Metering rice feeding mechanism for cooking utensil

Abstract

The utility model discloses a metering rice feeding mechanism for a cooking utensil, which comprises a rice bin, a separating disc and a base, the separating disc is rotatably arranged on the base, the rice bin is arranged at the top of the separating disc, the separating disc is provided with at least one metering cavity, the base is provided with a discharging channel, and the bottom of the rice bin is provided with a rice outlet. When the metering cavity rotates to the position above the discharging channel, the metering cavity is communicated with the discharging channel, a rice outlet is formed in the bottom wall of the rice bin, the rice outlet is matched with the separation disc, a check block used for shielding part of the rice outlet is arranged in the rice bin, the check block covers the position above the discharging channel, and the area of the area covered by the check block is larger than the cross section area of the metering cavity. The size of the rice outlet is matched with the size of the separation disc, so that rice in the rice bin can directly and vertically fall into the metering cavity of the separation disc, the situation that the rice in the rice bin cannot flow after being clustered is avoided, the whole structure is simple, and an additional stirring structure does not need to be arranged.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen appliance technical field especially, a kind of metering rice mechanism for cooking utensil. BACKGROUND

[0002] At present, the electric rice cooker on market needs user to add rice for cooking, usually, rice is taken out from rice bin by measuring cup or other measuring tool, and then put into the electric rice cooker, the above process is operated manually, and there is no automatic equipment, furthermore, when determining the specific amount of rice, it is usually determined by several cups of rice in measuring tool, if user is not concentrated, it is easy to forget the amount of rice, so it is possible to add too much rice or too little rice, if the user is not very high in cooking frequency, the error is not found, if too much rice is added, it directly leads to food waste, and if too little rice is added, it can cause people to be not full after a meal.

[0003] With the increasing demand for intelligent products, an automatic metering rice structure is developed, but the rice bin of the automatic metering rice structure is in the form of a hopper, and rice is discharged through a small opening, the rice stored in the rice bin of the structure is prone to clumping after being stored for a period of time, and the clumped rice cannot flow, so a new structure has to be set to stir the rice in the rice bin, resulting in a more and more complex structure of the product. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a metering rice mechanism for cooking utensil, to solve the technical problem that the rice bin of the automatic metering rice structure in the prior art is in the form of a hopper, and rice is discharged through a small opening, the rice stored in the rice bin of the structure is prone to clumping after being stored for a period of time, and the clumped rice cannot flow, so a new structure has to be set to stir the rice in the rice bin, resulting in a more and more complex structure of the product.

[0005] The utility model provides a metering rice mechanism for cooking utensil, which comprises a rice bin, a partition disc and a base, the partition disc is rotatably arranged on the base, the rice bin is arranged on the top of the partition disc, at least one metering cavity is arranged on the partition disc, a discharging channel is arranged on the base, a rice discharging opening is arranged on the bottom of the rice bin, the metering cavity is in communication with the discharging channel when the metering cavity is rotated to above the discharging channel, a rice discharging opening is arranged on the bottom wall of the rice bin, the rice discharging opening is matched with the partition disc, a blocking block is arranged in the rice bin to block part of the rice discharging opening, the blocking block covers the discharging channel, and the area covered by the blocking block is larger than the cross-sectional area of the metering cavity.

[0006] The metering-in rice mechanism for the cooking utensil as described above, the base is provided with a groove, the partition disc is rotationally arranged in the groove, and the discharge channel is arranged on the groove bottom wall.

[0007] The metering-in rice mechanism for the cooking utensil as described above, the metering-in rice mechanism for the cooking utensil comprises a motor, the motor is arranged on the base, the motor is provided with an output rotating shaft, and the output rotating shaft is in transmission connection with the partition disc.

[0008] The metering-in rice mechanism for the cooking utensil as described above, the radial length of the discharge channel is greater than or equal to the radial length of the metering cavity.

