Clamp assemblies and pressure vessels

Abstract

The present invention provides a clamp assembly and a pressure vessel. The clamp assembly includes a plurality of sub-clamps, each of which is used to clamp on or leave the edge of a door to fix or release the door. The clamp assembly also includes a hanging unit, at least part of the sub-clamps are main sub-clamps, and the main sub-clamps are hung on the hanging unit and can move along the hanging unit to clamp on or leave the edge of the door. It is easy to realize the opening and closing of each sub-clamp.

Description

Technical Field

[0001] The present invention relates to the technical field of clamps, and more particularly to a clamp assembly and a pressure container. Background Art

[0002] The substances in the pressure vessel react under a relatively high pressure. In order to ensure the normal progress of the reaction in the pressure vessel, the pressure vessel needs to be sealed. In order to enter and exit the material from the pressure vessel, an opening needs to be set on the pressure vessel, and this opening needs to be sealed. The seal often uses a quick-opening door structure. The quick-opening door structure generally includes a door (such as a flange), which can block or release the opening. Using multiple sub-clamps of the clamp, it can be stuck on or off the edge of the door to fix or release it, that is, to lock the door or allow the door to open. In the prior art, there are generally two sub-clamps hanging on the nut, and the nut is threadedly connected to the locking screw. The movement of the two sub-clamps is achieved by rotating the locking screw, and then the other sub-clamps are driven to leave the door and release the door. Due to the large diameter and design pressure of the pressure vessel, the door and the clamp are required to be heavy, and the nut connected to the sub-clamp and the visible screw are easy to get stuck. In severe cases, the thread of the locking screw will be broken. Summary of the invention

[0003] The invention provides a clamp assembly and a pressure vessel to solve the technical problem in the prior art that a locking nut pair cannot work normally when the clamp is heavy.

[0004] According to a first aspect of the present invention, there is provided a clamp assembly, comprising a plurality of sub-clamps, each sub-clamp being used to clamp onto or leave the edge of a door to fix or release the door, the clamp assembly further comprising a hanging unit, at least some of the sub-clamps being main sub-clamps, the main sub-clamps being hung on the hanging unit and being able to move along the hanging unit to clamp onto or leave the edge of the door.

[0005] Optionally, the suspension unit includes a sliding track and a slider pair installed on the sliding track, and the main clamp is hung on the corresponding slider pair.

[0006] Optionally, it further comprises a first driving unit, wherein the first driving unit is used to drive the slider pair to move along a sliding track so that the main clamp moves along the suspension unit.

[0007] Optionally, the first driving unit includes a locking screw arranged parallel to the sliding track, the slider pair has a screw hole and is threadedly connected to the locking screw, and the slider pair can be moved along the sliding track by rotating the locking screw.

[0008] Optionally, there are two main clamps, which are hung on two slider pairs respectively.

[0009] Optionally, the two slider pairs are threadedly connected to the same locking screw, and the threads in the two screw holes have opposite rotation directions.

[0010] Optionally, the main clamp has a first end and a second end, and the first end is rotatably hung on the corresponding slider pair.

[0011] Optionally, the ends of multiple sub-clamps in the clamp assembly are connected in sequence to form a chain, wherein the two sub-clamps at both ends are main sub-clamps, and except for the first end of the main sub-clamp, the ends of all other adjacent sub-clamps are rotationally connected.

[0012] Optionally, a second driving unit is further included, which is connected to the locking screw and is used to drive the locking screw to rotate.

[0013] According to a second aspect of the present invention, a pressure vessel is provided, comprising a pressure vessel body having an opening, a clamp assembly, and a door installed at the opening of the pressure vessel body, wherein the clamp assembly is clamped on or away from the edge of the door to lock or release the door, and the door is used to seal or open the opening of the pressure vessel, and the clamp assembly is the clamp assembly provided according to the first aspect of the present invention.

