Cleaning device for processing pickled vegetables with convenient feeding

Abstract

This application discloses a cleaning device for pickled vegetable processing that facilitates loading, including a cleaning platform, a cleaning water tank, a spray plate, and a cleaning chamber. The cleaning platform has a supporting base and a cleaning water tank at its rear, which is connected to the spray plate via a pumping structure, allowing the spray plate to spray water onto the cleaning chamber. The cleaning chamber slides back and forth on the cleaning platform via a sliding structure, switching between areas below and not below the spray plate. Simultaneously, a vertical plate and a screw conveyor are installed at the front of the cleaning platform to achieve automatic loading of pickled vegetables. This device, through the coordinated operation of its components, achieves a streamlined process from automatic loading to efficient cleaning of pickled vegetables, offering advantages such as ease of operation and excellent cleaning results. It can be widely applied to the cleaning processes in the pickled vegetable processing industry.

Description

Technical Field

[0001] This utility model relates to the field of pickled vegetable processing technology, specifically to a cleaning device for easy loading of pickled vegetables. Background Technology

[0002] In the pickled vegetable processing industry, cleaning the pickled vegetables is a crucial production step.

[0003] Traditional pickled vegetable cleaning devices often suffer from inconvenient loading, requiring manual handling of the pickled vegetables into the cleaning chamber, which is time-consuming and labor-intensive.

[0004] At the same time, the existing cleaning equipment has a relatively complex structure, making it difficult to maintain and operate, which increases the production costs and management difficulties for enterprises. Utility Model Content

[0005] In response to the aforementioned technical problems, this application solves the problems in the prior art where cleaning pickled vegetables is mostly inconvenient for feeding materials and the cleaning device has a relatively complex structure.

[0006] To achieve the above objectives, the technical solution adopted in this application is: a cleaning device for processing pickled vegetables that facilitates feeding.

[0007] The system includes a cleaning platform with a support base around its lower surface, a cleaning water tank at the rear of the platform with a water storage chamber, a support column at the bottom, a water supply pipe at the top, a first motor mount on the rear sides of the cleaning platform on the left and right sides of the cleaning water tank, a spray plate at the front of the top of the cleaning water tank with a flow distribution chamber, and several spray holes on the lower surface of the spray plate.

[0008] A pumping structure is provided between the water storage chamber and the diversion chamber;

[0009] The upper surface of the cleaning platform is provided with a cleaning box that slides back and forth along the front and rear sides of the cleaning platform via a sliding structure. The bottom surface of the cleaning box is provided with filter holes, and a gap is formed between the upper surface of the cleaning platform and the bottom surface of the cleaning box.

[0010] The cleaning tank can slide and switch between the area below the spray plate and the area not below the spray plate.

[0011] To better realize this utility model, the sliding structure is further divided into two sets, which are respectively arranged on the left and right sides of the cleaning box. Each set of the sliding structure includes two lead screw support seats, which are arranged on the upper surface of the cleaning platform along the front and rear sides of the cleaning platform.

[0012] A first motor is mounted on the first motor base, and a lead screw body is rotatably mounted between the two lead screw support seats. One end of the lead screw body extends to a corresponding lead screw support seat and is connected to the output end of the first motor. Two guide rods are also mounted between the two lead screw support seats, and the two guide rods are located on the left and right sides of the lead screw body, respectively.

[0013] A slider is slidably sleeved on the lead screw body. The slider is provided with a sliding through hole on the left and right sides of the lead screw body, respectively, which is located along the front and rear sides of the cleaning platform. The two sliding through holes are respectively sleeved on the outside of the two guide rods. The bottom of the left and right sides of the cleaning box is fixedly connected to one of the sliders.

[0014] To better realize this utility model, the top surface of the cleaning water tank is provided with a suction hole, and the upper surface of the spray plate is provided with an injection hole.

[0015] The pumping structure includes a pump, with an input pipe connected to the input end of the pump and an output pipe connected to the output end of the pump. The input pipe passes through the suction hole and enters the bottom of the water storage chamber, and the output pipe is connected to the injection hole.

[0016] To better realize this utility model, a vertical plate is further provided on the upper surface of the front side of the cleaning platform, a second motor base is provided on the lower surface of the front side of the cleaning platform, and the supporting surface of the second motor base is exposed in the front area of ​​the cleaning platform.

[0017] A screw conveyor is provided between the top of the upright plate and the second motor base.