[0009] The metering-in rice mechanism for the cooking utensil as described above, the stop block is a hollow structure, the bottom side wall of the stop block is provided with an elastic baffle, the elastic baffle is used for abutting against the cavity wall of the metering cavity, so that the rice in the rice bin cannot enter into one of the metering cavities above the discharge channel.

[0010] The metering-in rice mechanism for the cooking utensil as described above, the metering-in rice mechanism for the cooking utensil comprises a transmission member, the transmission member penetrates through the base, one end of the transmission member is in transmission connection with the output rotating shaft, and the other end of the transmission member is connected with the partition disc.

[0011] The metering-in rice mechanism for the cooking utensil as described above, the bottom of the partition disc is provided with an inner tooth groove, the side wall of the transmission member is provided with a transmission tooth, and the transmission tooth is in meshing connection with the inner tooth groove.

[0012] The metering-in rice mechanism for the cooking utensil as described above, the bottom wall of the rice bin is an arc-shaped concave wall which converges to the rice outlet direction from all around.

[0013] The metering-in rice mechanism for the cooking utensil as described above, the number of the metering cavities is eight, and the metering cavities are arranged in a ring shape on the partition disc.

[0014] The metering-in rice mechanism for the cooking utensil as described above, the rice bin is provided with a handle, the bottom wall of the rice bin is provided with a downward extending sealing edge, the sealing edge is provided with a clamping groove, the outer side wall of the base is provided with a buckle, and the buckle is in buckling connection with the clamping groove.

[0015] The embodiment of the present application has the following beneficial effects:

[0016] The utility model discloses a metering mechanism for rice of cooking utensil, including rice bin, partition disc and base, partition disc rotation is established at the base, and the rice bin sets up at the top of partition disc, is equipped with at least one measuring cavity on the partition disc, is equipped with the discharge channel on the base, and the bottom of rice bin is equipped with the rice outlet, when measuring cavity rotates to the discharge channel top, measuring cavity is linked together with the discharge channel, and the bottom wall of rice bin is equipped with the rice outlet, and the rice outlet is compatible with partition disc, and the rice bin is equipped with the baffle for shielding part rice outlet, and the baffle covers the top of discharge channel, and the area of the area covered by baffle is greater than the cross section area of measuring cavity. The size of the rice outlet is compatible with the size of the partition disc, so that the rice in the rice bin can directly fall vertically into the measuring cavity of the partition disc, avoiding the rice in the rice bin from clumping and flowing, and the whole structure is simple, without setting up additional stirring structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is the structural schematic diagram of the metering mechanism for rice of cooking utensil according to an exemplary embodiment;

[0019] Figure 2 It is the structural schematic diagram of another view of the metering mechanism for rice of cooking utensil according to an exemplary embodiment;

[0020] Figure 3 It is the exploded view of another view of the metering mechanism for rice of cooking utensil according to an exemplary embodiment;

[0021] Figure 4 It is the sectional view of another view of the metering mechanism for rice of cooking utensil according to an exemplary embodiment;

[0022] Figure 5 It is the top view of another view of the metering mechanism for rice of cooking utensil according to an exemplary embodiment.

[0023] Wherein: 1, rice bin;11, rice outlet;12, baffle;13, elastic baffle;14, clamping groove;15, handle;2, partition disc;21, measuring cavity;22, inner tooth groove;3, base;31, discharge channel;32, groove;33, buckle;4, motor;41, output shaft;5, transmission part;51, transmission tooth. DETAILED DESCRIPTION

[0024] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0025] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0027] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application.

[0029] It should be noted that the cooking device of the present application can be an electric rice cooker, or a food processor or other appliance that can be used for cooking. The rice stored in the rice bin 1 of the present application can be rice, millet or other dry food that can be used for cooking.