[0014] According to the clamp assembly provided by the embodiment of the present invention, since some of the sub-clamps are hung on the suspension unit, the suspension unit provides an upward force on these sub-clamps, thereby balancing part or all of the gravity of the clamp assembly. In this way, when controlling the movement of each sub-clamp to be clamped on or off the edge of the door, the driving force required to drive these sub-clamps to move is smaller, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 is a structural diagram of a clamp assembly provided by an embodiment of the present invention and a pressure vessel formed by the clamp assembly;

[0017] FIG2 (a) is a structural diagram of a clamp locking a door in an embodiment of the present invention;

[0018] FIG2( b ) is a structural diagram of the embodiment of the present invention when the clamp releases the door;

[0019] Figure 3 It is a cross-sectional view of a structure in which a master clamp is hung on a slider pair in an embodiment of the present invention;

[0020] The accompanying drawings are denoted as follows:

[0021] 1. Flange; 2. Sub-clamp; 2a. Main sub-clamp; 3. Pin; 4. Rotating shaft; 5. Locking screw; 6. Nut; 7. Sliding track; 8. Slider pair; 9. Safety pin; 10. Motor; 11. Pin seat. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0023] like Figure 1 As shown, according to a first aspect of the present invention, a clamp assembly is provided, comprising a plurality of sub-clamps 2, each of which is used to clamp on or leave a door (e.g. Figure 1 The edge of the flange 1) in the door is used to fix or release the door, and the clamp assembly also includes a hanging unit, at least part of the sub-clamp 2 is the main sub-clamp 2a ( Figure 1 The two sub-clamps 2 in the middle and upper parts are mainly sub-clamps 2a, which are hung on the hanging unit and can move along the hanging unit to be stuck on or leave the edge of the door.

[0024] The clamp assembly of the present invention has multiple sections of sub-clamps 2, wherein at least part of the sub-clamps 2 (main sub-clamps 2a) are hung on the suspension unit, that is, at least part of the weight of the main sub-clamps 2a is borne by the suspension unit. In some examples, the gravity of all the sub-clamps 2 is borne by the suspension unit. In addition, the main sub-clamp 2a can also move along the suspension unit, so it can move between the position of being stuck on the edge of the door or away from the edge of the door (in some examples, it can also drive other sub-clamps 2 to move), thereby achieving the purpose of locking the door or allowing the door to open.

[0025] If the main clamp 2a is not suspended on the suspension unit, it is very difficult to drive the main clamp 2a to move because the weight of each section of the main clamp 2a is generally very large.

[0026] The function of the suspension unit is to offset part or all of the weight of the clamp hung thereon, so that the driving force required to move the main and sub-clamps 2a does not need to balance the weight of each sub-clamp 2. The required driving force is smaller, which makes it easier to operate and implement.

[0027] In a specific example, there is one main sub-clamp 2a hung on the suspension unit. In this case, the topmost sub-clamp 2 adjacent to the main sub-clamp 2a can be configured to be fixed in position or moved using other methods.

[0028] In another specific example, Figure 1 As shown, there are two main sub-clamps 2 a (the two uppermost sub-clamps 2 ) in the sub-clamps 2 .

[0029] FIG2 (a) shows the state where two main and sub-clamps 2a are "closed" together. In this state, the door is locked by all sub-clamps 2 and cannot be opened. FIG2 (b) shows the state where two main and sub-clamps 2a are "separated". In this state, the door is not restricted by the sub-clamps 2 and can be opened.

[0030] Optionally, the suspension unit includes a sliding rail 7 and a slider pair 8 installed on the sliding rail 7 , and the main clamp 2 a is hung on the corresponding slider pair 8 .

[0031] That is to say, the suspension unit may include a sliding track 7 and a slider pair 8, and the main clamp 2a is hung on the slider pair 8, that is, hung on the suspension unit; and the slider pair 8 can obviously slide along the sliding track 7, so the main clamp 2a moves along the suspension unit.

