Edible fungus storage container with locking structure

Abstract

The present invention provides an edible fungus storage container with a locking structure, which relates to the field of edible fungus storage containers and comprises: a control sub-seat, which is rotatably connected to the top of a locking main seat, a cover assembly having different installation modes, which can be realized by different operation modes, so as to adapt to use in different use environments, and the cover assembly has a self-locking structure, so as to ensure that the cover assembly can stably close and seal the container bottle body, and can effectively avoid the occurrence of accidental opening and damage during transportation or accidental opening by children, thereby solving the problem that the existing edible fungus storage container has no self-locking structure to prevent accidental opening, is prone to loosening, etc., resulting in failure of the sealing effect, and is accidentally opened by children in the family, resulting in damage to the edible fungi inside or accidental eating.

Description

Technical Field

[0001] The invention relates to the technical field of edible fungus storage containers, and in particular to an edible fungus storage container with a locking structure. Background Art

[0002] Edible fungi refer to edible mushrooms (large fungi) with large fruiting bodies, commonly known as mushrooms. In order to facilitate the storage and consumption of edible fungi, they can be preserved by soaking like canned food, that is, soaking the edible fungi in a specific solution, such as salt water, sugar water, seasoning liquid, etc., to increase flavor and extend the shelf life.

[0003] However, as for the currently existing storage containers with edible fungi, they are sealed by means of simple threaded caps, and there is no self-locking structure to prevent accidental opening. As a result, the storage containers of edible fungi are easily loosened during transportation, resulting in failure of the sealing effect. At the same time, there is no self-locking structure to prevent accidental opening, which may cause children in the family to open the containers by mistake, resulting in damage or accidental ingestion of the edible fungi inside. The stability is poor and the practicality is not high. Summary of the invention

[0004] The disclosed embodiments relate to an edible fungus storage container with a locking structure, which comprises a capping assembly, which can be installed at the bottle mouth of the top of the container bottle body in a threaded manner, so as to achieve the purpose of sealing the inside of the container bottle body for storing edible fungi. At the same time, the capping assembly has different installation methods and can be implemented through different operation methods to adapt to use in different usage environments. The capping assembly has a self-locking structure, so as to ensure that the capping assembly can stably close and seal the container bottle body, and can effectively avoid the occurrence of accidental opening and damage during transportation or accidental opening by children, and has strong flexibility, adaptability, stability and practicality.

[0005] According to a first aspect of the present disclosure, there is provided an edible fungus storage container with a locking structure, which specifically comprises: a container body and a sealing assembly, wherein the sealing assembly comprises a locking main seat, a control sub-seat, a positioning column and a locking control column; the locking main seat is inserted into the bottle mouth at the top of the container body, and the control sub-seat is rotatably connected to the top of the locking main seat, the positioning column is inserted into the bottom of the locking main seat, the top of the locking control column is inserted into the interior of the control sub-seat, and the bottom of the locking control column is inserted into the interior of the locking main seat.

[0006] In at least some embodiments, the bottle mouth at the top of the container body is provided with threads on the outside, and the locking main seat is screwed to the bottle mouth at the top of the container body through the threads.

[0007] In at least some embodiments, a positioning groove is provided at the top of the inner cavity of the container body, and a positioning block is provided at the bottom of the positioning column. The positioning block is inserted into the positioning groove, and the block cross-section of the positioning block is a regular polygon.

[0008] In at least some embodiments, a control disk is provided on the top of the positioning column, and the control disk is inserted into the interior of the locking main seat. A locking top spring is provided at the bottom of the control disk, and the two ends of the locking top spring respectively abut against the bottom of the control disk and the interior of the locking main seat, and the bottom end of the locking control column abuts against the top of the control disk.

[0009] In at least some embodiments, a locking tooth ring is provided on the top of the control disk and inside the locking main seat, and the cross-sectional shape of a single tooth of the locking tooth ring is a right triangle. Under the action of the top spring of the locking top spring, the teeth of the locking tooth ring of the control disk and the locking main seat are plugged into each other, and when the locking main seat is rotated in the direction of loosening, the straight edges of the teeth of the locking tooth ring of the control disk and the locking main seat are clamped into each other.