[0030] Referring to Figures 1-5 The utility model provides a kind of metering rice mechanism for cooking utensil, including rice bin 1, partition disc 2 and base 3, the partition disc 2 rotation is arranged on the base 3, the rice bin 1 is set at the top of the partition disc 2, at least one metering cavity 21 is equipped on the partition disc 2, discharge channel 31 is equipped on the base 3, the bottom of the rice bin 1 is equipped with rice outlet 11, when the metering cavity 21 is rotated to above the discharge channel 31, the metering cavity 21 is communicated with the discharge channel 31, the bottom wall of the rice bin 1 is equipped with rice outlet 11, the rice outlet 11 is compatible with the partition disc 2, the rice bin 1 is equipped with the stopper 12 for shielding part of the rice outlet 11, the stopper 12 is covered above the discharge channel 31, the area area covered by the stopper 12 is greater than the cross-sectional area of the metering cavity 21.The size of rice outlet 11 is compatible with the size of the partition disc 2, so that the rice in rice bin 1 can directly vertically drop into the metering cavity 21 of partition disc 2, avoid the rice in rice bin 1 from clumping and flowing, and the whole structure is simple, without setting additional stirring structure;The stopper 12 can shield the metering cavity 21 located above the discharge channel 31, avoid the same metering cavity 21 from adding rice and discharging rice, facilitate the measurement of rice amount.

[0031] Specifically, the area area covered by the stopper 12 is twice the cross-sectional area of the metering cavity 21, to completely cover the metering cavity 21 above the discharge channel 31, avoid the metering cavity 21 from leaking rice after rotating a certain angle.Specifically, the rice bin 1 is used to store rice, the partition disc 2 is used to measure and temporarily store rice, the volume of each metering cavity 21 is same, by rotating the partition disc 2, so that multiple metering cavities 21 are sequentially aligned with the discharge channel 31, the rice in multiple metering cavities 21 can sequentially enter the inside of cooking device from the discharge channel 31, by controlling the number of metering cavities 21 discharging rice, the amount of rice entering the cooking device can be automatically controlled, to realize automatic metering of rice.

[0032] Specifically, the size of each metering cavity 21 is same, the rotation stroke of the partition disc 2 is same each time, the rotation angle A of the partition disc 2 is 360° / the number of metering cavities 21 each time.For user, the volume of the metering cavity 21 is fixed value set by manufacturer, if user needs to cook n times of the fixed value, the partition disc 2 needs to be rotated n times, so that the rice in n metering cavities 21 can sequentially flow out from the discharge channel 31 and enter the cooking device.

[0033] Optionally, the discharge channel 31 is provided with a switch assembly for closing or conducting the discharge channel 31, when the switch assembly is closed, the discharge channel 31 cannot discharge rice; when the user needs to cook rice, open the switch assembly, the discharge channel 31 is conducted, the rice in the metering cavity 21 directly above the discharge channel 31 can enter the cooking device below from the discharge channel 31. In a specific embodiment, the switch assembly includes a rotating door and an electric push rod for driving the rotating door to rotate.

[0034] Further, the base 3 is provided with a groove 32, the partition disc 2 is rotatably arranged in the groove 32, and the discharge channel 31 is formed on the groove bottom wall of the groove 32. Specifically, the depth of the groove 32 is greater than the thickness of the partition disc 2, so that the partition disc 2 can be entirely accommodated in the groove 32.

[0035] Specifically, the discharge channel 31 is a through hole arranged on the base, the discharge channel 31 communicates with the groove 32, the discharge channel 31 is arranged on the base in a partial side, and the discharge channel 31 is a fan-shaped structure similar to the metering cavity 21.

[0036] Further, the metering rice feeding mechanism for the cooking utensil includes a motor 4 arranged on the base 3, and the motor 4 is provided with an output shaft 41, and the output shaft 41 is in transmission connection with the partition disc 2.

