A portable radar signal simulator

Abstract

The utility model relates to radar equipment auxiliary device technical field discloses a portable radar signal simulator, including box and movable seat, the inside hollow of box is used for placing installation radar signal simulator, and the periphery side wall of box all is equipped with opening, is used for the egress of radar signal simulator, movable seat sets up in the bottom surface of box interior, and radar signal simulator installs in movable seat, and movable seat is used for the radar signal simulator from the periphery opening of box stretches out and works. To solve the technical problem that the radar signal simulator in relevant technology needs to be oriented to different directions when using, the fixed box structure cannot be used flexibly, and it is difficult to quickly deploy.

Description

Technical Field

[0001] This utility model relates to the field of radar equipment auxiliary devices, and in particular to a portable radar signal simulator. Background Technology

[0002] Radar signal simulators require proper protection during transportation and storage. Existing protection methods often employ simple box structures, necessitating the removal of the entire simulator from the box for use, which is inconvenient and difficult to deploy quickly in complex environments such as the field. Furthermore, simulators may need to be oriented in different directions during operation, and fixed box structures cannot meet the requirements for flexible use. Utility Model Content

[0003] This application discloses a portable radar signal simulator to solve the technical problems of radar signal simulators in related technologies, which require different orientations during use, have fixed box structures that cannot be used flexibly, and are difficult to deploy quickly.

[0004] To solve the above problems, the present invention adopts the following technical solution: A portable radar signal simulator, comprising: The enclosure is hollow inside and is used to house and install the radar signal simulator. The enclosure has openings on all four side walls for the radar signal simulator to enter and exit. The movable base is located on the bottom surface inside the enclosure. The radar signal simulator is mounted on the movable base, which is used to extend the radar signal simulator from the openings around the enclosure for operation.

[0005] Optionally, each opening of the enclosure is provided with a shield, which is used to open or close the corresponding opening.

[0006] Optionally, the obstruction is a roller blind, which is rolled up to one edge of the opening; a limiting device is provided on the other edge of the opening, and a locking element is provided at the free end of the roller blind. The locking element and the limiting device are connected to fix the roller blind to close the opening.

[0007] Optionally, the limiting device includes a slot and a block; the slot is located on the edge of the opening away from the fixed end of the roller shutter, and the block is rotatably located in the slot; a gap is left between the block and the side wall of the slot; a reset element is provided at the rotatable connection of the block for driving the block to rotate toward the side wall of the slot. The locking component is inserted into the gap between the side wall of the slot and the card block. The card block engages with the locking component under the drive of the reset component to fix the blocking component.

[0008] Optionally, the movable seat includes a base, a first sliding plate, and a second sliding plate; the base is fixed to the bottom surface inside the box, the first sliding plate is slidably mounted on the base, and the second sliding plate is slidably mounted on the first sliding plate; the sliding directions of the first sliding plate and the second sliding plate are perpendicular to each other, and are respectively used to extend from two adjacent openings of the box.

[0009] Optionally, the top of the second slide plate is provided with several mounting holes for fasteners to be inserted to secure the radar signal simulator.

[0010] Optionally, the bottom of the first skateboard and the bottom of the second skateboard are respectively provided with rotating plates; when the first skateboard or the second skateboard slides out from the corresponding opening, the rotating plates can be rotated to be perpendicular to the first skateboard or the second skateboard, and the free end of the rotating plates contacts the ground to support the corresponding skateboard.

[0011] Optionally, the rotating plate is located at the front and rear edges of the first sliding plate in the sliding direction; a limiting groove is provided on the base corresponding to the position of the rotating plate; When the first slide plate slides out to the preset position, the rotating plate on the side near the opening is located above the limiting groove, and the rotating plate rotates toward the limiting groove and is embedded in the limiting groove to restrict the first slide plate from continuing to slide outward.

