Protective device for inflating nitrogen spring

Abstract

The utility model discloses a protection device for nitrogen spring inflation, and relates to the technical field of nitrogen spring machining. The device comprises a protection mechanism, a motor is fixed to the right wall of a box body, a screw is fixed to a power output shaft of the motor, moving blocks are in threaded connection with the exteriors of the left side and the right side of the screw, the moving blocks are in sliding connection with the rear wall in the box body, and a nitrogen spring body is arranged in front of the screw and corresponds to the position between the two moving blocks; a motor is fixed to the upper side in the box body, a threaded rod is fixed to a power output shaft of the motor, a penetrating groove is formed in the front side of the left wall of the box body, a box door is inserted into the penetrating groove, and a connecting plate is fixed to the left end of the box door and is in threaded connection with the threaded rod. The nitrogen spring is clamped and fixed by the clamping blocks through the work of the motor, the nitrogen spring is prevented from being damaged due to collision with the box body, the box door is automatically opened and closed through the work of the motor, the operation is simpler, and the potential safety hazard is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of nitrogen spring processing technology, and in particular relates to a protective device for inflating nitrogen springs. Background Technology

[0002] A nitrogen spring is a device that uses the compression of nitrogen to store energy. It is used to provide balance, support, or cushioning. It is usually filled with nitrogen. The pressure and performance of the spring are adjusted by filling it with nitrogen. After the various parts of the nitrogen spring are assembled, the nitrogen spring needs to be filled with nitrogen. Since the nitrogen filled into the nitrogen spring is a high-pressure gas, in order to avoid accidental leakage of high-pressure gas during filling and causing safety accidents, the filling is usually carried out inside the protective device.

[0003] A search revealed that authorization announcement number CN209399133U, with an authorization announcement date of September 17, 2019, discloses a protective device for inflating a nitrogen spring, comprising a three-way structure, a first gas supply pipe, a second gas supply pipe, and a third gas supply pipe. The three-way structure is provided with an air inlet, a first air outlet, and a second air outlet. One end of the first gas supply pipe, the second gas supply pipe, and the third gas supply pipe are respectively connected to the air inlet, the first air outlet, and the second air outlet. The other end of the second gas supply pipe is provided with a switch. This device has a simple structure, is easy to use, and is highly practical.

[0004] Existing technology involves releasing high-pressure nitrogen from the third gas supply pipe after inflating the nitrogen spring by opening a switch to prevent accidental leakage and injury to operators. However, the nitrogen spring lacks effective fixing measures during inflation. When high-pressure nitrogen leaks and impacts the nitrogen spring, it can cause the nitrogen spring to collide with the housing, resulting in damage. Furthermore, existing technology requires manual operation to open and close the housing door, which is not only cumbersome but also prone to the possibility of forgetting to close the door, posing a significant safety hazard.

[0005] To address this issue, we provide a protective device for inflating nitrogen springs, thereby resolving the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a protective device for inflating nitrogen springs. The device uses a motor to clamp and fix the nitrogen spring, and the motor also enables the automatic opening and closing of the enclosure door. This solves the problems of existing technology, where accidental leakage of high-pressure nitrogen can cause the nitrogen spring to collide with the enclosure, resulting in damage to the nitrogen spring. Furthermore, existing technology requires manual operation to open and close the enclosure door, which is not only cumbersome but also prone to the risk of forgetting to close the door, posing a significant safety hazard.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model is a protective device for inflating a nitrogen spring, including a protective mechanism. The protective mechanism includes a housing, a motor fixed to the right wall of the housing, a screw fixed to the power output shaft of the motor, the threads on the outer peripheral walls of the left and right sides of the screw having opposite directions, and movable blocks threadedly connected to the outer sides of both sides of the screw. The movable blocks are slidably connected to the rear wall inside the housing. A nitrogen spring body is disposed between the two movable blocks in front of the screw. A motor is fixed to the upper side inside the housing, a threaded rod is fixed to the power output shaft of the motor, a through groove is opened on the front side of the left wall of the housing, a door is inserted into the through groove, a connecting plate is fixed to the left end of the door, and the connecting plate is threadedly connected to the threaded rod.

