CN214699165U - Closure device and air tightness detector - Google Patents
Closure device and air tightness detector Download PDFInfo
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- CN214699165U CN214699165U CN202120400171.9U CN202120400171U CN214699165U CN 214699165 U CN214699165 U CN 214699165U CN 202120400171 U CN202120400171 U CN 202120400171U CN 214699165 U CN214699165 U CN 214699165U
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Abstract
The utility model discloses a locking device and air tightness detector, this locking device and air tightness detector include first locking portion, second locking portion and backstop portion, second locking portion is connected in first locking portion and can for first locking portion rotates, second locking portion for first locking portion has the first position of corresponding closure state and the second position that corresponds the unblock state, backstop portion connects first locking portion with at least one in the first locking portion, backstop portion can be opened backstop second locking portion is in the second position. According to the utility model discloses locking device through setting up backstop portion, can effectively avoid the spontaneous rotation of second locking portion does benefit to the stability and the security that increase locking device.
Description
Technical Field
The utility model relates to an air tightness detects technical field, in particular to locking device and air tightness detect.
Background
For the water-soaking type air tightness detection equipment, the air tightness and the water resistance of products are measured by simulating different water depths of the water storage tank, the water storage tank is pressurized in order to simulate a real scene, and therefore the air tightness of the water storage tank per se needs to reach an expected index in order to meet the air tightness measurement test condition. In the pressurizing process, the cover body of the water storage tank is easy to jack up and open by internal air pressure, and the problems of handle rebound, poor locking and the like easily occur in the locking device for locking the water storage tank and the cover body at present, wherein the phenomenon of air leakage of the water storage tank is easily caused by poor locking. When handle rebound occurs, the safety of the test person can be affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a locking device does benefit to the stability and the security that increase its self.
Another object of the present invention is to provide an air tightness detecting instrument.
According to the utility model discloses locking device, locking device includes first locking portion, second locking portion and backstop portion, second locking portion connect in first locking portion and can for first locking portion rotates, second locking portion for first locking portion has the first position of corresponding locking state and the second position of corresponding unblock state, backstop portion connects first locking portion with at least one in the first locking portion, backstop portion backstop with opening second locking portion is in the second position.
According to the utility model discloses locking device through setting up backstop portion, can effectively avoid the spontaneous rotation of second locking portion does benefit to the stability and the security that increase locking device.
In addition, the locking device according to the above embodiment of the present invention may further have the following additional technical features:
in some embodiments, the first locking portion includes a main body portion and a latch, the main body portion and the latch form a frame structure, and the latch is connected to one end of the main body portion, wherein the latch is configured to facilitate a locking function of the locking device.
In some embodiments, the second locking portion comprises a pin, a base and a handle, the pin is connected to the other end of the main body portion; the extending direction of the base is perpendicular to the extending direction of the pin column, a through groove with a preset length is formed in the base in the extending direction of the base, the pin column penetrates through the through groove, the pin column can move along the through groove, the second locking portion is located at the first position when the pin column moves to one end of the through groove, and the second locking portion is located at the second position when the pin column moves to the other end of the through groove; the handle with the base is connected just the handle with the extending direction of base is unanimous.
In some embodiments, the pin is staked to the base, and the base is rotatable about the pin.
In some embodiments, the first locking portion is matched with a first locking piece, the second locking portion is matched with a second locking piece, the second locking piece is connected with the main body portion, the first locking piece is provided with a locking groove, the latch is clamped into the locking groove at the first position of the second locking portion, and the latch and the locking groove are separable at the second position of the second locking portion.
In some embodiments, an end of the base away from the handle is riveted and clearance-fitted to the second locking element.
In some embodiments, the stopping portion comprises a pulling piece and a connecting seat, the connecting seat is connected to the first locking portion, the pulling piece is connected to the connecting seat in a pulling manner, and the pulling piece is pulled to a position for stopping the handle so as to prevent the handle from rebounding.