[0012] Optionally, the rotating plate is located at the front and rear edges of the second sliding plate in the sliding direction; a limiting groove is provided on the first sliding plate at the position corresponding to the rotating plate. When the second slide plate slides out to the preset position, the rotating plate on the side near the opening is located above the limiting groove, and the rotating plate rotates toward the limiting groove and is embedded in the limiting groove to restrict the second slide plate from continuing to slide outward.

[0013] Optionally, the first and second skateboards are equipped with handles on both sides near the opening, making it easier for staff to hold and slide them.

[0014] The technical solution adopted in this utility model can achieve the following beneficial effects: 1. This utility model provides a portable radar signal simulator. Through the core structure of a hollow box with openings around the four sides and a movable base, the box can be completely stored and protected during transportation to avoid collision damage. When in use, the device can be extended directly from the opening through the movable base without having to be taken out as a whole. This completely solves the contradiction between protection and ease of use in existing protective boxes, and greatly improves work efficiency. 2. The portable radar signal simulator of this utility model has a movable base with a double-layer sliding structure of base, first sliding plate and second sliding plate, and the sliding directions are perpendicular to each other. The radar signal simulator can be extended from the four openings of the box in multiple directions, adapting to the deployment needs of different field work spaces and making it more flexible. 3. The portable radar signal simulator of this utility model is equipped with a roller shutter-type shield at each opening, which can completely close the opening during transportation, effectively preventing dust and debris from entering, while also preventing the equipment from shaking inside the box; the roller shutter structure occupies little space and is easy to open and close, making it more suitable for the protection needs of multi-opening scenarios compared to traditional baffles. 4. The portable radar signal simulator of this utility model has a rotating plate that can rotate to a vertical position and contact the ground after the skateboard slides out, providing bottom support for the skateboard, improving the stability of the equipment after deployment, and preventing the equipment from tilting due to uneven ground; it can also embed a limiting groove when the skateboard slides out to a preset position to realize the excessive sliding limit of the skateboard and prevent it from falling off the base or the first skateboard. It achieves two goals at once, simplifying the structure while improving the safety of use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure disclosed in some embodiments of this application; Figure 2 It is attached Figure 1 Sectional view at point aa; Figure 3 It is attached Figure 2 Enlarged view of point A in the middle; Figure 4 It is attached Figure 3 Enlarged view at point B in the middle; Figure 5 This is a schematic diagram of the front pull-out disclosed in some embodiments of this application; Figure 6 It is attached Figure 5 Sectional view at point bb; Figure 7 It is attached Figure 6 Enlarged view at point C; Figure 8 It is attached Figure 6 Enlarged view at point D; Figure 9 This is a right-side pull-out schematic diagram disclosed in some embodiments of this application; Figure 10 It is attached Figure 9 Sectional view at cc; Figure 11 It is attached Figure 10 Enlarged view at point E in the middle; Figure 12 It is attached Figure 10 Enlarged view of point F in the middle.

[0017] In the diagram: 1-box body, 101-opening, 102-roller shutter, 1021-locking element, 103-block, 104-handle, 105-slot, 2-movable seat, 201-base, 2011-first limiting slot, 202-first sliding plate, 2021-first rotating plate, 2022-first placement slot, 2023-second limiting slot, 203-second sliding plate, 2031-second rotating plate, 2032-second placement slot, 2033-fixing hole, 204-handle. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0020] Since the radar signal simulator needs to face different directions when in use, the fixed box 1 structure cannot be used flexibly and is difficult to deploy quickly. Therefore, a box 1 with openings 101 on all four sides is set up, and the radar signal simulator is extended from each opening 101 by setting up a movable seat 2.

[0021] The following is in conjunction with the appendix Figures 1 to 4 The present application provides a detailed description of a portable radar signal simulator through specific embodiments and application scenarios.