[0010] In at least some embodiments, an integral track block is provided inside the locking main seat, and an integral track groove is provided at the bottom of the locking control column, and the integral track block is inserted into the integral track groove.

[0011] In at least some embodiments, a multi-purpose top spring is provided on the top of the integral track block, and two ends of the multi-purpose top spring respectively abut against the top of the integral track block and the inside of the locking column, and the elastic force of the multi-purpose top spring is greater than the elastic force of the locking top spring.

[0012] In at least some embodiments, a spiral functional groove is disposed on the outside of the locking column, and a functional protrusion is disposed on the inside of the control sub-base, and the functional protrusion is plugged into the inside of the functional groove.

[0013] In at least some embodiments, locking pin holes are provided inside the locking main seat and the control sub-seated, and when the control sub-seated is not twisted by external force, the locking pin holes of the locking main seat and the control sub-seated are misaligned with each other.

[0014] The edible fungus storage container with a locking structure provided by the present invention has the following beneficial effects.

[0015] The capping assembly can be installed at the bottle mouth on the top of the container bottle body in a threaded manner, so as to achieve the purpose of sealing the inside of the container bottle body for storing edible fungi. At the same time, the capping assembly has different installation methods and can be implemented through different operation methods to adapt to use in different environments. The capping assembly has a self-locking structure, so as to ensure that the capping assembly can stably close and seal the container bottle body, and can effectively avoid the occurrence of accidental opening and damage during transportation or accidental opening by children, thereby improving flexibility, adaptability, stability and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0017] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the internal structure when the sealing cap assembly of the present invention is screwed and installed on the top of the container bottle body.

[0020] Figure 3 The present invention Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0021] Figure 4 It is a schematic structural diagram of the container body of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the disassembled cover assembly of the present invention.

[0023] Figure 6 The present invention Figure 5 Schematic diagram of the structure at the bottom.

[0024] Figure 7 It is a schematic diagram of the internal structure when the main seat or the control sub-seat is rotated to lock the present invention to realize the tightening installation operation.

[0025] Figure 8 The present invention Figure 7 Schematic diagram of the structure with the B area enlarged.

[0026] Fig. 9 The present invention Figure 7 Schematic diagram of the internal structure when the central locking main seat reaches the maximum tightening force and controls the auxiliary seat to rotate independently.

[0027] Fig.10 The present invention Fig. 9 Schematic diagram of the enlarged structure of part C in the middle.

[0028] List of reference numerals: 1. container body; 101. positioning groove; 2. capping assembly; 201. locking main seat; 2011. locking gear ring; 2012. integral track block; 2013. multi-purpose top spring; 202. control sub-seat; 2021. functional protrusion; 2022. locking pin hole; 203. positioning column; 2031. positioning block; 2032. control panel; 2033. locking top spring; 204. locking column; 2041. integral track groove; 2042. functional groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Please refer to Figures 1 to 10 As shown:

[0031] Embodiment 1: The present invention provides an edible fungus storage container with a locking structure, comprising a container bottle body 1 and a sealing assembly 2, the sealing assembly 2 comprising a locking main seat 201, a control sub-seat 202, a positioning column 203 and a locking control column 204; the locking main seat 201 is inserted into the bottle mouth at the top of the container bottle body 1, and the control sub-seat 202 is rotatably connected to the top of the locking main seat 201, the positioning column 203 is inserted into the bottom of the locking main seat 201, the top of the locking control column 204 is inserted into the inside of the control sub-seat 202, and the bottom of the locking control column 204 is inserted into the inside of the locking main seat 201.

