Charger with locking function

Abstract

The charger with the locking function is used for charging to-be-charged equipment and comprises a shell, a sliding cabin is arranged in the shell, a guide plate for guiding is arranged on the side face, corresponding to the sliding cabin, in the shell, and an insertion opening is formed in the end, corresponding to the guide plate, of the shell; a spring is arranged between one end, far away from the insertion port, of the interior of the shell and the sliding cabin, the spring pushes the sliding cabin towards the insertion port, a PCBA assembly is arranged at one end, far away from the insertion port, of the interior of the shell, and the PCBA assembly is used for being connected with an external power supply system. A sliding cabin is arranged in the shell, a clamping assembly is arranged between the sliding cabin and the to-be-charged device, the clamping assembly is used for clamping the to-be-charged device, a locking assembly is arranged between the sliding cabin and the shell, and the locking assembly is used for locking the sliding cabin and connecting the to-be-charged device with a PCBA assembly; and the to-be-charged equipment is more convenient to charge.

Description

Technical Field

[0001] This application relates to the technical field of charging devices, and particularly to a charger with a locking function. Background Art

[0002] Flashlight: (English: Flashlight or Torch), abbreviated as flashlight, is a handheld electronic lighting tool. People who like outdoor activities, outdoor adventures, or work usually need to use a flashlight. A typical flashlight has a bulb powered by a battery and a focusing reflector, and a handle-shaped housing for holding. To ensure the battery life of the flashlight, it often needs to be charged, and a charger is required at this time.

[0003] When engaging in outdoor activities, people usually need to drive. When the flashlight runs out of power, it usually needs to be charged in the car. There are usually two ways to charge the existing flashlight. The first way is to connect the charger with a charging cable, and the second way is to remove the battery and then charge it. In both ways, the flashlight does not have a fixed storage position. Since the cars driving outdoors are usually bumpy, it will cause the flashlight to roll back and forth, which may not only damage the flashlight, but also the rolling flashlight may distract the driver, thus possibly causing unnecessary risks. Therefore, a more convenient and safe flashlight charging method is needed in the car. Summary of the Utility Model

[0004] The main purpose of this application is to propose a charger with a locking function, aiming to solve the problem that the existing flashlight charging is inconvenient for flashlight storage.

[0005] To achieve the above object, the charger with a locking function proposed in this application is used to charge a device to be charged, and includes: a housing, a sliding chamber is arranged inside the housing, a guiding plate is arranged on the side of the housing corresponding to the sliding chamber, the guiding plate is used to guide the sliding of the sliding chamber, an insertion port is arranged on the housing corresponding to one end of the guiding plate, a spring is arranged between one end of the housing away from the insertion port and the sliding chamber, the spring pushes the sliding chamber towards the direction of the insertion port, a PCBA component is arranged at one end of the housing away from the insertion port, the PCBA component is used to deliver external power supply to the device to be charged, a clamping component is arranged between the sliding chamber and the device to be charged, the clamping component is used to clamp the device to be charged, and a locking component is arranged between the sliding chamber and the housing, the locking component is used to lock the sliding chamber and connect the device to be charged with the PCBA component.

[0006] Optionally, the PCBA component includes a contact and a plug. The contact is located in the middle of the spring. The contact is used to contact and connect with the contact piece at one end of the device to be charged. The plug is located on the side of the PCBA component away from the contact. The other end of the plug extends outside the housing. The plug is used to connect with an external power supply socket.

[0007] Optionally, the locking component includes a locking groove and a pull rod. A cross plate is provided on the side of the sliding chamber. A sliding groove and a locking groove are formed on the cross plate. The locking groove is located at one end of the sliding groove close to the insertion port. The locking groove communicates with the sliding groove. A pull rod is provided on the side of the sliding chamber close to the sliding groove. The end of the pull rod away from the insertion port is fixedly connected to the housing. The end of the pull rod close to the insertion port is a hook. The hook extends into the sliding groove. The hook can slide in the sliding groove and the locking groove as the sliding chamber moves. When the hook enters the locking groove, it can hook the locking groove.

