An electric energy metering box

Abstract

This application relates to the technical field of electric energy metering boxes, and discloses an electric energy metering box, which includes a box body and a box door. The box door is rotatably connected to the box body. A locking spring is provided on the box body, a locking block is provided on the locking spring, a connecting rope is provided on the box door, and one end of the connecting rope away from the box door is arranged on the locking block; when the box door is opened, the locking spring is in a stretched state; when the box door is closed, the locking spring is in a non-loaded state. In this application, the staff member pulls open the box door, and the box door drives the locking block to move through the connecting rope, so that the locking block drives the locking spring to stretch. If the staff member does not continuously press the box door, the locking spring can drive the box door to close through the locking block and the connecting rope, thereby avoiding the problem that the staff member forgets to close the box door, enabling the box door to stably block the opening of the box body, making it difficult for external sundries to directly enter the box body, and avoiding the phenomenon that external personnel accidentally touch the electric energy metering box and cause problems with the electric energy metering box.

Description

Technical Field

[0001] The present application relates to the technical field of electric energy metering boxes, and in particular to an electric energy metering box. Background Art

[0002] An electric energy metering box is a device used to measure, record, display, and control electric energy consumption or power quality. It is usually installed in various links of the power system, such as power generation, power transmission, power distribution, and power consumption. The electric energy metering box can be installed indoors or outdoors.

[0003] In related technologies, an electric energy metering box includes a box body and a box door. The box door is rotatably connected to the box body, and electrical components are arranged inside the box body. The electrical components are used to realize the basic functions of the electric energy metering box.

[0004] When staff members are detecting or repairing the electric energy metering box, they may leave the electric energy metering box forgetting to close the box door because of a phone call or other things. At this time, the box door is not closed, and external personnel may accidentally touch the electric energy metering box, resulting in problems with the electric energy metering box and affecting its normal use. Summary of the Invention

[0005] In order to improve the problem that the box door of the electric energy metering box cannot be automatically closed, the present application provides an electric energy metering box.

[0006] An electric energy metering box provided by the present application adopts the following technical solutions:

[0007] An electric energy metering box includes a box body and a box door. The box door is rotatably connected to the box body. A locking spring is arranged on the box body, and a locking block is arranged on the locking spring. A connecting rope is arranged on the box door, and one end of the connecting rope away from the box door is arranged on the locking block; when the box door is opened, the locking spring is in a stretched state; when the box door is closed, the locking spring is in a non-loaded state.

[0008] By adopting the above technical solutions, when the staff member opens the box door, the box door drives the locking block to move through the connecting rope, so that the locking block drives the locking spring to stretch. If the staff member does not continuously press the box door, the locking spring can drive the box door to close through the locking block and the connecting rope, thus avoiding the problem that the staff member forgets to close the box door, enabling the box door to stably block the opening of the box body, preventing external sundries from directly entering the box body, and avoiding the phenomenon that external personnel accidentally touch the electric energy metering box and cause problems with the electric energy metering box.

[0009] Optionally, a placement groove for installing electrical components is formed on the box body, a blocking cloth for blocking the placement groove is slidably connected to the box body, and an observation port for observing the electrical components is formed on the blocking cloth.

[0010] By adopting the above technical solution, the baffle is used to block the placement groove, and the observation port can observe the electrical components. When the staff only checks the electric energy metering box daily, the staff will not touch the electrical components in the box, further avoiding the possibility that the staff accidentally touches the electrical components by mistake, reducing the situations where the staff gets an electric shock or the electric energy metering box has problems, and increasing the safety performance of the electric energy metering box.

[0011] Optionally, a first connecting piece and a second connecting piece are provided on the box body. The first connecting piece is electrically connected to an external power supply, and the second connecting piece is electrically connected to the electrical components. A connecting strip for connecting the first connecting piece and the second connecting piece is provided on the baffle; when the baffle blocks the placement groove, the connecting strip is located between the first connecting piece and the second connecting piece, and at this time, the electrical components and the external power supply are electrically connected to each other.

