Floor spring oil injection mechanism
By designing an adjustable oil injection mechanism, the problems of damage and oil leakage during the up-and-down movement of the oil injection nozzle were solved, thereby improving the reliability and efficiency of the oil injection process.
Patent Information
- Application Number
- CN202422903822.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-11-26
AI Technical Summary
The existing floor spring oiling mechanism cannot effectively prevent the oiling nozzle from being damaged during up-and-down movement or from leaking oil due to a loose connection with the floor spring.
A floor spring oil injection mechanism was designed, including a connecting frame, a linkage cross arm, an oil injection base plate, an oil injection cylinder, an oil injection nozzle, a self-locking stud, and a knob. Through the cooperation of the linkage cross arm and the self-locking stud, the up and down position of the oil injection nozzle can be adjusted to ensure precise connection between the oil injection nozzle and the floor spring connection port.
This reduces the chances of the grease nipple being damaged or leaking during its up-and-down movement, thus improving the reliability and efficiency of the grease filling process.
Smart Images
Figure CN223739216U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ground spring processing technical field especially a ground spring oil injection mechanism. BACKGROUND
[0002] As a hydraulic door closer, ground springs play an important role in the door control system of modern buildings. After assembly, in order to ensure the normal operation of the automatic closing function, the ground spring needs to be oiled. This process involves the use of a special oil injection machine, which can simultaneously clamp multiple ground springs and control the movement of the oil injection nozzle using its lifting mechanism. The oil injection nozzle will be connected with the communication port of the ground spring and connected with the oil supply system to inject oil. When the oil injection process is completed, the lifting mechanism will lift the oil injection nozzle back to the original position, thus completing the entire oil injection process.
[0003] However, according to the actual oil injection needs, different types of ground springs may be oiled in the same oil injection operation, causing the communication port of the ground spring to shift up and down. If the communication port of the ground spring moves up, it may easily hit the oil injection nozzle. If the communication port of the ground spring moves down, the position of the oil injection nozzle and the connection port may be too loose, causing oil leakage during the oil injection process. The position of the oil injection nozzle relative to the lifting mechanism in the prior art is fixed, and cannot address the problem of hitting the oil injection nozzle and oil leakage caused by the upward and downward shift of the communication port of the ground spring. SUMMARY
[0004] The technical problem to be solved by the utility model is to provide a ground spring oil injection mechanism that can reduce the risk of the oil injection nozzle being hit during upward and downward movement and the oil injection nozzle and the ground spring communication port being too loose, causing oil leakage.
[0005] To solve the above technical problems, the utility model provides a ground spring oil injection mechanism, which comprises a connecting frame, a linkage cross arm installed on the connecting frame in an adjustable up-down position, and multiple groups of oil injection assemblies arranged at intervals on the linkage cross arm. The oil injection assembly comprises an oil injection base plate connected with the linkage cross arm in an up-down sliding manner, an oil injection cylinder with its output end downwardly arranged and fixed to the lower side of the oil injection base plate, an oil injection nozzle installed at the output end of the oil injection cylinder, a self-locking stud rotationally connected with the linkage base plate, and a knob fixed to the upper end of the self-locking stud. The axis of the self-locking stud is perpendicular to the horizontal plane.
[0006] As an improvement of the above-mentioned scheme, the oil injection base plate is provided with two first guide holes arranged on the left and right sides of the oil injection cylinder, the linkage cross arm is provided with multiple first guide rods connected with the multiple first guide holes in a one-to-one up-down connection, and multiple first accommodation through holes for the output ends of the multiple oil injection cylinders to pass through.
[0007] As the improvement of the above-mentioned scheme, the self-locking stud is arranged at the rear of the oil injection cylinder, and the lower side of the knob is higher than the upper side of the oil injection base plate.
[0008] As the improvement of the above-mentioned scheme, the linkage cross arm is provided with a plurality of U-shaped vertical blocks with openings facing forward and arranged at intervals left and right, the upper part and the lower part of the self-locking stud are rotationally connected with the upper arm and the lower arm of the U-shaped vertical block in correspondence, and the oil injection base plate extends into the space between the upper arm and the lower arm of the U-shaped vertical block and is threadedly connected with the middle part of the self-locking stud.
[0009] As the improvement of the above-mentioned scheme, the connecting frame comprises a connecting cross arm arranged above the linkage cross arm, two second guide rods fixed below the connecting cross arm, and two adjusting studs fixed below the connecting cross arm, a plurality of the oil injection assemblies are arranged between the two second guide rods and the two adjusting studs, the linkage cross arm is provided with two second guide holes for slidingly connecting with the two second guide rods up and down and two second clearance through holes for corresponding passing through the two adjusting studs, and the adjusting studs are both threadedly connected with two adjusting nuts for abutting against the upper and lower sides of the linkage cross arm, respectively.