[0008] Optionally, two fork grooves are formed at the connection between the locking groove and the sliding groove. The two fork grooves are respectively a locking fork groove and an unlocking fork groove. A V-shaped connection groove is provided on the side of the locking fork groove and the unlocking fork groove away from the sliding groove. A V-shaped boss is formed among the locking fork groove, the unlocking fork groove and the connection groove. When the hook moves into the connection groove, it can hook on the boss.

[0009] Optionally, a first step is provided at the intersection of the unlocking fork groove and the locking fork groove. The bottom surface of the unlocking fork groove is higher than the bottom surface of the locking fork groove. A second step is provided at the intersection of the locking fork groove and the connection groove. The bottom surface of the locking fork groove is higher than the bottom surface of the connection groove. A third step is provided at the intersection of the connection groove and the unlocking fork groove. The bottom surface of the connection groove is higher than the bottom surface of the unlocking fork groove.

[0010] Optionally, the pull rod is an elastic pull rod.

[0011] Optionally, the sliding chamber is of a cylindrical structure. The opening on the side of the sliding chamber corresponding to the spring is smaller than the opening on the side of the sliding chamber corresponding to the insertion port.

[0012] Optionally, an annular receiving groove is formed inside the side wall of the sliding chamber corresponding to one end of the spring. The receiving groove is used to receive the spring.

[0013] Optionally, the clamping component includes a clamping block. At least one arc-shaped clamping block is provided inside the sliding chamber. The clamping block is connected to the inside of the sliding chamber through an elastic member. A clamping groove with an arc-shaped cross section is formed at the position on the side of the device to be charged corresponding to the clamping block.

[0014] Optionally, the number of the clamping blocks is two, and the two clamping blocks are evenly distributed circumferentially around the axis of the sliding compartment.

[0015] Through the technical solution of the present application, the housing is fixed inside the vehicle. A sliding compartment, a PCBA assembly and a locking assembly are arranged inside the housing, so that the device to be charged can be inserted into the sliding slot. Through the locking of the locking assembly, the device to be charged is electrically connected to the contact on the PCBA assembly, so that the device to be charged can be charged. At the same time, the device to be charged can also be accommodated and fixed inside the housing, and the device to be charged can be prevented from shaking with the bumps of the vehicle. In addition, the device can lock the device to be charged by pushing the device to be charged, and unlock the charging device by pushing the device to be charged again, making it more convenient to charge the device to be charged. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0017] Figure 1 External structural schematic diagram of the charger with a locking function according to the present application;

[0018] Figure 2 Exploded structural schematic diagram of the charger with a locking function;

[0019] Figure 3 Internal structural schematic diagram of the charger with a locking function;

[0020] Figure 4 Internal state structural schematic diagram of the charger with a locking function when installing the device to be charged;

[0021] Figure 5 For Figure 4 Partial enlarged structural schematic diagram at A in

[0022] Figure 6 Structural schematic diagram of the sliding compartment of the charger with a locking function;

[0023] Figure 7 For Figure 6 Partial enlarged structural schematic diagram at B in

[0024] Figure 8 Internal structural schematic diagram of the sliding compartment of the charger with a locking function.

[0025] Explanation of the reference numerals in the drawings:

[0026] 1. Housing; 110. First housing; 111. Insertion port; 112. Mounting hole; 120. Second housing; 121. Guide plate; 2. Sliding compartment; 201. Receiving groove; 202. Latching block; 3. Spring; 4. PCBA assembly; 5. Cross plate; 510. Sliding groove; 520. Locking groove; 521. Locking fork groove; 522. Unlocking fork groove; 523. Connecting groove; 524. First step; 525. Second step; 526. Third step; 527. Boss; 6. Pull rod; 601. Hook; 90. Device to be charged; 901. Card slot.