[0037] Specifically, the motor 4 is provided with a fixing lug, the fixing lug is provided with a first mounting hole, the outer bottom wall of the base 3 is provided with a second mounting hole, and the first mounting hole and the second mounting hole are fixedly connected through bolts to fix the motor 4 to the base 3.

[0038] Further, the radial length of the discharge channel 31 is greater than or equal to the radial length of the metering cavity 21. Because the radial length of the discharge channel 31 is relatively long, the rice in the metering cavity 21 can be discharged from the discharge channel 31, after the rice in one metering cavity 21 is discharged from the discharge channel 31, the partition disc 2 is rotated, so that the adjacent metering cavity 21 can be rotated to the upper side of the discharge channel 31, and continue to flow out from the discharge channel 31 and enter the cooking device through the discharge channel 31. The amount of rice cooked in the cooking device each time is the amount of rice discharged from the discharge channel 31 by how many metering cavities 21.

[0039] Further, the stopper 12 is a hollow structure, and the bottom sidewall of the stopper 12 is provided with an elastic baffle 13 used for abutting against the cavity wall of the metering cavity 21 so that the rice in the rice bin 1 cannot enter into one of the metering cavities 21 above the discharging channel 31. When the partition disc 2 rotates, the elastic baffle 13 can slide off the top wall of the partition disc 2 to remove the excess rice overflowing the top of the partition disc 2, and ensure the amount of rice in the metering cavity 21, thereby ensuring the accuracy of automatic metering. The elastic baffle can avoid the elastic baffle and the top wall of the partition disc 2 from being stuck, thereby affecting the rotation of the partition disc 2.

[0040] In some other embodiments, a soft material layer can be arranged on the top wall of the partition disc 2, which is used for converting the rigid abutment between the partition disc 2 and the stopper 12 into the abutment between the rigid material and the soft material, thereby preventing the rice from being stuck when the rice is just at the abutment between the partition disc 2 and the stopper 12.

[0041] Specifically, the bottom sidewall of the stopper 12 is provided with a notch, the elastic baffle 13 is arranged in the notch, and the bottom wall of the elastic baffle 13 protrudes from the bottom wall of the stopper 12. A gap is left between the bottom wall of the stopper 12 and the top wall of the partition disc 2 to avoid rigid sticking.

[0042] Further, the metering rice mechanism for the cooking appliance comprises a transmission member 5 penetrating through the base 3, one end of the transmission member 5 is in transmission connection with the output rotating shaft 41, and the other end is connected with the partition disc 2.

[0043] Specifically, the output rotating shaft 41 is a character-shaped shaft, the bottom wall of the transmission member 5 is provided with a character-shaped groove, and the output rotating shaft 41 is inserted into the character-shaped groove so that the output rotating shaft 41 can drive the transmission member 5 to rotate together.

[0044] Further, the bottom of the partition disc 2 is provided with an inner tooth groove 22, the sidewall of the transmission member 5 is provided with a transmission tooth 51, and the transmission tooth 51 is in meshing connection with the inner tooth groove 22. The transmission member can drive the partition disc 2 to rotate when the transmission member rotates. The middle part of the partition disc 2 is provided with an upwardly protruding arc-shaped block, and the inner tooth groove 22 is arranged below the inner tooth groove 22.

[0045] In some other embodiments, the transmission member 5 and the partition disc 2 can be an integrated structure, which is more stable. When the output rotating shaft 41 drives the transmission member 5 to rotate, the partition disc 2 is driven to rotate together.

[0046] Further, the bottom wall of the rice bin 1 is an arc-shaped concave wall converging from the periphery to the rice discharging opening 11.

[0047] Further, the number of the metering cavities 21 is eight, and they are distributed in a ring shape on the partition disc 2. Each of the metering cavities 21 is an independent cavity and does not interfere with each other. The number of the metering cavities 21 can also be other values, such as six, seven or other values. When the number of the metering cavities 21 is six, the six metering cavities 21 are arranged in a circumferential uniform interval, and the included angle between the horizontal center axes of every two adjacent metering cavities 21 is 60°. When the number of the metering cavities 21 is seven, the seven metering cavities 21 are arranged in a circumferential uniform interval, and the included angle between the horizontal center axes of every two adjacent metering cavities 21 is 51.43°.

