Automatic pressing mechanism and reaction device

Abstract

The invention relates to the field of chemical equipment, and discloses an automatic pressing mechanism and a reaction device. The automatic pressing mechanism comprises a pressing support which can be installed above a device to be pressed, a horizontal channel and a vertical channel are defined in the pressing support, and the horizontal channel and the vertical channel are arranged in a mutually crossed and communicated mode; the push rod is mounted in the horizontal channel and can horizontally move relative to the horizontal channel; the pressing rod is installed in the vertical channel and can vertically move relative to the vertical channel, a first through hole allowing the push rod to penetrate through is formed in the pressing rod, and the pressing rod is matched with the push rod wedge so as to move downwards to press the device to be pressed and move upwards to loosen the device to be pressed under the horizontal movement effect of the push rod; and the driving piece is used for driving the push rod to move horizontally. According to the automatic pressing mechanism, the sealing performance of the reaction kettle can be guaranteed, and meanwhile automatic cover sealing and cover opening operation of the reaction kettle can be achieved.

Description

Technical Field

[0001] The present invention relates to the field of chemical equipment, and particularly to an automatic pressing mechanism and a reaction device including the automatic pressing mechanism. Background Art

[0002] The material development in the field of chemical energy is a complex and multi-factor intertwined systematic project. The traditional R & D process uses a trial-and-error method, which is time-consuming, laborious, and has a long cycle. High-throughput synthesis equipment has characteristics such as miniaturization, compactness, and parallelization, and is an important tool for improving R & D efficiency, shortening R & D time, and reducing R & D costs. The reaction kettle is the most important device in the entire high-throughput synthesis equipment, and its sealing performance, heat resistance, and explosion-proof performance are important factors to ensure product quality.

[0003] Currently, for the reaction kettles used in the market, most of the kettle body and the kettle cover are connected by bolts, and their opening and closing control requires manual operation. Experimental personnel need to use a wrench to tighten and loosen the nuts, which is inconvenient for disassembly and assembly, time-consuming and laborious. Moreover, after long-term repeated tightening and loosening, the nuts are easily worn, causing potential safety hazards.

[0004] In order to increase the convenience of the sealing operation of the reaction kettle, Chinese Patent CN215655109U proposes a capping device for an industrial chemical reaction kettle. By setting a pipe cap on the feed pipe and a sealing plug on the discharge pipe, the cylinder body is well sealed, ensuring the effective progress of the material in the reaction kettle and improving the sealing performance. However, the taking and placing of its pipe cap and sealing cover need to be manually operated by humans, and it does not involve the unmanned automation design for the opening and closing operation of the reaction kettle. Chinese Patent CN208642627U provides a method for capping a reaction kettle with hinges and a rack and pinion, which reduces the operation difficulty of experimental personnel in manually opening the reaction kettle cover. However, it does not consider that the capping still requires manual operation by experimental personnel, and the kettle cover and the kettle body are connected as a whole by hinges, which is not convenient for disassembly, maintenance, and automation design. Summary of the Invention

[0005] The object of the present invention is to solve the above problems, and provide an automatic pressing mechanism and a reaction device including the automatic pressing mechanism, which can realize the automatic capping and uncapping operations of the reaction kettle while ensuring the sealing performance of the reaction kettle.

[0006] To achieve the above object, on the one hand, the present invention provides an automatic pressing mechanism, which includes:

[0007] A pressing bracket, which is arranged to be installed above the device to be pressed. A horizontal channel and a vertical channel are defined inside the pressing bracket, and the horizontal channel and the vertical channel are arranged to intersect and communicate with each other;

[0008] A push rod, which is installed in the horizontal channel and can move horizontally relative to the horizontal channel;

[0009] A pressure rod, which is installed in the vertical channel and can move vertically relative to the vertical channel. A first through hole for the push rod to pass through is provided on the pressure rod. The pressure rod is in inclined wedge fit with the push rod so as to move downward to press the device to be pressed and move upward to release the device to be pressed under the action of the horizontal movement of the push rod; and

[0010] A driving member, which is used to drive the push rod to move horizontally.

[0011] Through the above solution, the automatic pressing mechanism of the present invention adopts a push rod and a pressure rod in inclined wedge fit, converts the horizontal movement of the push rod into the vertical movement of the pressure rod, and makes the movement of the push rod be driven by the driving member, so as to realize the automatic pressing and releasing of the device to be pressed (such as a reactor), without manual operation. Moreover, after the pressure rod presses the device to be pressed, the push rod and the pressure rod can be self-locked, so as to meet the long-time pressing of the device to be pressed. After pressing, the driving member can be closed. That is to say, the driving member can be only used in the pressing and releasing processes, and the driving force requirement for the driving member is relatively low, and the cost is low.