[0009] The present invention is further configured such that an air inlet pipe is fixedly installed through the upper wall of the box, an air inlet branch pipe is fixedly installed on the peripheral wall of the upper part of the box corresponding to the air inlet pipe, and an electromagnetic valve is fixedly installed at the end of the air inlet branch pipe away from the air inlet pipe.

[0010] The present invention is further configured such that a pressure sensor is fixed on the box corresponding to the lower part of the nitrogen spring body.

[0011] The present invention is further configured such that the left end of the screw is rotatably connected to the left wall of the housing via a bearing, and a clamping block is provided between the moving block and the nitrogen spring body, with a rubber pad fixed to the side wall of the clamping block near the nitrogen spring body.

[0012] The present invention is further configured such that the clamping block on the left side is fixedly connected to the moving block on the left side, and the moving block on the right side has an installation hole on its left wall. A pressure sensor 2 is installed inside the installation hole and is fixedly connected to the moving block on the right side.

[0013] The present invention is further configured such that a moving rod is provided above and below the mounting hole corresponding to the internal gap of the moving block located on the right side, the left end of the moving rod is fixedly connected to the clamping block located on the right side, and a baffle is fixed to the right end of the moving rod.

[0014] The present invention is further configured such that micro switches are symmetrically fixed on the left and right side walls of the box, a movable plate is fixed on the rear wall of the box door to the left of the micro switch on the right side, and a spiral strip is fixed on the box body at the edges of the front and rear side walls of the box door.

[0015] The present invention is further configured such that an electric push rod is fixed at the middle position of the lower wall of the box, a base plate is fixed at the lower end of the electric push rod, and guide sleeves are fixed at the four corner positions of the upper wall of the base plate. Guide rods are provided in the internal gap of the guide sleeves, and the upper ends of the guide rods are fixedly connected to the box.

[0016] The present invention is further configured such that a controller is provided on the right side of the box, and an end plate is fixed to the rear wall of the controller, and the end plate is fixedly connected to the box.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model, by setting up a motor, screw, moving block, and clamping block, utilizes the motor to drive the screw to rotate, which in turn moves the moving block, thereby causing the clamping block to move and clamp and fix the nitrogen spring. This ensures that the nitrogen spring is in a fixed state when inflated, preventing the nitrogen spring from colliding with the housing when high-pressure nitrogen impacts it. This also prevents damage to the nitrogen spring caused by collisions with the housing, thus solving the problem in existing technologies where accidental leakage of high-pressure nitrogen impacts the nitrogen spring, causing it to collide with the housing and resulting in damage.

[0019] 2. This utility model, by setting up a motor, a threaded rod, and a connecting plate, uses the motor to drive the threaded rod to rotate, which in turn moves the connecting plate and the corresponding door. The left and right movement of the door enables the opening and closing of the door, making operation simpler. At the same time, after the nitrogen spring is clamped and fixed, the controller automatically controls the motor to work and close the door, preventing the door from being forgotten to be closed. This solves the problem of existing technology requiring manual operation to open and close the door, which is not only cumbersome but also prone to being forgotten to close the door in actual operation, posing a significant safety hazard.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an overall structural diagram of a protective device used for nitrogen spring inflation.

[0023] Figure 2 for Figure 1 Partial structural diagram.

[0024] Figure 3 for Figure 2 An exploded view of part of the structure.

[0025] Figure 4 for Figure 2 Another perspective on the structure.

[0026] Figure 5 This is a left-side structural view of a protective device used for inflating nitrogen springs.