[0022] like Figure 1 and 2As shown, a portable radar signal simulator includes a housing 1 and a movable base 2. The housing 1 is hollow inside for housing and mounting the radar signal simulator, and all four sides of the housing 1 have openings 101 for the radar signal simulator to enter and exit. Each of the four openings 101 of the housing 1 has a blocking component and a limiting device. The blocking component is used to open or close the corresponding opening 101, and the limiting device is used to limit and fix the blocking component. The movable base 2 is located on the bottom surface inside the housing 1, and the radar signal simulator is mounted on the movable base 2. The movable base 2 is used to extend the radar signal simulator from the four openings 101 of the housing 1 for operation. The top of the housing 1 is also provided with a handle 104 for easy carrying by the operator. In the transport state, the radar signal simulator is fixed to the hollow area inside the housing 1 by the movable seat 2. The openings 101 around the housing 1 are closed by the shielding parts to form a fully enclosed protection. It can be carried and transported by holding the handle 104 to avoid the equipment being bumped, dust intrusion or displacement during transportation. In the use state, the shielding parts of the corresponding openings 101 of the housing 1 are opened, and the radar signal simulator is driven by the movable seat 2 to extend from each opening 101 of the housing 1 to the preset position. It can be quickly deployed and used without taking the entire equipment out of the housing 1.

[0023] like Figure 1-4 As shown, in one embodiment, the housing 1 is preferably a cuboid structure with a hollow interior forming a receiving cavity. The size of the receiving cavity is adapted to the external size of the radar signal simulator to ensure that the radar signal simulator can be placed inside the receiving cavity. Rectangular openings 101 are provided on the side walls of the front, rear, left, and right sides of the housing 1. The height and width of the openings 101 are greater than the height and width of the radar signal simulator, respectively, to ensure that the movable seat 2 can drive the radar signal simulator to smoothly enter and exit from each opening 101. The preferred shielding component is a roller blind 102, with a set of roller blinds 102 corresponding to each opening 101. The fixed end of the roller blind 102 is rolled inside the side wall of the housing 1 above the opening 101. It should be noted that the fixed end of the roller blind 102 is not shown in the figure. The roller blind 102 is existing technology and only provides the shielding effect. The roller blind 102 is rotatably connected to the inner side wall of the housing 1 through its built-in roller and bearing. A torsion spring is added to the end of the roller to realize the automatic retraction function of the roller blind 102, which is not the main innovation of this application. A locking component 1021 is fixedly provided at the free end of the roller blind 102 away from the roller. The locking component 1021 is a hard plastic block or metal block with a hook-shaped shape. The locking component 1021 is connected with the limiting device to limit and fix the roller blind 102. The limiting device is located on the edge of the opening 101 away from the reel, and specifically includes a slot 105, a locking block 103, and a reset component; the slot 105 is a U-shaped opening on the edge of the opening 101 of the housing 1. A groove is formed, the width of which matches the thickness of the locking member 1021, and the depth is greater than the insertion length of the locking member 1021, ensuring that the locking member 1021 can be fully embedded. The locking block 103 is rotatably connected to the inner side wall of the slot 105 via a pin. A gap is reserved between the locking block 103 and the side wall of the slot 105 to accommodate the insertion of the locking member 1021. The side of the locking block 103 near the gap is set in a barb shape to match the locking member 1021. The reset member is preferably a torsion spring, which is fitted onto the pin of the locking block 103. One end of the torsion spring is fixed to the side wall of the slot 105, and the other end is fixed to the locking block 103. In its initial state, it drives the locking block 103 to rotate toward the other side wall of the slot 105, so that the gap keeps closing. The torsion spring is not shown in the figure. It is an existing structure and only serves to drive the locking block 103 to rotate. It will not be described in detail here. Specifically, when closing the opening 101, the locking member 1021 at the free end of the roller blind 102 is manually pulled and inserted into the gap of the slot 105. The locking member 1021 presses against the locking block 103 to overcome the elastic force of the reset member. After it is fully inserted, the reset member drives the locking block 103 to spring back. The hook-shaped structure of the locking member 1021 and the locking block 103 are matched and engaged to fix the roller blind 102, thereby closing the opening 101. When opening, the locking block 103 is manually moved to disengage from the locking member 1021. The roller automatically retracts the roller blind 102 under the action of the torsion spring, and the opening 101 is in the open state.