[0012] By adopting the above technical solution, the placement groove is blocked by the baffle, and the connecting strip is located between the first connecting piece and the second connecting piece, so that the first connecting piece and the second connecting piece can be connected to each other, thereby enabling the electrical components and the external power supply to be connected to each other and enabling the electrical components to operate normally; when the baffle does not block the placement groove, the connecting strip is not between the first connecting piece and the second connecting piece. At this time, the first connecting piece and the second connecting piece cannot be connected, making the electric energy metering box unusable and reminding the staff that the baffle is not installed in place.

[0013] Optionally, a first magnet is slidably connected to the box body. A groove is formed in the locking block, and a second magnet for adsorbing the first magnet is arranged in the groove. A moving member is arranged on the second connecting piece; when the box door is opened and the second connecting piece is not powered on, the second magnet adsorbs the first magnet and inserts it into the groove; when the second connecting piece is powered on, the moving member is used to drive the first magnet out of the groove.

[0014] By adopting the above technical solution, when the box door is opened and the first connecting piece and the second connecting piece are not connected, the connecting rope drives the locking block to move, enabling the second magnet to adsorb the first magnet and move, so that the first magnet is inserted into the groove, and the first magnet limits the locking block, making it difficult for the locking block to slide on the box body; when the box door is opened and the first connecting piece and the second connecting piece are connected to each other, the moving member can drive the first magnet out of the groove, so that the first magnet does not limit the locking block, and the locking spring can drive the locking block to move stably; if there is a problem with the connection between the connecting strip, the first connecting piece and the second connecting piece, it is difficult for the moving member to drive the first magnet out of the groove. At this time, the staff can check whether there is a problem with the connection between the connecting strip, the first connecting piece and the second connecting piece by observing whether the box door closes automatically, so that the staff does not need to check the circuit situation at the back end later, reducing the operation steps of the staff.

[0015] Optionally, the moving member includes an electromagnet, which is electrically connected to the second connecting member. When the second connecting member is powered on, the electromagnet adsorbs the first magnet to disengage from the groove.

[0016] By adopting the above technical solution, the electromagnet is electrically connected to the second connecting member. When the second connecting member is powered on, the second connecting member can adsorb the first magnet through the electromagnet, causing the first magnet to disengage from the groove, so as to facilitate the locking spring to drive the locking block to move.

[0017] Optionally, a limiting block is provided on the baffle cloth, and a limiting groove for inserting the limiting block is formed on the locking block; when the baffle cloth does not block the placement groove, the limiting block can be inserted into the limiting groove.

[0018] By adopting the above technical solution, when the baffle cloth does not block the placement groove, the limiting block can be inserted into the limiting groove to limit the locking block, making it difficult for the locking spring to drive the locking block to move, thereby realizing the limitation of the locking block, so that the staff does not need to fix the box door, which is convenient for the staff to repair the electrical components in the box.

[0019] Optionally, a winding rod is rotatably connected to the box body. The baffle cloth is made of a flexible material and is rotatably connected to the winding rod. A torsion spring is provided on the winding rod, and the torsion spring is used to wind the baffle cloth. A stop structure for restricting the movement of the baffle cloth is provided on the baffle cloth.

[0020] By adopting the above technical solution, the torsion spring drives the winding rod to rotate, and the baffle cloth is rotatably connected to the winding rod. When the staff unlocks the baffle cloth through the stop structure, the torsion spring can drive the baffle cloth to move, realizing the automatic winding of the baffle cloth, so that the staff does not need to manually move the baffle cloth, reducing the operation steps of the staff.

[0021] Optionally, the stop structure includes a stop bar and a support rod. The support rod is provided on the baffle cloth. The stop bar is rotatably connected to the support rod. A stop block is provided on the stop bar. A stop groove for inserting the stop block is formed on the box body; when the stop block is inserted into the stop groove, the baffle cloth blocks the opening of the placement groove.

[0022] By adopting the above technical solution, the staff presses the stop bar. Since the stop bar is rotatably connected to the support rod, the stop block disengages from the stop groove, so that the stop block does not limit the stop bar, allowing the baffle cloth to separate from the box body; by inserting the stop block into the stop groove, the stop block limits the box body, enabling the baffle cloth to be fixed on the box body.

[0023] Optionally, a fixing groove for installing the winding rod is formed on the box body, and a fixing plate for blocking the fixing groove is slidably connected to the box body.