In some embodiments, the connecting seat is formed with a mounting groove, two opposite side walls of the mounting groove are provided with connecting holes, one end corresponding to the shifting piece is provided with a mounting hole, the shifting piece is accommodated in the mounting groove, the mounting hole is aligned with the connecting hole, the connecting seat is further provided with a mounting shaft, the mounting shaft penetrates through the mounting hole and the connecting hole to connect the connecting seat and the shifting piece, and the mounting shaft is in clearance fit with the mounting hole to enable the shifting piece to rotate around the mounting shaft.
In some embodiments, the stopping portion further includes a first limiting portion and a second limiting portion, the first limiting portion is disposed inside the second locking portion, and the second limiting portion and the first limiting portion cooperate with each other to prevent the second locking portion from rotating from the first position to the second position.
In some embodiments, the first limiting portion is an open long hole and extends in the front-back direction, the second limiting portion comprises a push rod and a driving piece, the push rod extends in the up-down direction, the driving piece drives the push rod to move in the up-down direction, the push rod is arranged below the long hole, and the push rod is clamped into the long hole to limit the second locking portion.
In certain embodiments, the drive member is a cylinder.
The utility model also provides an air tightness detecting instrument, which comprises a water storage tank and any one of the locking devices, wherein the water storage tank is provided with a cover body; the locking device is arranged on at least one of the water storage tank and the cover body, and the locking device can lock the cover body and the water storage tank.
According to the utility model discloses gas tightness detecting instrument owing to possessed aforementioned locking device, gas tightness detecting instrument also has good stability and security equally.
In addition, the advantages brought by additional aspects of the closure according to embodiments of the present invention will be given in the detailed description that follows.
Drawings
Fig. 1 is a front view of a closure according to an embodiment of the present invention.
Fig. 2 is a perspective view of a locking device according to an embodiment of the present invention.
Fig. 3 is an exploded view of a closure according to an embodiment of the present invention.
Fig. 4 is a schematic view of a locking device according to an embodiment of the present invention in a locked state.
Fig. 5 is a schematic view of a lock device according to an embodiment of the present invention in an unlocked state.
Fig. 6 is a schematic view of an air-tightness detecting instrument according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of a partial structure of the air-tightness detecting instrument according to an embodiment of the present invention.
Fig. 8 is a schematic view of the airtightness detection apparatus of fig. 6 in another direction.
Fig. 9 is an enlarged view of region a in fig. 8.
Reference numerals:
the closure 100 is shown in a closed position,
a first locking part 10, a second locking part 20, a stopping part 30, a main body part 101, a latch 102, a pin 201, a base 202, a through groove 210, a handle 203, a first locking part 40, a second locking part 50, a locking groove 41, a shifting piece 31, a connecting seat 32, a mounting groove 321, a connecting hole 322, a mounting hole 311, a mounting shaft 323, a first limiting part 33, a second limiting part 34, a push rod 341 and a driving part 342,
air tightness detecting instrument 1000, water storage tank 200, lid 300.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The locking device 100 according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 5.
Referring to fig. 1 and 2, the locking device 100 includes a first locking portion 10, a second locking portion 20, and a stopper 30, the second locking portion 20 is connected to the first locking portion 10 and can rotate relative to the first locking portion 10, the second locking portion 20 has a first position corresponding to a locked state and a second position corresponding to an unlocked state relative to the first locking portion 10, the stopper 30 is connected to at least one of the first locking portion 10 and the first locking portion 10, and the stopper 30 releasably stops the second locking portion 20 at the second position.
According to the embodiment of the present invention, the locking device 100 can effectively avoid the spontaneous rotation of the second locking portion 20 by providing the stopping portion 30, which is beneficial to increasing the stability and safety of the locking device 100, and the stopping portion 30 is provided to stop the second locking portion 20 at the second position in an openable manner, so that the second locking portion 20 can be conveniently rotated to the first position by stopping the second locking portion 20 at the second position, and the stopping portion 30 can be opened to facilitate the rotation of the second locking portion 20 from the second position to the first position when the locking device 100 needs to be unlocked.