[0024] like Figure 5-12 As shown, in one embodiment, the movable seat 2 is disposed on the bottom surface inside the box 1 and has a multi-layer sliding structure, including a base 201, a first sliding plate 202 and a second sliding plate 203, all of which are rectangular plate structures; The base 201 is preferably fixed to the bottom surface inside the housing 1 by bolts. The top of the base 201 has a first sliding groove in the front-to-back direction. The bottom of the first sliding plate 202 is fitted in the first sliding groove and slides in the front-to-back direction. The top of the first sliding plate 202 has a second sliding groove in the left-to-right direction. The bottom of the second sliding plate 203 is fitted in the second sliding groove and slides in the left-to-right direction. The top of the second sliding plate 203 has several mounting holes for fasteners to be inserted to fix the radar signal simulator. The fasteners are preferably bolts. Among them, such as Figure 5 and 6 As shown, the first slide plate 202 and the second slide plate 203 slide together along the first slide groove, allowing the radar signal simulator to extend from the openings 101 on the front and rear sides; as Figure 9 and 10As shown, the second slide plate 203 slides left and right along the second slide groove, so that the radar signal simulator can extend from the openings 101 on the left and right sides. Specifically, the bottom of the first slide plate 202 and the second slide plate 203 are respectively provided with a first rotating plate 2021 and a second rotating plate 2031. When the first slide plate 202 or the second slide plate 203 extends out of the housing 1, the first rotating plate 2021 or the second rotating plate 2031 is rotated until it is perpendicular to the first slide plate 202 or the second slide plate 203, and the free end of the first rotating plate 2021 or the second rotating plate 2031 contacts the ground, thereby supporting the first slide plate 202 or the second slide plate 203; preferably, the first The rotation angle of the rotating plate 2021 and the second rotating plate 2031 is 0-90°. At 0°, it is used for storage; at 90°, it is used for support. Preferably, a return spring is provided at the rotational connection between the first rotating plate 2021 and the second rotating plate 2031, so that the first rotating plate 2021 and the second rotating plate 2031 rotate to 90° for support in the initial state. It should be noted that the return spring is prior art and is only used for the return rotation of the first rotating plate 2021 or the second rotating plate 2031, and will not be elaborated upon here. Preferably, the bottom of the first slide plate 202 is provided with a first placement groove 2022, so that the first rotating plate 2021 is rotatably disposed in the first placement groove 2022. The first rotating plate 2021 can be rotated to 0° and stored in the first placement groove 2022, so that the side of the first rotating plate 2021 is flush with the bottom surface of the first slide plate 202. This is to avoid interference between the first rotating plate 2021 and the base 201 after the first slide plate 202 slides back into the housing 1. The bottom of the second slide plate 203 is provided with a second placement groove 2032, so that the second rotating plate 2031 can be rotated to 0° and stored in the second placement groove 2032. The second rotating plate 2031 can be rotated into the second placement groove 2032, so that the side of the second rotating plate 2031 is flush with the bottom surface of the second slide plate 203. This is to avoid interference between the second rotating plate 2031 and the first slide plate 202 after the second slide plate 203 slides back into the housing 1. Specifically, it is necessary to prevent the first sliding plate 202 from sliding out of the first sliding groove; two first limiting grooves 2011 are provided at the bottom of the first sliding groove of the base 201, respectively located at the front and rear ends of the first sliding groove; preferably, there are two first rotating plates 2021 at the bottom of the first sliding plate 202, respectively located at the front and rear ends of the first sliding plate 202; such as Figure 5-8 As shown, when the first slide plate 202 slides forward out of the box 1, the first rotating plate 2021 on the front side of the first slide plate 202 rotates to 90° under the action of the return spring to support it on the ground. The first rotating plate 2021 on the rear side of the first slide plate 202 rotates and embeds into the first limiting groove 2011 on the front side of the first slide groove under the action of the return spring, restricting the first slide plate 202 from continuing to slide forward. Preferably, the rotating connection of the first rotating plate 2021 is located on the outside of the first sliding plate 202, so that the first rotating plate 2021 rotates outward when rotating; the bottom surface of the first limiting groove 2011 is inclined outward, and its inner bottom surface is transitionally connected to the bottom of the first sliding groove, so that when the first sliding plate 202 slides back inward, the first rotating plate 2021 can rotate back to the first placement groove 2022 under the abutment of the bottom surface of the first limiting groove 2011; when the first sliding plate 202 slides outward, when the first rotating plate 2021 rotates and embeds into the first limiting groove 2011, the free end of the first rotating plate 2021 abuts against the outer side wall of the first limiting groove 2011, thereby restricting the first sliding plate 202 from continuing to slide outward; Specifically, it is necessary to prevent the second slide plate 203 from sliding out of the second slide groove; two second limiting grooves 2023 are provided at the bottom of the second slide groove of the first slide plate 202, respectively located at the left and right ends of the second slide groove; preferably, there are two second rotating plates 2031 at the bottom of the second slide plate 203, respectively located at the left and right ends of the second slide plate 203; Figure 9-12 As shown, when the second slide plate 203 slides out of the box 1 to the right, the second rotating plate 2031 on the right side of the second slide plate 203 rotates to 90° under the action of the return spring to support it on the ground, and the second rotating plate 2031 on the left side of the second slide plate 203 rotates and embeds into the second limiting groove 2023 on the right side of the second slide groove under the action of the return spring, thus restricting the second slide plate 203 from continuing to slide to the right. Preferably, the rotating connection of the second rotating plate 2031 is located on the outside of the second sliding plate 203, so that the second rotating plate 2031 rotates outward when rotating; the bottom surface of the second limiting groove 2023 is inclined outward, and its inner bottom surface is transitionally connected to the bottom of the second sliding groove, so that when the second sliding plate 203 slides back inward, the second rotating plate 2031 can rotate back to the second placement groove 2032 under the abutment of the bottom surface of the second limiting groove 2023; when the second sliding plate 203 slides outward, when the second rotating plate 2031 rotates and embeds into the second limiting groove 2023, the free end of the second rotating plate 2031 abuts against the outer side wall of the second limiting groove 2023, thereby restricting the second sliding plate 203 from continuing to slide outward; Specifically, the first slide 202 and the second slide 203 are provided with handles 204 on both sides near the opening 101, so that when the staff slides the first slide 202 or the second slide 203, they can directly hold the handles 204 to apply force to slide.