[0018] To better realize this utility model, a second motor is further provided on the second motor base; the screw conveyor includes a screw conveyor outer cylinder, one end of which is fixedly connected to the top of the vertical plate, and the other end of which is fixedly connected to the front side of the cleaning platform. A rotating shaft is rotatably provided inside the screw conveyor outer cylinder, and helical blades are helically provided on the outside of the rotating shaft along the axial direction. One end of the rotating shaft extends out of the screw conveyor outer cylinder toward the second motor base and is connected to the output end of the second motor. A feed port communicating with the inside of the screw support is provided above the end side wall of the screw conveyor outer cylinder near the second motor.

[0019] To better realize this utility model, the end of the rotating shaft near the vertical plate is rotatably connected to the outer cylinder of the screw conveyor via a first bearing and a connecting rod, and the end of the rotating shaft near the second motor is rotatably connected to the outer cylinder of the screw conveyor via a second bearing.

[0020] To better realize this utility model, the top surface of the upright plate is further configured as a guide surface inclined towards the rear side of the cleaning platform, and the output channel of the outer cylinder of the screw conveyor near the upright plate is configured as a curved pipe, with the output port of the curved pipe located above or behind the first bearing.

[0021] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0022] 1. In this utility model, by setting up a screw conveyor, the automatic feeding of pickled vegetables is realized, which reduces the amount of manual handling, greatly improves the feeding efficiency, reduces labor costs, and meets the needs of large-scale production.

[0023] 2. In this invention, the cleaning box can slide back and forth along the front and rear sides of the cleaning platform, flexibly switching between the area below the spray plate and the area not below the spray plate. This design allows the loading and cleaning processes to be independent yet closely connected. Operators can load materials when the cleaning box is in the area not below the spray plate, avoiding the impact of cleaning water on the operator and improving the safety and convenience of operation. After loading is completed, the cleaning box is slid under the spray plate for cleaning, ensuring the orderly progress of the cleaning process.

[0024] 3. In this utility model, several spray holes are evenly opened on the lower surface of the spray plate, which can make the cleaning water evenly sprayed on the pickled vegetables in the cleaning box, avoiding cleaning dead corners. With the operator's stirring or kneading operation, the pickled vegetables can be thoroughly cleaned, ensuring the cleanliness of the pickled vegetables.

[0025] 4. In this utility model, the water pumping structure between the cleaning water tank and the spray plate realizes the recycling of cleaning water. The water in the cleaning water tank can be pumped to the spray plate to clean the pickled vegetables. The water in the cleaning process flows away through the filter holes on the bottom of the cleaning tank and can be collected, treated and recycled according to the actual situation, which improves the utilization rate of water resources, reduces production costs, and also meets environmental protection requirements.

[0026] 5. In this utility model, the overall structure is reasonably designed, the components are tightly connected and their functions are clearly defined. Operators only need to control the start and stop of the corresponding motors and water pumps to complete the entire cleaning process, making the operation simple and easy to understand. At the same time, the device has a simple structure, and the components are easy to disassemble and install, which facilitates daily maintenance and repair work and reduces the equipment maintenance costs for enterprises. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 for Figure 1 A sectional view;

[0030] Figure 3 This is a structural diagram of the cleaning platform and screw conveyor;

[0031] Figure 4 for Figure 3 Top view;

[0032] Figure 5 for Figure 4 Sectional view at point AA;

[0033] Figure 6 This is a schematic diagram showing the interaction between the sliding structure and the cleaning tank.

[0034] Figure 7 This is a schematic diagram of the pumping structure;

[0035] Figure 8 for Figure 5 Enlarged view of section H in the middle.

[0036] Explanation of reference numerals in the attached drawings: 101-Cleaning platform; 102-Support base; 103-Cleaning water tank; 104-Support column; 105-First motor base; 106-Suction hole; 107-Spray plate; 108-Injection hole; 109-Upright plate; 110-Second motor base; 111-Spray hole; 112-Guide surface; 113-Water supply pipe; 20-Screw conveyor; 201-Outer cylinder of screw conveyor; 202- 203-Rotor shaft; 204-First bearing; 205-Connecting rod; 206-Second bearing; 207-Second motor; 208-Feed inlet; 301-Screw support seat; 302-Screw body; 303-Guide rod; 304-Slider; 305-First motor; 401-Washing tank; 402-Filter hole; 501-Water pump; 502-Water pump input pipe; 503-Water pump output pipe. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0042] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] Example 1

[0044] like Figures 1 to 8 As shown, a cleaning device for processing pickled vegetables that facilitates loading includes a cleaning platform 101. Support bases 102 are arranged around the lower surface of the cleaning platform 101. A cleaning water tank 103 is located at the rear of the cleaning platform 101, containing a water storage chamber. A support column 104 is provided on the bottom surface of the cleaning water tank 103, and a water supply pipe 113 is provided on the top surface of the cleaning water tank 103. A first motor base 105 is respectively provided on the rear sides of the left and right sides of the cleaning platform 101 corresponding to the cleaning water tank 103. A spray plate 107 is provided on the front side of the top of the cleaning water tank 103, containing a flow distribution chamber. Several spray holes 111 are opened on the lower surface of the spray plate 107.