[0012] In some embodiments, the push rod includes a sliding fit portion and an inclined wedge fit portion connected to each other. The sliding fit portion is in sliding fit with the horizontal channel, and the inclined wedge fit portion passes through the first through hole and is in inclined wedge fit with the pressure rod.

[0013] In some embodiments, the horizontal channel is a cylindrical channel, the sliding fit portion is a cylinder, the inclined wedge fit portion is a wedge block extending axially outward from one end of the sliding fit portion. The size of the inclined wedge fit portion in the vertical direction is smaller than that of the first through hole. The bottom surface of the inclined wedge fit portion is in inclined plane fit with the bottom wall surface of the first through hole. A chute extending along its extending direction is recessed on the top surface of the inclined wedge fit portion. The bottom surface of the chute is formed as an inclined plane with the same inclined direction as the bottom surface of the inclined wedge fit portion. A slider is slidably arranged in the chute, and an insertion hole for the top end of the slider to be inserted is provided on the top wall of the first through hole.

[0014] In some embodiments, the top surface of the inclined wedge fit portion is an arc surface in sliding fit with the horizontal channel.

[0015] In some embodiments, the pressure rod is provided with a second through hole extending radially and communicating with the first through hole. The axial direction of the second through hole is perpendicular to the axial direction of the first through hole. A roller is arranged in the second through hole, and the roller has a cutting surface in inclined plane fit with the bottom surface of the inclined wedge fit portion.

[0016] In some embodiments, the bottom wall surface of the first through hole near the sliding fit portion is formed as an inclined surface that mates with the bottom surface of the wedge fit portion, and the bottom wall surface of the first through hole far from the sliding fit portion is formed as a plane.

[0017] In some embodiments, the vertical channel divides the horizontal channel into a left channel and a right channel. A left sleeve is fixedly arranged in the left channel, and a right sleeve is fixedly arranged in the right channel. The top surface of the wedge fit portion is formed as an arc surface that slidably mates with the left sleeve, and the sliding fit portion is arranged in the right sleeve and slidably mates with the right sleeve.

[0018] In some embodiments, the horizontal channel divides the vertical channel into an upper channel and a lower channel. An upper sleeve is fixedly arranged in the upper channel, and a lower sleeve is fixedly arranged in the lower channel. The pressing rod is arranged in the upper sleeve and the lower sleeve and slidably mates with the upper sleeve and the lower sleeve.

[0019] In some embodiments, the driving member is a pressing cylinder, which is hermetically installed at the opening of the first end of the horizontal channel, and the piston rod of the pressing cylinder is connected to the push rod.

[0020] In some embodiments, the automatic pressing mechanism further includes an auxiliary driving member hermetically installed at the opening of the second end of the horizontal channel. The auxiliary driving member is used to assist the driving member to drive the push rod to move horizontally.

[0021] In some embodiments, the piston rod of the pressing cylinder is connected to the push rod through a connecting rod.

[0022] In some embodiments, the auxiliary driving member is an auxiliary releasing cylinder, and the piston rod of the auxiliary releasing cylinder extends into the horizontal channel to strike the push rod. Preferably, an impact block is provided at the end of the piston rod of the auxiliary releasing cylinder.

[0023] In some embodiments, the pressing bracket includes a main body portion and a connecting portion. The horizontal channel and the vertical channel are defined by the main body portion, and the connecting portion is connected below the main body portion.

[0024] In some embodiments, the automatic pressing mechanism further includes a pressing head connected to the bottom end of the pressing rod and an end cover hermetically installed at the top end of the vertical channel.

[0025] On the other hand, the present invention provides a reaction device, which includes a reaction kettle and the automatic pressing mechanism described above. The reaction kettle includes a kettle body, a kettle cover covering the top of the kettle body, and a sealing ring clamped between the kettle body and the kettle cover. The automatic pressing mechanism is arranged above the kettle cover and is used to press the kettle cover onto the kettle body.

[0026] In some embodiments, the reaction device further includes a support frame, which includes a top plate and a bottom plate spaced below the top plate. The kettle body is arranged on the bottom plate, and a stepped hole for placing the kettle cover is arranged on the top plate. The automatic pressing mechanism is fixedly arranged on the top plate and makes the pressing rod correspond to the kettle cover.