[0025] The working principle of the portable radar signal simulator disclosed in this application is as follows: During transport preparation, the radar signal simulator is fixed to the top of the second slide plate 203 through the mounting hole. The first slide plate 202 and the second slide plate 203 are slid to completely retract into the box 1, and the radar signal simulator is enclosed by the box 1. The roller shutters 102 of each opening 101 are pulled, the locking piece 1021 is inserted into the slot 105 and fixed by the limiting device, and the opening 101 is closed. At this time, the equipment is in a fully protected transport state. Deployment and use, such as Figure 5 and 6 As shown, after arriving at the work site, the locking block 103 of the limiting device is activated to retract the roller shutter 102 of the front opening 101, exposing the opening 101; the handle 204 on the front side of the first slide plate 202 is grasped, and the first slide plate 202 is slid out from the front opening 101 of the box 1 to the preset position. The first rotating plate 2021 on its rear side is inserted into the first limiting groove 2011 of the base 201 for limiting, and the first rotating plate 2021 on the front side rotates to contact the ground for support. like Figure 9 and 10 As shown, first reset the device, then expose the right opening 101, hold the handle 204 on the right side of the second slide plate 203, slide the second slide plate 203 out from the right opening 101 of the box 1 to the preset position, the second rotating plate 2031 on its left side is embedded into the second limiting groove 2023 of the base 201 for limiting, and the second rotating plate 2031 on its right side rotates to contact the ground for support. At this point, the radar signal simulator is fully extended from housing 1 and can be started and used directly; After use, rotate the turntable in the opposite direction to store it in the placement slot at the bottom of the skateboard. Hold the handle 204 to retract the second skateboard 203 or the first skateboard 202 into the box 1. Close the roller shutter 102 and fix it with the limiting device to complete the storage.