[0027] The realization of the purpose, functional features and advantages of this application will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of this application will be clearly and completely described with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly disposed on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0030] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to this application.

[0031] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" that appears throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0032] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present application. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the efficacy that the present application can produce and the purpose that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present application.

[0033] When carrying out outdoor activities, people usually need to drive. When the flashlight runs out of power, it usually needs to be charged in the car. There are usually two ways to charge the existing flashlight. The first way is to connect and charge it through a charging cable, and the second way is to charge it after removing the battery. With both of these two charging methods, the flashlight does not have a fixed storage position. Since the cars driving outdoors are usually bumpy, it will cause the flashlight to roll back and forth, which may not only cause damage to the flashlight, but also the rolling flashlight may distract the driver, thus possibly causing unnecessary risks. Therefore, a more convenient and safe flashlight charging method is needed in the car.

[0034] In view of this, the present application provides a charger with a locking function for charging a device to be charged 90, including: a housing 1, a sliding chamber 2 is arranged inside the housing 1, a guiding plate 121 is arranged on the side of the housing 1 corresponding to the sliding chamber 2, the guiding plate 121 is used to guide the sliding of the sliding chamber 2, an insertion port 111 is arranged on the housing 1 corresponding to one end of the guiding plate 121, a spring 3 is arranged between one end of the housing 1 away from the insertion port 111 and the sliding chamber 2, the spring 3 pushes the sliding chamber 2 towards the direction of the insertion port 111, a PCBA component 4 is arranged at one end of the housing 1 away from the insertion port 111, the PCBA component 4 is used to deliver external power supply to the device to be charged 90, a clamping component is arranged between the sliding chamber 2 and the device to be charged 90, the clamping component is used to clamp the device to be charged 90, and a locking component is arranged between the sliding chamber 2 and the housing 1, the locking component is used to lock the sliding chamber 2 and connect the device to be charged 90 with the PCBA component 4.

[0035] In an embodiment of the present application, referring to Figures 1 to 8 , the above-mentioned charger with a locking function includes a housing 1. The housing 1 is a square box-shaped structure, and the housing 1 is composed of a first housing 1101 and a second housing 1201. A plurality of mounting holes 112 are arranged on the first housing 1101, and the mounting holes 112 are used to be fixed inside the vehicle by screws. A sliding chamber 2 is arranged inside the housing 1, a guiding plate 121 is arranged on the side of the housing 1 corresponding to the sliding chamber 2, the guiding plate 121 is fixedly installed inside the housing 1, the sliding chamber 2 is slidably connected with the guiding plate 121, and the guiding plate 121 is used to guide the sliding of the sliding chamber 2. A cylindrical insertion port 111 is arranged on the housing 1 corresponding to one end of the guiding plate 121. The insertion port 111 and the first housing 1101 are integrally formed structures, and the insertion port 111 is used for the device to be charged 90 to be inserted. The device to be charged 90 is a flashlight, and the device to be charged 90 can also be other devices that need to be charged, such as a power bank.

[0036] Referring to Figure 2 and Figure 3 , a spring 3 is arranged between one end of the housing 1 away from the insertion port 111 and the sliding chamber 2. One end of the spring 3 is connected with the inside of the housing 1, and the other end of the spring 3 is connected with the sliding chamber 2. The spring 3 pushes the sliding chamber 2 towards the direction of the insertion port 111, so that one end of the sliding chamber 2 moves towards the direction of the insertion port 111.

