Gas spring with dustproof mechanism

Abstract

The utility model discloses a gas spring with a dustproof mechanism, and relates to the technical field of gas springs. Comprising a gas spring body, a cleaning mechanism used for dust protection is arranged on the gas spring body, the cleaning mechanism comprises a buffer assembly, and when a piston rod and the gas spring body stretch out and draw back through a piston block, the piston block slides on the inner wall of the gas spring body along a positioning sliding groove through a positioning block; linear motion of the piston block in the stretching and retracting process is ensured, friction and abrasion caused by shaking or deviation are avoided, the overall stability of the gas spring is improved, then when the piston block stretches and retracts and makes contact with the two ends of the interior of the gas spring body, the buffering ring and the piston block have a certain buffering effect through the damping spring and the damping supporting rod, and therefore the buffering effect is improved. The impact of the piston block on the gas spring body in the stretching and retracting process is effectively reduced, abrasion is reduced, and therefore the service life of the gas spring is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas spring technical field, concretely is a gas spring with dustproof mechanism. BACKGROUND

[0002] 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, cylinder control element and cylinder control element outside and joint etc. Principle is in the closed pressure cylinder fills in inert gas or oil gas mixture, makes the pressure in cavity higher than several or several ten times of atmospheric pressure, utilizes the cross-sectional area of piston rod to be less than the cross-sectional area of piston and thus generates the pressure difference to realize the movement of piston rod.

[0003] The reference patent (publication number: CN215059080U;Publication date: 2021-12-07) discloses a gas spring with dustproof mechanism in the field of gas spring, including cylinder body, the lower part in cylinder body is installed with piston rod, piston rod and cylinder body sliding connection, piston rod upper end is installed with sliding block, piston rod lower end is installed with lower bottom plate, cylinder body upper end is installed with cover plate, cover plate upper end middle part is installed with connecting column, connecting column lower end is communicated with cylinder body, connecting column front end middle part is installed with air inlet pipe, connecting column upper end is installed with upper bottom plate.

[0004] Based on the above patent, the outer wall of the piston rod is easy to accumulate dust and impurities in the long-term use process, these dust and impurities not only can affect the appearance of gas spring, more likely to enter the interior of gas spring along with the sliding of piston rod, cause the wear and tear of internal structure, even cause the jam or failure of gas spring, and the piston block is easy to appear the shaking or deviation in the process of stretching and retracting due to the lack of effective positioning and guiding mechanism in the process of stretching and retracting of gas spring, cause the friction and wear and tear with the inner wall of gas spring body, then the piston block and the both ends of gas spring body are contacted, due to the lack of effective buffer mechanism, piston block can generate greater impact force to gas spring body, cause the wear and tear to aggravate, even possibly damage the internal structure of gas spring, therefore, the utility model provides a gas spring with dustproof mechanism. UTILITY MODEL CONTENTS

[0005] The utility model provides a gas spring with dustproof mechanism, solves that the outer wall of piston rod is easy to gather dust and impurity in the long -term use process of traditional gas spring, these dust and impurity not only can influence the appearance of gas spring, more possible with the sliding of piston rod enters the inside of gas spring, causes the abrasion of internal structure, even leads to the problem of gas spring's jam or failure, and the piston block is easy to appear the wobble or deviation in the telescopic process because of lacking effective positioning and guide mechanism in the telescopic process of gas spring in piston rod, leads to the friction and abrasion with the inner wall of gas spring main part, then the piston block and the inside two end contact of gas spring main part, because of lacking effective buffer mechanism, the piston block can produce greater impact force to gas spring main part, leads to the abrasion aggravation, even can damage the internal structure of gas spring.

[0006] In order to realize above-mentioned purpose, the utility model discloses a gas spring with dustproof mechanism, including gas spring main part, the gas spring main part is provided with the cleaning mechanism for dust protection, and the cleaning mechanism includes:

[0007] Buffer assembly, including the inside of gas spring main part is provided with the piston rod through positioning assembly connection, one end of the piston rod in the inside of gas spring main part is fixedly connected with piston block, and the both sides wall of piston block is provided with the buffer ring through the elastic component connection;

[0008] Cleaning assembly, including the front end of gas spring main part is provided with the gear ring through drive assembly connection, the inside of gear ring is provided with the cleaning ring through installation component connection.