[0032] In the embodiment of the present disclosure, a thread is provided on the outside of the bottle mouth at the top of the container bottle body 1, and the locking main seat 201 is screwed to the bottle mouth at the top of the container bottle body 1 through a thread. In use, the sealing cap assembly 2 is installed on the container bottle body 1 in a threaded manner, thereby realizing a sealed closure operation on the container bottle body 1, and the sealing cap assembly 2 has different installation methods and can be realized through different operation methods. When the locking main seat 201 is rotated alone, it is no different from the installation method of the traditional sealing cap. When the locking main seat 201 is rotated, it can be screwed into the bottle mouth position through the thread of the container bottle body 1, thereby realizing the locking and sealing functions, and the inner of the container bottle body 1 A positioning groove 101 is provided at the top of the cavity, and a positioning block 2031 is provided at the bottom of the positioning column 203. The positioning block 2031 is inserted into the inside of the positioning groove 101, and the block cross-section of the positioning block 2031 is a regular polygon. Since the positioning groove 101 limits the positioning block 2031 so that the positioning column 203 cannot rotate, during the rotation of the locking main seat 201, the control disk 2032 and the locking tooth ring 2011 of the locking main seat 201 The bevel edges of the gear teeth will conflict with each other, squeeze and avoid each other, so that the control disk 2032 moves downward to avoid and compress the locking top spring 2033, thereby not hindering the rotation of the locking main seat 201, and it is easy to use.

[0033] In the embodiment of the present disclosure, a control disk 2032 is provided on the top of the positioning column 203, and the control disk 2032 is plugged into the interior of the locking main seat 201, a locking top spring 2033 is provided on the bottom of the control disk 2032, and the two ends of the locking top spring 2033 respectively abut against the bottom of the control disk 2032 and the interior of the locking main seat 201, the bottom end of the locking control column 204 abuts against the top of the control disk 2032, the interior of the locking main seat 201 is provided with an integral track block 2012, and the bottom of the locking control column 204 is provided with an integral track groove 2041, the integral track block 2012 is plugged into the interior of the integral track groove 2041, the top of the integral track block 2012 is provided with a multi-purpose top spring 2013, and the two ends of the multi-purpose top spring 2013 respectively abut against the top of the integral track block 2012 The elastic force of the multi-purpose top spring 2013 is greater than the elastic force of the locking top spring 2033. In use, when the locking main seat 201 is driven to rotate and lock by rotating the control sub-seating 202, the maximum tightening force can be indicated at this time, thereby avoiding damage to the cover assembly 2 or the thread caused by excessive tightening, and the use is stable. In the initial stage of tightening installation, when the control sub-seating 202 is rotated alone, at this time, under the action of the multi-purpose top spring 2013, the control sub-seating 202 and the locking column 204 are kept as a whole for use, that is, although the functional protrusion 2021 is located at the bottom of the functional groove 2042, when the control sub-seating 202 is rotated, the functional protrusion 2021 can still drive the locking column 204 to rotate through the functional groove 2042, and the locking column 2 04 During rotation, the integral track groove 2041 can drive the locking main seat 201 to rotate synchronously through the integral track block 2012, and because the elastic force of the multi-purpose top spring 2013 is greater than the elastic force of the locking top spring 2033, in the initial stage of tightening, when the locking main seat 201 follows the rotation of the control sub-seated 202, the bevel edges of the gear teeth of the control disk 2032 and the locking toothed ring 2011 of the locking main seat 201 will still conflict with each other, squeeze and avoid, and will not hinder the rotation action. In the later stage of tightening installation, as the locking main seat 201 is screwed into the depth of the top bottle mouth of the container bottle body 1, the locking resistance of the locking main seat 201 will gradually increase. The tightening (tightening) resistance of the locking main seat 201, that is, the tightening force, when the tightening resistance of the locking main seat 201 is greater than the elastic force of the multi-purpose top spring 2013 When force is applied, the locking main seat 201 will not continue to rotate with the control sub-seating 202, so that the control sub-seating 202 will rotate independently of the locking main seat 201. Therefore, in the installation operation of driving the locking main seat 201 to rotate and lock by rotating the control sub-seating 202, when it is observed that the control sub-seating 202 rotates independently of the locking main seat 201, the set tightening force is reached, and the use is stable. In the process of the control sub-seating 202 rotating independently of the locking main seat 201, the functional protrusion 2021 can drive the locking column 204 to move downward and compress the multi-purpose top spring 2013 through the functional groove 2042 to avoid the rotation of the control sub-seating 202 independently of the locking main seat 201. The device will not be stuck, and the indication when the tightening force is reached is intuitive and clear.