[0037] Referring to Figure 4 and Figure 8, the sliding compartment 2 is a cylindrical structure. The opening of the sliding compartment 2 on the side corresponding to the spring 3 is smaller than the opening on the side corresponding to the insertion port 111, so that the device to be charged 90 will not penetrate out from the other side after being inserted into the sliding compartment 2. An annular receiving groove 201 is provided inside the side wall of the sliding compartment 2 corresponding to one end of the spring 3. The receiving groove 201 is used to receive the spring 3. One end of the spring 3 corresponding to the sliding compartment 2 extends into the receiving groove 201. When the sliding compartment 2 moves inward to compress the spring 3, the spring 3 will contract into the receiving groove 201.

[0038] Reference Figure 3 、 Figure 4 and Figure 8 , at least one arc-shaped clamping block 202 is arranged inside the sliding compartment 2. The clamping block 202 is connected to the inside of the sliding compartment 2 through an elastic member. The number of the clamping blocks 202 is preferably two. The two clamping blocks 202 are circumferentially and evenly distributed around the axis of the sliding compartment 2. The two clamping blocks 202 facilitate clamping the device to be charged 90. A clamping groove 901 with an arc-shaped cross-section is provided at the position corresponding to the clamping block 202 on the side surface of the device to be charged 90. When the device to be charged 90 is inserted into the sliding compartment 2, the clamping block 202 in the sliding compartment 2 will be stuck in the clamping groove 901, so as to clamp and fix the device to be charged 90.

[0039] Reference Figure 2 and Figure 3 , a PCBA component 4 (printed circuit board assembly) is arranged at one end of the inside of the housing 1 away from the insertion port 111. The PCBA component 4 includes a contact member and a plug. The contact member is located in the middle of the spring 3. The contact member is used to contact and connect with the contact piece at one end of the device to be charged 90, so that current can be input into the device to be charged 90 through the contact member. An elastic structure is provided on the contact member, so that the device to be charged 90 can be connected to the contact member within a certain range. The plug is located on the side of the PCBA component 4 away from the contact member. The other end of the plug extends out of the housing 1. The plug is used to connect with an external power supply socket.

[0040] Reference Figure 5 and Figure 6, a locking component is provided between the sliding cabin 2 and the housing 1. The locking component includes a locking groove 520 and a pull rod 6. A cross plate 5 is provided on the side of the sliding cabin 2. The cross plate 5 and the sliding cabin 2 are integrally formed structures. A sliding groove 510 and a locking groove 520 are formed on the cross plate 5. The sliding groove 510 is a long groove structure parallel to the axis of the sliding cabin 2. The locking groove 520 is located at one end of the sliding groove 510 close to the insertion port 111. The locking groove 520 communicates with the sliding groove 510. A pull rod 6 is provided on the side of the sliding cabin 2 close to the sliding groove 510. One end of the pull rod 6 away from the insertion port 111 is fixedly connected to the housing 1. One end of the pull rod 6 close to the insertion port 111 is a hook 601. The hook 601 is an L-shaped hook structure. The hook 601 extends into the sliding groove 510. As the sliding cabin 2 moves, the hook 601 can slide in the sliding groove 510 and the locking groove 520.

[0041] Reference Figure 5 and Figure 7 , two fork grooves are formed at the connection between the locking groove 520 and the sliding groove 510. The two fork grooves are respectively a locking fork groove 521 and an unlocking fork groove 522. A first step 524 is provided at the intersection of the unlocking fork groove 522 and the locking fork groove 521. The bottom surface of the unlocking fork groove 522 is higher than the bottom surface of the locking fork groove 521. When the hook 601 moves from the sliding groove 510 into the locking groove 520, it can only enter the locking fork groove 521. A V-shaped connecting groove 523 is provided on the side of the locking fork groove 521 and the unlocking fork groove 522 away from the sliding groove 510. A second step 525 is provided at the intersection of the locking fork groove 521 and the connecting groove 523. The bottom surface of the locking fork groove 521 is higher than the bottom surface of the connecting groove 523. So that the hook 601 can only move from the locking fork groove 521 into the connecting groove 523. A third step 526 is provided at the intersection of the connecting groove 523 and the unlocking fork groove 522. The bottom surface of the connecting groove 523 is higher than the bottom surface of the unlocking fork groove 522. So that the hook 601 can only move from the connecting groove 523 into the unlocking fork groove 522. A V-shaped boss 527 is formed in the middle of the locking fork groove 521, the unlocking fork groove 522 and the connecting groove 523. When the hook 601 moves into the connecting groove 523, it can hook on the boss 527, so that the pull rod 6 can pull the sliding cabin 2 to prevent the sliding cabin 2 from moving towards the insertion port 111. At the same time, the hook 601 can also exit the connecting groove 523, thereby unlocking the sliding cabin 2 and enabling the sliding cabin 2 to move back towards the insertion port 111 under the action of the spring 3.