[0009] Preferably, the positioning assembly includes a positioning block fixedly connected to the outer wall of the piston block, the inner wall of the gas spring main body is provided with a positioning sliding groove corresponding to the positioning block, and the piston rod is fixedly connected to the side wall of the piston block.

[0010] Preferably, the elastic component includes a shock-absorbing spring fixedly connected to the two side walls of the piston block, the buffer ring is fixedly connected to the end of the shock-absorbing spring, the inner ring of the shock-absorbing spring is provided with a damping strut, and one end of the damping strut is fixedly connected to the piston block.

[0011] Preferably, the drive assembly includes a motor fixedly connected to the upper end of the gas spring main body, the output end of the motor is fixedly connected with a drive gear, the front end of the gas spring main body is provided with a bearing, the gear ring is rotatably connected to the side wall of the bearing, and the gear ring is in meshing connection with the drive gear.

[0012] Preferably, the installation assembly comprises a positioning hole opened in the inside of the gear ring, a positioning rod slidably connected in the inside of the positioning hole, an installation plate fixedly connected to one end of the positioning rod, and a cleaning ring fixedly connected to the inner wall of the installation plate.

[0013] Preferably, the upper end of the gas spring body is provided with an air inlet, and the outer wall of the air inlet is threadedly connected with a threaded cover.

[0014] Beneficial effects

[0015] The utility model provides a gas spring with dustproof mechanism compares with prior art has the following beneficial effects:

[0016] First, the driving gear provided by the utility model is rotated by a motor, the gear ring is in meshing transmission with the driving gear, thereby driving the gear ring to rotate on the gas spring body through the bearing, the cleaning ring provided is inserted into the positioning hole on the gear ring through the positioning rod and the installation plate, the rotation of the bolt realizes the connection of the cleaning ring and the gear ring, when the gear ring rotates, the outer wall of the piston rod can be cleaned, when the piston rod is retracted after use, the dust on the outer wall of the piston rod can be effectively cleaned, the dust is prevented from entering the gas spring through the sliding of the piston rod, the inside of the gas spring is kept clean, the abrasion is reduced, the service life of the gas spring is prolonged, and the jamming or failure caused by dust and impurities is avoided.

[0017] Secondly, when the piston rod is retracted and extended through the piston block and the gas spring body, the piston block slides along the positioning block along the positioning sliding groove on the inner wall of the gas spring body, the linear motion of the piston block in the retraction process is ensured, the friction and abrasion caused by shaking or deviation are avoided, the overall stability of the gas spring is improved, when the piston block retracts and extends, the buffer ring has a certain buffering effect on the piston block through the damping spring and the damping support rod when the piston block contacts the two ends of the gas spring body, the impact of the piston block on the gas spring body in the retraction process is effectively reduced, the abrasion is reduced, and the service life of the gas spring is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a gas spring body sectional structure schematic view of the utility model;

[0020] Figure 3 It is an enlarged connection structure schematic view of A of the utility model;

[0021] Figure 4 It is an enlarged connection structure schematic view of B of the utility model;

[0022] Figure 5 The utility model discloses a cleaning ring connecting structure schematic view.

[0023] In the figure: 1, air spring main body;101, air inlet;102, screw cover;2, piston rod;201, piston block;202, locating block;203, locating sliding slot;3, damping spring;301, damping support pole;302, buffer ring;4, motor;401, driving gear;5, bearing;501, gear ring;502, mounting plate;503, cleaning ring;6, locating hole;601, locating rod;602, bolt. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of air spring with dustproof mechanism, including air spring main body 1, air spring main body 1 is provided with the cleaning mechanism for dust protection, cleaning mechanism includes:

[0026] Buffering assembly, including the inside of air spring main body 1 is provided with piston rod 2 connected by positioning assembly, one end of piston rod 2 in the inside of air spring main body 1 is fixedly connected with piston block 201, the two side walls of piston block 201 are provided with buffer ring 302 connected by elastic component;

[0027] Cleaning assembly, including the front end of air spring main body 1 is provided with gear ring 501 connected by driving assembly, the inside of gear ring 501 is provided with cleaning ring 503 connected by mounting assembly.