In the above embodiment, the first position and the second position of the second locking portion 20 are relative to the first locking portion 10, and referring to fig. 5, the second locking portion 20 can rotate relative to the first locking portion 10, the second locking portion 20 rotates to be parallel to the first locking portion 10, the second locking portion 20 is in the second position, and when the second locking portion 20 rotates out of the plane flush with the first locking portion 10 to be in the rotation stop position, the stop position is the first position of the second locking portion 20.
Alternatively, the stopping portion 30 may be in the form of a blocking piece, which is disposed in the first locking portion 10 and corresponds to the position of the second locking portion 20 and can stop the rotation of the second locking portion 20, wherein the blocking piece may be in a telescopic form, the second locking portion 20 is in the second position, and the blocking piece may extend to stop the second locking portion 20; when the second lock portion 20 needs to be rotated from the second position to the first position, the shutter can be retracted to avoid blocking the rotation of the second lock portion 20.
In the above embodiment, the flap may also be configured to rotate, the second lock portion 20 is in the second position, the lock device 100 is in the locked state, and the flap may rotate to the corresponding position to stop the second lock portion 20. When the second locking portion 20 needs to be rotated from the second position to the first position, the flap can be rotated open to avoid blocking the second locking portion 20.
Referring to fig. 1, the first locking portion 10 includes a body portion 101 and a latch 102, the body portion 101 and the latch 102 forming a frame structure, and the latch 102 being connected to one end of the body portion 101. Alternatively, the main body 101 extends in the transverse direction, and the main body 101 may include two connecting rods spaced apart in the up-down direction (the up-down direction is shown in fig. 1 and 3), one end of each of the two connecting rods is riveted to the latch 102, and the other end of each of the two connecting rods is riveted to the second locking portion 20. The lock bolt 102 is provided to facilitate the locking function of the locking device 100, and the lock bolt 102 may be a cylinder structure, a square column or a cylinder structure, and in cooperation with the lock bolt 102, there may be a lock hole or a lock catch in the locking device 100.
Referring to fig. 1 to 3, the second locking portion 20 includes a pin 201, a base 202, and a handle 203, the pin 201 is connected to the other end of the body 101, an extending direction of the base 202 is perpendicular to the extending direction of the pin 201, a through slot 210 with a predetermined length is opened in the base 202 in the extending direction of the base 202, the pin 201 penetrates through the through slot 210, the pin 201 is movable along the through slot 210, the pin 201 moves to one end of the through slot 210 to place the second locking portion 20 in the first position, the pin 201 moves to the other end of the through slot 210 to place the second locking portion 20 in the second position, the handle 203 is connected to the base 202, and the handle 203 is aligned with the extending direction of the base 202. The handle 203 extends in the same direction as the base 202, and the base 202 can be rotated by the force applied on the handle 203, the base 202 is connected with the pin 201, the pin 201 is connected with the main body 101, so that the first locking portion 10 and the second locking portion 20 can be moved, and the locking device 100 can be switched between the locked state and the unlocked state by changing the positions of the first locking portion 10 and the second locking portion 20.
Referring to fig. 1 to 3, the pin 201 and the base 202 are riveted, and the base 202 is rotatable around the pin 201. The pin 201 and the base 202 are riveted, the process is simple, and the structure is stable, wherein the pin 201, the latch 102 and the main body 101 are connected to form a square frame type lock frame, the handle 203 drives the base 202 to rotate, and the base 202 drives the square frame type lock frame to rotate, so that the locking device 100 can be switched between a locking state and an unlocking state.
Referring to fig. 1 to 3, the first locking portion 10 is engaged with the first locking element 40, the second locking portion 20 is engaged with the second locking element 50, the second locking element 50 is connected to the main body 101, the first locking element 40 is provided with a locking groove 41, the second locking portion 20 is locked in the locking groove 41 by the latch 102 at the first position, and the second locking portion 20 is separated from the locking groove 41 by the latch 102 at the second position. When the locking device 100 needs to be locked, the handle 203 is rotated to drive the second locking portion 20, the second locking portion 20 drives the first locking portion 10 to rotate until the latch 102 is clamped in the locking groove 41, then the handle 203 is rotated in the opposite direction, the handle 203 drives the base 202 to rotate, the pin 201 on the base 202 slides from one end of the base 202 penetrating through the groove 210 to the other end, finally, the handle 203, the first locking portion 10 and the second locking portion 20 are located on the same straight line, the stopping portion 30 is opened, the stopping handle 203 rebounds, and the locking process is completed. When unlocking is needed, the stopping portion 30 is closed, and the handle is rotated to drive the first locking portion 10 to rotate, so as to drive the latch 102 to be disengaged from the lock groove 41.