[0045] A pumping structure is provided between the water storage chamber and the diversion chamber;

[0046] The upper surface of the cleaning platform 101 is provided with a cleaning tank 401 that slides back and forth along the front and rear sides of the cleaning platform 101 via a sliding structure. The inner bottom surface of the cleaning tank 401 is provided with a filter hole 402, and a gap is formed between the upper surface of the cleaning platform 101 and the bottom surface of the cleaning tank 401 (the gap value is greater than or equal to the height value of the lead screw support 301. Of course, the gap value can also be set according to actual needs).

[0047] The cleaning tank 401 can slide and switch between the area below the spray plate 107 and the area not below the spray plate 107.

[0048] like Figures 1 to 8As shown, in this embodiment, the sliding structure consists of two sets, which are respectively arranged on the left and right sides of the cleaning tank 401. Each set of the sliding structure includes two lead screw support seats 301, which are arranged on the upper surface of the cleaning platform 101 along the front and rear sides of the cleaning platform 101.

[0049] A first motor 305 is provided on the first motor base 105. A lead screw body 302 is rotatably provided between the two lead screw support seats 301. One end of the lead screw body 302 extends out to a corresponding lead screw support seat 301 and is connected to the output end of the first motor 305. Two guide rods 303 are also provided between the two lead screw support seats 301, and the two guide rods 303 are respectively located on the left and right sides of the lead screw body 302.

[0050] A slider 304 is slidably sleeved on the lead screw body 302. The slider 304 located on the left and right sides of the lead screw body 302 has a sliding through hole corresponding to the front and rear sides of the cleaning platform 101, respectively. The two sliding through holes are respectively sleeved on the outside of the two guide rods 303. The bottom of the left and right sides of the cleaning box 401 is fixedly connected to one slider 304.

[0051] like Figures 1 to 8 As shown, in this embodiment, the top surface of the cleaning water tank 103 is provided with a suction hole 106, and the upper surface of the spray plate 107 is provided with an injection hole 108.

[0052] The pumping structure includes a pump 501, with an input pipe 502 connected to the input end of the pump 501 and an output pipe 503 connected to the output end of the pump 501. The input pipe 502 passes through the suction hole 106 and enters the bottom of the water storage chamber. The output pipe 503 is connected to the injection hole 108.

[0053] like Figures 1 to 8 As shown, in this embodiment, a vertical plate 109 is provided on the upper surface of the front side of the cleaning platform 101, a second motor base 110 is provided on the lower surface of the front side of the cleaning platform 101, and the support surface of the second motor base 110 is exposed in the front area of ​​the cleaning platform 101.

[0054] A screw conveyor 20 is provided between the top of the upright plate 109 and the second motor base 110.

[0055] like Figures 1 to 8As shown, in this embodiment, a second motor 207 is provided on the second motor base 110; the screw conveyor 20 includes a screw conveyor outer cylinder 201, one end of which is fixedly connected to the top of the vertical plate 109, and the other end of which is fixedly connected to the front side of the cleaning platform 101. A rotating shaft 202 is rotatably provided inside the screw conveyor outer cylinder 201, and a spiral blade 203 is spirally provided on the outside of the rotating shaft 202 along the axial direction. One end of the rotating shaft 202 extends out of the screw conveyor outer cylinder 201 toward the second motor base 110 and is connected to the output end of the second motor 207. A feed port 208 communicating with the inside of the screw support seat 301 is provided above the end side wall of the screw conveyor outer cylinder 201 near the second motor 207.

[0056] like Figures 1 to 8 As shown, in this embodiment, the end of the rotating shaft 202 near the vertical plate 109 is rotatably connected to the outer cylinder 201 of the screw conveyor via a first bearing 204 and a connecting rod 205 (the first bearing 204 is existing mature technology, including an inner ring and an outer ring; the end of the rotating shaft 202 near the vertical plate 109 is fixedly connected to the inner ring of the first bearing 204; one end of the connecting rod 205 is fixedly connected to the outer ring of the first bearing 204; and the other end of the connecting rod 205 is fixedly connected to the inner wall surface of the outer cylinder 201 of the screw conveyor). The end of the rotating shaft 202 near the second motor 207 is rotatably connected to the outer cylinder 201 of the screw conveyor via a second bearing 206.