[0028] In the preferred implementation, the positioning assembly includes a positioning block 202 fixedly connected to the outer wall of the piston block 201, the inner wall of the gas spring body 1 is provided with a positioning sliding groove 203 corresponding to the positioning block 202, the piston rod 2 is fixedly connected to the side wall of the piston block 201, the elastic assembly includes a damping spring 3 fixedly connected to the two side walls of the piston block 201, a buffer ring 302 is fixedly connected to the end of the damping spring 3, the inner ring of the damping spring 3 is provided with a damping support rod 301, one end of the damping support rod 301 is fixedly connected to the piston block 201, when the piston rod 2 extends and retracts through the piston block 201 and the gas spring body 1, the piston block 201 slides along the positioning sliding groove 203 in the inner wall of the gas spring body 1, ensuring the linear motion of the piston block 201 during extension and retraction, avoiding friction and wear caused by shaking or deviation, and improving the overall stability of the gas spring. Then, when the piston block 201 extends and retracts, the buffer ring 302 performs a certain buffering action with the piston block 201 through the damping spring 3 and the damping support rod 301 when the two ends of the gas spring body 1 are contacted, effectively reducing the impact of the piston block 201 on the gas spring body 1 during extension and retraction, reducing wear, thereby prolonging the service life of the gas spring.

[0029] In the preferred implementation, the driving assembly includes a motor 4 fixedly connected to the upper end of the gas spring body 1, the output end of the motor 4 is fixedly connected with a driving gear 401, the front end of the gas spring body 1 is provided with a bearing 5, a gear ring 501 is rotatably connected to the side wall of the bearing 5, the gear ring 501 is in meshing connection with the driving gear 401, the driving gear 401 is arranged to rotate through the motor 4, and the gear ring 501 is in meshing transmission with the driving gear 401, thereby driving the gear ring 501 to rotate on the gas spring body 1 through the bearing 5.

[0030] It is further explained that the motor 4 is a prior art, which can be selected with a model of N20, and no more elaboration is made.

[0031] In the preferred implementation, the installation assembly includes the inside of the gear ring 501 is provided with a positioning hole 6, the inside of the positioning hole 6 is slidably connected with a positioning rod 601, one end of the positioning rod 601 is fixedly connected with a mounting plate 502, the cleaning ring 503 is fixedly connected to the inner wall of the mounting plate 502, the inside of the mounting plate 502 is connected with a bolt 602 connected with the gear ring 501, and then the cleaning ring 503 is inserted into the positioning hole 6 on the gear ring 501 through the mounting plate 502 and the positioning rod 601, and the bolt 602 is rotated to realize the connection of the cleaning ring 503 and the gear ring 501. When the gear ring 501 rotates, the outer wall of the piston rod 2 can be cleaned, ensuring that the dust on the outer wall of the piston rod 2 can be effectively cleaned when the piston rod 2 is retracted after use, preventing dust from entering the gas spring due to the sliding of the piston rod 2, thereby maintaining the cleanliness of the gas spring, reducing such wear and tear, thereby prolonging the service life of the gas spring and preventing jamming or failure caused by dust and impurities.

[0032] In the preferred implementation, the upper end of the gas spring body 1 is provided with an air inlet 101, which allows gas to enter the inside of the gas spring body 1 to drive the piston rod 2 to perform extension and retraction movement. The outer wall of the air inlet 101 is threadedly connected with a threaded cover 102, and the threaded cover 102 is threadedly connected with the outer wall of the air inlet 101 to form a tight closed structure, effectively preventing external dust, impurities, etc. from entering the inside of the gas spring through the air inlet 101, thereby maintaining the cleanliness of the inside of the gas spring.

[0033] Meanwhile, the contents not described in detail in the specification are all prior art known to those skilled in the art.