[0024] By adopting the above technical solution, when the baffle cloth is wound on the winding rod, the staff can slide the fixing plate so that the winding rod can be taken out from the fixing groove, facilitating the replacement of the baffle cloth in the winding rod. Since the baffle cloth is made of flexible material, it can avoid damage to the baffle cloth and affect the normal use of the baffle cloth. When the fixing plate seals the fixing groove, the fixing plate can prevent foreign objects from falling into the fixing groove and affecting the subsequent rotation of the winding rod.

[0025] Optionally, a first tooth block is provided on the locking block, a rotating gear is rotatably connected to the box body, and a second tooth block is provided on the fixing plate. Both the first tooth block and the second tooth block are meshed with the rotating gear. When the box door is opened, the locking block drives the fixing plate to move, and the fixing plate does not block the opening of the fixing groove.

[0026] By adopting the above technical solution, when the box door is opened, the locking spring drives the locking block to move, so that the first tooth block in the locking block drives the rotating gear to rotate. Since the second tooth block is meshed with the rotating gear, the rotating gear can drive the fixing plate to move, so that the fixing plate does not block the opening of the fixing groove, enabling the staff to take out the winding rod from the fixing groove after winding the baffle cloth, and the staff does not need to slide the fixing plate again, facilitating the staff to disassemble or install the winding rod.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. When the staff opens the box door, the box door drives the locking block to move through the connecting rope, stretching the locking spring. If the staff does not continuously hold the box door, the locking spring can drive the box door to close through the locking block and the connecting rope, thus avoiding the problem that the staff forgets to close the box door, enabling the box door to stably seal the opening of the box body, preventing external sundries from directly entering the box body, and avoiding the phenomenon that external personnel accidentally touch the electric energy metering box and cause problems with the electric energy metering box.

[0029] 2. By using the baffle cloth to block the placement groove, the connecting strip is located between the first connecting member and the second connecting member, enabling the first connecting member and the second connecting member to be connected to each other, thus realizing the connection between the electrical component and the external power supply and enabling the electrical component to operate normally. When the baffle cloth does not block the placement groove, the connecting strip is not between the first connecting member and the second connecting member, and at this time, the first connecting member and the second connecting member cannot be connected, making the electric energy metering box inoperable and reminding the staff that the baffle cloth is not installed in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of an embodiment of the present application;

[0031] Figure 2 is along Figure 1Partial sectional view along line A-A in [the figure];

[0032] Figure 3 It is a schematic structural diagram highlighting the fixing groove in the embodiment of the present application;

[0033] Figure 4 along Figure 1 Partial sectional view along line B-B in [the figure];

[0034] Figure 5 It is a schematic structural diagram highlighting the limiting groove in the embodiment of the present application;

[0035] Figure 6 along Figure 1 Partial sectional view along line C-C in [the figure].

[0036] Reference numerals: 1, box body; 11, placement groove; 12, receiving groove; 121, locking spring; 122, locking block; 123, first tooth block; 13, fixing groove; 131, winding rod; 132, torsion spring; 14, support groove; 141, stop groove; 15, limiting groove; 151, through hole; 16, rotation groove; 161, rotation gear; 162, moving plate; 163, second tooth block; 164, fixing plate; 17, accommodating groove; 171, first connecting member; 172, second connecting member; 173, accommodating hole; 18, sliding groove; 181, first magnet; 182, groove; 183, second magnet; 184, moving member; 2, box door; 21, connecting rope; 3, blocking cloth; 31, baffle; 32, observation port; 33, stop structure; 331, stop bar; 332, support rod; 333, stop block; 334, stop spring; 34, limiting block; 25, connecting bar. Detailed implementation manners

[0037] The following further elaborates on the present application in conjunction with the attached Figures 1-6 drawings for a more detailed description.

[0038] This embodiment discloses an electric energy metering box. Referring to Figure 1 , an electric energy metering box includes a box body 1 and two box doors 2, and the two box doors 2 are both rotatably connected to the box body 1. A placement groove 11 is provided on the box body 1, and the placement groove 11 is for placing electrical components, and the electrical components can realize the basic functions of the electric energy metering box.