[0027] Other features and advantages of the present invention will be described in detail in the subsequent specific embodiment part. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0029] Figure 1 is a perspective view of an embodiment of the automatic pressing mechanism in the present invention;

[0030] Figure 2 is Figure 1 a side view of the automatic pressing mechanism in

[0031] Figure 3 is Figure 2 an A-A cross-sectional view of the automatic pressing mechanism in

[0032] Figure 4 is Figure 1 a perspective view of the pressing support of the automatic pressing mechanism in

[0033] Figure 5 is Figure 4 a side view of the pressing support in

[0034] Figure 6 is Figure 5 a B-B cross-sectional view of the pressing support in

[0035] Figure 7 is Figure 1 a front view of the cooperation between the push rod and the slider and roller of the automatic pressing mechanism in

[0036] Figure 8 is Figure 7 a top perspective view after removing the roller in

[0037] Figure 9 isFigure 7 The bottom-up perspective view after removing the roller in

[0038] Figure 10 is Figure 1 The top-down perspective view of the push rod of the automatic pressing mechanism in

[0039] Figure 11 is Figure 1 The perspective view of the pressure rod of the automatic pressing mechanism in

[0040] Figure 12 is Figure 11 The front view of the pressure rod in

[0041] Figure 13 is Figure 12 The C-C cross-sectional view of the pressure rod in

[0042] Figure 14 is Figure 1 The perspective view of the cooperation between the pressure rod and the push rod of the automatic pressing mechanism in

[0043] Figure 15 is the front view of an implementation manner of the reaction device in the present invention;

[0044] Figure 16 is Figure 15 The rear perspective view of the reaction device in

[0045] Figure 17 is Figure 15 The bottom-up perspective view of the reaction device in

[0046] Figure 18 is Figure 15 The top-down perspective view of the reaction device in

[0047] Figure 19 is Figure 15 The right view of the reaction device in

[0048] Figure 20 is Figure 15 The left view of the reaction device in

[0049] Figure 21 is Figure 20 The D-D cross-sectional view of the reaction device in

[0050] Explanation of reference numerals

[0051] 10 - Automatic pressing mechanism, 11 - Pressing bracket, 110 - Mounting plate, 111 - Horizontal channel, 112 - Vertical channel, 113 - Left sleeve, 114 - Right sleeve, 115 - Upper sleeve, 116 - Lower sleeve, 117 - Main body part, 118 - Connecting part, 12 - Push rod, 121 - Sliding fit part, 1211 - Clamping groove, 122 - Wedge fit part, 1221 - Slide groove, 13 - Pressing rod, 131 - First through hole, 132 - Insertion hole, 133 - Second through hole, 14 - Pressing cylinder, 141 - Connecting rod, 15 - Slide block, 151 - Sliding part, 152 - Insertion part, 16 - Roller, 161 - Cutting surface, 17 - Pressing head, 18 - Auxiliary release cylinder, 181 - Impact block, 19 - End cover, 20 - Reactor, 21 - Kettle body, 22 - Kettle cover, 23 - Sealing ring, 30 - Support frame, 31 - Top plate, 311 - Step hole, 32 - Bottom plate, 33 - Column, 34 - Support plate, 35 - Placing rack. Detailed implementation manners

[0052] The following further describes in detail the implementation manners of the present invention in conjunction with the drawings. The detailed description and drawings of the following implementation manners are used to exemplarily illustrate the principle of the present invention, but cannot be used to limit the scope of the present invention. The present invention can be implemented in many different forms, not limited to the specific implementation manners disclosed in the text, but including all technical solutions falling within the scope of the claims.

[0053] These implementation manners of the present invention are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values described in these implementation manners should be interpreted as merely exemplary, rather than as a limitation.

[0054] It should be noted that in the description of the present invention, unless otherwise specified, the meaning of "a plurality" is greater than or equal to two; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0055] In addition, the "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are merely used to distinguish different parts. "Vertical" does not mean strictly vertical, but within the allowable error range. "Parallel" does not mean strictly parallel, but within the allowable error range. Words such as "comprising" or "including" mean that the elements before this word cover the elements listed after this word, and do not exclude the possibility of also covering other elements.

[0056] It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0057] All terms used in the present invention have the same meanings as those understood by those of ordinary skill in the art to which the present invention pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as those, should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0058] Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the specification.