[0027] Figure 6 for Figure 5 Partial structural diagram.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1-Protective mechanism, 101-Box body, 101a-Micro switch, 101b-Pressure sensor one, 101c-Gateway, 101d-Guide rod, 101e-Ring strip, 101f-End plate, 102-Inlet pipe, 102a-Inlet branch pipe, 103-Solenoid valve, 104-Motor, 104a-Screw, 105-Moving block, 105a-Mounting hole, 106-Clamping block, 106a-Rubber pad, 107-Moving rod, 107a-Baffle, 108-Pressure sensor two, 2-Box door, 201-Connecting plate, 202-Moving plate, 3-Bottom plate, 301-Electric push rod, 302-Guide sleeve, 4-Nitrogen spring body, 5-Motor, 501-Threaded rod, 6-Controller. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] Please see Figure 1-3 This utility model is a protective device for inflating a nitrogen spring, including a protective mechanism 1. The protective mechanism 1 includes a housing 101 with an open front. A motor 104 is fixed to the right wall of the housing 101. A screw 104a is fixed to the power output shaft of the motor 104. The threads on the outer peripheral walls of the left and right sides of the screw 104a are opposite, so that when the screw 104a rotates, it drives two moving blocks 105 to move closer or further apart. Moving blocks 105 are threadedly connected to the outer sides of the left and right sides of the screw 104a. The moving blocks 105 are slidably connected to the rear wall inside the housing 101 to prevent the moving blocks 105 from rotating when the screw 104a rotates. A nitrogen spring body 4 is provided in front of the screw 104a between the two moving blocks 105.

[0033] Specifically, an air inlet pipe 102 is fixed through the upper wall of the housing 101. The air inlet pipe 102 is a high-pressure resistant hose. One end of the air inlet pipe 102 is connected to an external high-pressure gas source, and the other end is connected to the inflation port of the nitrogen spring. An air inlet branch pipe 102a is fixed on the upper side of the housing 101 corresponding to the peripheral wall of the air inlet pipe 102. The interior of the air inlet branch pipe 102a is connected to the interior of the air inlet pipe 102. A solenoid valve 103 is fixed at the end of the air inlet branch pipe 102a away from the air inlet pipe 102. After inflation is completed, the controller 6 controls the solenoid valve 103 to open and perform the deflation operation.

[0034] A pressure sensor 101b is fixed on the box 101 below the nitrogen spring body 4. When the nitrogen spring is placed on the detection surface of the pressure sensor 101b, the controller 6 controls the motor 104 to work, so that the two clamping blocks 106 move closer to each other to clamp and fix the nitrogen spring body 4.

[0035] The left end of the screw 104a is rotatably connected to the left wall of the housing 101 via a bearing. A clamping block 106 is provided between the moving block 105 and the nitrogen spring body 4. The clamping blocks 106 are arranged in an arc shape on one side wall of each other to fit and clamp the outer peripheral wall of the nitrogen spring body 4. A rubber pad 106a is fixed on the side wall of the clamping block 106 near the nitrogen spring body 4. When the nitrogen spring body 4 is clamped, the rubber pad 106a is in contact with the nitrogen spring body 4 to avoid damage to the outer peripheral wall of the nitrogen spring body 4.

[0036] The clamping block 106 on the left side is fixedly connected to the moving block 105 on the left side. The left wall of the moving block 105 on the right side is provided with a mounting hole 105a to provide mounting space for the pressure sensor 108. The pressure sensor 108 is installed inside the mounting hole 105a to detect the pressure from the clamping block 106. After the pressure of the clamping block 106 on the pressure sensor 108 reaches a preset value, the controller 6 controls the motor 104 to stop working so as to apply a suitable force to the nitrogen spring body 4 to avoid damage to the nitrogen spring body 4. The pressure sensor 108 is fixedly connected to the moving block 105 on the right side.

[0037] Above and below the mounting hole 105a, corresponding to the internal gap of the right-side movable block 105, a movable rod 107 is provided, so that the right-side clamping block 106 and the right-side movable block 105 can move relative to each other, so that the pressure sensor can detect the pressure from the clamping block 106. The left end of the movable rod 107 is fixedly connected to the right-side clamping block 106, and the right end of the movable rod 107 is fixed with a baffle 107a.

[0038] The operation process of this embodiment is as follows: the air inlet pipe 102 is connected to the air inlet of the nitrogen spring body 4, and the bottom of the nitrogen spring body 4 is placed on the upper surface of the pressure sensor 101b. At this time, the pressure sensor 101b sends an electrical signal to the microcontroller in the controller 6. The microcontroller controls the motor 104 to work and drive the screw 104a to rotate, so that the two moving blocks 105 move closer to each other, thereby driving the two clamping blocks 106 to move closer to each other to clamp and fix the nitrogen spring body 4.