[0039] Referring to Figure 2, two receiving grooves 12 are formed on the surface of the box body 1. A locking spring 121 is fixedly connected to the bottom wall of the receiving groove 12, and the locking block 122 extends along the length direction of the receiving groove 12. The locking spring 121 is fixedly connected to the ground away from the bottom wall of the receiving groove 12 with a locking block 122, and the locking spring 121 drives the locking block 122 to move towards the bottom wall of the receiving groove 12. A connecting rope 21 is provided on the locking block 122. One end of the connecting rope 21 is fixedly connected to the end face of the locking block 122 away from the locking spring 121, and the other end of the connecting rope 21 is fixedly connected to the surface of the box door 2.

[0040] Refer to Figure 2 , when the box door 2 is opened, the box door 2 drives the locking block 122 to move through the connecting rope 21. At this time, the locking spring 121 is in a stretched state; when the box door 2 is closed, the locking block 122 is located in the receiving groove 12, and at this time, the locking spring 121 is in a non-loaded state.

[0041] Refer to Figure 1 and Figure 3 , two fixing grooves 13 are formed on the groove wall of the placing groove 11. A winding rod 131 is detachably connected in the fixing groove 13. A blocking cloth 3 is fixedly connected to the winding rod 131, and the blocking cloth 3 can block the opening of the placing groove 11. An observation port 32 is formed on the surface of the blocking cloth 3, and the observation port 32 is used for the staff to observe the state of the electrical components. Torsion springs 132 are fixedly connected to both ends of the winding rod 131, and the torsion springs 132 drive the blocking cloth 3 to be completely wound into the fixing groove 13.

[0042] Refer to Figure 3 and Figure 4 , a baffle 31 is fixedly connected to the surface of the blocking cloth 3 away from the winding rod 131, and a stop structure 33 for restricting the movement of the blocking cloth 3 is provided on the baffle 31. The stop structure 33 includes a stop bar 331 and a support rod 332. The support rod 332 is fixedly connected to the baffle 31, and the stop bar 331 is rotatably connected to the support rod 332. A stop block 333 is fixedly connected to one end of the stop bar 331, and a stop spring 334 is fixedly connected to the other end of the stop bar 331, and the support rod 332 is located between the stop block 333 and the stop spring 334.

[0043] Refer to Figure 4 , a support groove 14 is formed on the surface of the box body 1, and the support groove 14 allows the stop bar 331 and the stop block 333 to move. A stop groove 141 for inserting the stop block 333 is formed on the groove wall of the support groove 14, and the stop spring 334 drives the stop block 333 to insert into the stop groove 141. When the stop block 333 is inserted into the stop groove 141, the stop spring 334 is in a non-loaded state, and at this time, the blocking cloth 3 can block the opening of the placing groove 11; when the stop block 333 disengages from the stop groove 141, the stop spring 334 is in a compressed state, and at this time, the blocking cloth 3 can move.

[0044] Referring to Figure 1 , Figure 3 and Figure 5 , a limiting block 34 is fixedly connected to the surface of the baffle 31, and the limiting block 34 extends in the vertical direction. A limiting groove 15 for inserting the limiting block 34 is formed on the surface of the locking block 122, and the limiting groove 15 extends along the length direction of the locking block 122. A through hole 151 communicating with the accommodating groove 12 is formed on the wall of the placing groove 11, and the through hole 151 allows the limiting block 34 to pass through. When the baffle cloth 3 is wound onto the winding rod 131, the limiting block 34 passes through the through hole 151 and is inserted into the limiting groove 15. At this time, the limiting block 34 restricts the movement of the locking block 122.

[0045] Referring to Figure 2 , Figure 3 and Figure 5 , a plurality of first tooth blocks 123 are integrally formed on the surface of the locking block 122, and the plurality of first tooth blocks 123 are arranged in an array along the length direction of the locking block 122. A rotating groove 16 communicating with the placing groove 11 is formed on the surface of the box body 1, and a rotating gear 161 is rotatably connected in the rotating groove 16. The rotating gear 161 and the first tooth blocks 123 mesh with each other. A moving plate 162 is slidably connected in the rotating groove 16. A plurality of second tooth blocks 163 are integrally formed on the surface of the moving plate 162, and the plurality of second tooth blocks 163 are arranged in an array along the length direction of the locking block 122, and the second tooth blocks 163 mesh with the rotating gear 161. A fixing plate 164 is integrally formed on the surface of the moving plate 162, and the fixing plate 164 can block the fixing groove 13. The fixing plate 164 is located on the side of the plurality of second tooth blocks 163 away from the ground.