[0042] The unlocking fork groove 522 and the sliding groove 510 are on the same straight line. The above pull rod 6 is an elastic pull rod 6. As the hook 601 enters the locking fork groove 521, the pull rod 6 will be under pressure and produce elastic deformation. When the hook 601 returns to the unlocking fork groove 522 or the sliding groove 510, the pressure on the pull rod 6 is eliminated, so that when the hook 601 moves in the locking groove 520, the reverse movement of the hook 601 is avoided.

[0043] In summary, when the device is in use, the device to be charged 90 is inserted into the sliding chamber 2 from the insertion port 111. At this time, the clamping block 202 in the sliding chamber 2 will snap into the card slot 901 on the device to be charged 90. As the device to be charged 90 is continuously pushed, the sliding chamber 2 will move towards the PCBA assembly 4 against the force of the spring 3. During the movement of the sliding chamber 2, the hook 601 on the pull rod 6 will move along the sliding slot 510 towards the locking slot 520; when the hook 601 enters the locking slot 520, the hook 601 will enter the connecting slot 523 through the locking fork slot 521. At this time, the device to be charged 90 can be released, and the sliding chamber 2 will move towards the insertion port 111 under the action of the spring 3. The hook 601 will move along the V-shaped connecting slot 523 to the middle of the connecting slot 523. At this time, the hook 601 will hook on the boss 527, thereby preventing the sliding chamber 2 from continuing to move towards the insertion port 111. At this time, the contact piece on the device to be charged 90 will be connected to the contact member, so that the device to be charged 90 can be charged; when the device to be charged 90 needs to be taken out, press the device to be charged 90 inward. The device to be charged 90 will push the sliding chamber 2 to move towards the PCBA assembly 4, so that the hook 601 will move along the connecting slot 523 to the unlocking fork slot 522. Then release the device to be charged 90. The sliding slot 510 will move towards the insertion port 111 under the action of the spring 3. At the same time, the hook 601 will also move along the unlocking fork slot 522 to the sliding slot 510 and move along the sliding slot 510 to the end far from the locking slot 520. At this time, the device to be charged 90 can be grasped and pulled out.

[0044] Through the technical solution of this application, the housing is fixed inside the vehicle. A sliding chamber, a PCBA assembly and a locking assembly are arranged inside the housing, so that the device to be charged can be inserted into the sliding slot. Through the locking of the locking assembly, the device to be charged is electrically connected to the contact member on the PCBA assembly, so that the device to be charged can be charged. At the same time, the device to be charged can also be accommodated and fixed inside the housing, which can prevent the device to be charged from shaking with the bumps of the vehicle. In addition, the device can lock the device to be charged by pushing the device to be charged, and unlock the charging device by pushing the device to be charged again, making it more convenient to charge the device to be charged.

[0045] The above are only optional embodiments of this application, and do not limit the patent scope of this application accordingly. All equivalent structural transformations made under the inventive concept of this application by using the content of the specification and drawings of this application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of this application.