[0048] Further, the rice bin 1 is provided with a handle 15, and the bottom wall of the rice bin 1 is provided with a downwardly extending sealing edge, the sealing edge is provided with a clamping groove 14, and the outer side wall of the base 3 is provided with a buckle 33, and the buckle 33 is buckled with the clamping groove 14. The rice bin 1 and the base 3 are rotatably buckled or unlocked in the opposite direction, and the handle 15 is convenient for the user to operate. When the rice bin 1 and the base 3 are buckled and connected, holding the handle 15 can lift the entire metering rice feeding mechanism, which is convenient for moving and also facilitates the rice bin 1 to be filled with rice.

[0049] The metering rice feeding mechanism of the utility model can be taken off the cooking device, and by holding the handle 15, the entire metering rice feeding mechanism can be lifted out.

[0050] Optionally, the top of the rice bin 1 is provided with an end cover, the end cover is buckled on the rice bin 1, which is beneficial to the preservation of the rice in the rice bin 1, and the side wall of the rice bin 1 is provided with a perspective window, which is convenient for the user to observe the rice storage in the rice bin 1, and the user can timely fill the rice bin 1 with rice. When the user observes that the rice in the rice bin 1 needs to be added because it is too little, the end cover can be opened to add rice to the rice bin 1, and after the rice is added, the end cover is buckled on the rice bin 1 again, which is beneficial to reducing the humidity of the rice in the rice bin 1.

[0051] In some possible embodiments, the inner wall of the lower end of the rice bin 1 is provided with a position sensor, when the rice level of the rice bin 1 reaches the position of the position sensor, the position sensor transmits a signal back to the cooking device, and the cooking device sends an alarm signal to remind the user to timely fill the rice bin 1 with rice, which is convenient for the next cooking.

[0052] Optionally, a central control module is arranged in the cooking device, the motor and the electric push rod are electrically connected with the central control module, and the central control module can control the rotation of the motor to control the rotation of the partition disc 2, thereby controlling the opening and closing of the metering rice feeding mechanism.

[0053] Optionally, a control button for discharging rice is provided on the control panel of the cooking device, and the amount of rice discharged can be adjusted. In a specific embodiment, the amount of rice discharged on the control panel can be selected from values ​​such as 1, 2, 3, 4, 5, 6, 7, or 8, corresponding to the number of metering cavities 21 that have discharged rice during the current rice discharging. The metering cavities 21 rotate in a circular motion. After a metering cavity 21 rotates to the position directly above the discharge channel 31 to discharge rice, it continues to rotate, allowing the metering cavity 21 to rotate out of the stopper 12 and receive rice that falls from the rice outlet 11. The metering cavity 21 is then refilled and waits for the next rotation to the position directly above the discharge channel 31.

[0054] The utility model has a simple overall structure and strong stability. It can be used to store rice and also achieve quantitative output of rice, thereby realizing quantitative cooking of the cooking device. The rice bin 1 is used to store rice, the partition plate 2 is used to measure and temporarily store rice, and the cooking device is arranged below the discharge channel 31 to receive the rice flowing out of the discharge channel 31. By rotating the separating plate 2, the multiple metering cavities 21 can be rotated to the bottom of the rice outlet 11 in turn to receive the rice coming out of the rice outlet 11; the multiple metering cavities 21 can also be aligned with the discharge channel 31 in turn, and the rice in the multiple metering cavities 21 can enter the cooking device from the discharge channel 31 in turn. By controlling the number of metering cavities 21 discharging rice, the rice input amount of the cooking device can be automatically controlled to realize automatic metering of rice input; and the size of the rice outlet 11 is adapted to the size of the separating plate 2, so that the rice in the rice bin 1 can directly fall vertically into the metering cavity 21 of the separating plate 2, avoiding the rice in the rice bin 1 from clumping and being unable to flow, and the whole structure is simple, and no additional stirring structure is required; the block 12 can block the metering cavity 21 located above the discharge channel 31, avoiding the same metering cavity 21 from adding rice and discharging rice at the same time, which is convenient for measuring the amount of rice.