[0046] Referring to Figure 3 and Figure 5 , when the box door 2 is opened, the locking block 122 moves in a direction away from the locking spring 121. The locking block 122 drives the rotating gear 161 to rotate through the first tooth blocks 123. The rotating gear 161 drives the moving plate 162 to move through the second tooth blocks 163, so that the fixing plate 164 opens the fixing groove 13. When the box door 2 is closed, the locking block 122 moves in the direction of the locking spring 121. The locking block 122 drives the rotating gear 161 to rotate through the first tooth blocks 123. The rotating gear 161 drives the moving plate 162 to move through the second tooth blocks 163, so that the fixing plate 164 blocks the fixing groove 13.

[0047] Referring to Figure 6, a receiving groove 17 is formed in the box body 1, and a first connecting member 171 and a second connecting member 172 are fixedly connected in the receiving groove 17. A wire is fixedly connected to the first connecting member 171, and the wire is electrically connected to an external power source. A wire is fixedly connected to the second connecting member 172, and the wire is electrically connected to an electrical component. A receiving hole 173 communicating with the receiving groove 17 is formed in the wall of the placing groove 11, and a connecting strip 25 is fixedly connected to the surface of the baffle 31. The connecting strip 25 is made of conductive metal, and the baffle 31 is made of insulating material. The connecting strip 25 can be inserted into the receiving groove 17 through the receiving hole 173, and the connecting strip 25 can be inserted between the first connecting member 171 and the second connecting member 172.

[0048] Referring to Figure 6 , when the blocking cloth 3 blocks the opening of the placing groove 11, the connecting strip 25 is inserted between the first connecting member 171 and the second connecting member 172, so that the external power source and the electrical component can be electrically connected.

[0049] Referring to Figure 2 , a sliding groove 18 is formed in the wall of the receiving groove 12, and a first magnet 181 is slidably connected in the sliding groove 18. A groove 182 is formed in the surface of the locking block 122 facing the sliding groove 18, and the groove 182 extends along the length direction of the locking block 122. A second magnet 183 is fixedly connected to the bottom wall of the groove 182, and the second magnet 183 adsorbs the first magnet 181. When the second magnet 183 adsorbs the first magnet 181, the first magnet 181 can be inserted into the groove 182, and the first magnet 181 restricts the movement of the locking block 122 in the receiving groove 12.

[0050] Referring to Figure 2 and Figure 6 , a moving member 184 is fixedly connected in the sliding groove 18. The moving member 184 includes an electromagnet. The electromagnet is electrically connected to the second connecting member 172. When the second connecting member 172 is energized, the electromagnet can generate a magnetic force, and the magnetic force of the electromagnet on the first magnet 181 is greater than the magnetic force of the second magnet 183 on the first magnet 181, so that the first magnet 181 disengages from the groove 182, and the locking block 122 can move in the receiving groove 12.

[0051] The implementation principle of the electric energy metering box in the embodiment of the present application is as follows: The staff opens the box door 2, and the box door 2 drives the locking block 122 to move through the connecting rope 21. Then the staff presses the stopping strip 331 to make the stopping block 333 disengage from the stopping groove 141. At this time, the torsion spring 132 drives the winding rod 131 to rotate, so that the blocking cloth 3 is wound on the winding rod 131. At this time, the limiting block 34 passes through the through hole 151 and is inserted into the limiting groove 15. At the same time, the connecting strip 25 does not abut against the first connecting member 171 and the second connecting member 172, so that the electromagnet loses magnetic force, and the second magnet 183 adsorbs the first magnet 181, so that the first magnet 181 is inserted into the groove 182 to realize the limitation of the locking block 122.

[0052] Unless otherwise defined, technical terms or scientific terms used in this application shall have the ordinary meanings as understood by those of ordinary skill in the art to which this application pertains. The terms "first", "second", "third" and similar terms used in the description and claims of this application do not denote any order, quantity or importance, but are only used to distinguish different components. Similar terms such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. Terms such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. Terms such as "upper", "lower", "left" and "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0053] The above are only the preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the design concept of this application shall be included within the protection scope of this application.

