, the adjusting block 302 fixedly connected to the outer side of the screw rod 303 can be held and rotated, and synchronously the screw rod 303 is extended into the inside of the shell 1, and the spacing between the current piston B305 and the piston A2 is adjusted, so as to achieve the purpose of adjusting the stroke, and when adjusting, the inert gas can be filled into the inside of the shell 1 or released according to actual needs.

[0039] In summary, the device is provided with the gas valve pipe 102 fixedly connected to the outer circumferential surface of the shell 1, so that it can realize the inflation and deflation operation in use.

[0040] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

Claims

1. A stroke-controllable gas spring, comprising a housing (1), characterized in that: The main body of the shell (1) is a hollow structure, and the interior of the shell (1) is filled with inert gas. A sealing ring A (101) is fixedly connected inside the opening on the right side of the shell (1). The sealing ring A (101) is an annular structure. A valve tube (102) is fixedly connected to the top of the outer peripheral surface of the shell (1). The valve tube (102) is a valve core structure. A piston A (2) and a piston B (305) are inserted inside the shell (1). The structure of piston B (305) is the same as that of piston A (2). A connecting plate B (304) is rotatably connected inside the recessed hole on the left side of piston B (305). A screw (303) is fixedly connected to the left side of the connecting plate B (304). An external thread is provided on the outer peripheral surface of the screw (303).

2. The stroke-controllable gas spring according to claim 1, characterized in that: The piston A (2) has a circular cross-section, and a ring-shaped sealing ring B (201) is fixedly connected to the outside of the piston A (2). The diameter of the sealing ring B (201) is larger than the diameter of the piston A (2).

3. A stroke-controllable gas spring according to claim 2, characterized in that: A guide rod (202) is fixedly connected to the right end face of the piston A (2). The guide rod (202) is a cylindrical structure. The right end of the guide rod (202) extends out of the housing (1) to the right, and a connecting ring A (203) is fixedly connected to the right end face of the guide rod (202).

4. A stroke-controllable gas spring according to claim 3, characterized in that: The main body of the connecting ring A (203) is a ring structure.

5. A stroke-controllable gas spring according to claim 1, characterized in that: A sealing ring C (306) is fixedly connected to the outside of the piston B (305). The diameter of the sealing ring C (306) is larger than the diameter of the piston B (305). A concave hole is opened on the left side of the piston B (305).

6. A stroke-controllable gas spring according to claim 1, characterized in that: An adjusting block (302) is fixedly connected to the left end face of the screw (303). A connecting block (301) is fixedly connected to the left side of the adjusting block (302). A connecting ring B (3) is sleeved on the outside of the connecting block (301). The main body of the connecting ring B (3) is a ring structure and is rotatably connected to the connecting block (301).

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