Anti-loosening mounting bracket for air cylinder

Abstract

The utility model relates to the technical field of cylinder support, and disclose an anti -loosening installation support of cylinder, including a plurality of base, base one end rotationally connected with middle swing axle, and the inner peripheral surface of middle swing axle is provided with the clamping slot, one end of middle swing axle is fixed with the plug -in block, and the other end of middle swing axle is provided with the slot, and the inner wall of slot and the surface of plug -in block are pasted, the end of middle swing axle is equipped with fixed module, and the lock module is set up in the place of middle swing axle close fixed module, the utility model discloses the middle swing axle is designed as two mirror image symmetry and can dismantle the combination split structure, and utilize the plug -in of plug -in block and slot, and the clamping of clamping slot and the surface of cylinder is connected with preliminary positioning and cooperation, so that when installing cylinder, need no longer dismantle cylinder body, can directly with two middle swing axle cover in the outside of cylinder and carry out the folding locking, has simplified the installation and the dismounting process, has improved maintenance efficiency, and when the local component wear can directly replace single middle swing axle, has reduced maintenance cost and equipment downtime.

Description

Technical Field

[0001] This utility model belongs to the field of cylinder bracket technology, and specifically relates to a cylinder anti-loosening mounting bracket. Background Technology

[0002] A cylinder center swing bracket is a mounting accessory used to fix and support a cylinder. Its core function is to stably mount the cylinder on the equipment or mechanical frame, allowing the cylinder to rotate and swing relative to each other, thereby adapting to different driving scenarios.

[0003] In the current technology, the reliability and ease of maintenance of the support structure in the cylinder installation of industrial equipment are directly related to the stability of the entire pneumatic system.

[0004] However, most existing cylinder supports are integral casting or welding structures. When installing or replacing cylinders, operators must disassemble one end of the cylinder body before inserting it into the central swing support. This process is time-consuming and laborious, reducing work efficiency.

[0005] Secondly, existing supports lack a modular design concept. When the support body wears or deforms due to long-term use, it must be replaced as a whole, which not only increases maintenance costs but also extends equipment downtime. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a cylinder anti-loosening mounting bracket.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a cylinder anti-loosening mounting bracket, comprising multiple bases, one end of which is rotatably connected to a central swing shaft, the inner circumferential surface of which is provided with a slot, the slot being engaged with the cylinder surface; two central swing shafts are grouped together, and the two central swing shafts are mirror-distributed and engaged; one end of the central swing shaft is fixed with an insert block, and the other end of the central swing shaft is provided with a slot, the inner wall of which is in contact with the surface of the insert block; a fixing module is provided at the end of the central swing shaft, and a locking module is provided near the fixing module of the central swing shaft.

[0008] Preferably, the fixing module includes: a pressing cover, which is rotatably connected to the inner wall of the central swing shaft; a trapezoidal member, one end of which is snapped into one side of the pressing cover; an eccentric circular member, one side of which is fixed to the inclined surface of the trapezoidal member; and a force-bearing circular groove, which is formed on the surface of the insert block; the surface of the eccentric circular member is in contact with the inner wall of the force-bearing circular groove.

[0009] Preferably, the eccentric circular component has anti-slip grooves formed on its circumferential array.

[0010] Preferably, the side of the insert block away from the force-bearing groove is set as an inclined surface, and the inclined end of the insert block has friction-increasing grooves arranged in a linear array.

[0011] Preferably, the pressing cover has symmetrical pry grooves on one side.

[0012] Preferably, the locking module includes: a reserved groove, wherein the reserved groove is provided on the inner wall of the central swing shaft near the fixing module; a locking block, wherein both ends of the locking block are rotatably connected to the inner wall of the reserved groove through shafts, and both ends of the shafts of the locking block are provided with retaining springs; and an abutment groove, wherein the abutment groove is provided at one end of the reserved groove near the rotating shaft of the locking block.

[0013] Preferably, the middle swing shaft has symmetrically provided insertion holes at one end near the fixed module, and the other end of the middle swing shaft is symmetrically fitted with positioning posts.