[0055] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model.

Claims

1. A metering-in mechanism for a rice cooking appliance, characterized by, The utility model provides a kind of metering rice mechanism for cooking utensil, including rice bin (1), partition disc (2) and base (3), the partition disc (2) rotation is arranged on the base (3), the rice bin (1) is arranged on the top of the partition disc (2), at least one metering cavity (21) is equipped on the partition disc (2), the base (3) is equipped with discharge channel (31), the bottom of the rice bin (1) is equipped with rice outlet (11), when the metering cavity (21) rotates to the discharge channel (31) above, the metering cavity (21) is communicated with the discharge channel (31), the bottom wall of the rice bin (1) is equipped with rice outlet (11), the rice outlet (11) is compatible with the partition disc (2), the rice bin (1) is equipped with the baffle (12) for shielding part of the rice outlet (11), the baffle (12) covers the discharge channel (31) above, the area of the area covered by the baffle (12) is greater than the cross-sectional area of the metering cavity (21).

2. The metering mechanism for rice for a cooking appliance according to claim 1, characterized in that, The base (3) is provided with a groove (32), and the partition disc (2) is rotationally arranged in the groove (32). The discharge channel (31) is formed on the groove bottom wall of the groove (32).

3. The metering mechanism for rice for a cooking appliance according to claim 2, characterized in that, The metering rice mechanism for cooking utensil includes a motor (4) arranged on the base (3). The motor (4) is provided with an output shaft (41). The output shaft (41) is in driving connection with the partition disc (2).

4. The metering mechanism for rice for a cooking appliance according to claim 3, characterized in that, The radial length of the discharge channel (31) is greater than or equal to the radial length of the metering cavity (21).

5. The metering mechanism for rice for a cooking appliance according to claim 4, characterized in that, The baffle (12) is a hollow structure. The bottom side wall of the baffle (12) is provided with an elastic baffle plate (13). The elastic baffle plate (13) is used for abutting against the cavity wall of the metering cavity (21) so that the rice in the rice bin (1) cannot enter into one of the metering cavities (21) above the discharge channel (31).

6. The rice measuring mechanism for a cooking appliance according to claim 3, wherein, The metering rice mechanism for cooking utensil includes a transmission member (5) penetrating through the base (3). One end of the transmission member (5) is in driving connection with the output shaft (41), and the other end is connected with the partition disc (2).

7. The metering mechanism for rice for a cooking appliance according to claim 6, characterized in that, An inner gear groove (22) is formed on the bottom of the partition disc (2). A transmission gear (51) is arranged on the side wall of the transmission member (5). The transmission gear (51) is in meshing connection with the inner gear groove (22).

8. The rice measuring mechanism for a cooking appliance according to claim 1, wherein, The bottom wall of the rice bin (1) is an arc-shaped concave wall converging from all around to the direction of the rice outlet (11).

9. The rice measuring mechanism for a cooking appliance according to claim 1, wherein, The number of the metering cavities (21) is eight, and the metering cavities (21) are annularly distributed on the partition disc (2).

10. The rice measuring mechanism for a cooking appliance according to claim 1, wherein, A handle (15) is arranged in the rice bin (1). A downwardly extending sealing edge is arranged on the bottom wall of the rice bin (1). A clamping groove (14) is arranged on the sealing edge. A clamping buckle (33) is arranged on the outer side wall of the base (3). The clamping buckle (33) is in clamping connection with the clamping groove (14).

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