Referring to fig. 1 to 5, an end of the base 202 away from the handle 203 is riveted to the second locking element 50 and is in clearance fit. The base 202 and the second locking element 50 are riveted, so that the connection is stable and the manufacture is simple. In addition, the second locking element 50 is riveted with the base 202 and is in clearance fit, so that the rotation of the second locking portion 20 can be ensured, and since the first locking portion 10 is connected with the second locking portion 20, the position of the first locking portion 10 can be adjusted through the rotation of the second locking portion 20, so that the position of the latch 102 is adjusted to enable the locking groove 41 of the first locking element 40 to be matched, clamped and released.
Referring to fig. 3, the stopper portion 30 includes a pulling piece 31 and a connecting seat 32, the connecting seat 32 is connected to the first locking portion 10, the pulling piece 31 is connected to the connecting seat 32 in a pokable manner, and the pulling piece 31 is poked to a position for stopping the handle 203 to prevent the handle 203 from rebounding. The setting form of plectrum 31 is simple, and low cost, specifically speaking, the one end of plectrum 31 is connected on connecting seat 32, and plectrum 31 is influenced by the dead weight and hangs down naturally, and the other end of plectrum 31 can free rotation, and plectrum 31 can be followed the position of being connected with connecting seat 32 and rotated.
Referring to fig. 3, the connecting seat 32 is formed with a mounting groove 321, two opposite sidewalls of the mounting groove 321 are provided with connecting holes 322, one end corresponding to the pulling piece 31 is provided with a mounting hole 311, the pulling piece 31 is accommodated in the mounting groove 321, the mounting hole 311 is aligned with the connecting hole 322, the connecting seat 32 is further provided with a mounting shaft 323, the mounting shaft 323 penetrates through the mounting hole 311 and the connecting hole 322 to connect the connecting seat 32 and the pulling piece 31, wherein the mounting shaft 323 is in clearance fit with the mounting hole 311 to enable the pulling piece 31 to rotate around the mounting shaft 323.
With reference to fig. 7 and 9, the blocking portion 30 further includes a first limiting portion 33 and a second limiting portion 34, the first limiting portion 33 is disposed on the second locking portion 20, the second limiting portion 34 is disposed on the first locking portion 10, and the second limiting portion 34 and the first limiting portion 33 cooperate with each other to prevent the second locking portion 20 from rotating from the first position to the second position. For example, the first position-limiting portion 33 may be a claw, and the second position-limiting portion 34 may be a groove, and the claw is inserted into the groove to cooperate with the position-limiting second locking portion 20.
Specifically, the second locking portion 20 includes a handle 203, the handle 203 is connected to a base 202 of the second locking portion 20, the base 202 of the second locking portion 20 is connected to the first locking portion 10, when the locking device 100 is in the unlocking state, the handle 203 is rotated to drive the base 202 to rotate, so as to drive the first locking portion 10 to rotate, the latch 102 is disposed on the first locking portion 10, the latch 102 is hooked in the locking groove 41 of the first locking portion 40, and then the handle 203 is rotated in the opposite direction to drive the second locking portion 20 to rotate, and after the second locking portion 20 rotates to the extending direction of the first locking portion 10, the locking device 100 is in the locking state. The handle 203 may be provided with a first position-limiting portion 33, and the first locking portion 10 is provided with a second position-limiting portion 34, for example, the first position-limiting portion 33 and the second position-limiting portion 34 cooperate to form a snap structure, and the snap structure limits the relative rotation of the second locking portion 20 in the first position.
In the above embodiment, referring to fig. 9, the first position-limiting portion 33 is an open-type long hole and extends along the front-back direction, the second position-limiting portion 34 includes the push rod 341 and the driving member 342, the push rod 341 extends along the up-down direction, the driving member 342 drives the push rod 341 to move along the up-down direction, the push rod 341 is disposed below the long hole, and the push rod 341 is inserted into the long hole to limit the second locking portion 20.