[0059] On the one hand, the present invention provides an automatic pressing mechanism. Refer to Figures 1 - 3, the automatic pressing mechanism 10 includes a pressing bracket 11, a push rod 12, a pressing rod 13 and a driving member. Among them, the pressing bracket 11 is arranged to be mounted above the device to be pressed. Inside the pressing bracket 11, a horizontal channel (i.e., a channel extending in the horizontal direction) 111 and a vertical channel (i.e., a channel extending in the vertical direction) 112 are defined. The horizontal channel 111 and the vertical channel 112 are arranged to intersect and communicate with each other. That is to say, the horizontal channel 111 and the vertical channel 112 together form a cross-shaped channel. The push rod 12 is installed in the horizontal channel 111 and can move horizontally relative to the horizontal channel 111. That is to say, the push rod 12 can reciprocate along the extending direction of the horizontal channel 111. The pressing rod 13 is installed in the vertical channel 112 and can move vertically relative to the vertical channel 112. That is to say, the pressing rod 13 can reciprocate along the extending direction of the vertical channel 112. A first through hole 131 for the push rod 12 to pass through is provided on the pressing rod 13 (see Figures 11 - 14 ). The pressing rod 13 and the push rod 12 are in inclined wedge fit so as to move downward to press the device to be pressed and move upward to release the device to be pressed under the action of the horizontal movement of the push rod 12 (see Figure 3 . When the push rod 12 moves horizontally to the left, it pushes the pressing rod 13 to move downward to press the device to be pressed; when the push rod 12 moves horizontally to the right, it pushes the pressing rod 13 to move upward to release the device to be pressed). The driving member is used to drive the push rod 12 to move horizontally.

[0060] Through the above scheme, the automatic pressing mechanism of the present invention adopts the push rod 12 and the pressing rod 13 in inclined wedge fit, converts the horizontal movement of the push rod 12 into the vertical movement of the pressing rod 13, and enables the movement of the push rod 12 to be driven by the driving member, which can realize the automatic pressing and releasing of the device to be pressed (such as a reactor) without manual operation. Moreover, after the pressing rod 13 presses the device to be pressed, the push rod 12 and the pressing rod 13 can be self-locked, so as to meet the long-time pressing of the device to be pressed. After pressing, the driving member can be turned off. That is to say, the driving member can be used only in the pressing and releasing processes, and the driving force requirement for the driving member is relatively low, and the cost is low.

[0061] In the present invention, the inclined wedge pressing structure composed of the push rod 12 and the pressing rod 13 in inclined wedge fit not only has a self-locking function, but also has a force-increasing function, and a relatively large pressing force can be obtained by using a driving member with a relatively small driving force. For example, a relatively small air cylinder can be used as the driving member, which can avoid the risk of oil leakage in the hydraulic system caused by using an oil cylinder.

[0062] In the present invention, the pressing bracket 11, the push rod 12 and the pressing rod 13 can have any appropriate structures as long as their functions can be realized.

[0063] Specifically, for an embodiment of the pressing bracket 11 according to the present invention, see Figures 4 - 6, the pressing bracket 11 includes a main body portion 117 and a connecting portion 118. A horizontal channel 111 and a vertical channel 112 are defined inside the main body portion 117. The connecting portion 118 is connected below the main body portion 117 and is used to realize the connection and fixation of the pressing bracket 11. Among them, the main body portion 117 can be a column with a cross-shaped channel inside. The two connecting portions 118 respectively extend downward from the bottom of the main body portion 117 in the entire axial direction of the main body portion 117, and are symmetrically arranged about the axis of the main body portion 117. The connecting portion 118 is generally L-shaped. Through the above settings, the distance between the two connecting portions 118 can provide space for the movement of the pressure rod 13 and the cooperation with the device to be pressed, and realize the stable installation of the pressing bracket 11.

[0064] According to an embodiment of the push rod 12 of the present invention, refer to Figures 7 - 10 , the push rod 12 includes a sliding fit portion 121 and a wedge fit portion 122 connected to each other. The sliding fit portion 121 is in sliding fit with the horizontal channel 111, and the wedge fit portion 122 passes through the first through hole 131 and is in wedge fit with the pressure rod 13.

[0065] Among them, refer to Figures 3 - 14 , the horizontal channel 111 is a cylindrical channel, the sliding fit portion 121 is a cylinder, the wedge fit portion 122 is a wedge-shaped block extending axially outward from one end of the sliding fit portion 121. The size of the wedge fit portion 122 in the vertical direction is smaller than that of the first through hole 131. The bottom surface of the wedge fit portion 122 is in inclined surface fit with the bottom wall surface of the first through hole 131. A sliding groove 1221 extending along its extending direction is formed in the top surface of the wedge fit portion 122. The groove bottom surface of the sliding groove 1221 is formed as an inclined surface having the same inclination direction as the bottom surface of the wedge fit portion 122. A slider 15 is slidably arranged in the sliding groove 1221. An insertion hole 132 for inserting the top end of the slider 15 is provided on the top wall of the first through hole 131.