[0014] Preferably, one end of the positioning post is rounded, and a fixing ring is fixed to the circumference of the other end of the positioning post, with one side of the fixing ring fixed to one end of the central swing shaft.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. This utility model designs the central swing shaft as two mirror-symmetrical and detachable split structures, and uses the insertion of the plug and slot and the snap-fit ​​of the slot and cylinder surface for initial positioning and connection. This eliminates the need to disassemble the cylinder body when installing the cylinder. The two central swing shafts can be directly wrapped around the outside of the cylinder and locked together, which simplifies the installation and disassembly process, improves maintenance efficiency, and allows for direct replacement of individual central swing shafts when local parts are worn, reducing maintenance costs and equipment downtime.

[0017] 2. This utility model uses a fixed module to drive the trapezoidal part and the eccentric circular part by rotating the pressing cover, so that the eccentric circular part is pressed tightly into the force-bearing circular groove of the insert, generating a large normal locking force, which ensures the tightness of the connection between the two central swing shafts. The anti-slip groove on the circumference of the eccentric circular part further increases the friction and prevents loosening.

[0018] 3. The locking module of this utility model achieves anti-loosening through a rotatable locking block. When the pressing cover of the fixed module rotates to the locking position, it will contact and press the locking block, causing it to rotate and be stored in the reserved groove. When the pressing cover passes the locking block, the locking block will rotate back to the abutting groove position by the torque of the snap ring on its rotating shaft, forming mechanical interference, which effectively prevents the pressing cover from turning back and loosening due to equipment vibration, providing double insurance.

[0019] 4. This utility model sets an insertion hole at one end of the central swing shaft and a corresponding positioning pin at the other end. When the two central swing shafts are closed, the positioning pin can be accurately inserted into the insertion hole, which realizes the precise positioning of the mold closing and ensures the concentricity of the two half shafts and the supported cylinder. The round end design of one end of the positioning pin is easy to insert, while the fixing ring at the other end enhances the connection strength between the positioning pin and the central swing shaft body.

[0020] 5. The inclined surface design of the insert block improves the strength of the insert block under pressure and prevents it from breaking under pressure. The friction-enhancing groove on it increases the friction of the mating surface when the insert block is under pressure, further improving the stability of the connection. The pry groove on the press cover provides convenience for applying force during disassembly. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the fixing module of this utility model;

[0023] Figure 3 This is a schematic diagram of the insert block of this utility model;

[0024] Figure 4 This is a schematic diagram of the positioning post of this utility model;

[0025] Figure 5 This is a schematic diagram of the press-fit cap of this utility model;

[0026] Figure 6 This is a cross-sectional view of the trapezoidal component of this utility model;

[0027] Figure 7 This is a cross-sectional view of the locking block of this utility model.

[0028] Figure label:

[0029] 1. Base; 101. Central swing shaft; 102. Slot;

[0030] 2. Insert block; 201. Slot;

[0031] 3. Fixing module; 301. Press-fit cover; 302. Trapezoidal component; 303. Eccentric circular component; 304. Force-bearing circular groove;

[0032] 4. Anti-slip grooves;

[0033] 5. Friction-enhancing grooves;

[0034] 6. Prying out grooves;

[0035] 7. Locking module; 701. Reserved slot; 702. Locking block; 703. Abutment slot;

[0036] 8. Socket; 801. Positioning pin;

[0037] 9. Fixing ring. Detailed Implementation

[0038] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0039] The specific embodiments of this utility model are described below with reference to the accompanying drawings:

[0040] Example 1:

[0041] refer to Figures 1-7 The cylinder anti-loosening mounting bracket includes multiple bases 1. One end of each base 1 is rotatably connected to a central swing shaft 101. The inner circumferential surface of the central swing shaft 101 is provided with a slot 102, which is engaged with the cylinder surface. Two central swing shafts 101 are grouped together, and the two central swing shafts 101 are mirror-distributed and engaged with each other. One end of the central swing shaft 101 is fixed with an insert block 2, and the other end of the central swing shaft 101 is provided with a slot 201, the inner wall of which is in contact with the surface of the insert block 2. A fixing module 3 is provided at the end of the central swing shaft 101, and a locking module 7 is provided near the fixing module 3.

[0042] Specifically, by designing the central swing shaft 101 as two mirror-symmetrical components and using the plug 2 at one end to engage with the slot 201 at the other end, a split connection is constructed. This structure allows the bracket to be installed and locked radially from the cylinder without axially inserting it from the cylinder end. Thus, the cylinder does not need to be disassembled when installing the central swing bracket, simplifying the process of installing or replacing the cylinder on the equipment and laying the foundation for quick disassembly and maintenance.