In the above embodiment, referring to fig. 9, the driving member 342 is a cylinder. The cylinder is connected to the push rod 341, the cylinder and the push rod 341 are linearly arranged, the push rod 341 faces the long hole of the first position-limiting portion 33, and when the locking device 100 is in the locking state, the cylinder can drive the push rod 341 to move upward and enter the long hole, so as to stop the second locking portion 20 at the first position and prevent the second locking portion 20 from moving.
Referring to fig. 6 to 9, an air tightness detecting apparatus 1000 includes a water storage tank 200 and the locking device 100, wherein the water storage tank 200 is provided with a cover 300; the locking device 100 is disposed on at least one of the water storage tank 200 and the cover 300, and the locking device 100 can lock the cover 300 and the water storage tank 200.
According to the utility model discloses gas tightness instrumentation 1000, because it has set up the locking device 100 of any one of the aforesaid, the backstop portion 30 of locking device 100 can protect the stability and the security of locking device 100 under the closure state effectively, consequently, the utility model discloses a gas tightness instrumentation also has good security and stability.
In the above embodiment, the water storage tank 200 may be configured as a cylinder, the cover 300 may be covered on the water storage tank 200, the locking device 100 is connected to the water storage tank 200, the locking device 100 includes the first locking member 40 and the second locking member 50, the first locking member 40 and the second locking member 50 are separately disposed on the circumferential surface of the water storage tank 200, and the first locking member 40 and the second locking member 50 may be configured as semi-annular embracing arms, at least two grooves are disposed on the inner circumferences of the first locking member 40 and the second locking member 50 facing the water storage tank 200, and the circumferential edge of the cover 300 and the circumferential edge of the water storage tank 200 are respectively clamped in the two grooves, so that the first locking member 40 and the second locking member 50 can connect the cover 300 and the water storage tank 200. The second locking element 50 is connected with a second locking part 20, the second locking part 20 comprises a base 202 and a handle 203, the handle 203 is connected with one end of the base 202, the other end of the base 202 is mutually riveted and in clearance fit with the second locking element 50, and the handle 203 is rotated, so that the second locking part 20 can rotate around a riveting column at the riveting position. The first locking element 40 is provided with a locking groove 41, after the latch 102 of the first locking part 10 is snapped into the locking groove 41, the handle 203 is rotated to drive the second locking part 20 to rotate around the rivet column, the second locking part 20 drives the first locking part 10 to rotate, after the pin 201 on the second locking part 20 slides to the end of the through groove 210 of the base 202, the extending directions of the first locking part 10, the second locking part 20 and the handle 203 are kept consistent, and the locking device 100 is in a locking state.
In the above embodiments, the locking device 100 can also be connected to the cover 300, for example, the locking device 100 can be connected to the cover 300 by a fastener such as a bolt, or the locking device 100 can be pinned to the cover 300.
In addition, when the locking device 100 is in the locked state, the stopping portion 30 may stop the rotation of the handle 203, specifically, the handle 203 is provided with the poking piece 31 in the unlocking direction, the poking piece 31 may naturally droop to stop the handle 203 to rotate in the unlocking direction, when the locking device 100 needs to be unlocked, the poking piece 31 may be poked upwards, and then the handle 203 is rotated in the unlocking direction. In order to further increase the security and stability of the locking device 100, a second protection may be further disposed in the locking device 100, referring to fig. 9, a first limiting portion 33 is disposed in a direction of the second locking portion 20 close to the water storage tank 200, the first limiting portion 33 is a strip-shaped hole, the water storage tank 200 is connected to a second limiting portion 34, the second limiting portion 34 includes a cylinder and a push rod 341 connected to the cylinder, and in a locking state of the locking device 100, the cylinder may push the push rod 341 to extend into the long hole of the first limiting portion 33, so as to prevent the handle 203 from rotating toward the unlocking direction.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (12)
1. A closure, comprising:
a first locking portion;
the second locking part is connected to the first locking part and can rotate relative to the first locking part, and the second locking part has a first position corresponding to a locking state and a second position corresponding to an unlocking state relative to the first locking part;
a stopper portion connecting at least one of the first locking portion and the first locking portion, the stopper portion detachably stopping the second locking portion at the second position.