[0026] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0027] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0028] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A portable radar signal simulator, characterized in that, include: The housing is hollow inside and is used to house and install the radar signal simulator. The housing has openings on all four sides for the radar signal simulator to enter and exit. A movable base is located on the bottom surface inside the housing. The radar signal simulator is mounted on the movable base, which is used to extend the radar signal simulator from the openings around the housing for operation.

2. A portable radar signal simulator according to claim 1, characterized in that, Each opening of the box is provided with a shield, which is used to open or close the corresponding opening.

3. A portable radar signal simulator according to claim 2, characterized in that, The obstruction is a roller blind, which is rolled up to one edge of the opening; a limiting device is provided on the other edge of the opening, and a locking member is provided at the free end of the roller blind. The locking member is connected to the limiting device to fix the roller blind to close the opening.

4. A portable radar signal simulator according to claim 3, characterized in that, The limiting device includes a slot and a block; the slot is located on the edge of the opening away from the fixed end of the roller shutter, and the block is rotatably located in the slot; a gap is left between the block and the side wall of the slot; a reset member is provided at the rotatable connection of the block for driving the block to rotate toward the side wall of the slot. The locking member is inserted into the gap between the side wall of the slot and the card block. The card block engages with the locking member under the drive of the reset member to fix the blocking member.

5. A portable radar signal simulator according to claim 1, characterized in that, The movable seat includes a base, a first sliding plate, and a second sliding plate; the base is fixed to the bottom surface inside the box, the first sliding plate is slidably disposed on the base, and the second sliding plate is slidably disposed on the first sliding plate; the sliding directions of the first sliding plate and the second sliding plate are perpendicular to each other, and are respectively used to extend out from two adjacent openings of the box.

6. A portable radar signal simulator according to claim 5, characterized in that, The top of the second slide plate is provided with several mounting holes for fasteners to be inserted to fix the radar signal simulator.

7. A portable radar signal simulator according to claim 6, characterized in that, The bottom of the first skateboard and the bottom of the second skateboard are respectively provided with rotating plates; when the first skateboard or the second skateboard slides out from the corresponding opening, the rotating plate can be rotated to be perpendicular to the first skateboard or the second skateboard, and the free end of the rotating plate contacts the ground to support the corresponding skateboard.

8. A portable radar signal simulator according to claim 7, characterized in that, The rotating plate is located at the front and rear edges of the first sliding plate in the sliding direction; the base is provided with a limiting groove corresponding to the position of the rotating plate; When the first slide plate slides out to the preset position, the rotating plate on the side near the opening is located above the limiting groove, and the rotating plate rotates toward the limiting groove and is embedded in the limiting groove to restrict the first slide plate from continuing to slide outward.

9. A portable radar signal simulator according to claim 8, characterized in that, The rotating plate is disposed at the front and rear edges of the second sliding plate in the sliding direction; the first sliding plate is provided with a limiting groove corresponding to the position of the rotating plate; When the second slide plate slides out to the preset position, the rotating plate on the side near the opening is located above the limiting groove, and the rotating plate rotates toward the limiting groove and is embedded in the limiting groove to restrict the second slide plate from continuing to slide outward.

10. A portable radar signal simulator according to claim 9, characterized in that, The first and second skateboards are each provided with handles on both sides near the opening, making it easy for staff to hold and slide them.

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