[0010] As the improvement of the above-mentioned scheme, the two adjusting studs are arranged in front of the two second guide rods in correspondence.
[0011] As the improvement of the above-mentioned scheme, the upper side or the lower side of the adjusting nut is fixedly provided with a grommet for abutting against the cross arm.
[0012] As the improvement of the above-mentioned scheme, the connecting frame further comprises a U-shaped cross block with openings facing forward, the lower end of the left second guide rod and the lower end of the left adjusting stud are both fixed to the left arm of the U-shaped cross block, and the lower end of the right second guide rod and the lower end of the right adjusting stud are both fixed to the right arm of the U-shaped cross block.
[0013] The present application has the following beneficial effects:
[0014] The ground spring oil injection mechanism can adjust the up and down positions of the multiple oil injection nozzles in a certain range, and can reduce the probability of the oil injection nozzles being injured and leaking oil caused by the loose connection between the oil injection nozzles and the ground spring communication ports. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 FIG. 1 is a structural schematic view of a ground spring oil injection mechanism in an embodiment of the present application;
[0016] Fig. 2 FIG. 2 is a structural schematic front view of the oil injection assembly installed on the linkage cross arm in the embodiment of the present application;
[0017] Fig. 3The structure schematic left view that the oil injection assembly is installed on the linkage cross arm in the embodiment of the utility model is shown in the figure.
[0018] Fig. 4 The structure schematic plan view that the oil injection assembly is installed on the linkage cross arm in the embodiment of the utility model is shown in the figure.
[0019] Fig. 5 The structure schematic view that the linkage cross arm is installed on the second guide rod and the adjusting stud in the embodiment of the utility model is shown in the figure.
[0020] In the figure,
[0021] 100, connecting frame; 110, connecting cross arm; 120, second guide rod; 130, adjusting stud; 140, adjusting nut; 141, grommet; 150, U-shaped cross block;
[0022] 200, linkage cross arm; 210, first guide rod; 220, first clearance through hole; 230, U-shaped vertical block; 240, second guide hole; 250, second clearance through hole;
[0023] 300, oil injection assembly; 310, oil injection base plate; 311, first guide hole; 320, oil injection cylinder; 330, oil injection nozzle; 340, self-locking stud; 350, knob. DETAILED DESCRIPTION
[0024] The utility model is further described below in combination with the drawings and specific embodiments, so that the technical idea of the utility model claimed is more clearly understood. Only this declaration, the up, down, left, right, front, back, inside, outside and other orientation words appearing in the text or about to appear in the utility model are based on the drawings of the utility model, and they are not specific limitations on the utility model.
[0025] As Figs. 1 to 5 The utility model discloses an oil injection mechanism of ground spring, including connecting frame 100, linkage cross arm 200 that the up and down position is installed on connecting frame 100 and multiple groups left and right interval set on linkage cross arm 200 oil injection assembly 300. Actually, the connecting frame 100 is used for the component of the rack installation connection with the oil injection machine of ground spring, plays the multiple oil injection assembly 300 on the linkage cross arm 200 installation to the rack of the oil injection machine of ground spring, and as the oil injection mechanism of ground spring, realizes to multiple ground spring oil injection, the linkage cross arm 200 can be through the up and down sliding connection with connecting frame 100 and cooperate locking mechanism or servo lifting mechanism and realize the up and down position adjustable installation on connecting frame 100, can adjust the up and down position of multiple oil injection assembly 300 simultaneously, to correspond to the height position of the ground spring communication port of need overall batch replacement.
[0026] The oil injection assembly 300 comprises an oil injection base plate 310 connected to the linkage horizontal arm 200 in a sliding manner, an oil injection cylinder 320 fixed to the lower side of the oil injection base plate 310 and having an output end arranged downward, an oil injection nozzle 330 mounted at the output end of the oil injection cylinder 320, a self-locking stud 340 connected to the linkage base plate in a rotating manner, and a knob 350 fixed to the upper end of the self-locking stud 340, wherein the axis of the self-locking stud 340 is perpendicular to the horizontal plane. In fact, the oil injection nozzle 330 is connected to an external hydraulic oil supply mechanism (not shown in the drawing) through a hose, so that the oil injection nozzle 330 is connected to the communication port of the ground spring, and the hydraulic oil is injected into the oil cavity of the ground spring; when the self-locking stud 340 rotates, the oil injection base plate 310 can slide up and down relative to the linkage horizontal arm 200, and when other external forces act on the oil injection base plate 310, the self-locking stud 340 will not rotate, preventing the oil injection nozzle 330 from being offset up and down due to external force collision.