Claims

1. A charger with a locking function, used for charging a device to be charged, characterized in that: It comprises: a shell, a sliding cabin is arranged inside the shell, a guide plate is arranged on the side of the shell corresponding to the sliding cabin, the guide plate is used to guide the sliding cabin to slide, an insertion port is arranged on one end of the shell corresponding to the guide plate, a spring is arranged between the end of the shell away from the insertion port and the sliding cabin, the spring pushes the sliding cabin in the direction of the insertion port, a PCBA assembly is arranged at the end of the shell away from the insertion port, the PCBA assembly is used to deliver external power to the device to be charged, a clamping assembly is arranged between the sliding cabin and the device to be charged, the clamping assembly is used to clamp the device to be charged, a locking assembly is arranged between the sliding cabin and the shell, the locking assembly is used to lock the sliding cabin and connect the device to be charged with the PCBA assembly.

2. The charger with locking function as claimed in claim 1, characterized in that: The PCBA assembly includes a contact and a plug, wherein the contact is located in the middle of the spring, and is used to contact and connect with a contact sheet at one end of the device to be charged. The plug is located on a side of the PCBA assembly away from the contact, and the other end of the plug extends to the outside of the shell, and the plug is used to connect to an external power supply socket.

3. The charger with locking function as claimed in claim 1, characterized in that: The locking assembly includes a locking groove and a pull rod. A horizontal plate is provided on the side of the sliding cabin, and a sliding groove and a locking groove are opened on the horizontal plate. The locking groove is located at one end of the sliding groove close to the insertion port, and the locking groove is communicated with the sliding groove. A pull rod is provided on the side of the sliding cabin close to the sliding groove, and the end of the pull rod away from the insertion port is fixedly connected to the shell. The end of the pull rod close to the insertion port is a hook, and the hook extends into the sliding groove. The hook can slide in the sliding groove and the locking groove as the sliding cabin moves, and the hook enters the locking groove and can hook the locking groove.

4. The charger with locking function as claimed in claim 3, characterized in that: Two branch grooves are provided at the connection between the locking groove and the sliding groove, and the two branch grooves are respectively a locking branch groove and an unlocking branch groove. A V-shaped connecting groove is provided on the side of the locking branch groove and the unlocking branch groove away from the sliding groove. A V-shaped boss is formed in the middle of the locking branch groove, the unlocking branch groove and the connecting groove, and the hook can be hooked on the boss when it moves into the connecting groove.

5. The charger with locking function as claimed in claim 4, characterized in that: A first step is arranged at the intersection of the unlocking fork groove and the locking fork groove, and the bottom surface of the unlocking fork groove is higher than the bottom surface of the locking fork groove. A second step is arranged at the intersection of the locking fork groove and the connecting groove, and the bottom surface of the locking fork groove is higher than the bottom surface of the connecting groove. A third step is arranged at the intersection of the connecting groove and the unlocking fork groove, and the bottom surface of the connecting groove is higher than the bottom surface of the unlocking fork groove.

6. The charger with locking function as claimed in claim 5, characterized in that: The pull rod is an elastic pull rod.

7. The charger with locking function as claimed in claim 1, characterized in that: The sliding cabin is a cylindrical structure, and an opening of the sliding cabin on a side corresponding to the spring is smaller than an opening of the sliding cabin on a side corresponding to the insertion port.

8. The charger with locking function as claimed in claim 1, characterized in that: An annular accommodating groove is provided inside the side wall of the sliding compartment corresponding to one end of the spring, and the accommodating groove is used to accommodate the spring.

9. The charger with locking function as claimed in claim 1, characterized in that: The clamping assembly includes a clamping block, at least one arc-shaped clamping block is arranged inside the sliding cabin, the clamping block is connected to the inside of the sliding cabin through an elastic member, and a clamping groove with an arc-shaped cross-section is provided on the side of the device to be charged corresponding to the position of the clamping block.

10. The charger with locking function as claimed in claim 9, characterized in that: The number of the clamping blocks is two, and the two clamping blocks are evenly distributed circumferentially around the axis of the sliding compartment.

Images