[0034] In the embodiment of the present disclosure, a locking tooth ring 2011 is provided on the top of the control disk 2032 and the inside of the locking main seat 201, and the cross-sectional shape of a single gear tooth of the locking tooth ring 2011 is a right triangle. Under the action of the top spring of the locking top spring 2033, the gear teeth of the control disk 2032 and the locking tooth ring 2011 of the locking main seat 201 are plugged into each other, and when the locking main seat 201 is rotated in the direction of loosening, the straight edges of the gear teeth of the control disk 2032 and the locking tooth ring 2011 of the locking main seat 201 are clamped with each other. In use, no matter in which way the sealing assembly 2 is installed on the container bottle body 1 for sealing, the sealing assembly 2 has a self-locking function, which can effectively avoid being stuck during transportation. The locking member 2032 is in the state of being easily opened and closed by the user, so that the user can easily get a hold of the locking member 2032. When the locking member 2032 is in the state of being easily opened and closed by the user, the user can easily get a hold of the locking member 2032. When the locking member 201 is in the state of being easily opened and closed by the user, the user can easily get a hold of the locking member 2032.

[0035] In the embodiment of the present disclosure, the outside of the locking column 204 is provided with a spiral functional groove 2042, and the inside of the control sub-base 202 is provided with a functional protrusion 2021, and the functional protrusion 2021 is plugged into the inside of the functional groove 2042. In use, when it is necessary to normally remove the capping assembly 2 in a tightened state, it is only necessary to rotate the control sub-base 202 in the tightening direction by a certain angle. Thereafter, while keeping the control sub-base 202, the locking main base 201 is rotated in the loosening direction with the cooperation of the remaining fingers, or the container bottle body 1 is rotated to achieve the disassembly operation. The design of disassembly in a specific way not only realizes the self-locking function of the capping assembly 2, but also realizes free disassembly and repeated installation. The operation of the installation is convenient for the storage and use of remaining edible fungi, and the use is flexible and convenient. When the control sub-mount 202 is rotated in the tightening direction, the locking main seat 201 is in the maximum tightening force state at this time, and the locking main seat 201 still cannot rotate with the control sub-mount 202. When the control sub-mount 202 is rotated, the functional protrusion 2021 can drive the locking column 204 to move downward through the functional groove 2042. When the locking column 204 moves downward, it can resist and drive the control disk 2032 to move downward, thereby releasing the clamping relationship between the control disk 2032 and the straight edge of the gear teeth of the locking tooth ring 2011 of the locking main seat 201. Thereafter, the locking main seat 201 can be rotated in the loosening direction to achieve disassembly.