[0027] The specific working principle of the oil injection mechanism of the ground spring during oil injection is as follows: the output ends of the plurality of oil injection cylinders 320 simultaneously act, so that the plurality of oil injection nozzles 330 move downward; by one-to-one comparison of the up-and-down positions of the plurality of oil injection nozzles 330 and the up-and-down positions of the corresponding plurality of ground spring communication ports, the plurality of knobs 350 are respectively rotated, the oil injection base plate 310 is driven to communicate with the oil injection cylinder 320 and the oil injection nozzle 330, and the up-and-down positions of the oil injection nozzles 330 are adjusted to the required positions; whether collision and oil leakage occur during oil injection is observed, and the up-and-down positions of the oil injection nozzles 330 are adjusted accordingly.
[0028] The oil injection mechanism of the ground spring can adjust the up-and-down positions of the plurality of oil injection nozzles 330 within a certain range, can reduce the probability of the oil injection nozzles 330 being damaged during up-and-down movement and the oil injection nozzles 330 being too loose to connect with the ground spring communication port, and can reduce the probability of oil leakage.
[0029] Specifically, the oil injection base plate 310 is preferably provided with two first guide holes 311 corresponding to the left and right sides of the oil injection cylinder 320, the linkage cross arm 200 is provided with a plurality of first guide rods 210 connected one by one to the plurality of first guide holes 311 in an up-down manner, and a plurality of first displacement through holes 220 for the output end of the plurality of oil injection cylinders 320 to pass through. Each set of oil injection assembly 300 is connected to the linkage cross arm 200 and the oil injection base plate 310 in an up-down sliding manner through the one-to-one corresponding up-down sliding connection of the two first guide holes 311 and the two first guide rods 210, and the first guide rod 210 does not move when the oil injection base plate 310 moves up and down, preventing the first guide rod 210 from interfering with the ground spring; in addition, the profile of the first displacement through hole 220 should be larger than the output end of the oil injection cylinder 320, preventing the output end of the oil injection cylinder 320 from interfering with the linkage cross arm 200 when moving up and down.
[0030] More specifically, the self-locking stud 340 is preferably arranged corresponding to the rear of the oil injection cylinder 320, and the lower side of the knob 350 is higher than the upper side of the oil injection base plate 310, preventing the self-locking stud 340 from blocking the oil injection cylinder 320, facilitating observation of the state of the oil injection cylinder 320 and the oil injection nozzle 330 during oil injection work, and adjusting the knob 350 to extend from above the oil injection base plate 310 to facilitate observation of the oil injection cylinder 320 and the oil injection nozzle 330 when adjusting the up-down position of the oil injection base plate 310.
[0031] It should be noted that the linkage cross arm 200 is preferably provided with a plurality of U-shaped vertical blocks 230 with openings facing forward, the upper and lower parts of the self-locking stud 340 are correspondingly connected to the upper and lower arms of the U-shaped vertical block 230, and the oil injection base plate 310 extends between the upper and lower arms of the U-shaped vertical block 230 and is threadedly connected to the middle part of the self-locking stud 340. By connecting the upper and lower parts of the self-locking stud 340 to the upper and lower arms of the U-shaped vertical block 230 respectively, the self-locking stud 340 is connected to the linkage cross arm 200 in a rotating manner while the connection strength between the self-locking stud 340 and the U-shaped vertical block 230 is enhanced, so that the deformation of the threaded segments of the self-locking stud 340 in the upper and lower arms of the U-shaped vertical block 230 is smaller, ensuring the accuracy of the up position adjustment of the oil injection base plate 310 and limiting the range of up position adjustment.
[0032] Specifically, the connecting frame 100 preferably comprises a connecting cross arm 110 above the linkage cross arm 200, two second guide rods 120 fixed below the connecting cross arm 110, and two adjusting studs 130 fixed below the connecting cross arm 110. A plurality of oil injection assemblies 300 are arranged between the two second guide rods 120 and the two adjusting studs 130. The linkage cross arm 200 is provided with two second guide holes 240 for sliding connection with the two second guide rods 120 and two second clearance through holes 250 for the two adjusting studs 130. The adjusting studs 130 are threadedly connected with two adjusting nuts 140 for abutting the upper and lower sides of the linkage cross arm 200. In fact, the connecting cross arm 110 is a component mounted to the frame of the oil injection machine. The linkage cross arm 200 is slidingly connected with the connecting cross arm 110 through the two second guide rods 120 and the two second guide holes 240. The adjusting nuts 140 are loosened to abut the linkage cross arm 200, and then the linkage cross arm 200 is moved up or down to the desired position. The adjusting nuts 140 are then rotated to abut the linkage cross arm 200 to lock the position of the linkage cross arm 200, so that the linkage cross arm 200 is adjustably mounted on the connecting frame 100.