[0039] Example 2

[0040] Please see Figure 1 , 2 4, 5, and 6 are the second embodiment of this utility model. This embodiment is based on the previous embodiment, but differs from the first embodiment in that: a motor 5 is fixed on the upper side inside the housing 101 to drive the threaded rod 501 to rotate. The threaded rod 501 is fixed on the power output shaft of the motor 5 to move the connecting plate 201. A through groove 101c is provided on the front side of the left wall of the housing 101 to provide space for the movement of the door 2. The door 2 is inserted into the through groove 101c. The connecting plate 201 is fixed on the left end of the door 2. The connecting plate 201 is threadedly connected to the threaded rod 501. When the connecting plate 201 moves, the door 2 moves.

[0041] Specifically, microswitches 101a are symmetrically fixed on the left and right side walls of the enclosure 101. A movable plate 202 is fixed to the left of the microswitch 101a on the right side, corresponding to the rear wall of the door 2. When the movable plate 202 moves to press the contact of the microswitch 101a, the controller 6 controls the motor 5 to stop working to prevent the door 2 from continuing to move. That is, the microswitch 101a provides a left and right limiting effect for the door 2. A spiral strip 101e is fixed on the enclosure 101 at the edges of the front and rear side walls of the door 2. The two spiral strips 101e provide a front and rear limiting effect for the door 2.

[0042] An electric push rod 301 is fixed at the middle position of the lower wall of the housing 101 for adjusting the height of the protective mechanism 1. The lower end of the electric push rod 301 is fixed to the base plate 3, which is fixed to the installation platform by bolts. Guide sleeves 302 are fixed at the four corners of the upper wall of the base plate 3. Guide rods 101d are provided in the internal clearance of the guide sleeves 302. The upper end of the guide rods 101d is fixedly connected to the housing 101. The cooperation between the guide sleeves 302 and the guide rods 101d allows the protective mechanism 1 to move only up and down, while preventing the protective mechanism 1 from tilting.

[0043] A controller 6 is provided on the right side of the housing 101 for automatically controlling the electrical appliances in the protective device for nitrogen spring inflation. All electrical appliances in the protective device for nitrogen spring inflation are electrically connected to the microcontroller in the controller 6 via conductive wires. The microcontroller in the controller 6 is electrically connected to an external power supply via conductive wires. All electrical appliances in the protective device for nitrogen spring inflation are existing technologies, and their models are not limited here. An end plate 101f is fixed to the rear wall of the controller 6, and the end plate 101f is fixedly connected to the housing 101.

[0044] The remaining structure is the same as in Example 1;

[0045] The operation process of this embodiment is as follows: When in use, firstly, the electric push rod 301 is operated by the controller 6 to adjust the protective mechanism 1 to a suitable operating height. Then, the motor 5 is operated by the controller 6 to drive the threaded rod 501 to rotate, thereby driving the connecting plate 201 to move to the left, and then driving the box door 2 to move to the left until the moving plate 202 presses against the contact of the micro switch 101a located on the left side. Then, the controller 6 stops the motor 5. At the same time, the controller 6 also controls the motor 104 to operate to drive the screw 104a to rotate, thereby driving the two clamping blocks 106 to move away from each other. Then, the clamping and fixing operation of the nitrogen spring body 4 is performed.

[0046] After the nitrogen spring body 4 is clamped and fixed, the controller 6 controls the motor 5 to work and drive the threaded rod 501 to rotate, thereby causing the box door 2 to move to the right until the moving plate 202 presses against the micro switch 101a located on the right side. Then, the controller 6 controls the motor 5 to stop working. At this time, the controller 6 also controls the solenoid valve 103 to close, so that the external high-pressure nitrogen can enter the air inlet pipe 102 to inflate the nitrogen spring body 4.