[0036] Specific usage and function of this embodiment: In the present invention, the sealing cap assembly 2 is installed on the container bottle body 1 in a threaded tightening manner, so as to achieve a sealed closure operation on the container bottle body 1, and the sealing cap assembly 2 has different installation methods and can be achieved through different operation methods. When the locking main seat 201 is rotated alone, it is no different from the installation method of the traditional sealing cap. When the locking main seat 201 is rotated, it can be screwed into the bottle mouth position through the thread of the container bottle body 1, so as to achieve the locking and sealing functions. Since the positioning groove 101 prevents the positioning column 203 from rotating by limiting the positioning block 2031, the bevel edges of the gear teeth of the control disk 2032 and the locking tooth ring 2011 of the locking main seat 201 will The mutual interference, squeezing and avoiding make the control disk 2032 move downward to avoid and compress the locking top spring 2033, so as not to hinder the rotation of the locking main seat 201. When the locking main seat 201 is driven to rotate and lock by rotating the control sub-seating 202, the maximum tightening force can be indicated at this time, so as to avoid damage to the cover assembly 2 or the thread caused by excessive tightening, and the use is stable. In the initial stage of tightening installation, when the control sub-seating 202 is rotated alone, at this time, under the action of the multi-purpose top spring 2013, the control sub-seating 202 and the locking control column 204 are kept as a whole for use, that is, although the functional protrusion 2021 is located at the bottom of the functional groove 2042, the functional protrusion 2021 can still be driven by the functional groove 2042 when the control sub-seating 202 is rotated. The locking column 204 rotates, and when the locking column 204 rotates, the integral track groove 2041 can drive the locking main seat 201 to rotate synchronously through the integral track block 2012, and because the elastic force of the multi-purpose top spring 2013 is greater than the elastic force of the locking top spring 2033, in the initial stage of tightening, when the locking main seat 201 follows the rotation of the control sub-seated 202, the bevel edges of the gear teeth of the control disk 2032 and the locking toothed ring 2011 of the locking main seat 201 will still conflict with each other, squeeze and avoid, and will not hinder the rotation action. In the later stage of tightening installation, as the locking main seat 201 is screwed into the depth of the top bottle mouth of the container bottle body 1, the locking resistance of the locking main seat 201 will gradually increase. The tightening (tightening) resistance of the locking main seat 201, that is, the tightening force, when the locking main seat 201 is tightened When the resistance is greater than the elastic force of the multi-purpose top spring 2013, the locking main seat 201 will not continue to rotate with the control sub-seated 202, so that the control sub-seated 202 will rotate independently of the locking main seat 201. Therefore, in the installation operation of driving the locking main seat 201 to rotate and lock by rotating the control sub-seated 202, when it is observed that the control sub-seated 202 rotates independently of the locking main seat 201, the set tightening force is reached, and the use is stable. In the process of the control sub-seated 202 rotating independently of the locking main seat 201, the functional protrusion 2021 can drive the locking column 204 to move downward and compress the multi-purpose top spring 2013 through the functional groove 2042 to avoid the rotation of the control sub-seated 202 independently of the locking main seat 201, and the device will not be stuck.The indication when the tightening force is reached is intuitive and clear. No matter how the cover assembly 2 is installed on the container bottle body 1 for sealing, the cover assembly 2 has a self-locking function, which can effectively avoid the occurrence of accidental opening and damage during transportation or accidental opening by children. It is stable to use. When the cover assembly 2 is installed on the container bottle body 1, under the action of the locking top spring 2033, the control disk 2032 and the locking tooth ring 2011 of the locking main seat 201 are plugged into each other. Under the cooperation of the locking plate 201 and the positioning block 2031, the control plate 2032 cannot rotate by itself. When the locking main seat 201 and the control sub-seat 202 are rotated in the loosening direction, the gear straight edges of the control plate 2032 and the locking toothed ring 2011 of the locking main seat 201 will engage with each other, so that the locking main seat 201 and the control sub-seat 202 cannot rotate in the loosening direction, thereby realizing the self-locking function. When the sealing cover assembly 2 in the tightened state needs to be removed normally, it is only necessary to turn the control sub-seat 202 in the tightening direction. When the control sub-base 202 is rotated in the tightening direction, the locking main base 201 can be rotated in the loosening direction or the container bottle body 1 can be rotated with the cooperation of the other fingers while maintaining the control sub-base 202. The disassembly operation can be realized by rotating the locking main base 201 in the loosening direction or rotating the container bottle body 1. The design of disassembly in a specific way not only realizes the self-locking function of the sealing cap assembly 2, but also realizes the operation of free disassembly and repeated installation, which is convenient for the storage and use of the remaining edible fungi and is flexible and convenient to use. When the control sub-base 202 is rotated in the tightening direction, at this time, since the locking main base 201 is in the maximum tightening force state, the locking main base 201 still cannot rotate with the control sub-base 202. When the control sub-base 202 is rotated, the functional protrusion 2021 can drive the locking control column 204 to move downward through the functional groove 2042. When the locking control column 204 moves downward, it can resist and drive the control disk 2032 to move downward, thereby releasing the clamping relationship between the control disk 2032 and the gear straight edge of the locking tooth ring 2011 of the locking main base 201. After that, the locking main base 201 can be rotated in the loosening direction to realize disassembly. ,