[0057] like Figures 1 to 8 As shown, in this embodiment, the top surface of the upright plate 109 is configured as a guide surface 112 inclined toward the rear side of the cleaning platform 101, and the output channel of the outer cylinder 201 of the screw conveyor near the upright plate 109 is configured as a curved pipe, and the output port of the curved pipe is located above or behind the first bearing 204.

[0058] Water supply pipe 113 is used to replenish the water source. The first motor 305, the second motor 207, and the water pump 501 are all existing mature technologies, and different models can be selected or replaced according to actual usage (waterproof motors can be selected for the first motor 305 and the second motor 207). A mature water level monitoring device can be installed in the cleaning water tank 103 to monitor the water level (or, to observe the water replenishment in the cleaning water tank 103, the tank can be made of transparent material, and water can be replenished in small amounts multiple times until empty. During cleaning, the water storage capacity in the cleaning water tank 103 is sufficient to meet the cleaning needs for a day's cleaning process. Of course, water can also be replenished as needed based on water usage.)

[0059] The material of this device can be selected arbitrarily according to actual conditions, as long as it does not pose a risk of corrosion when in contact with salt water or acidic pickled vegetables. The two first motors 305 are pre-tested to ensure synchronous rotation (of course, existing mature transmission methods can also be used, with one first motor 305 on one side of the cleaning platform 101 and a synchronous belt or gear connection on the other side).

[0060] Working principle:

[0061] The cleaning equipment is placed inside the cleaning workshop, which has existing drainage channels on the floor (the cleaning workshop will be cleaned and disinfected daily or weekly to meet the hygiene requirements of the actual production environment).

[0062] The operator drives the first motor 305, the output end of the first motor 305 rotates and drives the lead screw body 302 to rotate, thereby driving the slider 304 to move towards the front side of the cleaning platform 101 until the top opening of the cleaning tank 401 is completely exposed to the outside of the spray plate 107. At the same time, the front wall of the cleaning tank 401 is attached to the rear wall of the vertical plate 109. At this time, the top opening of the cleaning tank 401 can receive the material (pickled vegetables) output from the output port of the curved pipe.

[0063] The operator drives the second motor 207 and puts the pickled vegetables into the feed inlet 208. As the output end of the second motor 207 rotates, it drives the rotating shaft 202 and the spiral blade 203 to rotate, so that the pickled vegetables entering the feed inlet 208 are carried into the output of the curved tube, then fall onto the guide surface 112, and then slide into the washing tank 401.

[0064] Then, the operator stops the second motor 207 and drives the first motor 305, causing the cleaning tank 401 to move towards the rear of the cleaning platform 101 until it is below the spray plate 107. Simultaneously, the water pump 501 is driven, allowing the cleaning water in the cleaning tank 103 to enter the diversion chamber of the spray plate 107. The water then falls through the spray holes 111 (which are evenly spaced on the lower surface of 107 to avoid cleaning dead zones) into the cleaning tank 401. The operator uses readily available tools or by hand to stir or knead the pickled vegetables placed in the cleaning tank 401 (repeated multiple times to ensure even cleaning). Water from the cleaning process flows through the filter holes 402 onto the upper surface of the cleaning platform 101 and then onto the floor of the cleaning workshop until it is collected by the drainage channel. The wastewater is then treated according to the actual conditions until it meets external environmental emission standards before being discharged or collected for recycling. (Of course, during the cleaning process, as the water falls through the filter hole 402, a collection tray can be placed between the cleaning platform 101 and the cleaning tank 401 to collect the wastewater.)

[0065] After cleaning, stop the water pump 501, and the operator can stand on the left or right side of the cleaning platform 101 to take out the cleaned pickled vegetables from the cleaning tank 401.