[0034] In operation, the upper end of the gas spring body 1 is provided with an air inlet 101, which allows gas to enter the inside of the gas spring body 1 to drive the piston rod 2 to perform extension and retraction movement. Then, when the piston rod 2 extends and retracts through the piston block 201 and the gas spring body 1, the piston block 201 slides along the positioning sliding groove 203 on the inner wall of the gas spring body 1 through the positioning block 202, ensuring the linear motion of the piston block 201 during extension and retraction, avoiding friction and wear caused by shaking or deviation, and improving the overall stability of the gas spring. When the piston block 201 extends and retracts and contacts the inside of the gas spring body 1 at both ends, the buffer ring 302 performs a certain buffering action with the piston block 201 through the damping spring 3 and the damping support rod 301, effectively reducing the impact of the piston block 201 on the gas spring body 1 during extension and retraction;

[0035] The driving gear 401 is rotated by the motor 4, and the gear ring 501 is in meshing transmission with the driving gear 401, so as to drive the gear ring 501 to rotate on the air spring body 1 through the bearing 5, then the cleaning ring 503 is inserted into the positioning hole 6 on the gear ring 501 through the mounting plate 502 and the positioning rod 601, and the rotating bolt 602 is used to connect the cleaning ring 503 and the gear ring 501, when the gear ring 501 rotates, the outer wall of the piston rod 2 can be cleaned, so that the dust on the outer wall of the piston rod 2 can be effectively cleaned when the piston rod 2 is retracted after use, and the dust is prevented from entering the air spring with the sliding of the piston rod 2, so that the inside of the air spring is kept clean, the abrasion is reduced, the service life of the air spring is prolonged, and the jamming or failure caused by dust and impurities is avoided.

[0036] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0037] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A gas spring having a dust-proof mechanism, comprising a gas spring main body (1), characterized in that: The gas spring body (1) is provided with a cleaning mechanism for dust protection, and the cleaning mechanism comprises: The buffer assembly comprises a piston rod (2) connected by a positioning assembly in the gas spring body (1), one end of the piston rod (2) in the gas spring body (1) is fixedly connected with a piston block (201), and both side walls of the piston block (201) are provided with a buffer ring (302) connected by an elastic assembly. The cleaning assembly comprises a gear ring (501) connected by a driving assembly at the front end of the gas spring body (1), and the inside of the gear ring (501) is provided with a cleaning ring (503) connected by a mounting assembly.

2. The gas spring with dustproof mechanism according to claim 1, characterized in that: The positioning assembly comprises a positioning block (202) fixedly connected to the outer wall of the piston block (201), and the inner wall of the gas spring body (1) is provided with a positioning sliding groove (203) corresponding to the positioning block (202), and the piston rod (2) is fixedly connected to the side wall of the piston block (201).

3. The gas spring with dustproof mechanism according to claim 1, characterized in that: The elastic assembly comprises a shock absorbing spring (3) fixedly connected to the two side walls of the piston block (201), and the buffer ring (302) is fixedly connected to the end of the shock absorbing spring (3), and the inner ring of the shock absorbing spring (3) is provided with a damping support rod (301), and one end of the damping support rod (301) is fixedly connected with the piston block (201).

4. The gas spring with dustproof mechanism according to claim 1, characterized in that: The driving assembly comprises a motor (4) fixedly connected to the upper end of the gas spring body (1), the output end of the motor (4) is fixedly connected with a driving gear (401), the front end of the gas spring body (1) is provided with a bearing (5), the gear ring (501) is rotatably connected to the side wall of the bearing (5), and the gear ring (501) is in meshing connection with the driving gear (401).

5. The gas spring with dustproof mechanism according to claim 1, characterized in that: The mounting assembly comprises a positioning hole (6) formed in the inside of the gear ring (501), a positioning rod (601) is slidably connected in the inside of the positioning hole (6), one end of the positioning rod (601) is fixedly connected with a mounting plate (502), the cleaning ring (503) is fixedly connected to the inner wall of the mounting plate (502), and the inside of the mounting plate (502) penetrates a bolt (602) connected with the gear ring (501).

6. The gas spring with dustproof mechanism according to claim 1, characterized in that: The upper end of the gas spring body (1) is provided with an air inlet (101), and the outer wall of the air inlet (101) is threadedly connected with a threaded cover (102).

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