2. The closure of claim 1 wherein the first latch portion comprises a body portion and a latch, the body portion and the latch forming a frame structure, the latch being connected at one end of the body portion.
3. The locking device of claim 2 wherein the second lock comprises:
a pin connected to the other end of the main body;
the extending direction of the base is perpendicular to the extending direction of the pin column, a through groove with a preset length is formed in the extending direction of the base, the pin column penetrates through the through groove, the pin column can move along the through groove, the second locking portion is located at the first position when the pin column moves to one end of the through groove, and the second locking portion is located at the second position when the pin column moves to the other end of the through groove;
the handle, the handle with the base is connected just the handle with the extending direction of base is unanimous.
4. A closure according to claim 3, wherein the pin and the base are riveted, the base being rotatable about the pin.
5. The locking device of claim 3 wherein the first locking portion is engaged with a first locking element and the second locking portion is engaged with a second locking element, the second locking element is connected to the body portion, the first locking element is provided with a locking slot, the second locking portion in the first position locks the latch into the locking slot, and the second locking portion in the second position separates the latch from the locking slot.
6. The closure of claim 5 wherein the end of the base remote from the handle is riveted to the second closure with a clearance fit.
7. The locking device of claim 3 wherein the stop comprises a paddle and a connecting socket, the connecting socket being connected to the first locking portion, the paddle being snapably connected to the connecting socket, and the paddle being snapably shiftable to a position to stop the handle to prevent rebound of the handle.
8. The locking device of claim 7 wherein the connecting base defines a mounting slot having attachment holes on opposite sidewalls thereof, a mounting hole defined in an end of the paddle and received in the mounting slot, the mounting hole being aligned with the attachment holes, and a mounting shaft extending through the mounting hole and the attachment holes to connect the connecting base and the paddle, wherein the mounting shaft is in clearance fit with the mounting hole to allow the paddle to rotate about the mounting shaft.
9. The locking device of any one of claims 1 to 8 wherein the stop portion further comprises a first position limiting portion and a second position limiting portion, the first position limiting portion is disposed on the second locking portion, and the second position limiting portion and the first position limiting portion cooperate to prevent the second locking portion from rotating from the first position to the second position.
10. The locking device according to claim 9, wherein the first position-limiting portion is an open-type long hole and extends in the front-rear direction, the second position-limiting portion includes a push rod and a driving member, the push rod extends in the up-down direction, the driving member drives the push rod to move in the up-down direction, the push rod is disposed below the long hole, and the push rod is engaged in the long hole to limit the second locking portion.
11. The lock-down device of claim 10, wherein the driving member is a cylinder.
12. An air-tightness detector, characterized by comprising:
the water storage tank is provided with a cover body;
the locking device of any one of claims 1 to 11 disposed on at least one of the water storage tank and the cover, the locking device locking the cover and the water storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120400171.9U CN214699165U (en) | 2021-02-23 | 2021-02-23 | Closure device and air tightness detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120400171.9U CN214699165U (en) | 2021-02-23 | 2021-02-23 | Closure device and air tightness detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214699165U true CN214699165U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120400171.9U Active CN214699165U (en) | 2021-02-23 | 2021-02-23 | Closure device and air tightness detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214699165U (en) |
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2021
- 2021-02-23 CN CN202120400171.9U patent/CN214699165U/en active Active
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Effective date of registration: 20230829 Address after: 518000 301, Building 47, Zone B, Yuanshan Industrial Zone, Shangcun Community, Gongming Street, Guangming District, Shenzhen, Guangdong Patentee after: SHENZHEN XILI INSTRUMENT EQUIPMENT Co.,Ltd. Address before: 518312 Room 201, building B, Shifeng Industrial Park, Shangcun community, Gongming street, Guangming District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Tianhua precision automation equipment Co.,Ltd. |
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