[0047] After inflation is complete, the controller 6 controls the solenoid valve 103 to open and release the high-pressure nitrogen in the air inlet pipe 102. At the same time, the controller 6 also controls the motor 5 to drive the door 2 to move to the left until the moving plate 202 presses against the micro switch 101a on the left side. Then the controller 6 controls the motor 104 to work so that the two clamps 106 release the clamping force on the nitrogen spring body 4. The air inlet pipe 102 is disengaged from the inflation port of the nitrogen spring body 4, and the inflated nitrogen spring body 4 can be taken out.

[0048] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A guard for nitrogen gas spring inflation, comprising a guard mechanism (1), characterized in that: The protection mechanism (1) includes a box body (101), the right wall of the box body (101) is fixed with a motor (104), the power output shaft of the motor (104) is fixed with a screw rod (104a), the thread directions of the outer circumferential walls on the left and right sides of the screw rod (104a) are opposite, the outer parts on the left and right sides of the screw rod (104a) are both threadedly connected with moving blocks (105), the moving blocks (105) are slidably connected with the rear wall in the box body (101), and nitrogen spring bodies (4) are arranged in front of the screw rod (104a) and correspond to the two moving blocks (105) between the screw rod (104a). The upper side in the box body (101) is fixed with an electric motor (5), the power output shaft of the electric motor (5) is fixed with a threaded rod (501), the front side of the left wall of the box body (101) is provided with a through slot (101c), the box door (2) is inserted into the through slot (101c), the left end of the box door (2) is fixed with a connecting plate (201), and the connecting plate (201) is threadedly connected with the threaded rod (501).

2. A guard for a nitrogen gas spring according to claim 1, wherein: The upper wall of the box body (101) is fixedly penetrated with an air inlet pipe (102), the circumferential wall of the box body (101) is fixed with an air inlet branch pipe (102a) above the air inlet pipe (102), and the air inlet branch pipe (102a) is fixed with an electromagnetic valve (103) away from the air inlet pipe (102).

3. A guard for a nitrogen gas spring according to claim 1, wherein: The lower side of the nitrogen spring body (4) is fixed with a pressure sensor one (101b) on the box body (101).

4. A guard for a nitrogen gas spring according to claim 1, wherein: The left end of the screw rod (104a) is rotatably connected with the left wall of the box body (101) through a bearing, the clamping blocks (106) are arranged between the moving blocks (105) and the nitrogen spring bodies (4), and the rubber pads (106a) are fixed to the side walls close to the nitrogen spring bodies (4) of the clamping blocks (106).

5. A guard for a nitrogen gas spring according to claim 4, wherein: The clamping block (106) on the left side is fixedly connected with the moving block (105) on the left side, the left wall of the moving block (105) on the right side is provided with a mounting hole (105a), the pressure sensor two (108) is arranged in the mounting hole (105a), and the pressure sensor two (108) is fixedly connected with the moving block (105) on the right side.

6. A guard for a nitrogen gas spring according to claim 5, wherein: The moving rods (107) are arranged in the gaps in the moving block (105) on the right side in a clearance fit mode from top to bottom of the mounting hole (105a), the left end of the moving rod (107) is fixedly connected with the clamping block (106) on the right side, and the right end of the moving rod (107) is fixed with a baffle (107a).

7. A guard for a nitrogen gas spring according to claim 1, wherein: The micro switches (101a) are symmetrically fixed to the left and right side walls of the box body (101), the moving plate (202) is fixed to the rear wall of the box door (2) and corresponds to the micro switch (101a) on the right side, and the back-and-forth-shaped strips (101e) are fixed to the box body (101) and correspond to the side edges of the left and right side walls of the box door (2).

8. A guard for a nitrogen gas spring according to claim 7, wherein: Electric push rod (301) is fixed in the middle position of the lower wall of the box (101), the lower end of the electric push rod (301) is fixed with the bottom plate (3), the upper wall of the bottom plate (3) is fixed with the guide sleeve (302) at four corner positions, the inner gap of the guide sleeve (302) is matched with the guide rod (101d), and the upper end of the guide rod (101d) is fixedly connected with the box (101).

9. A guard for a nitrogen gas spring according to claim 8, wherein: The controller (6) is arranged on the right side of the box (101), the rear wall of the controller (6) is fixedly connected with the end plate (101f), and the end plate (101f) is fixedly connected with the box (101).

Images