[0043] The fixing module 3 includes: a pressing cover 301, which is rotatably connected to the inner wall of the central swing shaft 101; a trapezoidal member 302, one end of which is snapped into one side of the pressing cover 301; an eccentric circular member 303, one side of which is fixed to the inclined surface of the trapezoidal member 302; and a force-bearing circular groove 304, which is formed on the surface of the insert block 2; the surface of the eccentric circular member 303 is in contact with the inner wall of the force-bearing circular groove 304.

[0044] The eccentric circular part 303 has anti-slip grooves 4 on its circumferential array.

[0045] Specifically, the locking mechanism is formed by the cooperation of the pressing cover 301, trapezoidal part 302, eccentric circular part 303 of the fixed module 3 and the force-bearing circular groove 304 on the insert block 2. When the operator rotates the pressing cover 301, it can drive the eccentric circular part 303 to press into the force-bearing circular groove 304. When rotating, the eccentric circular part 303 further causes the insert block 2 to move inward and fit tightly. It also uses the eccentric principle to generate a strong normal locking force to ensure that the two central swing shafts 101 are tightly connected and prevent loosening. At the same time, by opening the anti-slip groove 4 on the circumference of the eccentric circular part 303, the friction between it and the contact surface of the force-bearing circular groove 304 is increased, which further prevents relative sliding or rotation that may occur in the vibration environment and enhances the reliability of locking.

[0046] The side of the insert 2 away from the force-bearing circular groove 304 is set as an inclined surface, and the inclined end of the insert 2 is linearly arrayed with friction-increasing grooves 5.

[0047] Specifically, by setting one side of the insert 2 as an inclined surface and opening the friction-enhancing groove 5, the bending strength of the insert 2 itself is enhanced by the inclined surface structure, and the roughness of the contact surface is increased by the friction-enhancing groove 5 when locking, thereby improving the static friction and overall stability of the connection.

[0048] The pressing cover 301 has symmetrical pry grooves 6 on one side.

[0049] Specifically, by symmetrically opening pry grooves 6 on the pressing cover 301, a force point is provided for workers to use tools, such as screwdrivers, to pry the pressing cover 301 to release the locked state, making the disassembly operation more labor-saving and convenient.

[0050] The locking module 7 includes: a reserved groove 701, which is provided on the inner wall of the central swing shaft 101 near the fixed module 3; a locking block 702, which is rotatably connected to the inner wall of the reserved groove 701 at both ends by shafts, and each end of the shaft of the locking block 702 is provided with a retaining spring; and an abutment groove 703, which is provided at one end of the reserved groove 701 near the rotating shaft of the locking block 702.

[0051] Specifically, the locking module 7 uses a pre-drilled slot 701, a rotatable locking block 702, and a contact groove 703 to create an anti-reverse structure for the fixing module 3. When the pressing cover 301 rotates to the locking position, the locking block 702 automatically resets under the action of the snap ring and engages with the contact groove 703, forming a mechanical block. This effectively prevents the pressing cover 301 from accidentally reversing and loosening due to equipment vibration, providing additional safety. The contact groove 703 provides outward support to the locking block 702. When the pressing cover 301 reverses and contacts the locking block 702, the end of the locking block 702 near the rotating shaft is held in place by the contact groove 703, preventing the locking block 702 from being subjected to excessive force and damaging the snap ring.

[0052] The central swing shaft 101 has symmetrically opened insertion holes 8 at one end near the fixed module 3, and the other end of the central swing shaft 101 is symmetrically snapped with positioning pins 801.

[0053] One end of the positioning post 801 is rounded, and a fixing ring 9 is fixed on the circumference of the other end of the positioning post 801. One side of the fixing ring 9 is fixed to one end of the central swing shaft 101.

[0054] Specifically, by setting an insertion hole 8 on one side of the swing shaft 101 and a corresponding positioning post 801 on the other side, the positioning post 801 is precisely inserted into the insertion hole 8 when the two half shafts are closed, achieving precise positioning during connection and ensuring the concentricity of the two parts and the supported cylinder, thus ensuring installation accuracy. At the same time, by setting one end of the positioning post 801 to a round end, it is easy to guide the insertion; the other end is reinforced and fixed to the body of the swing shaft 101 through a fixing ring 9, which significantly enhances the structural strength and connection reliability of the positioning post 801 and prevents it from being damaged or loosened under frequent disassembly or stress.