[0032] In some examples, such as Figure 3 As shown, the main clamp 2a is directly hung on the corresponding slider pair 8. In this example, the upper end of the main clamp 2a is provided with a hanging structure (e.g. Figure 3 The notch at the upper end of the middle main clamp 2a).

[0033] In other examples, the main clamp 2a is indirectly hung on the corresponding slider pair 8 through other components. Figure 1 A pin seat 11 is fixedly provided on the master clamp 2a, and a locking nut 6 passes through a hole in the pin seat 11. The locking nut 6 is connected to the slider pair 8, thereby achieving the effect of the master clamp 2a being hung on the corresponding slider pair 8.

[0034] Optionally, a first driving unit is further included, and the first driving unit is used to drive the slider pair 8 to move along the sliding track 7, so that the main clamp 2a moves along the suspension unit.

[0035] That is to say, a first driving unit capable of driving the main and sub-clamps 2a to move can be provided, thereby saving manpower. It should be understood that since the gravity of all sub-clamps 2a is borne by the suspension unit, the first driving unit only needs to provide force in the direction of the suspension unit, so the required driving force is smaller.

[0036] For example, the motor 10 can directly drive the slider pair 8 to move on the sliding track 7, so that the slider pair 8 drives the corresponding main clamp 2a to move. Alternatively, a mechanism such as a motor is directly connected to the main clamp 2a, and the motor directly drives the movement of the main clamp 2a. Since the main clamp 2a is hung on the sliding track 7, the driving force of the motor required at this time is also relatively small.

[0037] Optionally, the first driving unit includes a locking screw 5 arranged parallel to the sliding track 7, and the slider pair 8 has a screw hole and is threadedly connected to the locking screw 5, so that the slider pair 8 can move along the sliding track 7 by rotating the locking screw 5.

[0038] For example, Figure 1 In the embodiment, the slider pair 8 is also fixedly connected to the nut 6, and the slider pair 8 is threadedly connected to the locking screw 5 through the nut 6. In this way, rotating the locking screw 5 causes the nut 6 to move, thereby driving the slider pair 8 to move. The slider pair 8 and the nut 6 can be an integral structure, or they can be manufactured separately and then fixedly connected into one.

[0039] Optionally, there are two main clamps 2 a, which are hung on two slider pairs 8 respectively.

[0040] Alternatively, if Figure 1 As shown, the two slider pairs 8 are threadedly connected to the same locking screw 5, and the threads in the two screw holes are in opposite directions. In this way, when the locking screw 5 rotates, the movement directions of the two slider pairs 8 are opposite, thereby "closing" each sub-clamp 2 or "opening" each sub-clamp 2.

[0041] Those skilled in the art can also configure a locking screw 5 for each main clamp 2a separately, so that each main clamp 2a can be independently controlled.

[0042] Optionally, the main clamp 2a has a first end and a second end, and the first end thereof is rotatably hung on the corresponding slider pair 8.

[0043] For example, Figure 1 In the two main clamps (i.e. Figure 1 The two upper sub-clamps 2) are rotatably connected to the nuts 6 below the corresponding slider pair 8 through the holes in the pin seat 11, so that the first end (upper end) of the main sub-clamp 2a can be rotatably hung on the corresponding slider pair 8.

[0044] Optionally, the ends of multiple sub-clamps 2 in the clamp assembly are connected in sequence to form a chain, wherein the two sub-clamps 2 at the two ends are main sub-clamps 2a, and except for the first end of the main sub-clamp 2a, the ends of all other adjacent sub-clamps 2 are rotationally connected.

[0045] For example, Figure 1 In the middle, two main clamps 2 (i.e. Figure 1 The second ends (lower ends) of the two upper sub-hoops 2) are rotatably connected to the lowermost sub-hoop 2 via a pin 3.

[0046] It should be noted that the number of the sub-clamps 2 in the clamp assembly provided by the present invention is not limited to 3, for example, 4 or 5 sub-clamps 2 can implement the present invention.