[0066] Among them, as Figure 7 shown, the slider 15 can include a sliding portion 151 and an insertion portion 152 connected to the top of the sliding portion 151. The shape of the sliding portion 151 is adapted to the shape of the sliding groove 1221. The bottom surface of the sliding portion 151 is in inclined surface fit with the groove bottom surface of the sliding groove 1221. The shape of the insertion portion 152 is adapted to the shape of the insertion hole 132. For example, the sliding portion 151 can be a wedge-shaped block with an inclined bottom surface, and the insertion portion 152 can be a cylindrical block.

[0067] Among them, refer to 3 and Figure 8 , the top surface of the wedge fit portion 122 is an arc surface in sliding fit with the horizontal channel 111. That is to say, the top surface of the wedge fit portion 122 is coplanar with the top surface of the sliding fit portion 121.

[0068] The push rod 12 is preferably an integral part, refer to Figure 10, the push rod 12 can be formed by processing a cylindrical rod.

[0069] In an embodiment of the pressure rod 13 according to the present invention, referring to Figures 11 - 13 , the pressure rod 13 is a cylindrical rod. It can be understood that the vertical channel 112 is a cylindrical channel. The first through hole 131 is arranged through the pressure rod 13 along its radial direction, that is to say, the axial direction of the first through hole 131 extends along the radial direction of the pressure rod 13. The first through hole 131 is a square hole, and the width of the first through hole 131 is adapted to the thickness of the wedge mating portion 122. The pressure rod 13 is provided with a second through hole 133 extending along its radial direction and communicating with the first through hole 131. The axial direction of the second through hole 133 is perpendicular to the axial direction of the first through hole 131. The second through hole 133 is a circular hole, and a roller 16 is arranged in the second through hole 133. The roller 16 has a cut surface 161 that is inclinedly mated with the bottom surface of the wedge mating portion 122. By arranging the roller 16 on the pressure rod 13, during the movement of the push rod 12, the roller 16 can rotate to adapt to the push rod 12. That is to say, the push rod 12, the pressure rod 13, the slider 15, and the roller 16 together form a wedge pressing structure (refer to Figure 14 ).

[0070] Of course, in other embodiments, the roller 16 may not be provided, and the bottom wall surface of the first through hole 131 may be directly formed into an inclined surface that mates with the bottom surface of the push rod 12.

[0071] As Figure 13 shown, the bottom wall surface of the first through hole 131 close to the sliding mating portion 121 is formed into an inclined surface that mates with the bottom surface of the wedge mating portion 122, and the bottom wall surface of the first through hole 131 far from the sliding mating portion 121 is formed into a plane. That is to say, the inclined bottom wall surface of the first through hole 131 and the cut surface 161 of the roller 16 together are inclinedly mated with the bottom surface of the wedge mating portion 122.

[0072] In the present invention, in order to facilitate the mating movement and installation of the push rod 12 and the pressure rod 13, as Figure 3 shown, the vertical channel 112 divides the horizontal channel 111 into a left channel and a right channel. A left sleeve 113 is fixedly arranged in the left channel, and a right sleeve 114 is fixedly arranged in the right channel. The top surface of the wedge mating portion 122 is formed into an arc surface that slidably mates with the left sleeve 113. The sliding mating portion 121 is arranged in the right sleeve 114 and slidably mates with the right sleeve 114. The horizontal channel 111 divides the vertical channel 112 into an upper channel and a lower channel. An upper sleeve 115 is fixedly arranged in the upper channel, and a lower sleeve 116 is fixedly arranged in the lower channel. The pressure rod 13 is arranged in the upper sleeve 115 and the lower sleeve 116 and slidably mates with the upper sleeve 115 and the lower sleeve 116.

[0073] In the present invention, referring to Figures 1 - 3, the driving member can be a pressing cylinder 14, and the pressing cylinder 14 is hermetically installed at the opening of the first end of the horizontal channel 111 (see the right end shown in Figure 1 ). The piston rod of the pressing cylinder 14 is connected to the push rod 12. Among them, the connection between the piston rod of the pressing cylinder 14 and the push rod 12 can be a direct connection or an indirect connection. For example Figure 3 shown, the piston rod of the pressing cylinder 14 can be indirectly connected to the push rod 12 through a connecting rod 141, which can improve the reliability of the connection between the piston rod of the pressing cylinder 14 and the push rod 12. Specifically, one end of the connecting rod 141 can be fixedly connected to the piston rod of the pressing cylinder 14 by means of, for example, plugging, and the other end of the connecting rod 141 can be detachably connected to the push rod 12 by means of clamping. Combining Figure 8 shown, the other end of the connecting rod 141 can be clamped in the clamping groove 1211 at the right end of the sliding fit portion 121.