Claims

1. An electric energy metering box, comprising a box body (1) and a box door (2), wherein the box door (2) is rotatably connected to the box body (1), and is characterized in that: A locking spring (121) is provided on the box body (1), a locking block (122) is provided on the locking spring (121), a connecting rope (21) is provided on the box door (2), and one end of the connecting rope (21) away from the box door (2) is arranged on the locking block (122); when the box door (2) is opened, the locking spring (121) is in a stretched state; when the box door (2) is closed, the locking spring (121) is in a non-loaded state; A placement groove (11) for installing electrical components is formed on the box body (1), a baffle cloth (3) for blocking the placement groove (11) is slidably connected to the box body (1), and an observation port (32) for observing the electrical components is formed on the baffle cloth (3); A first connecting member (171) and a second connecting member (172) are provided on the box body (1), the first connecting member (171) is electrically connected to an external power source, the second connecting member (172) is electrically connected to the electrical components, and a connecting strip (25) for connecting the first connecting member (171) and the second connecting member (172) is provided on the baffle cloth (3); when the baffle cloth (3) blocks the placement groove (11), the connecting strip (25) is located between the first connecting member (171) and the second connecting member (172), and at this time, the electrical components and the external power source are electrically connected to each other.

2. The electric energy metering box according to claim 1, wherein: A first magnet (181) is slidably connected to the box body (1), a groove (182) is formed on the locking block (122), and a second magnet (183) for adsorbing the first magnet (181) is arranged in the groove (182), and a moving member (184) is provided on the second connecting member (172); when the box door (2) is opened and the second connecting member (172) is not powered on, the second magnet (183) adsorbs the first magnet (181) and inserts it into the groove (182); when the second connecting member (172) is powered on, the moving member (184) is used to drive the first magnet (181) to disengage from the groove (182).

3. The electric energy metering box according to claim 2, characterized in that: The moving member (184) includes an electromagnet, the electromagnet is electrically connected to the second connecting member (172), and when the second connecting member (172) is powered on, the electromagnet adsorbs the first magnet (181) to disengage from the groove (182).

4. A power metering box according to claim 1, characterized in that: A limiting block (34) is provided on the baffle cloth (3), and a limiting groove (15) for inserting the limiting block (34) is formed on the locking block (122); when the baffle cloth (3) does not block the placement groove (11), the limiting block (34) can be inserted into the limiting groove (15).

5. A power metering box according to claim 1, characterized in that: A winding rod (131) is rotatably connected to the box body (1), the baffle cloth (3) is made of a flexible material, the baffle cloth (3) is rotatably connected to the winding rod (131), a torsion spring (132) is provided on the winding rod (131), the torsion spring (132) is used for winding the baffle cloth (3), and a stopping structure (33) for restricting the movement of the baffle cloth (3) is provided on the baffle cloth (3).

6. The electric energy metering box according to claim 5, characterized in that: The stop structure (33) includes a stop bar (331) and a support rod (332). The support rod (332) is arranged on the baffle cloth (3). The stop bar (331) is rotatably connected to the support rod (332). A stop block (333) is arranged on the stop bar (331). A stop groove (141) for the stop block (333) to insert is formed on the box body (1). When the stop block (333) is inserted into the stop groove (141), the baffle cloth (3) seals the opening of the placement groove (11).

7. A power metering box according to claim 5, characterized in that: A fixing groove (13) for installing a winding rod (131) is formed on the box body (1). A fixing plate (164) for sealing the fixing groove (13) is slidably connected to the box body (1).

8. The electric energy metering box according to claim 7, characterized in that: A first tooth block (123) is arranged on the locking block (122). A rotating gear (161) is rotatably connected to the box body (1). A second tooth block (163) is arranged on the fixing plate (164). The first tooth block (123) and the second tooth block (163) are both meshed and connected to the rotating gear (161). When the box door (2) is opened, the locking block (122) drives the fixing plate (164) to move, and the fixing plate (164) does not seal the opening of the fixing groove (13).

Images