[0066] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cleaning device for processing pickled vegetables that facilitates loading, characterized in that: The system includes a cleaning platform (101), a support base (102) is provided around the lower surface of the cleaning platform (101), a cleaning water tank (103) is provided at the rear side of the cleaning platform (101), the cleaning water tank (103) has a water storage chamber, a support column (104) is provided on the bottom surface of the cleaning water tank (103), a water supply pipe (113) is provided on the top surface of the cleaning water tank (103), a first motor base (105) is provided on the rear side of the left and right sides of the cleaning platform (101) corresponding to the cleaning water tank (103), a spray plate (107) is provided on the front side of the top of the cleaning water tank (103), the spray plate (107) has a diversion chamber, and a plurality of spray holes (111) are opened on the lower surface of the spray plate (107). A pumping structure is provided between the water storage chamber and the diversion chamber; The upper surface of the cleaning platform (101) is provided with a cleaning box (401) that slides back and forth along the front and rear sides of the cleaning platform (101) via a sliding structure. The inner bottom surface of the cleaning box (401) is provided with a filter hole (402), and a gap is formed between the upper surface of the cleaning platform (101) and the bottom surface of the cleaning box (401). The cleaning tank (401) can slide and switch between the area below the spray plate (107) and the area not below the spray plate (107).

2. The cleaning device for processing pickled vegetables that facilitates feeding, as described in claim 1, is characterized in that: The sliding structure consists of two sets, which are respectively arranged on the left and right sides of the cleaning tank (401). Each set of the sliding structure includes two lead screw support seats (301). The two lead screw support seats (301) are arranged on the upper surface of the cleaning platform (101) along the front and rear sides of the cleaning platform (101). A first motor (305) is provided on the first motor base (105), and a lead screw body (302) is rotatably provided between the two lead screw support seats (301). One end of the lead screw body (302) extends out to a corresponding lead screw support seat (301) and is connected to the output end of the first motor (305). Two guide rods (303) are also provided between the two lead screw support seats (301), and the two guide rods (303) are respectively located on the left and right sides of the lead screw body (302). A slider (304) is slidably sleeved on the lead screw body (302). The slider (304) located on the left and right sides of the lead screw body (302) is respectively provided with a sliding through hole along the front and rear sides of the cleaning platform (101). The two sliding through holes are respectively sleeved on the outside of the two guide rods (303). The bottom of the left and right sides of the cleaning box (401) is respectively fixedly connected to one of the sliders (304).

3. A cleaning device for processing pickled vegetables that facilitates feeding, as described in claim 2, characterized in that: The top surface of the cleaning water tank (103) is provided with a suction hole (106), and the upper surface of the spray plate (107) is provided with an injection hole (108). The pumping structure includes a pump (501), the input end of which is connected to a pump input pipe (502), and the output end of which is connected to a pump output pipe (503). The pump input pipe (502) passes through the suction hole (106) and enters the bottom of the water storage chamber. The pump output pipe (503) is connected to the injection hole (108).

4. A cleaning device for processing pickled vegetables that facilitates feeding, as described in claim 3, characterized in that: A vertical plate (109) is provided on the upper surface of the front side of the cleaning platform (101), and a second motor base (110) is provided on the lower surface of the front side of the cleaning platform (101), and the support surface of the second motor base (110) is exposed in the front area of ​​the cleaning platform (101). A screw conveyor (20) is provided between the top of the upright plate (109) and the second motor base (110).

5. A cleaning device for processing pickled vegetables that facilitates feeding, as described in claim 4, characterized in that: A second motor (207) is provided on the second motor base (110); the screw conveyor (20) includes a screw conveyor outer cylinder (201), one end of the screw conveyor outer cylinder (201) is fixedly connected to the top of the vertical plate (109), and the other end of the screw conveyor outer cylinder (201) is fixedly connected to the front side of the cleaning platform (101). A rotating shaft (202) is rotatably provided inside the screw conveyor outer cylinder (201), and a spiral blade (203) is spirally provided on the outside of the rotating shaft (202) along the axial direction. One end of the rotating shaft (202) extends out of the screw conveyor outer cylinder (201) toward the second motor base (110) and is connected to the output end of the second motor (207). A feed port (208) communicating with the inside of the screw support base (301) is provided above the end side wall of the screw conveyor outer cylinder (201) near the second motor (207).

6. A cleaning device for processing pickled vegetables that facilitates feeding, as described in claim 5, characterized in that: The end of the rotating shaft (202) near the vertical plate (109) is rotatably connected to the outer cylinder of the screw conveyor (201) via a first bearing (204) and a connecting rod (205). The end of the rotating shaft (202) near the second motor (207) is rotatably connected to the outer cylinder of the screw conveyor (201) via a second bearing (206).

7. A cleaning device for processing pickled vegetables that facilitates feeding, as described in claim 6, characterized in that: The top surface of the upright plate (109) is configured as a guide surface (112) inclined toward the rear side of the cleaning platform (101). The output channel of the outer cylinder (201) of the screw conveyor near the upright plate (109) is configured as a curved pipe. The output port of the curved pipe is located above or behind the first bearing (204).

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