[0074] During the actual use process, the long-term pressing of the pressure rod 13 on the device to be pressed may cause the push rod 12 and the pressure rod 13 to be stuck, resulting in the piston rod of the pressing cylinder 14 being unable to retract smoothly. Therefore, in order to facilitate the smooth retraction of the piston rod of the pressing cylinder 14, for example Figures 1 - 3 shown, the automatic pressing mechanism 10 may further include an auxiliary driving member hermetically installed at the opening of the second end of the horizontal channel 111 (see the left end shown in Figure 1 ). The auxiliary driving member is used to assist the driving member to drive the push rod 12 to move horizontally, so that the piston rod of the pressing cylinder 14 can retract smoothly.

[0075] According to an embodiment of the auxiliary driving member of the present invention, see Figure 3 , the auxiliary driving member can be an auxiliary release cylinder 18, and the piston rod of the auxiliary release cylinder 18 extends into the horizontal channel 111 to hit the push rod 12. That is to say, when it is necessary to retract the piston rod of the pressing cylinder 14 and make the push rod 12 move to the right, a rightward impact force can be applied to the push rod 12 through the piston rod of the auxiliary release cylinder 18, so that the push rod 12 moves to the right and the piston rod of the pressing cylinder 14 retracts smoothly. That is to say, the inclined wedge pressing structure locks the device to be pressed by the extension of the piston rod of the pressing cylinder 14, and the pressing device is released by the retraction of the piston rod of the pressing cylinder 14 and the extension of the piston rod of the auxiliary release cylinder 18.

[0076] In order to improve the reliability and flexible adaptability of the impact, see Figure 3 , an impact block 181 can also be connected to the end of the piston rod of the auxiliary release cylinder 18 to hit the left end face of the push rod 12 through the impact block 181.

[0077] See Figures 1 - 3, the pressing cylinder 14 and the auxiliary releasing cylinder 18 can be hermetically installed on the pressing bracket 11 through the mounting plate 110 respectively.

[0078] In the present invention, referring to Figures 1 - 3 , the automatic pressing mechanism 10 may further include a pressing head 17 connected to the bottom end of the pressing rod 13 and an end cover 19 hermetically installed at the top end of the vertical channel 112. Among them, the pressing head 17 is used to contact and press the device to be pressed, and the pressing head 17 can have any appropriate structure. Referring to Figure 7 , the pressing head 17 can be an inverted U-shaped member. In addition, the end cover 19, together with the pressing cylinder 14, the auxiliary releasing cylinder 18, and the pressing rod 13, closes the cross-shaped channel in the pressing bracket 11 into a closed channel, so as to achieve automatic sealing and pressing.

[0079] On the other hand, the present invention provides a reaction device. Referring to Figures 15 - 21 , the reaction device includes a reaction kettle 20 and an automatic pressing mechanism 10. The reaction kettle 20 includes a kettle body 21, a kettle cover 22 arranged above the kettle body 21, and a sealing ring 23 clamped between the kettle body 21 and the kettle cover 22. The automatic pressing mechanism 10 is arranged above the kettle cover 22 and is used to press the kettle cover 22 onto the kettle body 21.

[0080] By arranging the automatic pressing mechanism 10 with a clever structure, the kettle body 21 and the kettle cover 22 are sealed through the automatic pressing mechanism 10 and remain in a sealed state for a long time until the automatic pressing mechanism 10 performs a loosening action. That is to say, the opening and closing operation of the reaction kettle 20 is realized by the pressing and loosening of the automatic pressing mechanism 10 on the kettle cover 22, and the kettle body 21 and the kettle cover 22 are two separate parts, which is convenient for maintenance and replacement; the automatic pressing mechanism 10 can be controlled by an external air source and an electromagnetic valve to realize full-process unmanned automatic operation.

[0081] Among them, it can be understood that the reaction kettle 20 is the device to be pressed mentioned above. Of course, the device to be pressed can also be any other device that needs to be pressed and sealed.