[0037] Embodiment 2: On the basis of embodiment 1, locking pin holes 2022 are provided inside the locking main seat 201 and the control sub-seating 202. When the control sub-seating 202 is not twisted by external force, the locking pin holes 2022 of the locking main seat 201 and the control sub-seating 202 are misaligned with each other. This design makes it possible for the locking control column 204 to be in a state of conflict and drive the control disk 2032 to move downward, and the gear teeth of the control disk 2032 and the locking control tooth ring 2011 of the locking main seat 201 to be separated from each other. At this time, by inserting the positioning pin rod into the locking pin hole 2022, the locking main seat 201 and the control sub-seating 202 can be connected as a whole for use. Thereafter, the sealing assembly 2 is no different from a traditional sealing assembly, and is suitable for use in an environment where the container bottle body 1 needs to be opened frequently, thereby further improving the flexibility and adaptability of the device.

[0038] In this article, there are a few points to note:

[0039] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0040] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0041] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An edible fungus storage container with a locking structure, characterized in that: include: A container body (1) and a capping assembly (2), wherein the capping assembly (2) comprises a locking main seat (201), a control sub-seat (202), a positioning column (203) and a locking control column (204); the locking main seat (201) is plugged into the bottle mouth at the top of the container body (1), and the control sub-seat (202) is rotatably connected to the top of the locking main seat (201), the positioning column (203) is plugged into the bottom of the locking main seat (201), the top of the locking control column (204) is plugged into the inside of the control sub-seat (202), and the bottom of the locking control column (204) is plugged into the inside of the locking main seat (201); The bottle mouth at the top of the container body (1) is provided with threads on the outside, and the locking main seat (201) is screwed to the bottle mouth at the top of the container body (1) via the threads; The top of the inner cavity of the container body (1) is provided with a positioning groove (101), and the bottom of the positioning column (203) is provided with a positioning block (2031), the positioning block (2031) is inserted into the interior of the positioning groove (101), and the block cross section of the positioning block (2031) is a regular polygon; A control disk (2032) is provided on the top of the positioning column (203), and the control disk (2032) is plugged into the interior of the locking main seat (201). A locking top spring (2033) is provided on the bottom of the control disk (2032), and the two ends of the locking top spring (2033) respectively abut against the bottom of the control disk (2032) and the interior of the locking main seat (201), and the bottom end of the locking control column (204) abuts against the top of the control disk (2032); The top of the control disk (2032) and the interior of the locking main seat (201) are both provided with a locking toothed ring (2011), and the cross-sectional shape of a single gear tooth of the locking toothed ring (2011) is a right triangle. Under the action of the top spring of the locking top spring (2033), the gear teeth of the control disk (2032) and the locking toothed ring (211) of the locking main seat (201) are plugged into each other, and when the locking main seat (201) is rotated in the loosening direction, the straight edges of the gear teeth of the control disk (2032) and the locking toothed ring (211) of the locking main seat (201) are engaged with each other. An integral track block (2012) is provided inside the locking main seat (201), and an integral track groove (2041) is provided at the bottom of the locking control column (204), and the integral track block (2012) is plugged into the integral track groove (2041); A multi-purpose top spring (2013) is provided on the top of the integral track block (2012), and two ends of the multi-purpose top spring (2013) respectively abut against the top of the integral track block (2012) and the inside of the locking control column (204), and the elastic force of the multi-purpose top spring (2013) is greater than the elastic force of the locking top spring (2033); The locking column (204) is provided with a spirally oriented functional groove (2042) on the outside, and a functional protrusion (2021) is provided on the inside of the control sub-base (202), and the functional protrusion (2021) is plugged into the inside of the functional groove (2042).

2. The edible fungus storage container with a locking structure as claimed in claim 1, characterized in that: The locking main seat (201) and the control sub-seat (202) are both provided with locking pin holes (2022) inside, and when the control sub-seat (202) is not twisted by an external force, the locking pin holes (2022) of the locking main seat (201) and the control sub-seat (202) are mutually misaligned.

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