[0055] Example 2:

[0056] refer to Figures 1-7 The staff used the structure disclosed in this utility model in an automation upgrade project of an automobile welding production line;

[0057] Technicians used the anti-loosening mounting bracket of this utility model to quickly install the SMC brand CD85N series cylinder with a diameter of 50 mm.

[0058] This cylinder drives the welding torch positioning mechanism, operating at a frequency of 30 times per minute, with a vibration environment acceleration of up to 2.5g. During installation, two QT450 ductile iron bases 1 are first fixed to the equipment frame with M12 bolts, spaced 300 mm apart. A set of 42CrMo material central swing shafts 101 are taken, with an inner circumferential groove 102 diameter of 50.2 mm, which fits clearance with the cylinder body. The two central swing shafts 101 are radially wrapped around the cylinder, allowing the 20Cr steel insert 2 of the left central swing shaft to be guided into the slot 201 of the right central swing shaft at a 15-degree angle. Simultaneously, the two 8 mm diameter positioning pins 801 of the right central swing shaft are precisely inserted into the insertion holes 8 of the left central swing shaft under the reinforcement connection of the fixing ring 9, achieving an axial positioning error of less than 0.1 mm.

[0059] Then, the 40Cr steel pressing cover 301 is rotated clockwise, and the trapezoidal part 302 that it engages pushes the eccentric circular part 303 of GCr15 bearing steel into the force-bearing circular groove 304 on the surface of the insert 2. The eccentricity of 1.5 mm generates 800 N locking force when rotated 60 degrees. The 0.3 mm deep anti-slip groove 4 on the circumference of the eccentric circular part 303 and the friction-increasing groove 5 on the inclined surface of the insert 2 together form an anti-loosening structure.

[0060] After the pressing cover 301 passes the locking block 702 of the locking module 7, the locking block automatically resets and engages with the contact groove 703 under the action of the Si-Mn spring steel retaining ring, forming a mechanical anti-reverse mechanism. The entire installation process takes only 2 minutes, which is four times more efficient than the traditional axial insertion method.

[0061] When the worn central pivot shaft needs to be replaced after 2 million consecutive cycles, the bracket can be separated simply by inserting a screwdriver into the pry slot 6 of the pressure cover 301 and rotating it counterclockwise. There is no need to disassemble the cylinder piping, reducing maintenance time from 45 minutes to 8 minutes and significantly reducing production line downtime losses. The bracket did not loosen during a vibration test at a frequency of 25 Hz, ensuring that the welding robot's repeatability accuracy remains within ±0.05 mm.

[0062] The working principle of this utility model:

[0063] Step 1: During installation, there is no need to disassemble the cylinder. The staff first wraps the two mirror-symmetrical central swing shafts 101 from the radial sides of the cylinder so that the cylinder body fits into the grooves 102 on the inner surface of the central swing shafts 101.

[0064] Align the insert 2 of one side of the central swing shaft 101 with the slot 201 of the other side of the central swing shaft 101, and then close the two half-shafts. During the closing process, the positioning pin 801 on one side of the central swing shaft 101 is inserted into the insertion hole 8 of the other side of the central swing shaft 101. This ensures the concentricity of the two half-shafts and guarantees the accurate position of the supported cylinder axis. The retaining ring 9 enhances the connection strength of the positioning pin.

[0065] Step 2: After the two half-shafts are joined, the worker presses the pressing cover 301 to rotate. The rotation of the pressing cover 301 causes the trapezoidal part 302, which is engaged with it, to rotate synchronously. The inclined surface of the trapezoidal part 302 will push the eccentric circular part 303 to move towards the insertion block 2.

[0066] During the rotation process, the eccentric circular part 303 gradually presses its eccentric profile into the force-bearing circular groove 304 on the surface of the insert block 2. Utilizing the eccentric principle, when it rotates to a certain position, it will generate a huge radial clamping force, which will tightly lock the two central swing shafts 101 together.