[0082] Among them, as Figure 21 shown, a circular groove is provided at the top edge of the kettle body 21, and the sealing ring 23 is embedded in the circular groove. There is no connection between the kettle body 21 and the kettle cover 22, and only the kettle cover 22 is pressed by the automatic pressing mechanism 10. The kettle body 21 is sealed through the sealing ring 23 and the downward pressure of the kettle cover 22. The automatic pressing mechanism 10 performs self-locking, eliminating the need for manual disassembly and assembly, which can improve work efficiency, reduce labor costs and the labor pressure of workers.

[0083] Referring to Figures 15 - 21, the reaction device may further include a support frame 30. The support frame 30 includes a top plate 31 and a bottom plate 32 spaced below the top plate 31. The kettle body 21 is disposed on the bottom plate 32. A stepped hole 311 for placing the kettle cover 22 is provided on the top plate 31. The automatic pressing mechanism 10 is fixedly arranged on the top plate 31 and the pressing rod 13 is arranged corresponding to the kettle cover 22. Specifically, the automatic pressing mechanism 10 is fixedly connected to the top plate 31 through the connecting portion 118 of the pressing support 11.

[0084] It can be understood that the kettle cover 22 has a stepped structure adapted to the stepped hole 311. By placing the kettle cover 22 in the stepped hole 311, the kettle cover 22 can be prevented from falling off the top plate 31 when there is no support from the kettle body 21.

[0085] See Figures 15 - 21 , the support frame 30 further includes columns 33. The top plate 31 and the bottom plate 32 are fixedly connected by a plurality of columns 33. A placement rack 35 for placing the kettle body 21 may be fixedly arranged on the bottom plate 32. The position of the placement rack 35 corresponds to the stepped hole 311, and the placement rack 35 can realize the positioning of the kettle body 21. A plurality of support plates 34 may also be provided below the bottom plate 32.

[0086] When the above reaction device is in use, first take out the kettle body 21 from the placement rack 35, put the material into the kettle body 21, embed the sealing ring 23 into the annular groove on the kettle body 21, and then put the kettle body 21 back on the placement rack 35. Open the air source and connect to the extending end of the piston rod of the pressing cylinder 14. Lock the kettle cover 22 by the extension of the piston rod of the pressing cylinder 14. The kettle cover 22 is sealed with the kettle body 21 through the sealing ring 23, ensuring that the material reacts effectively in the reaction kettle 20 and improving the sealing performance. After the reaction is completed, connect the air source to the retracting end of the piston rod of the pressing cylinder 14, and at the same time connect to the extending end of the piston rod of the auxiliary release cylinder 18. Loosen the kettle cover 22 by the retraction of the piston rod of the pressing cylinder 14.

[0087] It should be noted that the fixed connections between the various components in the present invention mentioned above can be made by any suitable connection method, such as bolt connection.

[0088] So far, the various embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details well known in the art have not been described. Those skilled in the art can clearly understand how to implement the technical solutions disclosed here based on the above description.

[0089] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration purposes and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified or equivalent substitutions can be made for some technical features without departing from the scope and spirit of the present invention. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. An automatic pressing mechanism, characterized in that, the automatic pressing mechanism (10) includes: a pressing bracket (11), the pressing bracket (11) is arranged to be installed above the device to be pressed, a horizontal channel (111) and a vertical channel (112) are defined inside the pressing bracket (11), and the horizontal channel (111) and the vertical channel (112) are arranged to intersect and communicate with each other; a push rod (12), the push rod (12) is installed in the horizontal channel (111) and can move horizontally relative to the horizontal channel (111); a pressing rod (13), the pressing rod (13) is installed in the vertical channel (112) and can move vertically relative to the vertical channel (112), a first through hole (131) for the push rod (12) to pass through is provided on the pressing rod (13), and the pressing rod (13) is in inclined wedge fit with the push rod (12) to move downward to press the device to be pressed and move upward to release the device to be pressed under the action of the horizontal movement of the push rod (12); and a driving member, the driving member is used to drive the push rod (12) to move horizontally.

2. The automatic pressing mechanism according to claim 1, characterized in that, the push rod (12) includes a sliding fit portion (121) and an inclined wedge fit portion (122) connected to each other, the sliding fit portion (121) is in sliding fit with the horizontal channel (111), and the inclined wedge fit portion (122) passes through the first through hole (131) and is in inclined wedge fit with the pressing rod (13).