[0047] Optionally, a second driving unit is further included, which is connected to the locking screw and is used to drive the locking screw 5 to rotate.

[0048] For example, Figure 1 In the process, the locking screw 5 is driven by the motor 10 to rotate.

[0049] According to a second aspect of the present invention, a pressure vessel is provided, comprising a pressure vessel body having an opening, a clamp assembly, and a door installed at the opening of the pressure vessel body, wherein the clamp assembly is used to clamp on or leave the edge of the door to lock or release the door, and the door is used to seal or open the opening of the pressure vessel, and the clamp assembly is the clamp assembly provided according to the first aspect of the present invention.

[0050] The door is, for example, Figure 1 The flange 1 has a protruding edge, so that each sub-clamp 2 is easy to clamp or loosen the flange 1.

[0051] exist Figure 1 The figure also shows a rotating shaft 4, and the flange 1 can be rotated toward the reader or away from the reader along the direction specified by the rotating shaft 4 to close the opening of the pressure container.

[0052] Figure 1 Also shown is a safety pin 9, which locks the two "closed" main clamps together.

[0053] It should be noted that in Figure 1 Among the three sub-clamps 2 shown, the butt joint of the two main sub-clamps is just above the center of the flange 1. In this structure, the two main sub-clamps are subjected to equal forces, and the system is easy to operate. However, the present invention is not limited to this. For example, Figure 1 The clamp assembly rotates clockwise by a certain angle, and its working principle is the same as the above case.

[0054] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A clamp assembly, comprising a plurality of sub-clamps, each sub-clamp being used to clamp on or leave the edge of a door to fix or release the door, characterized in that: The clamp assembly also includes a suspension unit, at least part of the sub-clamps are main sub-clamps, the main sub-clamps are suspended on the suspension unit and can move along the suspension unit to clamp on or leave the edge of the door; The ends of the plurality of sub-clamps in the clamp assembly are connected in sequence to form a chain; The suspension unit comprises a sliding track and a slider pair mounted on the sliding track, and the main clamp is suspended on the corresponding slider pair; A pin seat is fixedly provided on the master clamp, and a locking nut passes through a hole in the pin seat. The locking nut is connected to the slider pair, thereby achieving the effect of hanging the master clamp on the corresponding slider pair; it also includes a first driving unit, and the first driving unit is used to drive the slider pair to move along the sliding track so that the master clamp moves along the suspension unit; the first driving unit includes a locking screw arranged parallel to the sliding track, and a screw hole is provided in the slider pair and is threadedly connected to the locking screw, and the slider pair can be moved along the sliding track by rotating the locking screw.

2. The clamp assembly according to claim 1, characterized in that: There are two main clamps, which are hung on two slider pairs respectively.

3. The clamp assembly according to claim 2, characterized in that: The two slider pairs are threadedly connected to the same locking screw, and the threads in the screw holes of the two slider pairs have opposite rotation directions.

4. The clamp assembly according to claim 2, characterized in that: The main clamp has a first end and a second end, and the first end is rotatably hung on the corresponding slider pair.

5. The clamp assembly according to claim 4, characterized in that: Two sub-clamps at both ends of the multiple sub-clamps are main sub-clamps, and except for the first end of the main sub-clamp, the ends of all other adjacent sub-clamps are rotatably connected.

6. The clamp assembly according to claim 1, characterized in that: It also includes a second driving unit, which is connected to the locking screw and is used to drive the locking screw to rotate.

7. A pressure vessel, comprising a pressure vessel body having an opening, a clamp assembly, and a door installed at the opening of the pressure vessel body, wherein the clamp assembly is used to clamp on or leave the edge of the door to lock or release the door, and the door is used to seal or open the opening of the pressure vessel, characterized in that: The clamp assembly is the clamp assembly according to any one of claims 1-6.

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