[0067] The anti-slip groove 4 on the circumference of the eccentric circular part 303 increases the friction between it and the force-bearing circular groove 304, preventing loosening under vibration. At the same time, the friction-enhancing groove 5 on the insert 2 further enhances the static friction of the mating surface.

[0068] Step 3: When the pressing cover 301 rotates to the fully locked position, it contacts and passes over the locking block 702 in the locking module 7. The two ends of the locking block 702 are installed in the reserved slots 701 via shafts with snap rings. After the pressing cover 301 passes over it, the locking block 702 automatically rotates back to its original position under the torque of the snap rings, and its end engages in the abutment groove 703.

[0069] At this time, the locking block 702, supported by the abutment groove 703, forms mechanical interference with the rotation path of the pressing cover 301 on its side. If the pressing cover 301 attempts to rotate in the opposite direction due to vibration, it will be blocked by the locking block 702, thereby effectively preventing loosening.

[0070] Step 4: When disassembly is required, the staff should first press the locking block 702 to rotate it into the reserved slot 701, thereby releasing the mechanical restriction on the pressing cover 301.

[0071] Then insert the tool into the pry groove 6, rotate the pressing cover 301 in the opposite direction, drive the eccentric circular part 303 out of the force-bearing circular groove 304, release the locking force. At this time, the locking force between the two central swing shafts 101 disappears, and the two can be easily separated, thereby removing the bracket from the cylinder.

[0072] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0073] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cylinder anti-loosening mounting bracket, comprising multiple bases (1), characterized in that: One end of the base (1) is rotatably connected to a central swing shaft (101). A slot (102) is provided on the inner circumferential surface of the central swing shaft (101). The slot (102) is engaged with the cylinder surface. The two central swing shafts (101) are in a group, and the two central swing shafts (101) are engaged in a mirror image distribution. One end of the central swing shaft (101) is fixed with a plug (2), and the other end of the central swing shaft (101) is provided with a slot (201), the inner wall of the slot (201) is in contact with the surface of the plug (2); The middle swing shaft (101) is provided with a fixing module (3) at its end, and a locking module (7) is provided near the fixing module (3) on the middle swing shaft (101).

2. The anti-loosening mounting bracket for a cylinder according to claim 1, characterized in that: The fixed module (3) includes: A press-fit cover (301) is rotatably connected to the inner wall of the central swing shaft (101); A trapezoidal component (302), one end of which is snapped into one side of the pressing cover (301); An eccentric circular component (303) is fixed on one side to the inclined surface of the trapezoidal component (302); Force-receiving circular groove (304) is formed on the surface of the insert (2); The surface of the eccentric circular part (303) is in contact with the inner wall of the force-bearing circular groove (304).

3. The anti-loosening mounting bracket for a cylinder according to claim 2, characterized in that: The eccentric circular component (303) has anti-slip grooves (4) arranged in a circular array on its circumference.

4. The anti-loosening mounting bracket for a cylinder according to claim 2, characterized in that: The side of the insert (2) away from the force-bearing circular groove (304) is set as an inclined surface, and the inclined end of the insert (2) is provided with friction-increasing grooves (5) in a linear array.

5. The anti-loosening mounting bracket for a cylinder according to claim 2, characterized in that: The pressing cover (301) has symmetrical pry grooves (6) on one side.

6. The anti-loosening mounting bracket for a cylinder according to claim 1, characterized in that: The locking module (7) includes: A reserved slot (701) is provided on the inner wall of the central swing shaft (101) near the fixed module (3). Locking block (702), the two ends of the locking block (702) are rotatably connected to the inner wall of the reserved groove (701) through shafts, and both ends of the shafts of the locking block (702) are provided with snap rings; The abutment groove (703) is opened at one end of the reserved groove (701) near the rotating shaft of the locking block (702).

7. The anti-loosening mounting bracket for a cylinder according to claim 1, characterized in that: The central swing shaft (101) has symmetrically opened insertion holes (8) at one end near the fixed module (3), and the other end of the central swing shaft (101) is symmetrically snapped with positioning pins (801).

8. The anti-loosening mounting bracket for a cylinder according to claim 7, characterized in that: One end of the positioning post (801) is rounded, and a fixing ring (9) is fixed on the circumference of the other end of the positioning post (801). One side of the fixing ring (9) is fixed to one end of the central swing shaft (101).

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