3. The automatic pressing mechanism according to claim 2, characterized in that, the horizontal channel (111) is a cylindrical channel, the sliding fit portion (121) is a cylinder, the inclined wedge fit portion (122) is a wedge block extending axially outward from one end of the sliding fit portion (121), the dimension of the inclined wedge fit portion (122) in the vertical direction is smaller than the first through hole (131), the bottom surface of the inclined wedge fit portion (122) is in inclined plane fit with the bottom wall surface of the first through hole (131), a chute (1221) extending along its extending direction is recessed on the top surface of the inclined wedge fit portion (122), the bottom surface of the chute (1221) is formed as an inclined plane with the same inclined direction as the bottom surface of the inclined wedge fit portion (122), a slider (15) is slidably arranged in the chute (1221), and a jack (132) for the top end of the slider (15) to be inserted is provided on the top wall of the first through hole (131).

4. The automatic pressing mechanism according to claim 3, characterized in that, the top surface of the inclined wedge fit portion (122) is an arc surface in sliding fit with the horizontal channel (111), and / or The pressure rod (13) is provided with a second through hole (133) extending radially thereof and communicating with the first through hole (131), the axial direction of the second through hole (133) is perpendicular to the axial direction of the first through hole (131), a roller (16) is disposed in the second through hole (133), and the roller (16) has a cut surface (161) that is in inclined surface fit with the bottom surface of the wedge mating portion (122).

5. The automatic pressing mechanism according to claim 4, wherein, the bottom wall surface of the first through hole (131) near the sliding mating portion (121) is formed as an inclined surface that mates with the bottom surface of the wedge mating portion (122), and the bottom wall surface of the first through hole (131) far from the sliding mating portion (121) is formed as a plane.

6. The automatic pressing mechanism according to claim 2, wherein, the vertical channel (112) divides the horizontal channel (111) into a left channel and a right channel, a left sleeve (113) is fixedly disposed in the left channel, a right sleeve (114) is fixedly disposed in the right channel, the top surface of the wedge mating portion (122) is formed as an arc surface that slidably mates with the left sleeve (113), and the sliding mating portion (121) is disposed in the right sleeve (114) and slidably mates with the right sleeve (114); and / or the horizontal channel (111) divides the vertical channel (112) into an upper channel and a lower channel, an upper sleeve (115) is fixedly disposed in the upper channel, a lower sleeve (116) is fixedly disposed in the lower channel, and the pressure rod (13) is disposed in the upper sleeve (115) and the lower sleeve (116) and slidably mates with the upper sleeve (115) and the lower sleeve (116).

7. The automatic pressing mechanism according to any one of claims 1-6, wherein, the driving member is a pressing cylinder (14), the pressing cylinder (14) is hermetically installed at the first end opening of the horizontal channel (111), and the piston rod of the pressing cylinder (14) is connected to the push rod (12); and / or the automatic pressing mechanism (10) further includes an auxiliary driving member hermetically installed at the second end opening of the horizontal channel (111), and the auxiliary driving member is used to assist the driving member to drive the push rod (12) to move horizontally.

8. The automatic pressing mechanism according to claim 7, wherein, the piston rod of the pressing cylinder (14) is connected to the push rod (12) through a connecting rod (141), and / or the auxiliary driving member is an auxiliary releasing cylinder (18), and the piston rod of the auxiliary releasing cylinder (18) extends into the horizontal channel (111) to strike the push rod (12). Preferably, an impact block (181) is provided at the end of the piston rod of the auxiliary releasing cylinder (18).

9. The automatic pressing mechanism according to any one of claims 1-6, wherein, The pressing bracket (11) includes a main body portion (117) and a connecting portion (118). The horizontal channel (111) and the vertical channel (112) are defined by the main body portion (117), and the connecting portion (118) is connected below the main body portion (117); and / or The automatic pressing mechanism (10) further includes a pressing head (17) connected to the bottom end of the pressing rod (13) and an end cover (19) hermetically installed at the top end of the vertical channel (112).

10. A reaction device Characterized in that It includes a reaction kettle (20) and the automatic pressing mechanism according to any one of claims 1-9. The reaction kettle (20) includes a kettle body (21), a kettle cover (22) covering the top of the kettle body (21), and a sealing ring (23) sandwiched between the kettle body (21) and the kettle cover (22). The automatic pressing mechanism (10) is arranged above the kettle cover (22) and is used to press the kettle cover (22) against the kettle body (21).

11. The reaction device according to claim 10 Characterized in that The reaction device further includes a support frame (30). The support frame (30) includes a top plate (31) and a bottom plate (32) spaced below the top plate (31). The kettle body (21) is arranged on the bottom plate (32). A stepped hole (311) for placing the kettle cover (22) is provided on the top plate (31). The automatic pressing mechanism (10) is fixedly arranged on the top plate (31) and the pressing rod (13) is arranged corresponding to the kettle cover (22).

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