[0033] More specifically, the two adjusting studs 130 are preferably arranged in front of the two second guide rods 120, so that the operator can easily rotate the adjusting nuts 140 from the front or with a tool, and the adjustment operation is more simple and intuitive. Further, the adjusting nuts 140 are preferably provided with a grommet 141 on the upper side or the lower side for abutting the cross arm. The grommet 141 is arranged on the lower side of the adjusting nut 140 above the linkage cross arm 200, and on the upper side of the adjusting nut 140 below the linkage cross arm 200. The grommet 141 can increase the contact area between the adjusting nut 140 and the linkage cross arm 200, increase the pressing force of the adjusting nut 140 on the linkage cross arm 200, and ensure that the position of the linkage cross arm 200 is fixed.
[0034] It is worth mentioning that the connecting frame 100 also preferably comprises a U-shaped cross block 150 with an opening facing forward. The lower end of the left second guide rod 120 and the lower end of the left adjusting stud 130 are fixed to the left arm of the U-shaped cross block 150. The lower end of the right second guide rod 120 and the lower end of the right adjusting stud 130 are fixed to the right arm of the U-shaped cross block 150. In fact, the U-shaped cross block 150 is also a connecting piece connected with the frame of the oil injection machine, which prevents the second guide rod 120 and the adjusting stud 130 from deforming. Moreover, the middle part of the U-shaped cross block 150 is concave towards the rear, which can provide space for the plurality of springs.
[0035] The above are only specific embodiments of the present application, and do not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A ground spring oiling mechanism characterized by: The utility model provides a kind of oil injection device, including connecting frame, linkage cross arm that is installed in connecting frame up and down position adjustable and multiple groups of oil injection assembly that are arranged on linkage cross arm left and right interval, the oil injection assembly includes the oil injection base plate that is slidably connected with linkage cross arm up and down, the oil injection cylinder that is fixed with oil injection base plate upside down and output end is arranged downwards, the oil injection nozzle that is installed at the output end of oil injection cylinder, the self-locking stud that is rotatably connected with linkage base plate and the knob that is fixed on the upper end of self-locking stud, the axis of self-locking stud is perpendicular to horizontal plane.
2. A ground spring oiling mechanism as claimed in claim 1, wherein: The oil injection base plate is provided with two first guide holes corresponding to the left and right sides of the oil injection cylinder, the linkage cross arm is provided with a plurality of first guide rods connected one-to-one with the plurality of first guide holes up and down and a plurality of first accommodation through holes for the output ends of the plurality of oil injection cylinders.
3. A ground spring oiling mechanism as claimed in claim 2, wherein: The self-locking stud is arranged corresponding to the rear of the oil injection cylinder, and the lower side of the knob is higher than the upper side of the oil injection base plate.
4. A ground spring oiling mechanism as claimed in claim 3, wherein: The linkage cross arm is provided with a plurality of U-shaped vertical blocks with openings facing forward, the upper and lower parts of the self-locking stud are rotatably connected with the upper and lower arms of the U-shaped vertical blocks, and the oil injection base plate extends between the upper and lower arms of the U-shaped vertical blocks and is threadedly connected with the middle part of the self-locking stud.
5. A ground spring oiling mechanism as claimed in claim 1, wherein: The connecting frame includes a connecting cross arm above the linkage cross arm, two second guide rods fixed below the connecting cross arm, and two adjustment studs fixed below the connecting cross arm, and the plurality of oil injection assemblies are arranged between the two second guide rods and the two adjustment studs, the linkage cross arm is provided with two second guide holes slidably connected with the two second guide rods up and down and two second accommodation through holes corresponding to the two adjustment studs, and the adjustment studs are threadedly connected with two adjustment nuts respectively for abutting the upper and lower sides of the linkage cross arm.
6. A ground spring oiling mechanism as claimed in claim 5, wherein: The two adjustment studs are arranged corresponding to the front of the two second guide rods.
7. A ground spring oiling mechanism as claimed in claim 5, wherein: The adjustment nut is provided with a grommet on the upper side or the lower side for abutting the cross arm.
8. A ground spring oiling mechanism as claimed in claim 5, wherein: The connecting frame further includes a U-shaped cross block with an opening facing forward, the lower end of the left second guide rod and the lower end of the left adjustment stud are fixed to the left arm of the U-shaped cross block, and the lower end of the right second guide rod and the lower end of the right adjustment stud are fixed to the right arm of the U-shaped cross block.